Display “Hello World” message using Internal UART Embedded C
Program:-
#include<lpc214x.h>
void uart_init(void);
unsigned int delay;
unsigned char *ptr;
unsigned char arr[]="HELLO WORLD\r";
int main()
{
while(1)
{
uart_init();
ptr = arr;
while(*ptr!='\0')
{
U0THR=*ptr++;
while(!(U0LSR & 0x20)== 0x20);
for(delay=0;delay<=600;delay++);
}
for(delay=0;delay<=60000;delay++);
}
}
void uart_init(void)
{
PINSEL0=0X0000005; //select TXD0 and RXD0 lines
U0LCR = 0X00000083; //enable baud rate divisor loading and
U0DLM = 0X00; //select the data format
U0DLL = 0x13; //select baud rate 9600 bps
U0LCR = 0X00000003;
}