/**
* @brief This function handles CEC interrupt request.
* @param None
* @retval None
*/
void CEC_IRQHandler(void)
{
/********************** Reception *******************************************/
/* Check if a reception error occurred */
if (CEC->ISR & (CEC_IT_RXACKE | CEC_IT_LBPE | CEC_IT_SBPE | CEC_IT_BRE | CEC_IT_RXOVR))
{
CEC->ISR = (CEC_IT_RXACKE | CEC_IT_LBPE | CEC_IT_SBPE | CEC_IT_BRE | CEC_IT_RXOVR);
ReceivedFrame = 2;
}
if (CEC_GetITStatus(CEC_IT_RXBR))
{
/* Check if the byte received is a Header */
if (rcv_inc == 0)
{
Tab_Rx[rcv_inc] = CEC_ReceiveData();
rcv_inc++;
}
else /* Receive each byte except header and opcode in the reception buffer */
{
Tab_Rx[rcv_inc] = CEC_ReceiveData();
rcv_inc++;
}
CEC_ClearITPendingBit(CEC_IT_RXBR);
}
/* Check if the byte received is the last one of the message */
if (CEC_GetITStatus(CEC_IT_RXEND))
{
ReceivedFrame = 1;
/* Clear all reception flags */
CEC_ClearITPendingBit(CEC_IT_RXEND);
rcv_inc =0;
}
/********************** Transmission ****************************************/
/* Check if a transmission error occurred */
if (CEC->ISR & (CEC_IT_TXACKE | CEC_IT_TXERR | CEC_IT_TXUDR | CEC_IT_ARBLST))
{
CEC->ISR = (CEC_IT_TXACKE | CEC_IT_TXERR | CEC_IT_TXUDR | CEC_IT_ARBLST);
/* KO */
/* Turn on LED3 */
}
/* Check if end of message bit is set in the data to be transmitted */
if (CEC_GetITStatus(CEC_IT_TXEND))
{
CEC_ClearITPendingBit(CEC_IT_TXEND | CEC_IT_TXBR);
send_inc = 0;
/* OK */
/* Turn on LED1 */
}
/* Check if data byte has been sent */
else if (CEC_GetITStatus(CEC_IT_TXBR))
{
/* Set EOM bit if the byte to be transmitted is the last one of the Transmit Buffer */
if (send_inc == TxSize )
{
CEC_EndOfMessage();
CEC_SendData(Tab_Tx[send_inc++]);
}
else
{
/* Put the byte in the TX Buffer */
CEC_SendData(Tab_Tx[send_inc++]);
}
CEC_ClearITPendingBit(CEC_IT_TXBR);
}
}
/**
* @brief This function handles CEC global interrupt request.
* @param None
* @retval None
*/
void CEC_IRQHandler(void)
{
/********************** Reception *******************************************/
/* Check if a reception error occured */
if (CEC->ISR & (CEC_IT_RXACKE | CEC_IT_LBPE | CEC_IT_SBPE | CEC_IT_BRE | CEC_IT_RXOVR))
{
RecepErrorCode = CEC->ISR;
CEC->ISR = (CEC_IT_RXACKE | CEC_IT_LBPE | CEC_IT_SBPE | CEC_IT_BRE | CEC_IT_RXOVR);
CECReceivedFrame = 2;
}
if (CEC_GetITStatus(CEC_IT_RXBR))
{
/* Check if the byte received is a Header */
if (rcv_inc == 0)
{
ReceiverAddress = (CEC_ReceiveData() & 0x0F);
rcv_inc++;
}
else /* Receive each byte except header and opcode in the reception buffer */
{
ReceiveBuffer[rcv_inc-1] = CEC_ReceiveData();
rcv_inc++;
}
CEC_ClearITPendingBit(CEC_IT_RXBR);
}
/* Check if the byte received is the last one of the message */
if (CEC_GetITStatus(CEC_IT_RXEND))
{
CECReceivedFrame = 1;
rcv_inc = 0;
/* Clear all reception flags */
CEC_ClearITPendingBit(CEC_IT_RXEND);
}
/********************** Transmission ****************************************/
/* Check if a transmission error occurred */
if (CEC->ISR & (CEC_IT_TXACKE | CEC_IT_TXERR | CEC_IT_TXUDR | CEC_IT_ARBLST))
{
CECTransErrorCode = CEC->ISR;
CEC->ISR = (CEC_IT_TXACKE | CEC_IT_TXERR | CEC_IT_TXUDR | CEC_IT_ARBLST);
/* KO */
/* Turn on LED3 */
STM_EVAL_LEDOn(LED3);
#ifdef LCD_DISPLAY
LCD_SetBackColor(LCD_COLOR_RED);
LCD_SetTextColor(LCD_COLOR_WHITE);
LCD_DisplayStringLine(LCD_LINE_7, (uint8_t *)"Send status : Failed");
#endif
}
/* Check if end of message bit is set in the data to be transmitted */
if (CEC_GetITStatus(CEC_IT_TXEND))
{
CEC_ClearITPendingBit(CEC_IT_TXEND | CEC_IT_TXBR);
/* OK */
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
#ifdef LCD_DISPLAY
LCD_SetBackColor(LCD_COLOR_GREEN);
LCD_SetTextColor(LCD_COLOR_WHITE);
LCD_DisplayStringLine(LCD_LINE_7, (uint8_t *)"Send status: Succeeded");
#endif
}
/* Check if data byte has been sent */
else if (CEC_GetITStatus(CEC_IT_TXBR))
{
/* Set EOM bit if the byte to be transmitted is the last one of the Transmit Buffer */
if (send_inc == (ByteNumber - 1))
{
CEC_EndOfMessage();
CEC_SendData(TransmitBuffer[send_inc++]);
send_inc=0;
}
else
{
/* Put the byte in the TX Buffer */
CEC_SendData(TransmitBuffer[send_inc++]);
}
CEC_ClearITPendingBit(CEC_IT_TXBR);
}
}