Compiler/TDA2SX: If a tested mcspi edma transfer example available?

Zhonghua Ke

Part Number: TDA2SX

Tool/software: TI C/C++ Compiler

I want to use a link task to communication with remote mcu with SPI2 in slave mode. Because of the efficiency, I would have to use dma to do the real transfer work.

However, I just use bsp_mcspi.c and bsp_mcspiEdma.c with GIO interface, and configured the SPI2 to MCSPI_OPMODE_DMAINTERRUPT mode, it does not work.

I have checked some related code, and found there were no crossbar configuration for edma, and not sure if it due to such issue, or, its no sense.

Btw, it works for MCSPI_OPMODE_INTERRUPT mode.

Any hinsts will be very appreciated. Or, if there was a programming guideline for such dma spi transfer job?

Regards,

over 5 years ago

0 Gaviraju Doddabettahalli Bettegowda over 5 years ago

TI__Genius 14305 points

Hi,

You can refer to the below example.

File-path: ti_components/drivers/pdk_XX_XX/packages/ti/csl/example/mcspi/mcspiMasterSlave

File-path: ti_components/drivers/pdk_XX_XX/packages/ti/drv/bsp_lld/mcspi/examples

Thanks

Gaviraju

0 Zhonghua Ke over 5 years ago in reply to Gaviraju Doddabettahalli Bettegowda

Intellectual 410 points

Thanks for your reply. However, I have to implement spi communiiction link in a IPU1 links&chains framework, such example operator the spi devices directly and I almost can't check it can work or not. And further more, it would be too hard to check the defects of the current code because it use a different code framework.

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Compiler/TDA2SX: If a tested mcspi edma transfer example available?