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TMS570LS0714: Configuring DMA with Mibspi

Aditi Mishra
Prodigy 160 points
Part Number: TMS570LS0714
Other Parts Discussed in Thread: HALCOGEN

Hello,

I have an external ADC connected to Mibspi peripheral and I am sampling data at 250 ksps. I want to use dma to transfer data from mibspi rx buffer. Could you please tell me what would be the best halcogen configuration to do so. I have already tried configuring one DMA channel and I am able to transfer 127 bytes of data but I wanted ti know if there is a better way to do this. Thanks in advance.

Regards,

Aditi

  • 0
    TI__Guru**** 197356 points

    Hello Aditi,

    You can try two DMA channels. One DMA channel is for buffer0 to buffer 63, and 2nd DMA channel for MibSPI RAM buffer 64 to buffer 127. The MibSPI transfer group is configured to be the size of 128 buffers as you did.