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SPI RXONLY bit toggle when SPI is enabled

Question asked by Alexander Zarubkin on Mar 27, 2018



Is it OK to toggle RXONLY bit when SPI is enabled? The reference manual on STM32 family says nothing special about this bit (in contrast to DFF and CRCEN), but when I configure SPI with RXONLY enabled and later turn this bit off, the transmitter doesn't go active.

Can anyone confirm this? My MCU is STM32F103CB.