I am trying to change a STM32F4 from slave to master after certain amount of time, send a message as master, and go back to slave. I found out that configuring the SPI as slave_rxonly and enabling the SPI will cause the clock to unexpectedly sent a c...

I am trying to make two STM32F4 with HAL communicate through SPI Simplex mode by changing who is the master node when it's ready to send a message. Both of the platforms start as a slave and they change to master to send a message and then go back to...