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uart_workshop.c
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uart_workshop.c
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#include <stdint.h>
#include <stdbool.h>
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/gpio.h"
#include "driverlib/pin_map.h"
#include "driverlib/sysctl.h"
#include "driverlib/uart.h"
int main(void) {
SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_16MHZ);
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
GPIOPinConfigure(GPIO_PA0_U0RX);
GPIOPinConfigure(GPIO_PA1_U0TX);
GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
UARTConfigSetExpClk(UART0_BASE, SysCtlClockGet(), 115200,
(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE));
UARTCharPut(UART0_BASE, 'E');
UARTCharPut(UART0_BASE, 'n');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, 'r');
UARTCharPut(UART0_BASE, ' ');
UARTCharPut(UART0_BASE, 'T');
UARTCharPut(UART0_BASE, 'e');
UARTCharPut(UART0_BASE, 'x');
UARTCharPut(UART0_BASE, 't');
UARTCharPut(UART0_BASE, ':');
UARTCharPut(UART0_BASE, ' ');
while (1)
{
if (UARTCharsAvail(UART0_BASE)) UARTCharPut(UART0_BASE, UARTCharGet(UART0_BASE));
}
}