STM32F446 SPI transfer with DMA to ST1642GW LED Driver

Posted on October 26, 2016 at 14:11

I'd like to transfer data from STM32F446 MCU to an array of ST1642GW LED drivers efficiently.

Right now, I do so by a soft SPI interface which is limited in speed and consumes too much CPU time.

The real challenge as I see it is the synchronous Latch and MOSI transfer. I have 16 clock cycles for data transfer and command at the same time.

Is there a possibility to do so by using the standard peripherals, or, even better, use additional DMA?

Thanks!