Part Number: TM4C129DNCPDT
#include <stdint.h>
#include <stdbool.h>
#include "inc/hw_memmap.h"
#include "driverlib/sysctl.h"
#include "driverlib/gpio.h"
#include "driverlib/uart.h"
#include "driverlib/pin_map.h"
int main(void)
{
uint32_t sysClock;
// Set system clock to 120 MHz
sysClock = SysCtlClockFreqSet(
SYSCTL_XTAL_25MHZ |
SYSCTL_OSC_MAIN |
SYSCTL_USE_PLL |
SYSCTL_CFG_VCO_480,
120000000
);
// Enable GPIOA
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
while(!SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOA));
// Enable UART0
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
while(!SysCtlPeripheralReady(SYSCTL_PERIPH_UART0));
// Configure PA0 (RX) and PA1 (TX) for UART0
GPIOPinConfigure(GPIO_PA0_U0RX);
GPIOPinConfigure(GPIO_PA1_U0TX);
GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
// Configure UART0: 9600 baud, 8 data bits, no parity, 1 stop bit
UARTConfigSetExpClk(
UART0_BASE,
sysClock,
9600,
UART_CONFIG_WLEN_8 |
UART_CONFIG_STOP_ONE |
UART_CONFIG_PAR_NONE
);
// Enable UART0
UARTEnable(UART0_BASE);
// Main loop
while(1)
{
UARTCharPut(UART0_BASE, 'H');
UARTCharPut(UART0_BASE, 'i');
UARTCharPut(UART0_BASE, '\r');
UARTCharPut(UART0_BASE, '\n');
SysCtlDelay(sysClock / 3); // ~1 second delay
}
}
this is the code i am using for uart communication, i am using ttl to usb converter and putty for terminal , i have used the other uart ports also the receiver part is working completely fine but transmitter part is not working so guide me to get the desired utput when i debug the code i see blank screen in putty
