Part Number: TM4C129ENCPDT
Tool/software: Code Composer Studio
Dear all,
I am using TivaWare_C_Series-2.1.4.178. I use UART echo example program, and checked UART0 interrupt and is working fine.
But when i modified the code for other UARTs , i am able to send but interrupt is not working.
The program is setting into IntDefaultHandler function.
The following changes has been made:
/**************************Initialization***********************************************************/
g_ui32SysClock = MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |SYSCTL_OSC_MAIN |SYSCTL_USE_PLL |SYSCTL_CFG_VCO_480), 120000000);
//
// Enable the GPIO port that is used for the on-board LED.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPION);
//
// Enable the GPIO pins for the LED (PN0).
//
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTN_BASE, GPIO_PIN_0);
//
// Enable the peripherals used by this example.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART4);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOK);
//
// Enable processor interrupts.
//
ROM_IntMasterEnable();
//
// Set GPIO K0 and K1 as UART pins.
//
GPIOPinConfigure(GPIO_PK0_U4RX);
GPIOPinConfigure(GPIO_PK1_U4TX);
ROM_GPIOPinTypeUART(GPIO_PORTK_BASE, GPIO_PIN_0 | GPIO_PIN_1);
//
// Configure the UART for 115,200, 8-N-1 operation.
//
ROM_UARTConfigSetExpClk(UART4_BASE, g_ui32SysClock, 115200,
(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |
UART_CONFIG_PAR_NONE));
//
// Enable the UART interrupt.
//
ROM_IntEnable(INT_UART4);
ROM_UARTIntEnable(UART4_BASE, UART_INT_RX | UART_INT_RT);
/*************************************************************************************************************************/
/****************In Interrupts********************************************************************************************/
void UARTIntHandler(void)
{
ui32Status5 = ROM_UARTIntStatus(UART4_BASE, true);
//
// Clear the asserted interrupts.
//
ROM_UARTIntClear(UART4_BASE, ui32Status5);
//
// Loop while there are characters in the receive FIFO.
//
while(ROM_UARTCharsAvail(UART4_BASE))
{
g_UARTBuffer[g_UART[Count] = ROM_UARTCharGetNonBlocking(UART4_BASE);
*
*
*
// Program to save received data in buffer
*
*
*
}
}
