Hands-On RTOS with Microcontrollers

uartPrintOutTask

The uartPrintOutTask function that is responsible for printing out data received by USART2 is a bit more complex in this example. This example is also capable of comparing the received data against an expected length, as well as some rudimentary error detection:

1. The buffer and length variables are initialized and the UART peripheral is set up:

void uartPrintOutTask( void* NotUsed){  uint8_t rxData[20];  uint8_t expectedLen = 16;  memset((void*)rxData, 0, 20);  STM_UartInit(USART2, 9600, NULL, NULL);

2. Then, the body of the while loop starts a reception by calling startReceiveInt and then waits for the rxDone semaphore for up to 100 RTOS ticks for the transfer to complete.
3. If the transfer completes in time, the total number of ...