Subversion Repositories RISCMCU

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AVR Assember
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Click on 'Options...' Menu
1. Select 'Generic Format' under the Output file format (MUST for HEX2MIF to work!)
2. Check the 'Save before assemble' box.

calc.asm        Simple Calculator Source Code
memgame.asm     Simple Memory Game Source Code
riscmcu.inc     Include File for *.ASM (I/O register and bit definition for this design)

With an ASM file and the riscmcu.inc file, AVR Assembler generates

*.hex           Hex file : used by HEX2MIF
*.lst           Listing file
*.obj           Object file : used by AVR Studio for simulation


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AVR Studio
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Open the OBJ file, set

Prog.Memory             512
Data Memory             256* 
EEPROM                  0                
I/O Size                64
Hardware Stack          check
Levels                  4
Map I/O in Data Area    check
Frequency               any

You can go to Simulator Options (under Options menu) to set this anytime.

Then press
ALT-0   Registers View
ALT-4   New Memory View
ALT-5   New I/O View, choose riscmcu.aio**

* The design only have 128 bytes of data RAM, but the simulator can not display the 128 locations when I put 128. 256 works, just ignored anything after the valid 128 byes.
** External interrupt can not be simulated because the design mapped the external interrupt pin to D7 but the simulator map it to pin D2 (according to AT90S1200).


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HEX2MIF
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calc.mif        Simple Calculator MIF file
game.mif        Simple Memory Game MIF file

Both generated from the hex file by HEX2MIF to 'program.mif', then I rename it to reflect its application