This is mostly a post to help people who try to google this later since I couldn't find anything. If you look at AN2606 table 197, it lists the minimum startup time for the bootloader on a bunch of different STM32 microcontrollers. For some reason, j...

My goal is to have a timer that triggers an interrupt at 1kHz and for that to call a few lines of code that starts a HAL_SPI_TransmitReceive_DMA call (or possibly more than one on different SPI buses). Once the SPI calls are made, it enters a while l...