AnsweredAssumed Answered

SPI NSS cannot change automatically

Question asked by Zhong.Wenbin.001 on May 5, 2016
Latest reply on May 13, 2016 by Clive One
Hi, If I configure NSS as hardware management, it it controlled by the SPI peripheral. However, from the manual, the NSS is low when the SPI is enabled, and NSS is changed to high only when SPI is disabled.

I think it is a stupid design, it is nor compatible with many ICs. I have to configure NSS as software management. The NSS pin is configured as a general output IO, and control it manually (Low before transaction, High when transaction is completed).

Experiment platform: STM32F746ZGT6