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McBSP: Uart

Gonzalo5423
Prodigy 160 points

Other Parts Discussed in Thread: TMS320C6416

Hi,

I'm trying the application report SPRA633 in which McBSP works as an UART serviced by DMA.

I have run the code in both the actual platform (based on tms320c6416) and the simulator. It doesn't work correctly. I just want to implement the transmission part.

I have checked that DMA transfers the words to DXR register but McBSP doesn't send anything via serial port. In fact I never watch XEVT event flags in ERL register during DMA transmission.

Is this example code really working?

 

Thanks in advance,

Gonzalo

  • 0
    Prodigy 160 points

    I have watched TX line with a scope and there is not the expected signal.

    The signal is flat and has two or three spikes within a word. (I mean within the time that corresponds to a word)

    Did anybody make this example work?