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TMS320F2810: About TMS320F2810 Errata 4.1.1

tadaaki matsumoto40
Expert 1215 points
Part Number: TMS320F2810
​Hi,
We have below questions with regards to new errata of TMS320F2810(Errata 4.1.1).
1) Errata 4.1.1 has a term "rare".
"This is expected to be a rare or nonexistent event in most applications."
Does this mean there is a rare device that has this problem, 
or all device may have this problem with rare timing? 
2) In the explanation, it has a term "Nested Interrupt".
Will this errata apply even if we don't use the nested interrupt?
If we doesn't enable interrupt within interrupt service routine,
can we assume this errata is not applicable?
Best Regards,
  • 0
    TI__Mastermind 27200 points
    Hi,

    The errata is saying the issue may occur on all devices, but that the likelihood of it is very low because it depends on the timing relationship between multiple different interrupts.

    If you are not using nested interrupts the issue will not occur. Actually it can only occur with nested interrupts in the same PIE group, so as long as you are not changing the group PIEIER register within the ISR the issue will not happen.

    Best regards,

    Richard