TMS320F28377D: TMS320F28377d

BHARADWAJ VEEDALURI

Part Number: TMS320F28377D

Sir,

when I am trying to run the CLA task(CLA ISR) my cpu execution inside the while(1) is increasing .In while(1) I kept some algorithm which is taking 200 microsecs.Now if I am running the CLA task(DAC posting inside the CLA ISR) my while(1) execution timing increased to 300 micro secs.Kindly get me out of this situation.My main CPU shouldn't interfere into the CLA task.

Thanks & regards,

BHARADWAJ V

over 7 years ago

0 Manish Bhardwaj over 7 years ago

TI__Mastermind 43730 points

Are you sure you don;t have a CLA task interrupt that is triggering on the C28x, once the task is complete and that is manifesting as an increased execution time.

Clearly, this is an issue of seeing the system execution time.

0 Sal Pezzino over 7 years ago in reply to Manish Bhardwaj

TI__Mastermind 32995 points

It appears when your CLA task is completing, it may be triggering an interrupt on the C28x which is increasing some C28x CPU utilization.

Regards,
sal

0 BHARADWAJ VEEDALURI over 7 years ago in reply to Sal Pezzino

Intellectual 300 points

Ok If that is the case how to overcome this??

Thanks & regards,

BHARADWAJ V

0 BHARADWAJ VEEDALURI over 7 years ago in reply to Manish Bhardwaj

Intellectual 300 points

Ok if that is the case how to over come this??

Thanks & regards,
BHAARDWAJ V

0 Sal Pezzino over 7 years ago in reply to BHARADWAJ VEEDALURI

TI__Mastermind 32995 points

You do not trigger a C28x interrupt upon task completion. You can make sure the interrupt is disabled in the PIE.

If you need the interrupt, then this behavior is inherent and cannot be avoided.

sal

0 BHARADWAJ VEEDALURI over 7 years ago in reply to Sal Pezzino

Intellectual 300 points

Hi sir,

Without enabling the PIE how can I get the peripheral interrupts?I mean I have to enable and after the completion of service routine I have to send acknowledgement.

Thanks & regards,

Bharadwaj V

0 Sal Pezzino over 7 years ago in reply to BHARADWAJ VEEDALURI

TI__Mastermind 32995 points

You aren't be getting the interrupts if they aren't enabled.

If you have more questions, please let us know.

sal

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TMS320F28377D: TMS320F28377d