SPI_CLK(STM32L4)

[rajesh reddy]

Posted on July 20, 2017 at 12:42

Hi sir I'm working on STM32L476RG .While im using SPI peripheral in that im facing issue i.e in the clock gereration.

when clock generating according to resolution setting(ex-16 bit) after  that 16 clock pulses its having some more delay (12us)after that  again 16 clock pulses generating and again more delay ..every time its continuing ..whats the solution for that.

[S.Ma]

Posted on August 03, 2017 at 10:38

The SPI has 32 bit FIFO (Tx/Rx) so it should be possible to push 2x16 bit if sending data by polling or interrupt.

Otherwise, for maximum throughput, DMA should be used to run data block transfers.