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TMS320F28388D: Query about 26.4 Time-Base (TB) Submodule

Katherine Wang
Intellectual 2210 points
Part Number: TMS320F28388D


Hi Team,

Question 1

Should this be changed to 'B-1'?

According to the definition of the register, assuming that A is ePWM0, and the desired link is ePWM3, that is, B=3, then the value written to the link register of A should be 2 (B minus 1) instead of B+1

Question 2

The chapter '26.4.3.4 ePWM SYNC Selection' only has one 'Table 26-3. ePWM SYNC Selection', but its description is "Table 26-3 specifies the sources for the ePWM SYNC input and output." Is it describing 'input' or 'output'?

The picture below is the definition for EPWMSYNCINSEL register.

Is there any connection between Table 26-3 and EPWMSYNCINSEL register?

I couldn't quite follow what Table 26-3 is describing.

Kind regards,

Katherine

  • 0
    TI__Genius 11076 points

    Hello Katherine,

    Thank you for pointing these issues out! For your first question, yes, that should be B-1. For your second question, Table 26-3 is supposed to refer to and be identical in content to the EPWMSYNCINSEL.SEL register field description, but does not appear to have been properly updated to reflect this.

    For both issues, I've submitted a ticket to get these fixed.

    Thanks again,

    Jason Osborn