LPC1343 UART Not working in real hardware but working in Keil Simulator?

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#include <LPC13xx.h>
 
#define TEST_LED1       (1 << 11)
#define TEST_LED2       (1 << 10)
 
void UART_Init(void);
void UART_Write(unsigned char value);
void UART_Write_Text(unsigned char *msg);
unsigned char UART_Read(void);
 
void Delay_ms(unsigned int time)
{
    unsigned int i,j;
    for(i=0;i<time;i++)
    {
        for(j=0;j<1005;j++)
        ;
    }
}
int main()
{   
    unsigned char msg[] = "EDA BOARD\r\n";
    SystemCoreClockUpdate(); 
    /*Update SystemCoreClock according to register settings */
    
    UART_Init();
    Delay_ms(100);
    UART_Write_Text(msg);
    while(1)
    {
        UART_Write(UART_Read());
    }
}
 
/****************Function Definition**********/
void UART_Init(void)
{
    LPC_IOCON->PIO1_6 &= ~0x07;    /*UART I/O config*/
  LPC_IOCON->PIO1_6 |= 0x01;     /*UART RXD*/
  LPC_IOCON->PIO1_7 &= ~0x07;   
  LPC_IOCON->PIO1_7 |= 0x01;     /*UART TXD*/
    
  /*Enable UART clock*/
  LPC_SYSCON->SYSAHBCLKCTRL |= (1<<12);
  LPC_SYSCON->UARTCLKDIV = 0x4;     /*divided by 4*/
    /*Core is Operating at 72MHz Hence UART is Operating at 72/4=18MHz*/
 
  LPC_UART->LCR = 0x83;             /*8 bits, no Parity, 1 Stop bit*/
    LPC_UART->DLM = 0x00;
  LPC_UART->DLL = 0x75;                         /*9600 bps Baud Rate*/
    LPC_UART->LCR = 0x03;                           /*DLAB = 0*/
  LPC_UART->FCR = 0x07;                         /*Enable and reset TX and RX FIFO*/
}
void UART_Write(unsigned char value)
{
    /*   
    THRE bit can be extracted by this U0LSR & 0x20
    THRE = 0 means data is present.
    THRE = 1 means register is empty.
    In order to transmit data, we have to wait will the THRE = 1,
    then only we can transmit data.
    */   
    while(!(LPC_UART->LSR&0x20));                        //THRE = 0 stay here
    LPC_UART->THR = value;
}
 
void UART_Write_Text(unsigned char *msg)
{
    while(*msg)
    {
        UART_Write(*msg);
        msg++;
    }
}
 
unsigned char UART_Read(void)
{
    /*
    Receiver Data Ready = U0LSR.0 bit
    RDR bit can be extracted by this U0LSR & 0x01
    RDR = 0 means no Data is Received in U0RBR
    RDR = 1 means that Data is present in U0RBR
    */
    while(!(LPC_UART->LSR & 0x01));                        //RDR = 0 stay here
    return (LPC_UART->RBR);
}
/*********************************************/