lpcware

Uart not displaying data in terminal window

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
  • Comment • 1
Content originally posted in LPCWare by marvic on Wed Aug 06 06:49:43 MST 2014
Hi,

I am using LPC mx-1114/301 board. Small piece of code written to send and receive the data to and from Hyper terminal.
Output, not showing typed data on terminal window. Any problem in source code? Can be appreciated to sort me out this. Here the code,


#include"lpc11xx_syscon.h"
#include"lpc11xx_gpio.h"
#include "lpc11xx_uart.h"
#include "LPC11xx.h"

#define SystemCoreClock 12000000UL
#define RDR 0x01
#define THRE 0x20


int main(void)
{
   unsigned char data;
   uint32_t  baudrate = (uint32_t)115200 ;
   uint32_t  DL;

   LPC_IOCON->PIO1_6 = 0x01;
   LPC_IOCON->PIO1_7 = 0x01;

   LPC_SYSCON->SYSAHBCLKCTRL |= (1<<12);
   LPC_SYSCON->UARTCLKDIV = 0x01;        //UART clock
   DL = (SystemCoreClock * LPC_SYSCON->SYSAHBCLKDIV) / (16 * baudrate * LPC_SYSCON->UARTCLKDIV);
   LPC_UART->LCR = 0x83; //0x10000011; 
   LPC_UART->DLM = 0x01; //DL / 256;   
   LPC_UART->DLL = 0x86; // DL % 256;  
   LPC_UART->LCR = 0x03; //0x00000011;
   LPC_UART->FCR = 0x07; //0x00000111; 

   while(1){

   while (!(LPC_UART->LSR & RDR));
        data = LPC_UART->RBR;

      while (!(LPC_UART->LSR & THRE));
       LPC_UART->THR = data;
    }
}

Thanks,

Outcomes