TMS320F280039: Use CLB to trigger CLA task

Chanh Nguyen64

Expert 1230 points

Part Number: TMS320F280039
Other Parts Discussed in Thread: SYSCONFIG

Tool/software:

Hi TI,

I am planning to use the CLB1 interrupt to start a CLA task (e.g. Cla1task2)

What I do is that:

In sysconfig file, change the trigger source to be CLB1INT

In sysconfig file, attach the Cla1Task2 to Interrupt Handler of CLB interrupt

But with this setting, program could not run, could you please advise how to achieve the requirement.

Thanks a lot.

over 1 year ago

0 Luke Jones over 1 year ago

TI__Mastermind 28220 points

Hi Chanh,

You should use a separate ISR function for the CLB interrupt. If you don't want a CLB ISR and only want a CLA task to get triggered by CLB, you should leave interrupts disabled in the CLB module. Let me know if your CLA task gets triggered.

To clarify, did you configure the HLC module in the CLB SysConfig menu to trigger interrupts? You do this by adding the INTR instruction to your HLC program.

Thank you,

Luke

0 Chanh Nguyen64 over 1 year ago in reply to Luke Jones

Expert 1230 points

Hi Luke,

Yes I use the HLC to trigger the interrupt, by adding the INTR 1 instruction under HLC Progam 0.

So am I right that I need to disable CLB ISR, and remove this instruction on HLC? Could you show me on how I can trigger the CLA task from HLC, or CLB in general?

Thanks.

Chanh

+1 Luke Jones over 1 year ago in reply to Chanh Nguyen64

TI__Mastermind 28220 points

Hi Chanh,

You should keep the INTR instruction in the HLC but leave CLB interrupts disabled. The INTR instruction should trigger the CLA task without triggering an interrupt on the CPU.

Thank you,

Luke

0 Chanh Nguyen64 over 1 year ago in reply to Luke Jones

Expert 1230 points

Hi Luke,

It is working now. Thanks a lot for your help.

Chanh

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TMS320F280039: Use CLB to trigger CLA task