void UART_RxStr (CPU_CHAR *str, CPU_INT16U num)
{
CPU_CHAR b;
CPU_INT16U i;
i = 0;
str[i] = ' ';
while(num) { /* Check error flags */
b = UART_RxByte();
num--;
if (b == 13) { /* Null character */
str[i] = '\0';
break;
} else if (b == 8) { /* Backspace */
if(i) {
i--;
str[i] = ' ';
}
} else { /* For any other character, read and store */
str[i] = b;
i++;
}
OSTimeDly(1);
}
if (str[i] != '\0') {
str[i] = '\0'; /* Ensure all strings are null terminated */
}
}
void BSP_UARTHandler (void)
{
CPU_INT32U status;
CPU_INT32U int_en;
status = BSP_UART_INTSTAT; /* Read the interrupt status register */
int_en = BSP_UART_INTEN; /* Read the interrupt enabled register */
status &= BSP_UART_INTMASK; /* Mask all other interrupts */
BSP_UART_INTCLR = status; /* Clear all triggered interrupts */
status &= int_en; /* Mask non-enabled interrupts */
if (status & BSP_UART_INTRX) { /* If a Rx interrupt has occured and is enabled... */
UART_TxByte(UART_RxByte()); /* Notify Probe and provide the incoming character */
}
}
/**
* Description: This function handles interrupts from the UART and insert the received byte into the buffer
* Arguments : None
* Returns : None
*/
void BSP_UARTHandler (void)
{
CPU_INT32U status;
CPU_INT32U int_en;
status = BSP_UART_INTSTAT; /* Read the interrupt status register */
int_en = BSP_UART_INTEN; /* Read the interrupt enabled register */
status &= BSP_UART_INTMASK; /* Mask all other interrupts */
BSP_UART_INTCLR = status; /* Clear all triggered interrupts */
status &= int_en; /* Mask non-enabled interrupts */
if (status & BSP_UART_INTRX)
{
//If a Rx interrupt has occured and is enabled...
//On stocke l'octet recu dans le buffer circulaire
Uart_Rx_Circular_Buffer[Circular_Buffer_Write_Index] = UART_RxByte();
//On incrémente l'index d'écriture du buffer
if(Circular_Buffer_Write_Index >= (CIRCULAR_BUFFER_SIZE - 1))
{
Circular_Buffer_Write_Index = 0;
}
else
{
Circular_Buffer_Write_Index++;
}
//Si l'index d'écriture est égal à l'index de lecture, c'est que le buffer est plein (on vient de faire un tour)
if(Circular_Buffer_Write_Index == Circular_Buffer_Read_Index)
{
//TODO: gérer le buffer overflow
Circular_Buffer_Overflow = OS_TRUE;
}
}
}
