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TMS470's GIO output fed by DMA

Wwenquan Lli
Prodigy 50 points

Hello, good people:

Has anyone succeeded in sending out a digital signal through a GIO pin through the use of a DMA channel? This means that the DMA sends out data from RAM to a GIO pin without the involvment of the CPU.

Thanks in advance!

:)

 

 

 

 

  • 0
    TI__Genius 14205 points

    Hi

    I think you are asking for TMS470R1x series of device. The answer is Yes. 
    Have the DMA destination address to GIO - DOUT ( or DSET(if GIO supports)) register and Source as RAM and do 8 bit transfer.  

    Please be aware that the TMS470R1 Series (including the TMS470R1A288 device) is not recommended for new designs. However, the device, tool, or software continues to be in production to support existing customers.  Please see the full 'NRDN' notice here.

    Soon TI will be launching the new TMS470M series of microcontrollers.  This series will feature greater ARM CPU performance and a similar peripheral set to the TMS470R1 Series of microcontrollers.  Please come back soon for more information about the TMS470M Series of microcontrollers.  The product preview for the first two microcontrollers in the TMS470M series is available here: TMS470MF0660x - SPNS157.

    Best Regards
    Prathap