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TMS320F280049: Application issues.

Reed
Expert 1760 points
Part Number: TMS320F280049

Tool/software:

Hi Team,

How to configure CMPSS module? The current setting is set, but there is a change in the output PIN9,

and the CMPSS module still does not respond. What is the reason?

  • 0
    TI__Genius 14311 points

    Hi Reed,

    What are you attempting to use the CMPSS to do in your application? 

    From reviewing your code briefly, I notice that you're setting the DACVAL at 1024 which corresponds to the CMPSS output high when voltage is above 3.3V / 4 = 0.825V. 

    If you are using A3, note that you must access the CMPSS through the below CMPSS module inputs

    So like 491 would not be adjusting the correct CMPSS module.

    DriverLib should look something like this

    Fullscreen
    1
    ASysCtl_selectCMPHPMux(ASYSCTL_CMPHPMUX_SELECT_1,3U);
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
    Regards,
    Peter