• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 82 subscribers
  • Views 539 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Original question:

TMS320F28377D: SPI with DMA access to MRAM device

CCS/TMS320F28379D: SPI with DMA access to FPGA

Sabina Greenberg101872
Expert 2780 points

Part Number: TMS320F28379D

Tool/software: Code Composer Studio

Dear support,

We would like to communicate with FPGA via SPI/DMA  - same as it is done in Example_2837xD_Spi_dma.

in Control card all work good, but I don't understand why there is no calling of InitSpiaGpio() function?

Which GPIO is configured for SPI_A. I would like to see in the scope clock, chipSelect, dataIn & datsaOut .

Or I missed something here...

Thanks,Sabina

  • 0
    TI__Guru 55035 points

    The example uses an internal loopback mode that connects the SIMO/SOMI lines internally for the sake of testing, so there's no need to enable the pins for SPI mode. In your actual application, you'll disable this loopback mode and configure the GPIOs as shown in InitSpiaGpio().

    Whitney