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 iSYSTEM, October 2003 

 

3/8 

Getting started 

 

Setting up the board 

 
The MC9S12H256 Evaluation board has been tested and programmed with the demo application. 
Please examine the board and check that: 

• 

The LCD module and the crystal oscillator are installed. 

• 

All jumpers (J1-J17) are set. 

 

Standalone operation 

 

• 

Make sure that the CPU piggyback is installed. 

• 

Plug the DC source (e.g. AC wall adapter) to the P1 connector or apply DC source to the 
connector P2. 

• 

Turn on the power switch SW1 and check the green power LED LD1. 

• 

The board should execute a sample application. 

  

Use with MC9S12H256 ActivePOD 

 

• 

Remove the CPU piggyback from the board. 

• 

Connect the MC9S12H256 ActivePOD to the board. 

• 

Turn the emulator on and then power the target. 

• 

Run winIDEA, open a sample project and carry out the debug reset. The system is ready for 
debugging. 

 

Use with BDM debugger 

 

• 

Make sure that the CPU piggyback is installed. 

• 

Connect the 68HC(S)12 iCARD to a standard 6-pin BDM debug connector P7 

• 

Turn the emulator on and then power the target. 

• 

Run winIDEA, open a sample project and carry out the debug reset. The system is ready for 
debugging. 

 
Running winIDEA 

 

 
It’s assumed that winIDEA is installed on a PC, where iSYTEM development tool is connected.  
 
Contact your local iSYSTEM sales representative for a sample project or download it from: 
ftp://www.asystelectronic.si/winidea/samples/targets/itmc9s12h256.zip 
 
Start winIDEA application from the Start menu and open a sample project workspace. If you are using 
ActivePOD, open sampleICE.jrf workspace and if you are using BDM debugger, open sampleBDM.jrf 
workspace. Next, check if proper emulator hardware is selected and the communication between the 
PC and the emulator. 
Carry out the debug reset and run the application (debug run) in case of BDM debugger and carry out 
the debug download and run the application (debug run) in case of MC9S12H256 ActivePOD. 
Blinking red LEDs (LD2-LD9) and a “Welcome” title on the LCD display indicate a working system. 
Additionally, a test string is sent to the host RS232 terminal. 
 
There are four push buttons on the board designated SW1, SW2, RST and IRQ. RST resets the 
complete system. Make sure that ‘Reset from target’ option is checked in winIDEA when using RST 
button and the development system is connected to the board. IRQ turns on all LEDs. SW1 turns on 
one LED and shift its position to the left for each consecutive push. SW2 does the same except that it 
shifts in the opposite direction.  
Trimmer TR1 controls the LCD brightness. Use a mini-screwdriver to adjust it.  
Trimmers TR2 and TR3 are connected to the CPU A/D converter. TR2 is connected to the channel 0 
and TR3 to the channel 1. Refer to the board schematic for more details. 

Summary of Contents for MC9S12H256

Page 1: ..._ V1 0 User s Guide Motorola MC9S12H256 Evaluation Board iSYSTEM October 2003 1 8 Ordering code ITMC9S12H256 MC9S12H256 Evaluation Board MC9S12H256 CPU Piggyback ...

Page 2: ... CPU piggyback When BDM debugger is connected MC9S12H256 CPU piggyback must be connected to the target and a standard BDM port is provided for the development tool Features MC9S12H256 CPU LCD display 16 segments x 8 characters BDM debug connector RS232 port with DB9 F connector 8 MHz clock oscillator 16 MHz max 3 expansion connectors Regulated 5 V power supply ON OFF switch 3 1 push buttons 8 1 LE...

Page 3: ...EM sales representative for a sample project or download it from ftp www asystelectronic si winidea samples targets itmc9s12h256 zip Start winIDEA application from the Start menu and open a sample project workspace If you are using ActivePOD open sampleICE jrf workspace and if you are using BDM debugger open sampleBDM jrf workspace Next check if proper emulator hardware is selected and the communi...

Page 4: ...First switch off the target and then the emulator Jumpers All CPU peripheral signals used on the board can be disconnected from the CPU via jumpers By removing the jumper the belonging signal is freed for the user Note that all CPU signals are available on the expansion connectors and can be used by the user Jumper DESCRIPTION J1 Enable AN0 Analog input 0 J2 Enable AN1 Analog input 1 J3 Enable PS1...

Page 5: ...C NC COM4 3 2D 2E 2F 2S 21 8DP 8C 8B 8A 4 2J 2I 2H 2G 22 8K 8L 8M 8N 5 3D 3E 3F 3S 23 7DP 7C 7B 7A 6 3J 3I 3H 3G 24 7K 7L 7M 7N 7 4D 4E 4F 4S 25 6DP 6C 6B 6A 8 4J 4I 4H 4G 26 6K 6L 6M 6N 9 5D 5E 5F 5S 27 5DP 5C 5B 5A 10 5J 5I 5H 5G 28 5K 5L 5M 5N 11 6D 6E 6F 6S 29 4DP 4C 4B 4A 12 6J 6I 6H 6G 30 4K 4L 4M 4N 13 7D 7E 7F 7S 31 3DP 3C 3B 3A 14 7J 7I 7H 7G 32 3K 3L 3M 3N 15 8D 8E 8F 8S 33 2DP 2C 2B 2A ...

Page 6: ...15 16 AN4 PJ2 15 16 PJ3 PV7 17 18 PV6 AN11 17 18 AN3 PJ0 17 18 PJ1 PH5 19 20 PH4 AN10 19 20 AN2 VDD 19 20 GND PH7 21 22 PH6 AN9 21 22 AN1 FP22 21 22 FP23 PW1 23 24 PW0 AN8 23 24 AN0 FP20 23 24 FP21 PW3 25 26 PW2 VDD 25 26 VDD FP30 25 26 FP31 GND 27 28 VDD GND 27 28 GND FP28 27 28 FP29 PW5 29 30 PW4 PE6 29 30 PE0 FP18 29 30 FP19 RST 31 32 BKGD VDDPLL 31 32 PE4 FP16 31 32 FP17 GND 33 34 VDD GND 33 3...

Page 7: ... iSYSTEM October 2003 7 8 Schematic ...

Page 8: ... iSYSTEM October 2003 8 8 This page left blank intentionally ...

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