Problem with Lpc2148 Uart

[mrhazard]

lpc2148 uart

Hi guys, i'm trying to set up a small code to echo a char in hyperterminal but it doesnt seem to work... here is my code I hope you can help me

#include <LPC214X.H>
#define CR 0x0D
void Initialize(void); // Inicializacion de UART0
int putchar (int ch); // Escribe un carácter en la puerta serial
int getchar (void); // Lee un caracter en la puerta serial



/************************* MAIN *************************/
int main(void)
{
	Initialize();// Inicialización de la UART0
	while(1)
	{
	    	putchar(U0RBR); 
		 
	};
		
} 
	
int putchar (int ch) /* Write character to Serial Port */
{
if (ch == '\n') {
while (!(U0LSR & 0x20));
U0THR = CR; /* output CR */
}
while (!(U0LSR & 0x20));
return (U0THR = ch);
}
int getchar (void) /* Read character from Serial Port */
{
while (!(U0LSR & 0x01));
return (U0RBR);
}
/*************** System Initialization ***************/
void Initialize()
{
VPBDIV =0x00; 
/* Initialize Pin Select Block for Tx and Rx */
PINSEL0=0x5;
/* Enable FIFO's and reset them */
U0FCR=0x7;
/* Set DLAB and word length set to 8bits */
U0LCR=0x83;
/* Baud rate set to 9600 */
U0DLL=0x62;
U0DLM=0x0;
/* Clear DLAB */
U0LCR=0x3;
}
/*********************************************************/

 

[mrhazard]

uart lpc2148

anyone?

 

[sivasujith]

Hi..

Your code is simulating properly...... To get outputs only when you press a key.. you have to enable interrupts and write an ISR__irq....