RTOS/66AK2H12: K2H Arm timer period does not work with Timer_PeriodType_MICROSECS

Part Number:66AK2H12

Tool/software:TI-RTOS

Hi,

When I configure a SYS/BIOS timer to run on an ARM core in the K2H, the Timer_PeriodType_MICROSECS method does not work.

    Timer_Params timerParams;
    Timer_Params_init (&timerParams);
    timerParams.period = 1000000;       // 1 sec period
    timerParams.periodType = Timer_PeriodType_MICROSECS;
    timerParams.runMode = Timer_RunMode_CONTINUOUS;
    timerParams.startMode = Timer_StartMode_USER;
    oneSecTimer = Timer_create(Timer_ANY, (Timer_FuncPtr)timerTickFxn, &timerParams, &eb);

This doesn't produce a 1 sec period, but one that is much faster. Instead, I have to use a value of 16384000 and type Timer_PeriodType_COUNTS to make it work.

    timerParams.period = 163840000; // 1 sec = 163840000 ticks
    timerParams.periodType = Timer_PeriodType_COUNTS;
    oneSecTimer = Timer_create(Timer_ANY, (Timer_FuncPtr)timerTickFxn, &timerParams, &eb);

The above does work, and produces a 1 sec tick.

When programming a C66x core, I specified the BIOS.cpuFreq value in the cfg file to get the Timer_PeriodType_MICROSECS type to work. But that doesn't seem to work for the ARM core.

Thanks,
Bruce