SPI with TMS570LS20216

Nick Wilkerson

Other Parts Discussed in Thread: TMS570LS20216

Are there any examples for using SPI with the TMS570LS20216? It seems the functions that exist for the TMS570LS04 don's exist for the former.

Does one call the SPI functions in this order?

void spiSetData(spiBASE_t *spi, uint32 group, uint16 * data);

void spiTransfer(spiBASE_t *spi, uint32 group);

while(!spiIsTransferComplete(spiBASE_t *spi, uint32 group)) continue;

uint32 spiGetData(spiBASE_t *spi, uint32 group, uint16 * data);

over 11 years ago

0 Zhaohong Zhang over 11 years ago

TI__Mastermind 22715 points

Nick,

You should be able to use the TMS570L04 functions on TMS570LS20216. I also think that the code sequence in your post is correct for serve SPI by polling tx/rx data flags.

Thanks and regards,

Zhaohong

0 Nick Wilkerson over 11 years ago in reply to Zhaohong Zhang

Intellectual 340 points

The TMS570LS04 has

uint32 spiTransmitAndReceiveData(spiBASE_t *spi, spiDAT1_t *dataconfig_t, uint32 blocksize, uint16 * srcbuff, uint16 * destbuff);

The TMS570LS20216 does not seem to have this function.

0 Zhaohong Zhang over 11 years ago in reply to Nick Wilkerson

TI__Mastermind 22715 points

Nick,

The SPI module on these tow devices is the same. If flag polling is used in this function, you should be able to use it as is. SPI does transmission and reception synchronously.

Thanks and regards,

Zhaohong

Arm-based microcontrollers

Arm-based microcontrollers forum

SPI with TMS570LS20216