STK502
..............................................................................................
User Guide
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Table of Contents
Introduction...........................................................................................1-1
2.2 PORT Connectors.....................................................................................2-2
2.2.1 PORT E/PORT F................................................................................2-2
2.2.2 PORT G/RST......................................................................................2-2
2.4 JTAG Connector .......................................................................................2-6
2.5 LCD Display ..............................................................................................2-7
2.6 TOSC Switch...........................................................................................2-10
2.7.1 Sensor Switches...............................................................................2-11
4.1 STK502 LCD Bit Mappings .......................................................................4-3
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Table of Contents
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Section 1
Introduction
The STK502 board is a top module designed to add ATmega169 support to the STK500
development board from Atmel Corporation.
STK502 includes connectors and hardware allowing full utilization of the new features of
the ATmega169. The Zero Insertion Force (ZIF) socket makes it easy to use of TQFP
packages for prototyping.
This user guide is a general getting started guide as well as a complete technical refer-
ence for advanced users.
The STK502 board also includes a demonstration application, and comes with two
application notes, “AVR064: STK502 – A Temperature Monitoring System with LCD
Output” and “AVR065: LCD Driver for the STK502”. These application notes explain
how to use the different modules in the device. Included in the kit is a pre-programmed
ATmega169. Insert the device in the ZIF socket and the demonstration application will
start immediately.
Figure 1-1. STK502 Top Module for STK500
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Introduction
1.1
Features
ꢀ Supports the ATmega169 with Built-in LCD Controller.
ꢀ LCD-on-glass Display for Demonstrating the ATmega169 LCD Controller.
ꢀ Supported by AVR Studio® 4.
ꢀ Zero Insertion Force Socket for TQFP Packages.
ꢀ High Voltage Parallel Programming.
ꢀ Serial Programming.
ꢀ TQFP Footprint for Emulator Adapters.
ꢀ Port Extension Connectors for Port E, F, and G.
ꢀ LCD Display Header for Using an External LCD Display.
ꢀ LCD and Other Peripherals Can be Disconnected from the Device.
ꢀ JTAG Connector for On-chip Debugging Using JTAG ICE.
ꢀ On-board 32 kHz Crystal for Easy Real Time Clock Implementations.
ꢀ Temperature Sensor for the Demo Application.
ꢀ Quick Reference to all Switches and Jumpers in the Silk-Screen of the PCB.
ꢀ Pre-programmed ATmega169 with Demonstration Application. Includes C-code
Examples for all Major Peripherals on the ATmega169 Device.
– The Way to Get Going with your ATmega169
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Section 2
Using the STK502 Top Module
This section describes in detail how the STK502 is used with the STK500.
2.1
Connecting the
STK502 to the
STK500 Starter
Kit
Connect STK502 to the STK500 expansion header 0 and 1. It is important that the top
on the STK502 top module should match EXPAND0 written beside the expansion
header on the STK500 board.
Figure 2-1. Connecting STK502 to the STK500 Board
Note: Connecting STK502 with wrong orientation may damage the board.
2.1.1
Placing an
ATmega169 on
STK502
STK502 contains both a ZIF socket, and a footprint for a TQFP package which allows an
easy way of soldering an emulator adapter directly into the STK502. Care should be
taken so that the device (or adapter) is mounted with the correct orientation. Figure 2-2
shows the location of pin1 for the ZIF socket and the TQFP footprint.
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Figure 2-2. Pin1 on ZIF Socket and TQFP Footprint
Caution: Do not mount an ATmega169 on the STK502 at the same time as an AVR is
mounted on the STK500 board. Neither of the devices will work as intended.
2.2
PORT
Connectors
ATmega169 have additional ports to those available on the STK500. The ports are
located on the STK502 board. They have the same pin out and functionality as the ports
on the STK500 board. Port A to Port D are already present on the STK500 board. They
are not duplicated on the STK502.
2.2.1
PORT E/PORT F
Figure 2-3 shows the pin out for the I/O port headers Port E and Port F.
Figure 2-3. General I/O Ports
1
2
1
2
PE0
PE2
PE4
PE6
GND
PE1
PE3
PE5
PE7
VTG
PF0
PF2
PF4
PF6
GND
PF1
PF3
PF5
PF7
VTG
PORTE
PORTF
Note: Port E is also present on the STK500, but only PE0 to PE2 (three least signifi-
cant bits) are accessible there. To access all Port E bits the connector on the
STK502 must be used.
2.2.2
PORT G/RST
In addition to the normal Port G pins, this connector has the RESET-signal. Se Figure 2-
2-2
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Figure 2-4. PORTG/RST
1
2
PG0
PG2
PG4
NC
PG1
PG3
PG5
RST
VTG
GND
PORTG/RST
2.2.2.1 PG0 - PG5
2.2.2.2 RST
These are general I/O ports connected to ZIF socket and the TQFP footprint.
On the ATmega169 the RESET-signal and PG5 share the same pin. The “RST” is the
RESET-signal that comes from the STK500 board. Please note that it is not directly con-
nected to the ZIF socket or the TQFP footprint on the STK502. This because the
RESET-signal on the STK500 has an pull-up resistor to VCCT which will interfere with
PG5 when used as an ordinary I/O-pin.
ꢀ If RESET/PG5-pin on ATmega169 shall be used as a Reset pin, the RST and PG5 on
ꢀ If the pin shall be used as an I/O-pin the jumper must be removed.
Figure 2-5. The RESET Signal on PORTG/RST
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2.3
Programmingthe The ATmega169 can be programmed using both SPI and High-voltage Parallel Pro-
gramming. This section will explain how to connect the programming cables to
successfully use one of these two modes. The AVR Studio STK500 software is used in
the same way as for other AVR parts as described in the STK500 User Guide.
ATmega169
Note: The ATmega169 also support Self Programming, See AVR109 application note
for more information on this topic.
Note: The jumper for the Reset-signal on PORTG/RST must be mounted before any
programming can take place. See Section 2.2.2.2
2.3.1
In-System
Figure 2-6. In-System Programming
Programming
To program the ATmega169 using ISP Programming mode, connect the 6-wire cable
between the ISP6PIN connector on the STK500 board and the ISP connector on the
Programming mode in the AVR Studio4 STK500 software.
Note: See STK500 User Guide for information on how to use the STK500 front-end
software for ISP Programming.
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2.3.2
High-voltage
Programming
Figure 2-7. High-voltage (Parallel) Programming
To program the ATmega169 using High-voltage (Parallel) Programming, connect the
PROGCTRL to PORTD and PROGDATA to PORTB on the STK500 as shown in Figure
As described in the STK500 User Guide (jumper settings), mount the BSEL2 jumper in
order to High-voltage Program the ATmega devices. This setting also applies to High-
voltage Programming of the ATmega169.
The device can now be programmed using the High-voltage Programming mode in AVR
Studio STK500 software.
Note: See the STK500 User Guide for information on how to use the STK500 front-
end software in High-voltage Programming mode.
Note: For the High-voltage Programming mode to function correctly, the target voltage
must be higher than 4.5V.
Caution: Make sure to disconnect LCD-display from the segment pins header. Other-
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2.4
Figure 2-8. Connecting JTAG ICE to the STK502
The JTAG connector is used for the ATmega169 built-in JTAG interface. The pin out of
available from Atmel. Connecting a JTAG ICE to this connector allows On-chip Debug-
ging of the ATmega169.
More information about the JTAG ICE and On-chip Debugging can be found in the AVR
Figure 2-9. JTAG Connector
1
2
TCK
TDO
TMS
VTG
TDI
GND
VTG
RST
NC
GND
JTAG
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Using the STK502 Top Module
2.5
LCD Display
STK502 includes a LCD display. It features six 14-segments digits, and some additional
segments. All in all the display supports 120 segments. The display is designed for 3V
operating voltage. See the Technical Specifications for more details on the display.
2.5.1
Connecting the
STK502 LCD to the
ATmega169
The segment-pins from the ATmega169 are located at PORTA, PORTC, PORTD, and
PORTG. For simplicity in use they are all joined together on the header labeled “Seg-
ment pins from ATmega169”. The header next to it, labelled “STK502 LCD pins” holds
all the segments-pins for the LCD-display on the STK502.
By using the 34-lead cable that comes with the STK502-kit, the two pin-headers can be
Figure 2-10. Connecting the ATmega169 to the STK502 LCD
Caution: High-voltage Programming uses PORTB and PORTD. Be sure to disconnect
any LCD-display connected to the ATmega169 during the High-voltage Programming.
Otherwise the lifetime of the display may be reduced.
Caution: When using PORTA, PORTC, PORTD, or PORTG as regular I/O ports, the
corresponding LCD-segment pins must be disconnected from the ATmega169.
2.5.2
Default Segment
Configuration
ATmega169 supports 100 segments. Thus not all of the 120 segments on the LCD-dis-
play can be shown simultaneously. Five of the 30 segment-pins on the LCD display has
to be left unconnected. The LCD-pins that are not connected are pin #: 3, 24, 30, 31,
and 32. See Technical Specifications for an overview of the excluded segments.
In order to use some of the segments on the LCD display that by default are not
included or in order to use some of the segment pins as ordinary I/O-pins, use a custom
strap between the two 34-pin headers. These to headers are lined up so they will fit in to
a 2.54 mm pitch grid for easy connecting, e.g., a experiment board on top of them.
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Figure 2-11. Pin out for LCD Headers
1
2
1
2
SEG01
SEG03
SEG05
SEG07
SEG09
SEG11
SEG13
SEG15
SEG17
SEG19
SEG21
SEG23
SEG25
NC
SEG02
SEG04
SEG06
SEG08
SEG10
SEG12
SEG14
SEG16
SEG18
SEG20
SEG22
SEG24
NC
LCD27
LCD29
LCD06
LCD26
LCD08
LCD23
LCD10
LCD21
LCD14
LCD11
LCD18
LCD15
LCD19
LCD24
LCD31
BP1
LCD28
LCD04
LCD25
LCD05
LCD22
LCD07
LCD20
LCD09
LCD12
LCD13
LCD16
LCD17
LCD03
LCD30
LCD32
BP2
NC
NC
NC
COM00
COM02
COM01
COM03
BP4
BP3
Seg. M169
LCD Pins
This hardware configuration will give a certain bit-mapping between the bits in the
ATmega169 LCDDRx Register and the segments on the STK502 LCD. See Section 4.1
“STK502 LCD Bit Mappings”
2.5.3
Using Both Colons
on the Display
With the header J300 labelled “19 24” one can connect LCD-pin 24 (which is default
unconnected) to LCD-pin 19 by the use of a jumper. See Figure 2-12. The reason for
doing so is that the LCD-pin 24 has the segment “COL1” and LCD-pin 19 has “COL2”. In
applications where a clock, date etc. shall be displayed, it can be useful to control both
colons on the LCD-display. But connecting these LCD-pins will also lead to a connection
between segment (see Technical Specifications) “S5” and “3”, “S8” and “S7”, “8” and
“7”, which will in practice make them useless. See Figure 2-13 showing which seg-
ments are available on the LCD-display with the default segment configuration.
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Figure 2-12. Jumper to connect COL1 to COL2
Figure 2-13. Default LCD-segment configuration, with and without the jumper shown in
Figure 2-12
Other LCD-displays can be connected to the ATmega169, either through the header
“Segment pins from ATmega169” where all the segment pins are gathered or through
the ordinary Port-connectors PORTA, PORTC, PORTD, and PORTG.
Note: Make sure the display is compatible with the electrical characteristics on the
ATmega169.
For more information on how to write software for the LCD-display see application note
“AVR064: STK502 – A Temperature Monitoring System with LCD Output” and applica-
tion note “AVR065: LCD Driver for the STK502 LCD”.
Note: The LCD-display on the STK502 can be ordered separately from ACTE Norway
(www.acte.no).
Phone: +47 63 89 89 00
Fax: +47 63 87 90 00
E-mail: [email protected]
Price: NOK 99,-
Ordering number: H4042-DL DE5156/L.
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2.6
TOSC Switch
Figure 2-14. TOSC Switch
On the ATmega169 the TOSC1 and TOSC2 lines are shared with XTAL1 and XTAL2.
The TOSC switch selects whether the 32 kHz crystal on the STK502, or the XT1/XT2
signals from STK500 should be connected to these pins on the device.
Figure 2-15 shows a simplified block schematic on how this is implemented.
Figure 2-15. TOSC Block Schematic
32 kHz
AVR
XTAL1/TOSC1
XT1
To
STK500
XTAL2/TOSC2
XT2
TOSC
Switch
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2.7
Sensor
Figure 2-16. NTC-thermistor
STK502 includes a two screw-terminal block where a sensor can be connected. The
STK502 kit is shipped with a NTC-thermistor attached to this screw-terminal. A NTC-
thermistor is characterised by the fact that when the temperature goes down the resis-
tance goes up. Using a voltage divider and reading the voltage over the thermistor
through the ADC-channels on ATmega169, the temperature can be calculated. Applica-
tion note “AVR064: STK502 – A Temperature Monitoring System with LCD Output”
describes the details of the application.
2.7.1
Sensor Switches
Two switches on the STK502 are used to connect the sensor to the ADC-channels on
Figure 2-17. Temperature sensor switches
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2.7.1.1 AREF Switch
The switch named AREF selects the input to the AREF-pin on the ATmega169.
Figure 2-18. AREF Switch
AVR
From
AREF
STK500
AREF
VREF
STK502
STK502
Voltage refernce
for the sensor
AREF
Switch
Positions:
ꢀ AREF: In this position the AREF from the STK500 is connected to the AREF pin on
the ATmega169. This is the default position.
ꢀ VREF: In this position the VREF from the 1.263V voltage reference on the STK502 is
connected to the AREF pin on the ATmega169. Select this position in order to run the
code in Application Note “AVR064: STK502 – A Temperature Monitoring System with
LCD Output”
2.7.1.2 PF[1:0] Switch
The PF[1:0] switch selects the input to the PF1 and PF0 pins (ADC channel 1/0) on the
ATmega169.
Figure 2-19. PF[1:0] Switch
AVR
PORTF0
PF0 (ADC0)
Sensor
pin 1
PORTF1
PF1 (ADC1)
Sensor
pin 2
PF[1:0]
Switch
Positions:
ꢀ PIN: In this position the PF0 and PF1 are from the PORTF on the STK502 are
connected to the PF0 and PF1 on the ATmega169. Default position.
ꢀ Sensor: In this position the pin 1 from the screw-terminal on the STK502 are
connected to PF0 on the ATmega169, and the pin 2 from the screw-terminal are
connected to PF1 on the ATmega169. Select this position in order to run the code in
Application Note “AVR064: STK502 – A Temperature Monitoring System with LCD
output”
In the sensor position both PF0 and PF1 are connected to the senor pins, regardless of
using single ended or differential ADC-measurements in the application. This means
that it's not possible to use PF1 as an ordinary I/O-port even though only PF0 (single
ended) is used with the ADC.
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Section 3
Troubleshooting Guide
Table 3-1. Troubleshooting Guide
Problem
Reason
Solution
The LCD is not connected.
Attach the 34-pins cable between
the to 34-pins headers on the
STK502.
Nothing is displayed on
the LCD.
The LCD is not enabled in
the AVR device.
The update frequency is
not correct.
Verify that the clock prescaling
The PORTA/C/D and/or G
are connected to
something else than the
LCD display.
Check that nothing is connected to
these PORTS on the STK500 and
STK502.
Some segments on the
LCD seems to be stuck
at high/low.
Can’t control
PORTF[1:0]
PF[1:0] is not connected to
the ATmega169.
Set the PF[1:0] switch in the PIN-
position.
ISP cable not connected.
Connect the ISP cable according to
STK500 target voltage
error.
Please refer to the ATmega169
datasheet for the Serial
Programming Voltage limits. Adjust
the target voltage on the STK500
board accordingly.
Serial Programming
does not work
The RSTDISBL Fuse is
programmed.
Use Parallel Programming to
unprogram the RSTDISBL Fuse.
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Troubleshooting Guide
Table 3-1. Troubleshooting Guide
Problem
Reason
Solution
Cables not connected
properly.
correct Parallel Programming setup.
STK500 target voltage
error.
Please refer to the ATmega169 data
sheet for the Parallel Programming
Voltage limits. Adjust the target
voltage on the STK500 board
accordingly.
Parallel Programming
does not work.
The TOSC switch is not
correctly set.
Set the TOSC switch in the XTAL-
position.
The RESET-signal is not
connected to the
ATmega169.
Connect PG5 and RST with a
jumper. See Section 2.2.2.2 RST.
No programming works.
Note:
1. See the application note “AVR065: LCD Driver for the STK502 LCD” on how to con-
trol the LCD-display or the the application note “AVR064: STK502 – A Temperature
Monitoring System with LCD Output”.
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Section 4v
Technical Specifications
System Unit
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 x 119 x 27 mm
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 g
Operating Conditions
Voltage Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1,8V - 5,5V
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C - 50°C
LCD-display
Operation voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3V
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Technical Specifications
4.1
STK502 LCD Bit
Mappings
The LCD Data Registers (LCDDRx) in the ATmega169 are organized in groups accord-
ing to the use of Backplane Control Lines (also known as Common Lines). The LCD on
the STK502 uses all four Common Lines and all 25 segments, in total 4 x 25 = 100 seg-
connection of pins, Common Lines and segments, the alphanumeric digits are referred
to with a number according to where they are located on the LCD. Listed below is a
description of the STK502 bit mappings according to this.
4.1.1
Alphanumeric Digit
Number Two
The bit mappings for the alphanumeric digit number two are listed below.
Table 4-1. Bit Mappings for LCD Alphanumeric Digit Number Two
Register Name
LCDDR0
Bit7
Bit6
Bit5
Bit4
Bit3
2-K
2-J
Bit2
1
Bit1
S1
Bit0
2-A
2-B
2-C
2-D
LCDDR5
2-F
2-E
2-P
2-H
2-G
2-N
LCDDR10
LCDDR15
2-L
2-M
4.1.2
4.1.3
4.1.4
Alphanumeric Digit
Number Three
The bit mappings for the alphanumeric digit number three are listed below.
Table 4-2. Bit Mappings for LCD Alphanumeric Digit Number Three
Register Name
LCDDR0
Bit7
3-K
3-J
Bit6
2
Bit5
S2
Bit4
3-A
3-B
3-C
3-D
Bit3
Bit2
Bit1
Bit0
LCDDR5
3-F
3-E
3-P
3-H
3-G
3-N
LCDDR10
LCDDR15
3-L
3-M
Alphanumeric Digit
Number Four
The bit mappings for the alphanumeric digit number four are listed below.
Table 4-3. Bit Mappings for LCD Alphanumeric Digit Number Four
Register Name
LCDDR1
Bit7
Bit6
Bit5
Bit4
Bit3
4-K
4-J
Bit2
S3
Bit1
4
Bit0
4-A
4-B
4-C
4-D
LCDDR6
4-F
4-E
4-P
4-H
4-G
4-N
LCDDR11
LCDDR16
4-L
4-M
Alphanumeric Digit
Number Five
The bit mappings for the alphanumeric digit number five are listed below.
Table 4-4. Bit Mappings for LCD Alphanumeric Digit Numer Five
Register Name
LCDDR1
Bit7
5-K
5-J
Bit6
S4
Bit5
5
Bit4
5-A
5-B
5-C
5-D
Bit3
Bit2
Bit1
Bit0
LCDDR6
5-F
5-E
5-P
5-H
5-G
5-N
LCDDR11
LCDDR16
5-L
5-M
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Technical Specifications
4.1.5 Alphanumeric Digit
The bit mappings for the alphanumeric digit number six are listed below.
Number Six
Table 4-5. Bit Mappings for LCD Alphanumeric Digit Number Six
Register Name
LCDDR2
Bit7
Bit6
Bit5
Bit4
Bit3
6-K
6-J
Bit2
9
Bit1
S9
Bit0
6-A
6-B
6-C
6-D
LCDDR7
6-F
6-E
6-P
6-H
6-G
6-N
LCDDR12
LCDDR17
6-L
6-M
4.1.6
Alphanumeric Digit
Number Seven
The bit mappings for the alphanumeric digit number seven are listed below.
Table 4-6. Bit Mappings for LCD Alphanumeric Digit Number Seven
Register Name
LCDDR2
Bit7
7-K
7-J
Bit6
10
Bit5
S10
7-H
7-G
7-N
Bit4
7-A
7-B
7-C
7-D
Bit3
Bit2
Bit1
Bit0
LCDDR7
7-F
7-E
7-P
LCDDR12
LCDDR17
7-L
7-M
4-4
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Section 5
Technical Support
For Technical support, please contact [email protected]. When requesting technical sup-
port, please include the following information:
ꢀ Which target AVR device is used (complete part number).
ꢀ Target voltage and speed.
ꢀ Clock source and fuse setting of the AVR.
ꢀ Programming method (ISP or High-voltage).
ꢀ Hardware revisions of the AVR tools, found on the PCB.
ꢀ Version number of AVR Studio. This can be found in the AVR Studio help menu.
ꢀ PC operating system and version/build.
ꢀ PC processor type and speed.
ꢀ A detailed description of the problem.
STK502 User Guide
5-1
Rev. 2528A–AVR–11/02
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Technical Support
5-2
STK502 User Guide
2528A–AVR–11/02
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Complete Schematics
Figure 6-1. Schematics, 1 of 3
2
1
0
P A T
P A T
P A T
4 9
5 0
5 1
5 2
5 3
5 4
5 5
5 6
5 7
5 8
5 9
6 0
6 1
6 2
6 3
6 4
3 2
3 1
3 0
2 9
2 8
2 7
2 6
2 5
2 4
2 3
2 2
2 1
2 0
1 9
1 8
1 7
7
6
5
4
3
2
1
0
P D T
P D T
P D T
P D T
P D T
P D T
P D T
P D T
7
6
5
4
3
2
P F T
P F T
P F T
P F T
P F T
P F T
1
0
A D C
A D C
5
4
3
P G T
P G T
P G T
1
2
1
2
1
1
2
2
( C O M 2 ) P A 2
( C O M 1 ) P A 1
( C O M 0 ) P A 0
P D 7 ( S E G 1 5 )
2
1
0
P A T
P A T
P A T
4 9
3 2
P D 6 ( S E G 1 6 )
3 1
7
6
5
4
3
2
P D T
5 0
5 1
5 2
5 3
5 4
5 5
5 6
5 7
5 8
5 9
6 0
6 1
6 2
6 3
6 4
P D T
P D T
P D T
P D T
P D T
P D T
P D T
1
1
1
1
2
2
2
2
P D 5 ( S E G 1 7 )
3 0
V C C
G N D
P D 4 ( S E G 1 8 )
2 9
P D 3 ( S E G 1 9 )
2 8
( T D I / A D C 7 ) P F 7
P D 2 ( S E G 2 0 )
2 7
7
P F T
P F T
P F T
P F T
P F T
P F T
( T D O / A D C 6 ) P F 6
( T M S / A D C 5 ) P F 5
( T C K / A D C 4 ) P F 4
P D 1 ( I N T 0 / S E G 2 1 )
6
5
4
3
2
2 6
1
0
P D 0 ( I C P / S E G 2 2 )
2 5
X T A L 1 ( T O S C 1 )
2 4
( A D C 3 ) P F 3
X T A L 2 ( T O S C 2 )
2 3
2 2
( A D C 2 ) P F 2
( A D C 1 ) P F 1
( A D C 0 ) P F 0
G N D
V C C
1
0
A D C
A D C
2 1
P G 5 ( R E S E T )
2 0
5
4
3
P G T
P G T
P G T
A R E F
A G N D
A V C C
P G 4 ( T 0 / S E G 2 3 )
1 9
P G 3 ( T 1 / S E G 2 4 )
1 8
P B 7 ( O C 2 )
1 7
1
2
2
1
6-2
STK502 User Guide
2528A–AVR–11/02
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Complete Schematics
Figure 6-2. Schematics, 2 of 3
1
2
1
2
2 T P B
3 T P B
1 T P B
2
1
1
2
2
1
N O T M O U N T E D
1
2
STK502 User Guide
6-3
2528A–AVR–11/02
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Complete Schematics
Figure 6-3. Schematics, 3 of 3
7
2
1
7
7
1
2
1
2
1
2
1
2
O U T
G N D
I N
2
1
3
1
2
6-4
STK502 User Guide
2528A–AVR–11/02
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Complete Schematics
Figure 6-4. Assembly Drawing, 1 of 1
STK502 User Guide
6-5
2528A–AVR–11/02
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Complete Schematics
6-6
STK502 User Guide
2528A–AVR–11/02
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Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty
which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors
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