/**
* @brief IRQ handler for USART2
*/
void USART2_IRQHandler(void) {
// If transmit buffer empty interrupt
if(USART_GetITStatus(USART2, USART_IT_TXE) != RESET) {
uint8_t c;
if (txCallback) { // if not NULL
// get data from higher layer using callback
if (txCallback(&c)) {
USART_SendData(USART2, c); // Send data
} else { // if no more data to send disable the transmitter
USART_ITConfig(USART2, USART_IT_TXE, DISABLE);
}
}
}
// If RX buffer not empty interrupt
if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET) {
uint8_t c = USART_ReceiveData(USART2); // Get data from UART
if (rxCallback) { // if not NULL
rxCallback(c); // send received data to higher layer
}
}
}
void BufferedSerial::rxIrq(void)
{
// read from the peripheral and make sure something is available
if (serial_readable(&_serial)) {
_rxbuf = serial_getc(&_serial); // if so load them into a buffer
if (rxCallback)
rxCallback();
}
}