Resolved! Weird problem RTOS or compiler related
void app_SendBuffer (void *argument) { uint32_t dma_index; char Message1[26]; bool a; sprintf (Message1, "BufferSize_inBytes = %u\n", AdcHalfBufferSize_inByte); osDelay(5000); while (!USBD_Configured(0)) { osThreadYield (); } USBD_CDC_A...