hello,
i am using lm4f132h5qd.
in my design ir module transceiver is connected to the uart 2 of microcontroller.i have wriiten the codes for ir section but it is not working on the tx pin of microcontroller there is no output instead uart0 is working fine,my codes are:
void InitHardware(void)
{
// Set the clocking to 50 mhz.
SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_16MHZ);
// Initialize UART2 as irda at 9600 8-N-1.
//Enable UART Peripheral
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART2);
//Enable GPIO-Port
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
// Set GPIO D6 as UART pins (nur Receive-Pin)
GPIOPinConfigure(GPIO_PD6_U2RX);
GPIOPinConfigure(GPIO_PD7_U2TX);
GPIOPinTypeUART(GPIO_PORTD_BASE, GPIO_PIN_6);
GPIOPinTypeUART(GPIO_PORTD_BASE, GPIO_PIN_7);
//UART irDA mode enable
UARTEnableSIR(UART2_BASE, 0);
UARTConfigSetExpClk(UART2_BASE, SysCtlClockGet(), 9600,(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE));
UARTDisable(UART2_BASE);
UARTEnable(UART2_BASE);
}
//main
while(1)
{
UARTCharPut(UART2_BASE, 'a');
}
but controller is not transmitting the value and the tx pin is always 0.
