TMS320F280049: CCP + Digital output holding high

Celso,

I believe there is a way to view the C code that Embedded Coder generates for the above logic blocks. If you could select this option and post the C code we can take a look at it to better understand how the logic switch has been implemented in SW/HW on the C2000.

Best,
Matthew

Hi Matthew,

Here's the GPIO bit:

    /* S-Function (c280xgpio_do): '<S122>/Digital Output GPIO7' */
    {
      if (HOP_Doh_Do5_bool)
        GpioDataRegs.GPASET.bit.GPIO7 = 1;
      else
        GpioDataRegs.GPACLEAR.bit.GPIO7 = 1;
    }

    /* SignalConversion: '<S122>/Signal Conversion3' */
    HOP_Doh_Do3_bool = CcuBrd_f28004x_ert_B.OPP_HeartBeat_bool_f;

    /* S-Function (c280xgpio_do): '<S122>/Digital Output GPIO9' */
    {
      if (HOP_Doh_Do3_bool)
        GpioDataRegs.GPASET.bit.GPIO9 = 1;
      else
        GpioDataRegs.GPACLEAR.bit.GPIO9 = 1;
    }

And here is the heartbeat bit:

    if (OPPc_HeartBeat_bool_OvrEn_bool) {
      OPP_HeartBeat_bool = OPPc_HeartBeat_bool_OvrVal_bool;
    } else {
      OPP_HeartBeat_bool = OPP_HeartBeat_Pre_bool;
    }

these look fine to me.

I don't believe it's the generated code as I've said before the heartbeat is cycling and the output works fine, ON and OFF, as soon as I override it, then it stops working.

It's like I cannot clear OPPc_HeartBeat_bool_OvrEn_bool even though the calibration tool tells me it is clear.

I'll ping the MW team to take a look at this in parallel; would you be able to see where OPP_HeartBeat_Pre_bool is set?

Best,
Matthew

Hi Matthew,

I can't pin down the exact extract of code as this goes through a few delays and data type conversions but previous to the override, all works as expected. The following picture shows this, I changed OPPc_HeartBeat_bool_OvrEn_bool to 1 and then back to 0, you can see the "Pre" continues oscillating (green) while the "Not Pre" (red) stops when OPPc_HeartBeat_bool_OvrEn_bool is true, but it doesn't resume when OPPc_HeartBeat_bool_OvrEn_bool is false: