Subversion Repositories RISCMCU

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FILES

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readme.txt              This file

simple_calculator.asm   A simple calculator program which I use to test RISCMCU

memory_game.asm         A simple memory game which I use to test RISCMCU

riscmcu.inc             AVR Assembler include file for this RISCMCU

riscmcu.aio             AVR Studio I/O View setting file for RISCMCU

counter.asm             Simulation DEMO program for RISCMCU, which is

                          the program contains in program.mif in the vhdl directory

                          and the program the MCU run in the simulation waveform (simulation directory)

counter.lst             List file for counter.asm

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AVR Assember 1.30

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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.

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 3.0

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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.