Freescale Semiconductor Computer Accessories 802154 User Manual

802.15.4/Zigbee

Embedded Bootloader

Reference Manual

802154EBRM/D

Rev. 0.0, 09/2004

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Contents

About This Book ..................................................................................................................... vi

Audience ......................................................................................................................................................vi

Organization.................................................................................................................................................vi

Conventions ................................................................................................................................................vii

Definitions, Acronyms, and Abbreviations.................................................................................................vii

References..................................................................................................................................................viii

Revision History ........................................................................................................................................viii

Chapter 1 Embedded Bootloader Description .................................................................... 1-1

1.1

Target............................................................................................................................................1-1

1.1.1 Ported Targets...............................................................................................................................1-2

1.2

1.3

1.4

Features.........................................................................................................................................1-3

Benefits.........................................................................................................................................1-3

Potential Issues .............................................................................................................................1-3

1.4.1 Optional Firmware Upload Settings .............................................................................................1-4

Chapter 2 Using the Embedded Bootloader........................................................................ 2-1

2.1

Upload Firmware ..........................................................................................................................2-1

2.1.1 Use Case One................................................................................................................................2-1

2.1.2 Use Case Two...............................................................................................................................2-2

2.1.3 Safe Mode Boot ............................................................................................................................2-2

2.2

Updating Non-volatile Memory (NVM).......................................................................................2-3

2.2.1 An Example of How to Change the MAC Address......................................................................2-3

2.3

2.4

System Bus Frequency..................................................................................................................2-4

UART Baud Rate..........................................................................................................................2-4

Chapter 3 Test Tool – Zigbee Flash Tool............................................................................. 3-1

3.1 Graphical User Interface (GUI) Version.......................................................................................3-2

3.1.1 Using the Tools Menu Option.......................................................................................................3-2

3.1.2 Using the View Menu Option.......................................................................................................3-3

3.1.3 Selecting the Firmware File to Upload .........................................................................................3-4

3.1.4 Using the Help Menu....................................................................................................................3-6

3.1.5 Changing the NVM Data in Flash or File.....................................................................................3-6

3.2

Command Line Version (CMD)...................................................................................................3-8

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3.2.1 Normal Use Example (Default) ....................................................................................................3-9

3.2.2 Flash Erase Disabled Example......................................................................................................3-9

Chapter 4 Embedded Bootloader Programming................................................................. 4-1

4.1

4.2

Programming To An Empty (Erased) Board ................................................................................4-1

Upgrading The Embedded Bootloader .........................................................................................4-5

Chapter 5 Application Integration Reference Guide........................................................... 5-1

5.1 Product Deliverables.....................................................................................................................5-1

5.1.1 Embedded Bootloader Image........................................................................................................5-1

5.1.2 Application Support Files .............................................................................................................5-1

5.1.3 Application Linker File.................................................................................................................5-2

5.2

Application....................................................................................................................................5-2

5.2.1 Compiler Defines..........................................................................................................................5-2

5.2.2 Unreferenced Symbols..................................................................................................................5-2

5.2.3 System Clock Setup......................................................................................................................5-3

5.3

Application Support Files .............................................................................................................5-3

5.3.1 DigiType.h....................................................................................................................................5-3

5.3.2 Gb60_io.h .....................................................................................................................................5-3

5.3.3 Crt0.c and Crt.h.............................................................................................................................5-4

5.3.4 Embedded_Bootloader.h and Embedded_Bootloader.c ...............................................................5-5

5.3.5 NV_Data.c and NV_Data.h ..........................................................................................................5-5

5.3.6 ISR_Vectors.c...............................................................................................................................5-5

5.3.7 DummyIsr.c ..................................................................................................................................5-6

Chapter 6 Port Integration Reference Guide....................................................................... 6-1

6.1

Embedded Bootloader Build Environment...................................................................................6-1

6.1.1 HCS08 Compiler...........................................................................................................................6-1

6.1.2 HCS08 Linker...............................................................................................................................6-1

6.1.3 HCS08 LibMaker..........................................................................................................................6-1

6.2

Product Deliverables.....................................................................................................................6-2

6.2.1 Embedded_Bootloader.mcp..........................................................................................................6-2

6.2.2 HCS08_Flash_Lib.Lib..................................................................................................................6-2

6.2.3 Embedded_Bootloader_Functionality_Lib.Lib ............................................................................6-2

6.2.4 Source Files...................................................................................................................................6-2

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6.3

Porting to a Specific Target ..........................................................................................................6-3

6.3.1 Code and Data Segments ..............................................................................................................6-3

6.3.2 Standard Libraries.........................................................................................................................6-3

6.3.3 Compiler #defines.........................................................................................................................6-3

6.4

Source Files...................................................................................................................................6-4

6.4.1 Target.h.........................................................................................................................................6-4

6.4.2 Reset_Vector.c..............................................................................................................................6-5

6.4.3 Embedded_Bootloader_Target.h ..................................................................................................6-5

6.4.4 HW_Init.h .....................................................................................................................................6-6

6.4.5 HW_Init.c .....................................................................................................................................6-6

6.4.6 main.c............................................................................................................................................6-6

Chapter 7 Embedded Bootloader Public Function Description......................................... 7-1

7.1

802.15.4/Zigbee Application Accessible Functions .....................................................................7-1

7.1.1 Enable_Download_Firmware .......................................................................................................7-1

7.1.2 Hard_Reset....................................................................................................................................7-3

7.1.3 Update_NV_RAM........................................................................................................................7-3

7.1.4 NV_Flash_Setup...........................................................................................................................7-4

7.1.5 FL_ICG_Setup..............................................................................................................................7-4

7.1.6 UART_Port_Select .......................................................................................................................7-5

Chapter 8 Embedded Bootloader Memory Map.................................................................. 8-1

Appendix A Release Folder and File Structure...................................................................A-1

A.1.

A.2.

Folder Structure ...........................................................................................................................A-1

File Structure................................................................................................................................A-2

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About This Book

This guide provides a detailed description of Freescale’s Embedded Bootloader and describes how to port

Freescale’s Embedded Bootloader to a specific PCB/target..

The Embedded Bootloader is intended for use with the IEEE® 802.15.4 evaluation kits (EVK). However,

it is possible to upload applications with the Embedded Bootloader in the development phase, but the

Embedded Bootloader will not provide any debug functions.

The Embedded Bootloader provides an easy and inexpensive way to upload new firmware and eliminate

the requirements for expensive debug/development tools. The only requirement is a standard PC with an

RS232 UART/USB interface running Windows 2000 or XP.

The Embedded Bootloader must be used with the Zigbee Flash Tool which can be found in the Test Tool

Suite ‘Test Tool.exe’.

This document describes Embedded Bootloader version 5.01.

Audience

This document is intended for application developers.

Organization

This document is organized into eight chapters and one appendix.

Chapter 1

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Embedded Bootloader Description — This chapter gives an overview of the

Embedded Bootloader.

Using the Embedded Bootloader — This chapter describes the basic

functionality of the Embedded Bootloader.

Test Tool, Zigbee Flash Tool — This chapter describes the Zigbee Flash Tool.

The GUI and Command Line versions are covered.

Programming the Embedded Bootloader — This chapter describes how to

program the Embedded Bootloader to flash memory.

Application Integration Reference Guide — This chapter describes the

deliverables required to build an 802.15.4/Zigbee Application with the

Embedded Bootloader.

Chapter 6

Chapter 7

Port Integration Reference Guide — This chapter describes the deliverables

required and how to integrate them to make an executable Embedded

Bootloader for a specific PCB.

Embedded Bootloader Public Function Description — This chapter provides

a description of the, from an 802.15.4/Zigbee application, accessible functions

in the Embedded Bootloader.

Chapter 8

Memory Map — This chapter describes the Bootloader Memory Map.

Appendix A

Release Folder and File Structure — This appendix shows the folder and file

structure for this release.

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Conventions

This document uses the following notational conventions:

•

Courier monospaced type indicates commands, command parameters, code examples,

expressions, data types, and directives.

•

Italic type indicates replaceable command parameters.

All source code examples are in C.

Definitions, Acronyms, and Abbreviations

BDM debugger

A debugger using the BDM interface for communication with the MCU. An

example is the P&E BDM Multilink debugger for HCS08.

BDM

EVB

Background Debug Module

Evaluation Boards - this term covers the DIG-528-2 (EVK) and DIG536-2

(SARD) boards.

EVK

GUI

MAC

MCU

NVM

Evaluation Kit

Graphical User Interface

Medium Access Control

MicroController Unit

None-Volatile Memory

Personal Computer

PCB

S19

Printed Circuit Board

‘S19’ is the file extension used for the Motorola binary image format. The S19

file encapsulates the binary image as a list of ASCII records. Each record

contains a length -, address -, data - and checksum field. The 16 bit address field

allows a memory space for up to 64 KB. The S19 can be generated with

Metroworks Codewarrior IDE and is the product from the linking process. S19

does not contain additional information to a debugger (where to look for source

files).

Safe Mode Boot

HIWAVE

The Embedded Bootloader boots up using safe default system values.

P&E HCS08 debugger GUI.

CPROG

P&E HCS08 flash programming tool called from HIWAVE. The tool is also

available in a command line version where scripts can be made.

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References

[1] Freescale 802.15.4 MAC/PHY Software Reference Manual, 802154MPSRM/D

[2] Zigbee.hlp (see Test Tool installation directory .\help)

[3] Freescale MC908HCS08GB60/GT60 MCU Data Sheet, MC9S08GB60/D

[4] Freescale Application Note, Handling MAC Address Erasure, AN2825/D

[5] Freescale Application Note, Zigbee/802.15.4 Evaluation Kit, Quick Start Guide, AN2772/D

[6] Freescale Embedded Bootloader User’s Guide, MC13192FLUG/D

[7] Freescale Switch Demo Application, AN2773/D

Revision History

The following table summarizes revisions to this manual since the previous release (Rev. 0.0).

Revision History

Location

Revision

Entire Document

This document supercedes revision 2.4 of the

Freescale Embedded Bootloader User’s Guide,

MC13192FLUG/D.

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Chapter 1

Embedded Bootloader Description

The Embedded Bootloader is intended for use with the IEEE® 802.15.4 evaluation kits (EVK). However,

it is possible to upload applications with the Embedded Bootloader in the development phase, but the

Embedded Bootloader will not provide any debug functions.

The Embedded Bootloader provides an easy and inexpensive way to upload new firmware and eliminate

the requirements for expensive debug/development tools. The only requirement is a standard PC with an

RS232 UART/USB¹⁾interface running Windows 2000 or XP.

The Embedded Bootloader must be used with the Zigbee Flash Tool which can be found in the Test Tool

Suite ‘Test Tool.exe’.

This document describes Embedded Bootloader version 5.01.

The Embedded Bootloader is located in a protected 4 KB flash block in the highest memory area

(0xF000-0xFFFF) of the Freescale MC908HCS08GB60/GT60 microcontroller. (It cannot be accidentally

erased.) A BDM debugger is required to erase the Embedded Bootloader. See the Handling MAC Address

Erasure Application Note, AN2825/D

¹⁾At least one of these communication interfaces must be supported by the target PCB.

1.1 Target

The Embedded Bootloader runs on the Freescale MC908HCS08GB60/GT60 MCU.

The MC908HCS08GB60/GT60 is a member of Freescale’s low-cost, high-performance HCS08 family. It

has 60 KB embedded flash (flash sector size of 512 bytes) and 4 KB embedded RAM..

The Embedded Bootloader uses the MC13192 CLKO. See Chapter 2 for more information.

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1.1.1 Ported Targets

The Embedded Bootloader must be ported (I/O mapped) to a specific PCB for proper functionality and is

currently ported to the following Freescale PCBs:

Axiom AXM-0308:

•

PC Communication Interface:

RS232/UART on COM1 (SCI1)/

RS232/UART on COM2 (SCI2)

Safe Mode Boot

Short pins 2-3 on COM1 (SCI1)/

COM2 (SCI2)

Version Number

“AX-0308 Ver 5.01”

DIG528-2 EVK

•

PC Communication Interface:

RS232/UART on COM1 (SCI1)/

USB (SCI2)

•

Safe Mode Boot

Version Number

Short pins 2-3 on COM1-port (SCI1)

“528&536 Ver 5.01”

DIG536-2 SARD

•

PC Communication Interface:

RS232/UART on COM1 (SCI1)

Short pins 2-3 on COM1-port (SCI1)

“528&536 Ver 5.01”

Safe Mode Boot

Version Number

RD01

•

PC Communication Interface:

Safe Mode Boot

RS232/UART/USB on COM1 (SCI1)/

RS232/UART/USB on COM2 (SCI2)

•

Short pins 2-3 on COM1 (SCI1)/

COM2 (SCI2)

Version Number

“ RD01 Ver 5.01”

NOTE

The generic RD01 target can be used with any PCB using the Freescale

Reference Design version 01 I/O layout. The PCB must support at least

one communication interface. If a USB is the only interface, use a

jumper to short SCI pins 2 and 3 to make Safe Mode Boot available.

Refer to Section 6.3 for details on how to port the Embedded Bootloader to a specific PCB.

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1.2 Features

The following features are supported:

•

Upload firmware (802.15.4/Zigbee application) in Motorola S19 record format through

UART/USB. The S1 data record length must be set to 32 bytes

•

Auto-Detection of the PC communication interface (see Section 1.1.1, Ported Targets).

Initialize memory including stack of uploaded firmware

Initialize the system clock. Self clocked mode and MC13192 clock setup. Power save mode

supported

•

Run time update/change of the NVM

NOTE

See the Freescale 802.15.4 MAC/PHY Software Reference Manual,

802154MPSRM/D, for a detailed description on NVM layout and values.

1.3 Benefits

•

Users do not have to buy expensive third party debug/development tools to get started.

Users can update the 802.15.4/Zigbee application firmware without having to build in additional

code for interfacing to the Embedded Bootloader (See Section 2.1.3, Safe Mode Boot).

•

Application firmware can be updated after production by users. However, this requires that the

final product has a communication interface (UART/USB).

Users can update the 802.15.4/Zigbee application firmware even when it is malfunctioning (See

Section 2.1.3, Safe Mode Boot).

The 802.15.4/Zigbee application firmware does not have to include initializing or flash

programming code and can thereby minimize code size.

Can update any NVM data specified by the 802.15.4/Zigbee application.

1.4 Potential Issues

•

Uses 4 KB of flash (~6.7 % on a MC908HCS08GB60/GT60) and 93 bytes of RAM

(~2,3 % on a MC908HCS08GB60/GT60)

•

Extended power/boot up time (~17ms) because the Embedded Bootloader must detect the

presence of an application.

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1.4.1 Optional Firmware Upload Settings

•

Skip flash erase

Disabled The 802.15.4/Application/NVM (except production data section) is erased

(default)

Enabled

The 802.15.4/Application/NVM is NOT erased

•

Erase production data (get production data from firmware file)

Disabled The production data section (with MAC address) in NVM are preserved. All

other NVM values are updated with the values from the S19 record file

(default)

Enabled

The production data (with MAC address) and all other values in NVM are

erased. All NVM values are updated with the values from the S19 record file

NOTE

Care must be taken when enabling this option. The user must save a

backup of vital production data (MAC address). The production data can

be manually added to the NVM structure in the NV_Data.c file.

•

Do not reset after upload

Disabled The system is automatically reset after upload (default)

Enabled The system must be manually reset by user

•

Skip firmware checksum verification

Disabled A checksum verification of the S19 file data record is performed ²⁾(default).

NOTE

The Embedded Bootloader will report the address of the first data

mismatch found in the current S19 data record. System must be reset if

an error is reported. Check the optional settings and try again.

Enabled

No checksum verification is performed. Flash programming errors cannot be

detected.

²⁾The UART/USB communication channel is also protected with a protocol checksum.

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Chapter 2

Using the Embedded Bootloader

This chapter describes the Embedded Bootloader functionality. A detailed description of the functions

briefly mentioned in this chapter can be found in Chapter 7.

2.1 Upload Firmware

The Embedded Bootloader can be used in different system configurations depending on the PCB and the

application. The application should have a user interface feature that makes it possible for the application

to call the Enable_Download_Firmware() function:

The application can optionally call the Hard_Reset() function to perform a reset, or the board can be reset

manually. The board will now start up in Embedded Bootloader mode.

Start the PC-Tool. See Chapter 3 for more information.

2.1.1 Use Case One

In this case, users send a specific command via the UART to enable firmware upload

MC908HCS08GB60⁽¹⁾/MC13192

Application

NVM

Test Tool

802.15.4 MAC

802.15.4 PHY

RS232

Device Driver UART⁽²⁾

UART or USB

¹⁾Or MC908HCS08GT60

²⁾Or USB

Figure 1 Application Supporting RS232 UART or USB Interface

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2.1.2 Use Case Two

In this use case, users push a button on the board to enable firmware upload.

MC908HCS08GB60⁽¹⁾/MC13192

Application

NVM

802.15.4 MAC

User Interface

Push Buttons

802.15.4 PHY

I/O

Device Driver GPIO

S101 S102 S103 S104

¹⁾Or MC908HCS08GT60

Figure 2 Application Supporting an I/O Interface

2.1.3 Safe Mode Boot

The Safe Mode Boot Mode is a special startup mode where the Embedded Bootloader boots using safe

system settings thereby resetting the system to a known (default) state.

The Safe Mode Boot can be used to disable the detection of an invalid/malfunctioning application due to

items such as code errors, corrupt NVM data, or internal flash programming errors among others. All the

NVM memory (except production data and MAC address) is completely erased.

The Safe Mode Boot can also be used to upload firmware without first calling the

Enable_Download_Firmware() function. This could be useful if the use cases (as shown in Section 2.1,

Upload Firmware) are not applicable.

Users must perform the following steps to conduct a Safe Mode Boot.

1. Power off the board

2. Disconnect RS232 UART cable (if the RS232 UART interface is used)

3. Short UART TX and RX (pin 2-3) (This works even though the 802.15.4/Zigbee application does not

use the UART interface.)

4. Power up again. All LEDs are off.

5. Wait until LED1 goes on (< 1 second)

6. Power off the board

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7. Remove short from UART TX and RX and connect UART cable again (if the RS232 UART interface

is used)

8. Power up again

9. Embedded Bootloader is ready to receive new firmware (all LEDs on)

10. Start the PC-Tool. See Chapter 3, for more information.

NOTE

The Safe Mode Boot description is only valid for the Freescale ported

versions of the Embedded Bootloader. Refer to the 802.15.4 Embedded

Bootloader Reference Manual, 802154EBRM/D, for more details about a

specific port of the Embedded Bootloader.

2.2 Updating Non-volatile Memory (NVM)

The following steps show how to update the NVM data from an application (code).

1. The Embedded Bootloader must be present on the board.

NOTE

All EVBs are shipped with the Embedded Bootloader pre-programmed

in flash. The Embedded Bootloader can only be erased/programmed with

a BDM debugger.

Call the Update_NV_RAM() function. This function can change any NVM data.

2.2.1 An Example of How to Change the MAC Address

The following code shows an example of how to change the MAC address.

Update_NV_RAM(&(NV_RAM_ptr->MAC_Address)[0], &pPacket[DATA_INDEX], 8);

NOTE

pPacket – contains the new MAC address.

Any NVM data can in code be read as a normal construct. For example,

use the NV_RAM_ptr to get access to individual data.

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2.3 System Bus Frequency

The MC908HCS08GB60/GT60 starts in 4 MHz self clocked mode. The init code changes this to 8 MHz

after a few instructions from reset.

If NVM data is found, the system clock (MC908HCS08GB60/GT60 ICG module and MC13192 CLKO)

and other options are setup as specified by the uploaded application. See the Freescale 802.15.4

MAC/PHY Software Reference Manual, 802154MPSRM/D, for more details.

If no NVM data can be found, the following (safe mode boot) values are used:

•

MC13192 CLKO = 62.5 KHz

MC908HCS08GB60/GT60 bus clock = 16 MHz

2.4 UART Baud Rate

If NVM data is found, the UART baud rate is setup as specified by the uploaded application. Several

values can be used. See the MC908HCS08GB60/GT60 MCU Data Sheet, MC9S08GB60/D for more

information.

The baud rate depends on the NVM values specified by the application. See the Freescale 802.15.4

MAC/PHY Software Reference Manual, 802154MPSRM/D, for more details.

If no NVM data is found, the following (safe mode boot) values are used:

•

UART baud rate 19200 kbps, 8 data, 1 start, 1 stop, none parity.

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Chapter 3

Test Tool – Zigbee Flash Tool

The Zigbee flash tool is a part of the general Zigbee Test Tool. This chapter provides a brief description

of how to use the Zigbee Test Tool to upload new firmware. For more details about installation and other

features, see the documentation for the Zigbee Test Tool and the Zigbee.hlp file in Test Tool installation

directory .\help.

The flash programming part of the Test Tool can be used with two different user interfaces.

1. The GUI-version in ‘Test Tool.exe’

2. The command line version in ‘Bootloader.exe’ in the ‘S19’ folder.

This description covers Embedded Bootloader version 5.00 of the Zigbee Test Tool.

Uploadable applications in Motorola S19 file format must be copied to the

[installation directory]\Freescale\Test Tool\S19 directory in advance.

Copy any new applications in S19 format to this folder.

NOTE

The actual window layout may differ from the figures shown in this

document. Refer to the Freescale Zigbee/802.15.4 web page for new or

updated applications.

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3.1 Graphical User Interface (GUI) Version

To use the GUI version of the Test Tool, execute the following file:

[installation directory]\Freescale\Test Tool\Test Tool.exe

3.1.1 Using the Tools Menu Option

After clicking on the Tools menu option, click the Communication Settings option to choose the baud rate

specified for the current embedded application.

Notice that applications require that you push one or more buttons or some other functions to enable

upload of new firmware. See the Zigbee/802.15.4 Evaluation Kit Quick Start Guide, AN2772/D, for a

description of what to do for a specific application.

If no application is downloaded, use the default settings specified for the Embedded Bootloader. See

Chapter 2 for more information.

Use the Add… buttons. Click “Close”.

Baud Selection

Tools Menu

Add Buttons

Close Button

Buttons

Figure 3 Tools Menu Selection

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3.1.2 Using the View Menu Option

After clicking the View menu option, select port COMx and click “OK”. Choose the baud rate specified

for the current embedded application. See the Zigbee/802.15.4 Evaluation Kit Quick Start Guide,

AN2772/D, for a description of what to do for a specific application.

If no application is uploaded, you must use the default settings specified for the Embedded Bootloader.

See Chapter 2 for more information.

NOTE

If the USB interface is used, the USB option appears as a new COM port.

Figure 4 View Menu Option

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3.1.3 Selecting the Firmware File to Upload

In the ‘Flash Section’ window, click on the application file to upload and then click on the “Upload”

button. The upload progress bar begins to indicate upload progress.

Upload

Progress Field

Application

Files

Upload Button

Status/Error

Information Field

Figure 5 Firmware Upload

The Status/Error Information Field shows the Status/Error Information received from the Embedded

Bootloader.

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After a successful upload of the firmware, the window appears as shown in Figure 6.

NOTE

A system reset is performed (default) after upload as shown in Figure 6.

Automatic Reset

Enabled

Figure 6 After a Successful Firmware Upload

NOTE

If the uploaded application uses another baud rate, it is required to

change baud rate values in order to be able to communicate with the

board.

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3.1.4 Using the Help Menu

Click on the Embedded Bootloader About box to see the Embedded Bootloader sub version number.

Figure 7 Embedded Bootloader Tool Version

NOTE

The last line is reported from the Embedded Bootloader on the PCB.

This version number is only sent to the PC from power up (not on

reset).

3.1.5 Changing the NVM Data in Flash or File

If users click on an application in the list, it displays the NVM values in the selected application file. If

the uploaded application supports NVM dump, it is possible to read the NVM from the board.

The NVM data can be changed in two different ways:

1. If the uploaded application does not support NVM data editing it is possible to edit the NVM data

in the application file before it is uploaded to the board and save it back in the application file for

later upload.

2. If the uploaded application does support NVM data editing it is possible to edit the NVM data

after the board has been uploaded with the application. For example, the file contains default

values. The Freescale EVK PTC application supports this feature.

NOTE

No production specific information is available in this example window.

Use caution when editing the clock related configuration values. The

values must match each other. There is no sanity check on the user

entered values, though there is a check on length. See the

MC908HCS08GB60/GT60 MCU Data Sheet, MC9S08GB60/D about

how to specify valid register values for the HCS08.

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Figure 8 System Configuration Window

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3.2 Command Line Version (CMD)

The command line version of the Embedded Bootloader flash programming tool must be called with

parameters:

Execute ‘Bootloader.exe’ without parameters to show a parameter list:

Figure 9 Command Line Version (Parameter List)

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3.2.1 Normal Use Example (Default)

Normal use example (default).

”Bootloader EVK_PTC_Demo.s19 /C:COM2 /B:19200 /-E /-A /-O /-S”

Figure 10 Command Line Version (Using Several Options)

NOTE

It is not possible to edit NVM data with the CMD version.

3.2.2 Flash Erase Disabled Example

Flash erase disabled example.

”Bootloader EVK_PTC_Demo.s19 /C:COM2 /B:19200 /E /-A /-O /-S ”

Figure 11 Command Line Version (Flash Erase Disable Option)

NOTE

The flash is not erased and a flash programming error is detected at

address 0xEFFE. This is the address of the Embedded Bootloader control

flags, which was not erased. The error message is expected.

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Chapter 4

Embedded Bootloader Programming

This chapter describes how to program the Embedded Bootloader with a P&E Multilink for HCS08 BDM

debugger. The Embedded Bootloader is normally downloaded to the PCB where production data is also

written. Users must employ different procedures depending on what needs to be programmed. Users can

program the Embedded Bootloader to an empty (erased) PCB or they can upgrade to a newer version of

the Embedded Bootloader. Follow the procedures in Section 4.1, Programming To An Empty (Erased)

Board if the PCB is empty (erased).

Users must make a copy of the production data section in the NVM (see Section 5.3.5, NV_Data.c and

NV_Data.h) if they need to upgrade the Embedded Bootloader. This can be done either manually or

automatically by a custom made script with the command line version of the CPROG tool. The command

line version is not described further. Follow the procedures as shown in Section 4.2 on how to make a

copy of the production data.

4.1 Programming To An Empty (Erased) Board

This section describes how to program the Embedded Bootloader to an empty (erased) board.

1. Execute the HIWAVE.EXE file from your chosen installation directory. For example,

[installation directory]\Metrowerks\CodeWarrior_CW08_V3.0\Prog\

2. From the main window, setup the target by selecting the “Component” menu, then click on “Set

Target”. The “Set Target” window appears as shown in Figure 12.

Figure 12 Set Target Window

3. In the “Processor” drop down menu, select HCS08. From the “Target Interface” drop down menu,

select P&E Target Interface, the click on the “OK” button.

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The “Connection Assistant” window appears where you can select the debugger interface connection.

As shown in Figure 13, a USB connection was chosen and the HCS08 was selected as the CPU type.

Click the “OK” button.

Figure 13 Connection Assistant Window

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4. Click on “Load Application” under the “File” menu to open the “Load Executable File” window.

Specify application file to program in the “Load Executable File” window as shown in Figure 14.

Select “Motorola S-Record (*.s19)” using the “Files of type:” drop down menu. Navigate to the

folder where a copy of the Embedded Bootloader is located. Select the “Embedded Bootloader.s19”

file and click the “Open” button.

Figure 14 Load Executable Window

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The Embedded Bootloader is now programmed to the PCB as shown in the Status Window in Figure 15.

Figure 15 Status Window

5. Remove power and disconnect the BDM cable from the PCB. Next, power up the PCB. The PCB is

now ready to upload an application. See Chapter 2 for details about how to upload an application.

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4.2 Upgrading The Embedded Bootloader

This section describes how to upgrade the Embedded Bootloader to a newer version with the P&E

Multilink BDM debugger.

1. Execute the HIWAVE.EXE file from your chosen installation directory. For example,

[installation directory]\Metrowerks\CodeWarrior_CW08_V3.0\Prog\

2. From the main window, setup the target by selecting Setup Target, the select the “Component” menu,

and click on “Set Target”. The “Set Target” window appears as shown in Figure 16.

Figure 16 Set Target Window

3. From the “Processor” drop down menu, select HCS08. From the “Target Interface” drop down menu,

select P&E Target Interface, then click the “OK” button.

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4. The “Connection Assistant” window appears where you can select the debugger interface connection.

As shown in Figure 17, a USB connection was chosen and the HCS08 was selected as the CPU type.

Click the “OK” button.

Figure 17 Connection Assistant Window

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5. Make a copy of the NVM sector (both NVM0 and NVM1) with the production data.

Select the “PEDebug” menu, select “Programming Options”, and then choose “Start Expert Mode

Programmer”. The “Programmer Expert” window appears as shown in Figure 18.

Figure 18 Programmer Expert Window

6. In the “Programmer Expert” window, click on “UR Upload Range”. The “Start Address” window

appears as shown in Figure 19. Here you specify the start address for the NVM section. Click the

“OK” button. For NVM0 use 0x152F and for NVM1 use 0x172F.

Figure 19 Start Address Window

7. In the “End Address” window, which looks very similar to the “Start Address” window, specify the

end address for the NVM section and then click the “OK” button. For NVM0 use 0x155B and for

NVM1 use 0x175B.

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8. As shown in Figure 20, use the S19 window to specify which S19 file to store active NVM data to

and then click the “OK” button. For NVM0 use ‘PD_NVM0.s19’ and for NVM1 use

‘PD_NVM1.s19’.

Figure 20 S19 File Window

9. Close “Programmer Expert” window.

10. Use the PC tool “Production_Data_Converter.exe” to convert the production data in NVM to default

NVM sector NVM0. Copy the “Production_Data_Converter.exe” tool to the folder that contains the

PD_NVM0.s19 and PD_NVM1.s19 files. Execute the ‘Production_Data_Converter.exe’. The output

is an PD_NVM.s19 file containing the production data from the active NVM sector.

NOTE

The “Production_Data_Converter.exe” tool can be found in the EVK release

“EVK_3_0B” in folder .\source\Zigbee_EVK\EVK_Common\CPROG_Tool\Scripts\

11. Click on “Load Application” under the “File” menu to open the “Load Executable File” window.

Specify the application file to program using the “Load Executable” window as shown in Figure 21.

Select the “Motorola S-Record (*.s19)” under “Files of type:”, then navigate to the folder where a

copy of the Embedded Bootloader is located. Select the “Embedded Bootloader.s19” file and click the

“Open” button.

Figure 21 Load Executable File Window

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The Embedded Bootloader is now programmed to the PCB as shown in Figure 22.

Figure 22 Status Window

12. Write NVM production data back by selecting the “PEDebug” menu. Then select “Programming

Options” and “Start Expert Mode Programmer”. Select “SS Specify S-record” and locate the

PD_NVM.s19 file built in Step 10. Select the “PM Program Module” option and production data is

written to flash.

13. Remove power and disconnect the BDM cable from PCB. Next, power up the PCB.

The PCB is now ready to upload an application. See Chapter 2 for more information about how to

upload an application.

NOTE

The applications must have the production section in the NVM cleared.

That is, the application image must contain 0xFF's in the production data

section of the NVM.

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Chapter 5

Application Integration Reference Guide

This chapter describes the deliverables required to build an 802.15.4/Zigbee Application with the

Embedded Bootloader.

NOTE

The Freescale Switch Demonstration application is available with

complete source code. The Switch Demonsration shows how to make an

802.15.4 application with the Embedded Bootloader. Refer to the Switch

Demonstration Application Note, AN2773, for more details.

5.1 Product Deliverables

To be able to make an application with the Freescale Embedded Bootloader, you need three major

components.

•

Embedded Bootloader Image

Application Support Files

Application Linker File

5.1.1 Embedded Bootloader Image

The Embedded Booloader executable image for a specific PCB must exist on the PCB in advance. If not,

it must be downloaded to the PCB with a BDM debugger like the P&E Multilink BDM debugger for

HCS08. See Section 1.1.1 Ported Targets for more details.

NOTE

Use caution when making an 802.15.4/Zigbee Application with the

Embedded Bootloader. Several versions (different version numbers) exist

with different supported features. Ensure that you do not use a feature

that is not supported by the Embedded Bootloader version on the PCB

and that a version of the Embedded Bootloader is preloaded on the PCB.

5.1.2 Application Support Files

A few application source files must be included in the 802.15.4/Zigbee application for proper interface to

the Embedded Bootloader. See Section 5.3, Application Support Files for more details.

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5.1.3 Application Linker File

The 802.15.4/Zigbee application code must be linked with the following linker file in order to work with

the Embedded Bootloader interface. The linker file specifies fixed data and code segments. See linker file

for more details. Make sure to use the linker file matching the Embedded Bootloader on the PCB:

Ptc_w_Embedded_Bootloader.ach

NOTE

This file can be used with the MC908HCS08GB60/GT60 MCU.

5.2 Application

This section describes build environment topics and source files necessary to build a working

802.15.4/Zigbee application with the Embedded Bootloader.

5.2.1 Compiler Defines

The following compiler #define must be specified to enable Embedded Bootloader functionality in an

802.15.4/Zigbee application:

#define BOOTLOADER_ENABLED

5.2.2 Unreferenced Symbols

The Embedded Bootloader interface variables, NVM, and strings with version numbers, are not

referenced directly from the 802.15.4/Zigbee application code. Because of this, it is required to add

dummy references to these (and other) unreferenced symbols to prevent the linker file from removing the

symbols during optimization. The dummy references can be placed in any reference function, but

Freescale recommends adding them to the main() function.

The following code is an example from a SMAC application main() function:

#ifdef BOOTLOADER_ENABLED

if( (Freescale_Copyright[0] == 0x00) ||

(Firmware_Database_Label[0] == 0x00) ||

(SMAC_Version[0] == 0x00) ||

(SPHY_Version[0] == 0x00) ||

(NV_RAM_ptr->Freescale_Copyright[0] == 0x00) ||

(NV_RAM0.MAC_Address[0] == 0x00) ||

(NV_RAM1.MAC_Address[0] == 0x00) ||

(boot_loader_control == ((uint8_t)0x00)) ||

(boot_loader_flag == ((uint8_t)0x00))

)

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{

}

// Do something to aviod that code is removed by linker

5.2.3 System Clock Setup

The Embedded Bootloader contains the ICG_Setup() function which is called if the Embedded

Bootloader must start. The Embedded Bootloader sets up the system clock as specified in the NVM

section (ICG) if available. If not a default value is used.

The 802.15.4/Zigbee application must include a system clock setup function. The 802.15.4/Zigbee

application can access the clock setup FL_ICG_Setup() function in the Embedded Bootloader. This

allows the application to save code space for implementing a system clock setup function. Any clock

setting can be setup by specifying the proper ICG register values in the NVM data section.

The 802.15.4/Zigbee application should also have a “lost clock lock” ISR function which calls the

FL_ICG_Setup() function. This function must be added to the ISR vector table.

The following is an example of an ISR function to handle lost lock of clock (CLKO).

__interrupt void FLL_Lost_Lock_ISR(void)

{

// Setup ICG module again to prevent that system hangs forever.

ICGS1 |= 0x01; // Clear FLL lost lock interrupt

#if defined BOOTLOADER_ENABLED

FL_ICG_Setup(); // Call ICG_Setup()in Embedded Bootloader

#endif defined BOOTLOADER_ENABLED

}

5.3 Application Support Files

The 802.15.4/Zigbee application must include some support source code to make an interface to the

Embedded Bootloader application. The needed files are delivered to users who want to use the Embedded

Bootloader in their system.

NOTE

Some of the files are global header files from the 802.15.4 MAC/PHY release.

Look for new or updated application support files at the Freescale

Zigbee/802.15.4 web page.

5.3.1 DigiType.h

This file contains some C-language type definitions used in the source files.

5.3.2 Gb60_io.h

This is an MC908HCS08GB60 MCU interface file. All peripherals embedded in the MCU are listed with

their absolute addresses.

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NOTE

This file can also be used with the MC908HCS08GT60 MCU.

5.3.3 Crt0.c and Crt.h

These files contain the basic initialization code (basic system clock, memory and stack setup). The normal

basic init file(s) (like the start08.c from Metrowerks) is not needed when the Embedded Bootloader is

embedded.

In an 802.15.4/Zigbee application with Embedded Bootloader, these files only contain the _startupdata

structure. The Embedded Bootloader handles all the basic initialization (memory and stack setup) of the

application. That is, the application’s main() function will be the first item called (entry point).

NOTE

Do not include basic initialization (memory and stack setup) when

building an application with the Embedded Bootloader. Place any

necessary initialization function calls in the main() function. Whatever,

the initialization function or only the _startupdata structure is included is

controlled by compiler #defines. See Section 5.2.1, Compiler Defines

Application for more information.

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5.3.4 Embedded_Bootloader.h and Embedded_Bootloader.c

These are the interface files for the 802.14.4/Zigbee application. They contain function pointers to

functions accessible in the Embedded Bootloader. These files also contain absolute addresses, which

should not be changed.

Ensure that the two Embedded Bootloader control flags, which control whether the 802.15.4/Zigbee

application starts or not, are included in the 802.15.4/Zigbee application build. See Section 5.2.2 for more

details.

#pragma CONST_SEG APP_BOOTLOADER_FLAGS

// Default setting for how BootLoader downloads firmware

const uint8_t boot_loader_control = ALL_BIT_ENABLED;

const uint8_t boot_loader_flag = EXECUTE_APPLICATION;

#pragma CONST_SEG DEFAULT

The 802.15.4/Zigbee application must also call the “void BootLoader_Interface_Init(void)” function to

set up pointers to the Embedded Bootloader accessible function. The function must be called once during

system initialization.

NOTE

In earlier versions, these files were titled “FreeLoader_inf.c” and

“FreeLoader_inf.h”. Do not user the “FreeLoader_inf.c” and

“FreeLoader_inf.h” files with the Embedded Bootloader.

5.3.5 NV_Data.c and NV_Data.h

The NVM is not a part of the Embedded Bootloader. However, it is advised to make the NVM a part of

the 802.15.4/Zigbee application.

The Embedded Bootloader can use the information in NV memory, but it has default values (safe mode

boot) to cover scenarios where no NV memory is available, that is, the Embedded Bootloader would be

locked to use the default values.

5.3.6 ISR_Vectors.c

The Embedded Bootloader redirects the ISR vector table to 0x0EFC0, i.e. the 802.15.4/Zigbee application

ISR vector table must be locate at 0x0EFC0 to 0xEFFD (see linker file).

The file also contains a reset vector. The reset vector is not used (defined out) when using the Embedded

Bootloader. The system reset vector is in the Embedded Bootloader address space (0xFFFE). The

Embedded Bootloader has two system variables located where the redirected “reset vector” is locate at

0xEFFE to 0xEFFF. The variables control the startup of the Embedded Bootloader.

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5.3.7 DummyIsr.c

This file contains a dummy ISR function which makes a break if a BDM debugger is attached to the

BDM connector. An illegal instruction reset occurs if no BDM debugger is attached. The function is

added to all unused ISR vectors in the ISR_Vector.c file.

NOTE

Users can change this function to any desired functionality.

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Chapter 6

Port Integration Reference Guide

This chapter describes the Embedded Bootloader source code release deliverables and how to integrate

them to make an executable Embedded Bootloader for a specific PCB.

NOTE

For user convenience, several readme.txt files containing more

information are located in various subfolders.

6.1 Embedded Bootloader Build Environment

This chapter describes the Embedded Bootloader build environment. The Embedded Bootloader

application is built under the Metrowerks IDE CodeWarrior Development Studio for Freescale HC08 3.0,

build 030506.

6.1.1 HCS08 Compiler

All Embedded Bootloader source files are compiled with the following compiler and with the ‘Generate

Code for HCS08’ Code Generation option enabled.

Source file:

Setting:

hw_hc08_compiler.dll, version 5.0.8.0

-Cs08 -CswMaxLF0 -CswMinLF0 -CswMinSLB9999 -Lasm=%n.lst -Lasmc=h -

Ot -Ou -Onf -OnB=alr -OnCstVar -OnPMNC -Or -TE1uE -WmsgNu=acdet

6.1.2 HCS08 Linker

All Embedded Bootloader object files are linked with the following linker to build an executable file.

Source file:

Setting:

hw_hc08_linker.dll, version 5.0.8.0

-B -EnvSRECORD=s19 -EnvTEXTPATH=Zigbee_Data\Zigbee_Debug\ -

WStdoutOn

The Embedded Bootlaoder MUST be linked with the following linker file.

.\Embedded_Bootloader\prm\Embedded_Bootloader_HCS08.ach

Specific allocated code and variables must not be reallocated, but users can add new code and data

segments.

NOTE

The 802.15.4 and Zigbee applications that interface to the Embedded

Bootloader must be linked with the "Ptc_w_Embedded_Bootloader.ach"

file for proper functionality.

6.1.3 HCS08 LibMaker

The delivered libraries were made with the following libmaker.

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Source file:

Setting:

hw_hc08_libmaker.dll, version 5.0.8.0

None

6.2 Product Deliverables

The Freescale Embedded Bootloaader consists of four major components. Refer to Appendix A for a

complete list of released files.

6.2.1 Embedded_Bootloader.mcp

This is the Metrowerks Codewarrior mcp project file. This file is used to build the release of the

Embedded Bootloader.

NOTE

It is required that you have Metrowerks Codewarrior installed on your PC to build the

Embedded Bootloader.

6.2.2 HCS08_Flash_Lib.Lib

The library contains functions to write to the internal flash of the HCS08 MCU. The library also contains

functions to handle NVM run-time updates.

The flash library version number is found by searching for the ASCII text string “HCS08 Flash Lib” in

the ‘HCS08_Flash_Lib.Lib’. The version number is only available from flash library version 5.00.

NOTE

The HCS0_Flash_Lib.Lib can also be included directly in an application

for run-time update of NVM. Refer to the HCSO8 Flash Application

Note, AN2770/D for more information.

6.2.3 Embedded_Bootloader_Functionality_Lib.Lib

The library contains the internal functionality of the Embedded Bootloader. For example, the state

machine which handles the firmware download, the UART drivers, checksum verification functions and

others.

The Embedded Bootloader functionality library version number is found by searching for the ASCII text

string “EB Func Lib” in the ‘Embedded_Bootloader_Functionality_Lib.Lib’ file.

6.2.4 Source Files

This section provides a brief description of the source files. Refer to Appendix A for more details. The

source files described are those which define the PCB interface. For example, the I/O mapping that

connects the MCU and RF chip.

Embedded_Bootloader_Target.h

Specific Embedded Bootloader defines

For example, the Embedded Bootloader version number.

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HW_Init.c

HW_Init.h

Reset_Vector.c

main.c

Hardware init functions

Init function prototypes and defines.

System reset vector.

Embedded Bootloader main function.

6.3 Porting to a Specific Target

This section provides guidelines on how to port the Embedded Bootloader to a specific PCB/target.

6.3.1 Code and Data Segments

The Embedded Bootloader must be linked with the linker file as specified in Section 6.1.2. Several code

and data segments are listed and must not be changed. Refer to the map file as described in Chapter 8 for

more details.

6.3.2 Standard Libraries

The Embedded Bootloader must include the ansiis.libfrom Metrowerks for a successful build. The

library is part of the Metrowerks CodeWarrior installation and is located in the following path:

[Install Folder]\Metrowerks\CodeWarrior CW08_V3.0\lib\HC08c\*.*

6.3.3 Compiler #defines

No compiler #defines are necessary.

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6.4 Source Files

This section describes the source files.

6.4.1 Target.h

The user must define the PCB target specific #defines in the Target.hin the

.\802.15.4_Headers\Ghdr. file for a successful port.

NOTE

Several other #defines are made in the target description in target.h. The

#defines are used by the 802.15.4 MAC/PHY build. The listed #defines

are the ones which must (also) be defined for the Embedded Bootloader:

Example for the Freescale TARGET_DIG528_2 and TARGET_DIG536_2:

MC13192 reset pin connection:

#define HWAssertAbelReset

#define HWDeAssertAbelReset

PTCD &= ~0x10;

PTCD |= 0x10;

// Reset = 0;

// Reset = 1;

Optional for Safe Mode Boot indicator function (LED pin connections):

#define LED1ON PTDD &= 0xFE;

#define LED1OFF PTDD |= 0x01;

#define LED1TOGGLE PTDD ^= 0x01;

#define LED2ON PTDD & = 0xFD;

#define LED2OFF PTDD | = 0x02;

#define LED2TOGGLE PTDD ^ = 0x02;

#define LED3ON PTDD & = 0xF7;

#define LED3OFF PTDD | = 0x08;

#define LED3TOGGLE PTDD ^ = 0x08;

#define LED4ON PTDD & = 0xEF;

#define LED4OFF PTDD | = 0x10;

#define LED4TOGGLE PTDD ^ = 0x10;

The MC13192 attention and reset pin (bit) positions:

#define ABEL_ATT_PIN

(1<<2)

#define ABEL_RESET_PIN (1<<4)

HCS08 port setup macros:

#define mSETUP_PORT_A //PTAPE = 0x3C;\

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//PTADD = 0x00;

//All Port A input

#define mSETUP_PORT_B //PTBD = 0x00;\

//PTBPE = 0x00;\

//PTBDD = 0x00;

#define mSETUP_PORT_C PTCDD = (ABEL_RESET_PIN | ABEL_ATT_PIN );

Optional for Safe Mode Boot indicator function (LEDs as output):

#define mSETUP_PORT_D PTDPE = 0x00;\

PTDDD = (0x01 | 0x02| 0x08 | 0x10);

6.4.2 Reset_Vector.c

The system reset vector.

NOTE

The application does not have a reset vector. If a reset occurs in an

application, the Embedded Bootloader’s reset vector is called.

6.4.3 Embedded_Bootloader_Target.h

Users must define the following #defines in the Embedded_Bootloader_Target.hto achieve a

successful port.

Version number of the build:

// Version number update:

// - Big change (interface/main code structure/new feature) Y.xx, increment

// - Smaller change (function code structure/bug fix) x.Yx, increment Y

// - Small change (bug fix) x.xY, increment Y

#define EMBEDDED_BOOTLOADER_VERSION "5.01" // Number used with all PCB/Targets

NOTE

Use caution if the version number is changed. You should only change

the PCB board number (#define EMBEDDED_BOOTLOADER_TARGET)

to indicate a special PCB version.

Example for the TARGET_DIG528_2 and TARGET_DIG536_2:

#if defined TARGET_DIG528_2 || defined TARGET_DIG536_2

// PCB board number for release

#define EMBEDDED_BOOTLOADER_TARGET "528&536"

// Setup port as output where "signal" must be set/cleared to indicate

safe mode boot

#define SAFE_MODE_PORT_SETUP PTDDD |= 0x01; // Port D bit 0

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#define SET_OUTPUT LED1ON // Defined in Target.h

#endif defined TARGET_DIG528_2 || defined TARGET_DIG536_2

6.4.4 HW_Init.h

This file contains prototypes of all the init functions and defines.

6.4.5 HW_Init.c

This file contains some hardware init functions which depend on the PCB layout.

void HWResetAbel(void)

Reset of MC13192 RF chip (do not change)

void Safe_Boot_Mode_Indicator(void) Users can change this function so it matches the

functions available for a particular PCB. The

function can also be left empty. Default is a GPIO

pin set low to light an LED.

void HW_Init()

The init main function.

NOTE

User can add more functions if required for a particular PCB.

Do not change the calling sequence.

6.4.6 main.c

This file contains the Embedded Bootloader main function and the Embedded version number.

void main(void)

It calls the hardware init function and then the

Embedded Bootloader state machine. The state

machine never returns.

NOTE

Dummy references are made to the version number strings for the

Embedded_Bootloader_Functionality_Lib and HCS08_Flash_Lib to

place the numbers in the executable image. If the version numbers are

not required, they can be removed by removing the reference to the

version number which frees up more code memory for user code.

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Chapter 7

Embedded Bootloader Public Function Description

This section describes the public functions which the 802.15.4/Zigbee application can call in the

Embedded Bootloader.

7.1 802.15.4/Zigbee Application Accessible Functions

The following functions, located in the Embedded Bootloader, are made accessible for 802.15.4/Zigbee

applications. For example, an 802.15.4/Zigbee application is not required to have programming routines

to store NVM data in flash. A function pointer, for each function of the below listed functions, is defined

in Embedded Bootloader.c:

Enable_Download_Firmware()

Hard_Reset()

NV_Flash_Setup()

Update_NV_RAM()

FL_ICG_Setup()

UART_Port_Select();

The Embedded_Bootloader.h file contains function pointer prototypes and must be included in source

files calling these functions. The function pointers are setup to point to functions with the same name in

the Embedded Bootloader.

extern Enable_Download_Firmware_ptr_t Enable_Download_Firmware;

extern Hard_Reset_ptr_t Hard_Reset;

extern NV_Flash_Setup_ptr_t NV_Flash_Setup;

extern Update_NV_RAM_ptr_t Update_NV_RAM;

extern ICG_Setup_ptr_t FL_ICG_Setup;

extern UART_Port_Select_ptr_t UART_Port_Select;

7.1.1 Enable_Download_Firmware

Prototype:

bool_t Enable_Download_Firmware

(

uint8_t interface_state,

uint8_t firmware_state

)

Description:

The application must call this function to make the system ready for a new firmware download. The

application must provide a way for the user to interact with the system to call this function.

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NOTE

All bits are enabled by default. Bits can only be disabled (erased in flash)

– never enabled. The bits are enabled again by the new firmware.

Input:

interface_state - The user selectable options. The below values should be

OR’ed together:

Embedded Bootloader control flags:

#define NO_BIT_ENABLED

((uint8_t)0x00)

((uint8_t)0x01)

// Option: “Skip flash erase”

#define ERASE_FLASH

// Option: “Do not reset after upload”

#define BOOT_AFTER_DOWNLOAD

((uint8_t)0x02)

// Option: “Erase production data”

#define KEEP_NV_RAM

((uint8_t)0x04)

// Option: “Skip firmware checksum verification”

#define PERFORM_FLASH_VERIFICATION ((uint8_t)0x08)

NOTE

The Embedded Bootloader control flags correspond to the “optional

firmware upload settings” which can be disabled/enabled in the Zigbee

Flash Tool. See Section 1.4.1, Embedded Bootloader Description for

details.

The value is inverted. To enable the bit mask option, the setting must be

set to 0. To disable the bit mask option, the setting must be set to 1.

Use firmware_state – control if Embedded Bootloader or the application must be started.

To enable download, the setting must be = DO_UPDATE_FIRMWARE.

Embedded Bootloader boot flag:

#define EXECUTE_APPLICATION

#define DO_UPDATE_FIRMWARE

#define FLASH_EMPTY

((uint8_t)0x55)

((uint8_t)0x00)

((uint8_t)0xFF)

Output:

True - Ready for reset.

False - Something went wrong in changing the state.

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7.1.2 Hard_Reset

Prototype:

void Hard_Reset(void)

Description:

The application can call this function to make a system reset. The reset is done by executing an illegal

instruction.

Input:

None

Output:

None

7.1.3 Update_NV_RAM

Prototype:

bool_t Update_NV_RAM

(

NV_RAM_Struct_t const *NV_RAM_Distination_ptr,

uint8_t *Source_ptr,

uint16_t Source_Length

)

Description:

The application can call this function to update any NVM parameter with new values specified in the

input parameters. There is no validation of input parameters.

NOTE

NVM can in code be read as a normal construct.

Input:

NV_RAM_Distination_ptr

Source_ptr

A pointer to current NV RAM data (ex. The MAC address), which must be changed.

A pointer to new NVM data, which must be stored.

Source_Length

The length (number of bytes) of the new NVM data to store.

Output:

True – NVM data stored.

False - Something went wrong (should never happen).

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7.1.4 NV_Flash_Setup

Prototype:

void NV_Flash_Setup(void)

Description:

This function should never be called under normal conditions. However, it should be called if any of the

other Embedded Bootloader functions malfunctions. The function sets up the flash functions (again), i.e.

copies the flash routines to RAM for execution and initialize the HCS08 flash module.

Input:

None

Output

None

7.1.5 FL_ICG_Setup

Prototype:

void FL_ICG_Setup(void)

Description:

This function can be called by the application. The function could be automatically called if the external

system clock is unstable/removed (from ISR function) and on power down/up (doze). This requires that

the FL_ICG_Setup is called from an ISR function.

NOTE

Application programmers can make their own system clock setup

function or call this function and just modify the ICG and MC13192

Input:

None

Output

None

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7.1.6 UART_Port_Select

Prototype:

void FL_ICG_Setup

(

uint8_t data_reg_address,

uint8_t status_reg_address

)

Description:

This function can be called when the application has detected the active communication interface if used

by the application. The communication interface can be any of the two SCI-ports (SCI1 or SCI2). When

called with the proper parameters the Embedded Bootloader knows the active communication interface.

Input:

data_reg_address

status_reg_address

Output

the address of the active SCI port data register (SCI1 = 0x1F or SCI2 = 0x27 )

the address of the active SCI port status 1 register (SCI1 = 0x1C or SCI2 = 0x24)

None

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Chapter 8

Embedded Bootloader Memory Map

Table 1.

Zigbee (MC9S08GB60/GT60) 802.15.4 Embedded Bootloader Memory Map

512 Bytes in a physical flash sector

Sector

Number

Address Address Size in

General HCS08 Map

and Usage

Embedded Bootloader Map

in hex

start

in hex

end

bytes

(sector

erase

address)

128

Direct Port Registers

127

Direct Addressing RAM Direct Addressing RAM "Fast

"Fast memory"

memory"

Direct Addressing

Sleep variable:

RAM "Fast memory"

gSeqPowerSaveMode

100

200

1FF

F5F

256

3424

RAM

Embedded Bootloader stack

RAM

F60

F6F

RAM

Unint RAM for init structure

NV_RAM_ptr

F70

F71

RAM

F72

F7F

RAM

Flash routines data

F80

FBC

106F

1077

107F

109E

11FF

13FF

15FF

RAM

Flash routines critical code

FBD

1070

1078

1080

109F

1200

1400

179

RAM

Static variables

RAM

Static no init variables

FLASH (section 1)

353

512

802.15.4/App. NV RAM block

0 (share)

1600

17FF

512

FLASH (section 1)

802.15.4/App. NV RAM block

1 (share)

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1 (share)

1800

182B

High Page Registers

(COP, Flash etc.)

High Page Registers (COP,

Flash etc.)

182C

1A00

1C00

1E00

2000

2200

2400

2600

2800

2A00

2C00

2E00

3000

3200

3400

3600

3800

3A00

3C00

3E00

4000

4200

4400

4600

4800

19FF

1BFF

1DFF

1FFF

21FF

23FF

25FF

27FF

29FF

2BFF

2DFF

2FFF

31FF

33FF

35FF

37FF

39FF

3BFF

3DFF

3FFF

41FF

43FF

45FF

47FF

49FF

468

512

FLASH (section 2)

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4A00

4C00

4E00

5000

5200

5400

5600

5800

5A00

5C00

5E00

6000

6200

6400

6600

6800

6A00

6C00

6E00

7000

7200

7400

7600

7800

7A00

7C00

7E00

4BFF

4DFF

4FFF

51FF

53FF

55FF

57FF

59FF

5BFF

5DFF

5FFF

61FF

63FF

65FF

67FF

69FF

6BFF

6DFF

6FFF

71FF

73FF

75FF

77FF

79FF

7BFF

7DFF

7FFF

512

FLASH (section 2)

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8000

8200

8400

8600

8800

8A00

8C00

8E00

9000

9200

9400

9600

9800

9A00

9C00

9E00

A000

A200

A400

A600

A800

AA00

AC00

AE00

B000

B200

B400

81FF

83FF

85FF

87FF

89FF

8BFF

8DFF

8FFF

91FF

93FF

95FF

97FF

99FF

9BFF

9DFF

9FFF

A1FF

A3FF

A5FF

A7FF

A9FF

ABFF

ADFF

AFFF

B1FF

B3FF

B5FF

512

FLASH (section 2)

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B600

B800

BA00

BC00

BE00

C000

C200

C400

C600

C800

CA00

CC00

CE00

D000

D200

D400

D600

D800

DA00

DC00

DE00

E000

E200

E400

E600

E800

EA00

B7FF

B9FF

BBFF

BDFF

BFFF

C1FF

C3FF

C5FF

C7FF

C9FF

CBFF

CDFF

CFFF

D1FF

D3FF

D5FF

D7FF

D9FF

DBFF

DDFF

DFFF

E1FF

E3FF

E5FF

E7FF

E9FF

EBFF

512

FLASH (section 2)

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

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118

119

EC00

EE00

EFC0

EFFE

EDFF

EFBF

EFFD

EFFF

512

448

FLASH (section 2)

802.15.4 app. ISR vectors

Embedded Bootloader

system flags (placed by

802.15.4 application)

120

F000

F00F

FLASH (section 2)

Embedded Bootloader

function ptrs (8 pieces)

120

F010

F014

F013

F050

FLASH (section 2)

Illegal opcode instruction

Flash routines critical code

(copy to RAM)

120

121

122

123

124

125

126

127

F051

F200

F400

F600

F800

FA00

FC00

FE00

FF1E

F1FF

F3FF

F5FF

F7FF

F9FF

FBFF

FDFF

FF1D

FFAF

431

512

286

146

FLASH (section 2)

Embedded Bootloader

version number string

127

FFB0

FFC0

FFBF

FFFD

NV Registers

ISR vectors (31

vectors - 25

ISR vectors (31 vectors - 25

implemented)

127

FFFE

FFFF

Reset vector "address Reset vector "address in

in Bootloader"

Bootloader"

65535

Must be = FFFF for

FFFF valid memory map.

NM = No meaning

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= May be used by Embedded Bootloader. 802.15.4/App.

can reuse this space (overwrite).

= Used by Embedded Bootloader. Data/code which must be located on the specified

address and (must/will) exists when the application is running

= May be used by

802.15.4/App.

= Used by 802.15.4/App. Data/code which must be

located on the specified address

If either the Embedded Bootloader and/or the 802.15.4/App. must not use a particular resource the color

from the "General HCS08 Map and Usage" is kept.

Cursive = fixed register and vectors in flash

Bold = MUST be located on this particular address - DO NOT

CHANGE.

Flash sector 120-127 is block protected and cannot be erased by SW.

Embedded Bootloader

Application

RAM

4096 bytes available

bytes available (not including ISR vectors and

4016 reset vector)

Code

bytes available. Read and written by Embedded Bootloader (2 sectors are used,

1024 so it occupies 1024 bytes flash).

NV-RAM

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Appendix A

Release Folder and File Structure

This appendix describes the folder and file structure for this release.

A.1. Folder Structure

802.15.4_Headers

Ghdr

Bin

Global headers from the 802.15.4 MAC/PHY Release

Embedded_Bootloader

AX-0308RevC

When target is built, the output files are stored here.

Freescale’s reference build of the Embedded Bootloader

for the Axiom AXM-0308

development board

DIG-528-2_DIG-536-2_RD01

DIG-528-2 and DIG-536-2 are Freescale’s reference

build for the DIG-528-2 and DIG-536-2 EVB’s.

RD01 is Freescale's reference build for all PCB's using

the Freescale Reference Design version 01.

Embedded_Bootloader_Functionality_Lib Embedded Bootloader functionality library

(source code not released)

HCS08_Flash_Lib

Embedded Bootloader HCS08 flash library

(source code not released)

prm

Linker file

sources

Source code

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A.2. File Structure

This section describes all of the files in the Embedded Bootloader release.

.\Embedded_Bootloader

Embedded_Bootloader.mcp

flash.hwc

Metrowerks Codewarrior project file

Hiwave system file

flash.hwl

Hiwave system file

flash.ini

Hiwave system file

.\Embedded_Bootloader\802.15.4_Headers\Ghdr

AbelReg.h

AppAspInterface.h

Debug.h

DigiType.h

Defined C data types

Embedded_Bootloader.h

New interface file to Embedded Bootloader

(after version 5.00)

FreeLoader_inf.h

Embedded Bootloader interface file (Freeloader)

(before version 5.00)

FunctionalityDefines.h

Gb60_io.h

NVM data structure

hwdrv_hcs08.h

MacPhy.h

NV_Data.h

NwkMacInterface.h

Phy_Spi.h

PhyMacMsg.h

PublicConst.h

Target.h

PCB target definition (I/O mapping)

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.\Embedded_Bootloader\Bin\Embedded_Bootloader\AX-0308RevC

Embedded_Bootloader.elf

Embedded_Bootloader.map

Embedded_Bootloader.s19

Elf format file

Map file

Freescale S19 file

.\Embedded_Bootloader\Bin\Embedded_Bootloader\DIG-528-2_DIG-536-2

Embedded_Bootloader.elf

Embedded_Bootloader.map

Embedded_Bootloader.s19

Elf format file

Map file

Freescale S19 file

.\Embedded_Bootloader\Bin\Embedded_Bootloader_Functionality_Lib

Embedded_Bootloader_Functionality_Lib.Lib Functionality library

.\Embedded_Bootloader\Bin\HCS08_Flash_Lib

HCS08_Flash_Lib.Lib

HCS08 flash library

.\Embedded_Bootloader\prm

Embedded_Bootloader_HCS08.ach

HCS08 GT60/GB60 linker file

.\Embedded_Bootloader\sources

Embedded_Bootloader_Target.h

HW_Init.c

HW_Init.h

Reset_Vector.c

main.c

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