To generate the SPI clock SCLK without data transfer

[Jagath]

Hello,

I am using STM32F446RE controller to communicate with TLC2578 old ADC converter through SPI communication.

To initialize the ADC first CS should be LOW and 16 clock - SCLK cycles need to issued.

1. How to start the SPI clock without data transfer.
2. Will the SPI clock starts after pulling CS low.

Thank you

Jagath

[waclawek.jan]

How is this different from transmitting 0x0000 or 0xFFFF?

The hardware NSS handling is mostly unusable anyway, so you want to handle CS "manually" (as GPIO Output) anyway.

JW