__interrupt void USCIAB0RX_ISR(void)
{
if (IFG2 & UCA0RXIFG) //If received an USCIA0 RX interrupt
{
debugConsoleIsr(UCA0RXBUF); //Call the function. Reading this register clears the interrupt flag
}
if (UCB0STAT & UCNACKIFG) //If I2C bus received a NACK...
{
UCB0CTL1 |= UCTXSTP; // ... then send a STOP
UCB0STAT &= ~UCNACKIFG; // and clear the status bit.
}
}
/**
Debug console interrupt service routine, called when a byte is received on UART.
@pre In startup_ccs.c, UARTIntHandler is set as the ISR for the UART0 Rx and Tx interrupt
@pre In startup_ccs.c, this function is declared, e.g:
<pre>
extern void UARTIntHandler(void);
</pre>
@pre Interrupts have been enabled, e.g:
<pre>
IntMasterEnable();
IntEnable(INT_UART0);
UARTIntEnable(UART0_BASE, UART_INT_RX | UART_INT_RT);
</pre>
@pre UART has been configured
@post a byte received on the UART will result in debugConsoleIsr() function pointer called
*/
void UARTIntHandler(void)
{
unsigned long ulStatus;
// Get the interrupt status.
ulStatus = UARTIntStatus(UART0_BASE, true);
// Clear the asserted interrupts.
UARTIntClear(UART0_BASE, ulStatus);
// Loop while there are characters in the receive FIFO.
while(UARTCharsAvail(UART0_BASE))
{
// Read the next character from the UART
uint8_t c = (uint8_t) UARTCharGetNonBlocking(UART0_BASE);
debugConsoleIsr(c); // call the function pointer
}
}
/**
Debug console interrupt service routine, called when a byte is received on UART.
@pre In startup_ccs.c, UARTIntHandler is set as the ISR for the UART0 Rx and Tx interrupt
@pre In startup_ccs.c, this function is declared, e.g:
<pre>
extern void UARTIntHandler(void);
</pre>
@pre Interrupts have been enabled, e.g:
<pre>
IntMasterEnable();
IntEnable(INT_UART0);
UARTIntEnable(UART0_BASE, UART_INT_RX | UART_INT_RT);
</pre>
@pre UART has been configured
@post a byte received on the UART will result in debugConsoleIsr() function pointer called
*/
void UARTIntHandler(void)
{
toggleLed(4);
//printf("$");
unsigned long ulStatus;
// Get the interrupt status.
ulStatus = UARTIntStatus(UART0_BASE, true);
// Clear the asserted interrupts.
UARTIntClear(UART0_BASE, ulStatus);
// Loop while there are characters in the receive FIFO.
while(UARTCharsAvail(UART0_BASE))
{
// Read the next character from the UART and write it back to the UART.
uint8_t c = (uint8_t) UARTCharGetNonBlocking(UART0_BASE);
debugConsoleIsr(c); //reading this register clears the interrupt flag
}
}