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TMS320C6678: Timer Module issue in Core Id 0

Thomas Rakesh
Intellectual 390 points

Part Number: TMS320C6678

Hi,

We use TI c6608 TI DSP. all 8 cores get an Hwi Interrupt at 1 ms each.But sometimes say once in 10000 times,Core id 0 receives interrupt with around 30000 cycles delay(25 micros),

this issue is not with other cores.None of the threads/interrupts are running(we commented and tried). (Core Id 0 has only some non critical operations like telnet to DSP etc for logging)

one more issue in same core 0, when we create some Timer based interrupts using Timer_start module ,say we want to invoke timer interrupt after 250 micros,but its triggered after like 280 micros.

this also happens sometimes..

..

timerParams.periodType=Timer_PeriodType_MICROSECS;
timerParams.runMode=Timer_RunMode_ONESHOT;
timerParams.startMode=Timer_StartMode_USER;

 timerHandle=Timer_create(8+CoreId,x,&timerParams,&y);

..

can you please help us in this regard.

Thanks,

Thomas