Upon an option byte programming failure for any reason, the mismatch values of the option bytes are loaded after reset. Those mismatch values force a secure configuration that might permanently lock the device.Please connect your board to STM32CubePr...

Can the I2S Rx DMA and CDC Tx share a single circular buffer? This would involve the I2C writing data to the buffer, and once enough data is present for the CDC Tx to send out one packet, the I2S task would inform the CDC task to begin transfer, with...

Is your data flow ADC -> SAI(I2S) -> USB CDC (Host PC)? If my understanding is incorrect, please draw a block diagram for illustration.It’s noticed that you put too many stuffs in HAL_SAI_RxCpltCallback() and HAL_SAI_RxHalfCpltCallback(), such as the...