TMS320F28388D: CM timer interrupts used by SYS/BIOS

It's configurable--if you look at the Clock and Timer module settings, you'll see a "Timer Id" field that lets you choose.

If you haven't seen it already, the API documentation for SYS/BIOS can be found here.

Whitney

Hi Whitney,

So a "Timer id" field value of 0/1/2 refers directly to the CM's TIMER0/1/2 peripherals and their interrupts?

In the API documentation there's a link to the 'Delegate mappings' that describe the target Timer implementation: Supported Texas Instruments Devices and their proxies.

For the TMS320F2838X, both Clock and Timer modules refer to the ti.sysbios.family.arm.m3.Timer module. There it says "The Cortex M3 Timer Manager utilizes the M3's internal NVIC SysTick Timer". It implies that the SysTick timer interrupt is the only timer peripheral that is used for Clock and Timer functions.
Or is the SysTick timer only used for the periodic system tick (for Clock functions), and are Timer0/1/2 used for the Timer functions? So I should set Timer_NUM_TIMER_DEVICES to 3 in that case?

Thanks,
Arjan

That's strange. I would have expected that it would use 'ti.sysbios.family.arm.f2838x.Timer' for Timer. You might still be able to use it by putting it in the cfgScript directly. Something like:

var TimerF2838x = xdc.useModule('ti.sysbios.family.arm.f2838x.Timer');

var timer38xParams = new TimerF2838x.Params();
var timer38x = TimerF2838x.create(2, "&testTimerFxn", timer38xParams);

Whitney