I found that I misunderstood many things about uvision4, and saved the wrong files.  Now I have corrected my mistakes and started again.  The following is the new main.c


// Program - TurnLedOn
// Description - To turn one LED on
// Author - TL Fong
// Version - 0.2
// Date - 2013jul09
// Copyright - No copyright, free for everybody
// Hardware - Somy ARM Cortex M0 LPC1114 Learning Board 
// Software Keil uVision 4.71.2.0 
// Hardware configuration notes
//   1. LED1 is connected to PIO1-8 

#include <stdio.h>
#include "LPC11xx.h"

void enableGpioClock()
  {
  LPC_SYSCON->SYSAHBCLKCTRL |= (1UL <<  6);
  LPC_SYSCON->SYSAHBCLKCTRL |= (1UL <<  16);
  }

void setPort1Pin8ToOutput() // PIO1_8 for LED1 pin set to output
  {
  LPC_GPIO1->DIR |= (1<<7);
  }

void setPort1Pin8Low() // PIO1_8 set Low to turn on LED1
  {
  LPC_GPIO0->DATA &= ~(1<<8);
  }

void setPort1Pin8High() // PIO1_8 set High to turn on LED1
  {  
  LPC_GPIO0->DATA |= (1<<8);
  }

void delay()
  {
int i;
  for (i = 0; i < 0x000FFFFF; i++)
    {
 }
  }

int main()
  {
  setPort1Pin8ToOutput(); // PIO1_8 for LED1 pin set to output
  while (1)
 {  
 setPort1Pin8Low(); // Turn on LED1
    delay();
    setPort1Pin8Low(); // Turn off LED1
    delay();
    }
  }

// Program development notes
// 1. This is the very first program I am writing for the LPC1114 learning board.
// 2. LED1 is connection to PIO1-8
// 3. The program has built without errors, but I have no confidence it will run
//    the first time.  There is a risk that this program might corrupt the
//    auto start self test LED display program stored in the flash. So I dare not 
//    to download and run it.  I guess I need to first make sure a couple of 
//    things. 
//    (a) If I upload this program, will the old program in flash got replaced?
//    (b) Can I upload this program in a spare space in flash, so not to overwrite
//        the original program there?
// 4. I remember that when I played with Arduino, there is no such worry, because 
//    there is no self test LED display message in Arduino.
// 5. Since I am new to this PLC1114 learning board, I think I better play safe and
//    and read more about flash downloading etc before running this first program.
//    Another think I should also do is to first run this program in simulation 
//    mode, to check out if the PIO1-8 pin is indeed going high and low.
// 6. One more thing I need to find out the the time delay function.  I wonder
//    if Keil C has any delay function like delayMilliseconds()
// 7. For Raspberry Pi Python I can easily google the Python to give answers for 
//    the above questions.  But for this Keil C, I have no idea where to start.  
//    Perhaps I should try the uVision Help first.
// 8. Rebuild target 'Blinky' results
//    Program Size: Code=1376 RO-data=284 RW-data=4 ZI-data=612  
//    "blinky.axf" - 0 Error(s), 0 Warning(s).

.END