Renesas Network Card H8 36079 User Guide
REG10J0077-0100  
Renesas Starter Kit for H8/36079  
Tutorial Manual  
RENESAS SINGLE-CHIP MICROCOMPUTER  
Rev.01.00  
Revision date: 17.OCT.2007  
Renesas Technology Europe Ltd.  
www.renesas.com  
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Chapter 1. Preface  
Cautions  
This document may be, wholly or partially, subject to change without notice.  
All rights reserved. Duplication of this document, either in whole or part is prohibited without the written permission of Renesas  
Technology Europe Limited.  
Trademarks  
All brand or product names used in this manual are trademarks or registered trademarks of their respective companies or  
organisations.  
Copyright  
© Renesas Technology Europe Ltd. 2007. All rights reserved.  
© Renesas Technology Corporation. 2007. All rights reserved.  
© Renesas Solutions Corporation. 2007. All rights reserved.  
Website:  
Glossary  
http://www.eu.renesas.com/  
CPU  
HEW  
LED  
PC  
Central Processing Unit  
High-performance Embedded Workshop  
Light Emitting Diode  
LCD  
ADC  
CD  
Liquid Crystal Display  
Analog to Digital Converter  
Compact Disc  
Program Counter  
E8A  
E8A On-chip debugger module  
RSK  
Renesas Starter Kit  
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Chapter 2. Introduction  
This manual is designed to answer, in tutorial form, the most common questions asked about using a Renesas Starter Kit (RSK): The  
tutorials help explain the following:  
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How do I compile, link, download, and run a simple program on the RSK?  
How do I build an embedded application?  
How do I use Renesas’ tools?  
The project generator will create a tutorial project with two selectable build configurations  
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‘Debug’ is a project built with the debugger support included.  
‘Release’ build demonstrating code suitable for release in a product.  
Files referred to in this manual are installed using the project generator as you work through the tutorials. The tutorial examples in this  
manual assume that installation procedures described in the RSK Quick Start Guide have been completed. Please refer to the Quick  
Start Guide for details of preparing the configuration.  
NOTE: These tutorials are designed to show you how to use the RSK and are not intended as a comprehensive introduction to  
the High-performance Embedded Workshop (HEW) debugger, the compiler tool-chains or the E8A Emulator – please consult the  
relevant user manuals for more in-depth information.  
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Chapter 3. Tutorial Project Workspace  
The workspace includes all of the files for two build configurations. The tutorial code is common to both the Debug and the Release build  
configurations. The tutorial is designed to show how code can be written, debugged then downloaded in a ‘Release’ situation.  
The build configuration menu in High-performance Embedded Workshop (HEW) allows the project to be configured such that certain  
files may be excluded from each of the build configurations. This allows the inclusion of the debug monitor within the Debug build, and  
its exclusion in the Release build. Contents of common C files are controlled with defines set up in the build configuration options and  
#ifdef statements within the same files.  
Maintaining only one set of project files means that projects are more controllable.  
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Chapter 4. Project Workspace  
4.1. Introduction  
HEW is an integrated development tool that allows the user to write, compile, program and debug a software project on any of the Renesas  
Microcontrollers. HEW will have been installed during the installation of the software support for the RSK product. This manual will describe  
the stages required to create and debug the supplied tutorial code.  
4.2. Creating a new Project Workspace  
To look at the program, start High performance Embedded Workshop from the Windows Start Menu.  
Open a new tutorial workspace from the [File -> New Workspace…] menu or select ‘Create a new project workspace’ when presented with  
the ‘Welcome!’ dialog.  
The example above shows the New Project Workspace dialog with the RSKH836079 selected.  
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Select the ‘H8S,H8/300’ CPU family and Tool-chain for the RSK  
Select the ‘RSKH836079’ Project type for the RSK from the project list.  
Enter a name for the workspace; all your files will be stored under a directory with this name.  
The project name field will be pre-filled to match the workspace name above; this name may be changed.  
Note: HEW allows you to add multiple projects to a workspace. You may add the sample code projects later so you may  
wish to choose a suitable name for the Tutorial project now.  
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Click <OK> to start the RSK Project Generator wizard.  
The next dialog presents the example projects available. Choose the Tutorial code which will be explained later in this manual. There is  
also an option for Sample code which provides examples for using various peripherals. This will open a new dialog allowing the selection  
of many code examples for the peripheral modules of the device. The final option is for an application build where the debugger is  
configured but there is no program code. This project is suitable for the user to add code without having to configure the debugger.  
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Select “Tutorial” as the type of project to generate and then click “Next”.  
Click “Finish” to create the project  
The project generator wizard will display a confirmation dialog. Press ‘OK’ to create the project and insert the necessary files.  
A tree showing all the files in this project will appear in HEW.  
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To view the file ‘main.c’, double click on the file in the Workspace window. A new window will open showing the code.  
4.3. Build Configurations and Debug Sessions  
The workspace that has been created contains two build configurations and two debug sessions. The Build Configuration allows the same  
project to be built but with different compiler options. The options available to the user are described fully in the HEW Users Manual.  
4.3.1. Build Configuration  
The build configurations are selected from the left hand drop down list on the tool bar. The options available are Debug and Release. The  
debug build is configured for use with the debugger. The Release build is configured for final ROM-able code.  
A common difference between the two builds may be the optimisation settings. With Optimisation turned on the Debugger may seem to  
execute code in an unexpected order. To assist in debugging it is often helpful to turn off optimisation on the code being debugged.  
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Select the ‘Debug Build’ Configuration.  
4.3.2. Debug Session  
The debug sessions are selected from the right hand drop down list on the tool bar. The options vary between RSK however one will  
always start Debug and include the type of debug interface. The alternate selection will be ‘DefaultSession’. The purpose of the debug  
sessions is to allow the use of different debugger tools or different debugger settings on the same project.  
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Select  
'SessionH8_Tiny_Super_Low_Power_E8A'  
debug session.  
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Chapter 5. Building the Tutorial Project  
The tutorial project build settings have been pre-configured in the tool-chain options. To view the tool chain options select the ‘Build’ Menu  
item and the relevant tool-chain. This should be the first option(s) on the drop down menu.  
The dialog that is displayed will be specific to the tool-chain selected.  
The configuration pane on the left hand side will exist on all the  
tool-chain options. It is important when changing any setting to be  
aware of the current configuration that is being modified. If you  
wish to modify multiple or all build configurations this is possible by  
selecting ‘All’ or ‘Multiple’ from the ‘Configuration’ drop down list.  
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Review the options on each of the tabs and  
‘Category’ drop down lists to be aware of the  
options available.  
When complete close the dialog box by clicking <OK>.  
5.1. Building Code  
There are three short cuts available for building the project.  
1. Select the ‘Build All’ tool bar button.  
This will build everything in the project that has not been excluded from the build. This includes the standard library.  
2. Select the ‘Build’ tool bar button.  
This will build all files that have changed since the last build. The standard library will not be built unless an option has been  
changed.  
3. Press ‘F7’  
This is equivalent to pressing the ‘Build’ button described above.  
Build the project now by pressing ‘F7’ or pressing one of the build icons as shown above.  
During the build each stage will be reported in the Output Window.  
The build will complete with an indication of errors and warnings encountered during the build.  
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5.2. Connecting the debugger  
For this tutorial it is not necessary to provide an external power supply to the board. The power will be obtained from the USB port. Please  
be aware that if you have too many devices connected to your USB port it may be shut down by windows. If this happens remove some  
devices and try again. Alternatively provide an external power source taking care to ensure the correct polarity and voltage.  
The Quick Start Guide provided with the RSK board gives detailed instructions on how to connect the E8A to the host computer. The  
following assumes that the steps in the Quick Start Guide have been followed and the E8A drivers have been installed.  
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Fit the LCD module to LCD on the RSK, so it lies above J1. Insure all the pins of the connector are correctly inserted in the  
socket.  
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Connect the E8A debugger to the USB port on your computer.  
Connect the E8A Debugger to the target hardware ensuring that it is plugged into the connector marked E8A which is  
nearest the power connector.  
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If supplying external power to the board this can be turned on now.  
5.3. Connecting to the target with the E8A  
This section will take you through the process of connecting to the device, programming the Flash and executing the code.  
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Select the  
‘SessionH8_Tiny_Super_Low_Power_E8A’  
debug session.  
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Click the <Connect> button  
on the debug toolbar  
Select the correct Microcontroller type  
(H8/36079 illustrated)  
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Select ‘Erase Flash and Connect’  
If the E8a is to provide power to the CPU board,  
select ‘Power Target from Emulator’ and choose  
‘5.0V’ option.  
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Press <OK>  
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Enter ID code as ‘0E8A’.  
The Flash Memory write program is  
downloaded.  
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The Output window in HEW will state  
‘Connected’  
Now is a good time to save the HEW session.  
Select ‘File’ | ‘Save Session’.  
If you have changed any workspace settings now is a good time to save the workspace.  
Select ‘File’ | ‘Save Workspace’.  
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Chapter 6. Downloading and Running the Tutorial  
Once the code has been built in HEW it needs to be downloaded to the RSK.  
There will now be an additional category in the workspace view for ‘Download Modules’  
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Right click on the download module listed and  
select ‘Download’.  
On completion the debugger and code are ready to be executed.  
To start debugging we need to reset the debugger and target.  
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Press ‘Reset CPU’ on the Debug Tool Bar.  
The File window should open the Tutorial code at the entry point. An arrow marks the current position of the program counter.  
We will now skip over the initialisation code and proceed to the main tutorial.  
Open the file called ‘resetprg.c’.  
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Place a breakpoint at the call to main();  
Breakpoints can be set by double clicking in the column containing the PC arrow next to the line to break at; or selecting the  
line and pressing F9; or right click on the line and select ‘Toggle breakpoint’. Alternatively set a eventpoint, by clicking in the  
column to the left of the breakpoint column. Only one eventpoint can be set. Eventpoints do not require programming the  
flash memory, and thus are faster to use.  
Press ‘Reset Go’ on the Debug Tool Bar.  
The code will execute to the breakpoint. At this point all the device initialisation will have been completed.  
Press ‘Step In’ on the Debug Tool Bar.  
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The code window will open ‘main.c’ and show the new position of the program counter.  
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Insert a breakpoint on the call to the ‘TimerADC’  
function.  
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Right click on the ‘FlashLEDs(); function and select  
‘Go to cursor’.  
The code will execute to the selected line and stop. An automatic breakpoint was inserted in the code and then removed after calling the  
break.  
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Press ‘Step Over’ on the Debug Tool Bar.  
The code will run and flash the LEDs 200 times. The debugger will not exit until all 200 flashes have completed or a button is pressed on the  
RSK.  
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If the LEDs are still flashing press the SW1 button on the RSK to exit the FlashLEDs() function.  
The code will run to the breakpoint we previously set on the TimerADC function.  
The TimerADC function initialises an interrupt on an available internal timer. On a compare match in the timer module an interrupt is  
generated. In the TimerADC code version the interrupt reads the last ADC conversion for the external potentiometer and uses the result to  
set the next compare match value. The ADC conversion is then re-started.  
The interrupt initialisation is completed as part of the hardware setup. This is contained in the file ‘interrupts.c’.  
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Open the file ‘interrupts.c’ by double clicking on the file in the workspace view.  
Review this file and find the interrupt function that changes the LED pins, INT_TimerZ1(void).  
Set a breakpoint on the line where the LED pins are modified.  
Press <Go> or <F5> to run the code from the  
current PC position.  
The code will stop in the interrupt routine. It is now possible to step through the interrupt function.  
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Remove the breakpoint in the interrupt by double clicking again before exiting the function.  
Press <Go>to run the code from the current PC  
position.  
The code will now run to the infinite loop at the end of Main. The user LEDs should now be flashing. You can modify the flashing rate by  
adjusting the potentiometer on the board.  
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Press <Stop> on the debug tool bar.  
Press ‘CTRL-B’ to open the breakpoint  
window.  
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Select ‘Remove All’  
Press <OK>.  
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Open the file ‘main.c’  
Insert a breakpoint on ‘Statics_Test();’.  
The statics test is used to demonstrate that the initialisation has successfully copied all initialised variables from storage in flash to RAM.  
Press <Reset Go> on the Debug Tool Bar.  
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The code will stop at the breakpoint. (Press a button to bypass the flashing LED test.)  
Press <Step In> on the Debug Tool Bar.  
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It is possible to monitor variables during debugging of the code. To set up a ‘watch’ on a variable place the mouse over the variable. If the  
variable is available in the current context a tool-tip will be displayed with the current value of the variable.  
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Hover the mouse over the ‘ucStr’ variable to see the tooltip value. Then Right click on the variable name and select ‘Instant  
Watch’.  
A dialog will open showing the variable and allowing further details to be explored.  
Press <Add>  
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The dialog will close and a new pane will open in the workspace containing the variable.  
It is possible to see that the string has been successfully initialised to ‘ STATIC ‘.  
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Set a breakpoint on the call to ‘DisplayString();’ inside the for loop.  
Press ‘Go’ to run the code from the current PC  
position.  
When the program stops you can see the modified string displayed on the second line of the LCD.  
Inspection of the watch pane will show that the first character of the variable string has been replaced with the first character of the constant  
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replacement string.  
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Remove the breakpoint  
Right click on the ‘DisplayString();’ function call after the loop and select ‘Go to cursor’.  
This shows that the variable was initialised at program start up and can be overwritten with ‘TESTTEST’.  
You have now run the tutorial code and used many of the common features of the debugger. We suggest that you review the rest of the  
tutorial code as many functions have important information on the operation of the code, the compiler directives and comments on when  
they should or must be used. Please refer to Chapter 7 for more information on the project files.  
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Chapter 7. Project Files  
7.1. Standard Project Files  
The RSK tutorials are configured so that it is possible to provide the same tutorial code on multiple RSK products. This allows the  
evaluation of the different processor cores using equivalent code. To achieve this, the following files are common between all device cores  
and Tool-chains.  
Each of the tutorial files has detailed comment text describing the function of each code entry. Please refer to the source code for greater  
detail on the purpose and operation of the compiler specific details.  
7.1.1. Initialisation code (resetprg.c / resetprg.h)  
This is the entry point of the main tutorial code.  
Initialisation of the variables used in the C compilers and initialisation of stack pointers are completed in the _INITSCT function for the H8  
and SH compilers. The call to ‘hardwaresetup()’ will initialise the device hardware and peripherals ready for the tutorial software.  
The call to ‘main()’ will start the main demonstration code.  
7.1.2. Board initialisation code (hwsetup.c / hwsetup.h)  
There are four common stages to the configuration of the microcontroller device. The code to demonstrate this is therefore split into four  
functions. Each function is written specifically for the device supported. The function calls are shown below.  
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7.1.3. Main tutorial code (main.c / main.h)  
The main tutorial code is common to all tutorial projects. The display initialisation and string display functions operate on the LCD display  
module. Check compatibility with ks0066u controller and pin connection on the schematic before connecting a LCD module not supplied by  
Renesas.  
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Chapter 8. Additional Information  
For details on how to use High-performance Embedded Workshop (HEW), refer to the HEW manual available on the CD or from the web  
site.  
Further information available for this product can be found on the Renesas website at:  
http://www.renesas.com/renesas_starter_kits  
General information on Renesas Microcontrollers can be found at the following website.  
Global:  
http://www.renesas.com/  
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Renesas Starter Kit for H8/36079  
Tutorial Manual  
Publication Date Rev.01.00 17.OCT.2007  
Published by:  
Renesas Technology Europe Ltd.  
Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, UK  
©2007 Renesas Technology Europe and Renesas Solutions Corp., All Rights Reserved.  
Download from Www.Somanuals.com. All Manuals Search And Download.  
 
Renesas Starter Kit for H8/36079  
Tutorial Manual  
Renesas Technology Europe Ltd.  
Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, UK  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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