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tms570 compatibility(SPI) + DMA

Alex Mink

Prodigy 30 points

Other Parts Discussed in Thread: HALCOGEN

6320.spi.c 5226.dma.cGood afternoon.

A debug Board on tms570ls20216aszwtqqi.

Configured the «Compatibility(SPI) Loopback Mode + DMA Mode»

Below I attach the files.

«Compatibility(SPI) Loopback Mode» works separately, but together with «Compatibility(SPI) Loopback Mode + DMA Mode» is
not works.

Hardware requests don't come from SPI.

If I write in SWCHENAS register, so everything works.

Tell me what I incorrectly configured?

over 12 years ago

0 Henry Nguyen over 12 years ago

TI__Expert 4225 points

Alex,

Are you using MIBSPI or SPI module to communicate to DMA?

Your DMA correctly mapped channel 0 / 1 to DMA request 0 / 1.

In datasheet, DMA request 0 and 1 are mapped to MIBSPI1 module TX/RX event, not SPI TX/RX event module.

When looking at your spi.c, it looks like you pulled in spi.h instead of mibspi.h.

can you please confirm?

0 Alex Mink over 12 years ago in reply to Henry Nguyen

Prodigy 30 points

I'm using spi.c, spi.h, dma.c, dms.h. What are requests for the spi? Thanks for answer my question!

0 Alex Mink over 12 years ago in reply to Alex Mink

Prodigy 30 points

Anybody knows how to solve my problem?

Have anyone working example compatibility SPI + DMA?

Such fee.

0 Henry Nguyen over 12 years ago in reply to Alex Mink

TI__Expert 4225 points

Hi Alex,

In Halcogen version 3.06 or later, you can see an example on MIBSPI+DMA:

C:\ti\Hercules\HALCoGen\v03.06.00\examples\TMS570LS31x directory.

This should be compatible with your device. Please give it a try.