TMS570LS3137: DNM bits of SPSR

sreenivasan m

Part Number: TMS570LS3137

Hi Team,

Can we update DNM bit field in SPSR register. Looks like,these are Do not modify bits and its value is unpredictable when read (in CPSR register).

If we can update DNM bit fields of SPSR, then it is not getting update with all 1 in DNM bit field, when written 1 to all bit positions in DNM field.

Any specific reason for this behaviour?

over 5 years ago

0 Sunil Oak over 5 years ago

TI__Mastermind 49120 points

Hi Sreenivasan,

Where do you see the code writing to DNM bits of SPSR? Is this related to this other post: https://e2e.ti.com/support/microcontrollers/hercules/f/312/t/838784

0 sreenivasan m over 5 years ago in reply to Sunil Oak

Genius 3705 points

Yes Sunil.

0 Sunil Oak over 5 years ago in reply to sreenivasan m

TI__Mastermind 49120 points

Ok, that other post is being answered. I will help close that post as well. Please mark this one as closed.

It usually does not help to create duplicate posts for a given topic. You can send us a reminder note if a question is not being responded to within a reasonable amount of time.

Regards, Sunil

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TMS570LS3137: DNM bits of SPSR