TMS320F28335 DSP/BIOS

prem shukla

I am using SWI_post(&SWI_Interrupt1) inside HWI (Hardware Interrupt), The SWI_interrupt is being ignored whenever HWI is being processed. can anyone please suggest the region behind this?

Regards,

Prem

over 12 years ago

0 David M. Alter over 12 years ago

TI__Guru 61235 points

I'm not sure I follow you. You're in the HWI and you post a SWI. The SWI will not run until you exit the HWI because HWI's have higher priority than SWIs. Are you saying the SWI never runs?

Regards,

David

0 prem shukla over 12 years ago in reply to David M. Alter

Prodigy 130 points

Hi David,

Thanks for your reply!, ya it's true.... SWI runs just in beginning execution for code, after couple of execution SWI does not run at all.

Even all the SWIs does not run at all after couple of execution.

Best Regards,

Prem

0 David M. Alter over 12 years ago in reply to prem shukla

TI__Guru 61235 points

Prem,

No way for me to know for sure what is wrong from where I sit. Sounds like the DSP/BIOS kernel is crashing or something. Maybe you don't have the HWI setup properly for DSP/BIOS (you need remove the interrupt keyword from the ISR declaration and use the BIOS dispatcher if you are making BIOS calls from your HWI).

Suggest looking at the code in SPRA958:

http://www.ti.com/mcu/docs/litabsmultiplefilelist.tsp?sectionId=96&tabId=1502&literatureNumber=spra958l&docCategoryId=1&familyId=1414

There are basic DSP/BIOS code examples there that are all setup and work correctly.

Regards,

David

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TMS320F28335 DSP/BIOS