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Does CPU Cycle Accurate Simulator support DSP/BIOS?

arthur14426
Intellectual 420 points
Other Parts Discussed in Thread: CCSTUDIO

Hello , all

I have a question about DSP/BIOS and simulator. ( R&D enviroment is CCS 3.3  + CCS_v3.3_SR11_81.6.2.exe  + DSP/BIOS 5.41 + cgtools 6.1.13 )

   I use DSP/BIOS sample ( in C:\CCStudio_v3.3\bios_5_41_03_17\packages\ti\bios\examples\basic\clk\evmDM6446  ) , and setup a 64x+ CPU Cycle Accurate Simulator , then change the RTDX to simulator mode. After compiling and load .out file , I run the program . However program stop at TSK_sleep(...) , the debug window show the instruction ( RTDX$$MSG: ) . When I continue , the code after TSK_sleep(...) are never executed. But when I setup DM6446 Cycle Accurate Simulator, the result is OK . Can any one tell me why this case happened?

I create a none-BIOS project and test the timer0(0x01C21400) and timer1(0x01C21800) under CPU Cycle Accurate Simulator , the timers run correctly .

 

 

  • 0
    TI__Guru* 84110 points

    What is the "..." that you provide to TSK_sleep? If it is a big number, it may just be taking a long time to reach that timeout value on the simulator.

    If you comment out that line, does everything work okay? Or if you try a smaller number for the TSK_sleep argument?

    Yes, DSP/BIOS works with the simulator, as long as any peripherals you use through DSP/BIOS are implemented. Since you verified the timers, there is probably nothing else inherent in DSP/BIOS that would prevent proper operation.

  • 0 in reply to RandyP
    Intellectual 420 points

    RandyP,

    ... means some number I tried. Usually I use TSK_sleep((LgUns)1  to replace TSK_sleep((LgUns)timeout) in clk.c

    After running ,the program always stop at  "RTDX$$MSG" , (see the followed picture)

    and press F5 to continue , But nothing executed after TSK_sleep();(see the LOG window in the followed picture  )

     

    ========================================

    0   clk example started.

    1   The time in task is: 0 ticks
    2   task going to sleep for 10 ticks...

  • 0 in reply to arthur14426
    TI__Mastermind 24340 points

    Hi arthur,

    some of the CPU simulators have an issue with TSK_sleep indeed (being investigated), you can try using another one for the C64+ core and check the results.

  • 0 in reply to Mariana
    Intellectual 420 points

    Hi Mariana  , thank u very much. DM6446 Cycle Accurate Simulator works OK.