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HET simulation problem using HET IDE

Jun Li3
Prodigy 20 points

Hello,

I'm using HET IDE to simulate my HET program, but I got a strange problem. I had set the lr to 4 and hr to 1 so there may be 4-one-cycle instructions per loop, but when I wrote 3 instructions(CNT, ECMP and BR) and tried to simulate it, I got a "Program Overflow" message, What is wrong?

Thanks.

  • 0
    TI__Mastermind 22375 points

    Jun,

    Your NHET program is using a max of 3 time slots to execute to full program.
    You should not see a program overflow.

    Can you send me your project so I can have a look?

    On my side I did a simulation with the same 3 instructions and I don't see the overflow.

    Also, can you tell me on which device you are running the simulation, and what is the version of the HET simulator you are using?

  • 0 in reply to Jean-Marc Mifsud
    Prodigy 20 points

    6153.test.rar

    Hi Jean-Marc,

    I'm using TMS470A1R288 which has HET feature, and the version of HET IDE is 3.3, the version of WaveViewer is 16.04f, in the IDE I use TMS470MF0XX07 instead of A1R288 because it does not support A1R288.

    Attached is my project, please take a look, thank you very much.

  • 0 in reply to Jun Li3
    TI__Mastermind 22375 points

    Jun,

    Thanks for sharing your code.

    This device is not recommended for new design, and is not supported on this forum.

    Anyway, I did try your code on the simulator and I have the same overflow.
    A way to fix this problem is to increase the number of time slot from 4 to 8. I did a test and it is working.

    The implementation of HET has been improved on newer product.
    HET is no more used and has been replaced by NHET and N2HET.
    I did a simulation with NHET and N2HET using your original code (and 4 TS) and it works.