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TMS320F280039: SCI communication fail

Chi Zhang2
Intellectual 2740 points
Part Number: TMS320F280039
Other Parts Discussed in Thread: C2000WARE

Hi Expert

My customer use 0039 as solar inverter DSP, but failed when switch from LIN to SCI, issue is TXENA and RXENA could be reset, when check the register, it show failed to be written. We check SCI sequence and other register, only TXENA and RXENA failed but other one successful. Could you give some advice?

BR

Chi

  • 0
    TI__Mastermind 19795 points

    Hi Chi,

    Can you do a read using HWREGH (see sci.c in C2000Ware for examples of how to use that) to read the TXENA and RXENA bits. I believe this could just be the register viewer in CCS not being updated, TXENA and RXENA are probably correctly being reset.

    Regards,

    Vince