gistfile1.txt

#include "driver_config.h"
#include "target_config.h"
#include "uart.h"
#include "gpio.h"
#include "Timer16.h"
 
extern volatile uint32_t UARTCount;
extern volatile uint8_t UARTBuffer[BUFSIZE];
 
char controller = 'a';
int brightnessCount = 0;
int brightness1 = 10000;
int brightness2 = 9500;
 
int main (void) {
  UARTInit(9600);
 
#if MODEM_TEST
  ModemInit();
#endif
  //Pin P1.9 & P1.10 - These are the pins that are going to be used
  //Variables to control the brightness of the light (how far the servo goes)
  int off1 = brightness1 * 0;
  int veryDim1 = brightness1 * 0.25;
  int dim1 = brightness1 * 0.50;
  int bright1 = brightness1 * 0.75;
  int veryBright1 = brightness1 * 1;
 
  int off2 = brightness2 * 0;
  int veryDim2 = brightness2 * 0.25;
  int dim2 = brightness2 * 0.50;
  int bright2 = brightness2 * 0.75;
  int veryBright2 = brightness2 * 1;
 
  //Initialization
  volatile uint32_t period = 48000;
 
   GPIOInit();
 
   SystemCoreClockUpdate();
   init_timer16( 0, SystemCoreClock/1000-1 );
   enable_timer16(0);
   init_timer16PWM(1, period, MATCH0, 0);
   init_timer16PWM(1, period, MATCH1, 0);
   setMatch_timer16PWM( 1, 0, period/4 );
   setMatch_timer16PWM( 1, 1, period/4 );
 
   int i = 0;
   double frequency = 0.1; //0.1 for ClockWise and 0.9 for CounterClockWise
 
   //The main infinite loop
  while(1)
  {
   	  //Putting the value received into the 'controller' variable
   	  controller = *UARTBuffer;
   	  LPC_UART->IER = IER_THRE | IER_RLS | IER_RBR;  	/* Re-enable RBR */ 
   	  //if( UARTCount != 0 )
   	  {
         	  UARTCount = 0;
         	  //This code is to move the servo into the 'off' position
         	  if( controller == '2' )
         	  {
                	  //Checks first whether the position is less than the desired position or not
                	  if( brightnessCount < off1 )
                	  {
                       	  //CounterClockWise
                       	  while( brightnessCount != off2 ) {
                             	brightnessCount++;
                             	frequency = 0.9;
                             	init_timer16PWM( 1, period, MATCH1, 0 );
                             	enable_timer16(1);
                             	setMatch_timer16PWM( 1, 1, period * (1 - frequency) );
                             	disable_timer16(1);
                       	  }
                       	  for( i = 0; i < 50000; i++ );  //Delay
                	  }
                	  //Checks first whether the position is greater than the desired position or not
                	  else if( brightnessCount > off2 )
                	  {
                       	  //ClockWise
                       	 while( brightnessCount != off1 ) {
                             	 brightnessCount--;
                             	frequency = 0.1;
                             	init_timer16PWM( 1, period, MATCH0, 0 );
                             	enable_timer16(1);
                             	setMatch_timer16PWM( 1, 0, period * (1 - frequency) );
                             	disable_timer16(1);
                       	  }
                       	  for( i = 0; i < 50000; i++ );  //Delay
                	  }
         	  }
         	  //This code is to move the servo into the 'very dim' position
         	  else if( controller == '3' )
         	  {
                	  //Checks first whether the position is less than the desired position or not
                	  if( brightnessCount < veryDim1 )
                	  {
                       	  //CounterClockWise
                       	  while( brightnessCount != veryDim2 ) {
                             	brightnessCount++;
                             	frequency = 0.9;
                             	init_timer16PWM( 1, period, MATCH1, 0 );
                             	enable_timer16(1);
                             	setMatch_timer16PWM( 1, 1, period * (1 - frequency) );
                             	disable_timer16(1);
                       	  }
                       	  for( i = 0; i < 50000; i++ );  //Delay
                	  }
                	  //Checks first whether the position is greater than the desired position or not
                	  else if( brightnessCount > veryDim2 )
                	  {
                       	  //ClockWise
                       	 while( brightnessCount != veryDim1 ) {
                             	 brightnessCount--;
                             	frequency = 0.1;
                             	init_timer16PWM( 1, period, MATCH0, 0 );
                             	enable_timer16(1);
                             	setMatch_timer16PWM( 1, 0, period * (1 - frequency) );
                             	disable_timer16(1);
                       	  }
                       	  for( i = 0; i < 50000; i++ );  //Delay
                	  }
         	  }
         	  //This code is to move the servo into the 'dim' position
         	  else if( controller == '4' )
         	  {
                	  //Checks first whether the position is less than the desired position or not
                	  if( brightnessCount < dim1 )
                	  {
                       	  //CounterClockWise
                       	  while( brightnessCount != dim2 ) {
                             	brightnessCount++;
                             	frequency = 0.9;
                             	init_timer16PWM( 1, period, MATCH1, 0 );
                             	enable_timer16(1);
                             	setMatch_timer16PWM( 1, 1, period * (1 - frequency) );
                             	disable_timer16(1);
                       	  }
                       	  for( i = 0; i < 50000; i++ );  //Delay
                	  }
                	  //Checks first whether the position is greater than the desired position or not
                	  else if( brightnessCount > dim2 )
                	  {
                       	  //ClockWise
                       	 while( brightnessCount != dim1 ) {
                             	 brightnessCount--;
                             	frequency = 0.1;
                             	init_timer16PWM( 1, period, MATCH0, 0 );
                             	enable_timer16(1);
                             	setMatch_timer16PWM( 1, 0, period * (1 - frequency) );
                             	disable_timer16(1);
                       	  }
                       	  for( i = 0; i < 50000; i++ );  //Delay
                	  }
         	  }
         	  //This code is to move the servo into the 'bright' position
         	  else if( controller == '5' )
         	  {
                	  //Checks first whether the position is less than the desired position or not
                	  if( brightnessCount < bright1 )
                	  {
                       	  //CounterClockWise
                       	  while( brightnessCount != bright2 ) {
                             	brightnessCount++;
                             	frequency = 0.9;
                             	init_timer16PWM( 1, period, MATCH1, 0 );
                             	enable_timer16(1);
                             	setMatch_timer16PWM( 1, 1, period * (1 - frequency) );
                             	disable_timer16(1);
                       	  }
                       	  for( i = 0; i < 50000; i++ );  //Delay
                	  }
                	  //Checks first whether the position is greater than the desired position or not
                	  else if( brightnessCount > bright2 )
                	  {
                       	  //ClockWise
                       	 while( brightnessCount != bright1 ) {
                             	 brightnessCount--;
                             	frequency = 0.1;
                             	init_timer16PWM( 1, period, MATCH0, 0 );
                             	enable_timer16(1);
                             	setMatch_timer16PWM( 1, 0, period * (1 - frequency) );
                             	disable_timer16(1);
                       	  }
                       	  for( i = 0; i < 50000; i++ );  //Delay
                	  }
         	  }
         	  //This code is to move the servo into the 'very bright' position
         	  else if( controller == '6' )
         	  {
                	  //Checks first whether the position is less than the desired position or not
                	  if( brightnessCount < veryBright1 )
                	  {
                       	  //CounterClockWise
                       	  while( brightnessCount != veryBright2 ) {
                             	brightnessCount++;
                             	frequency = 0.9;
                             	init_timer16PWM( 1, period, MATCH1, 0 );
                             	enable_timer16(1);
                             	setMatch_timer16PWM( 1, 1, period * (1 - frequency) );
                             	disable_timer16(1);
                       	  }
                       	  for( i = 0; i < 50000; i++ );  //Delay
                	  }
                	  //Checks first whether the position is greater than the desired position or not
                	  else if( brightnessCount > veryBright2 )
                	  {
                       	  //ClockWise
                       	 while( brightnessCount != veryBright1 ) {
                             	 brightnessCount--;
                             	frequency = 0.1;
                             	init_timer16PWM( 1, period, MATCH0, 0 );
                             	enable_timer16(1);
                             	setMatch_timer16PWM( 1, 0, period * (1 - frequency) );
                             	disable_timer16(1);
                       	  }
                       	  for( i = 0; i < 50000; i++ );  //Delay
                	  }
         	  }
   	  }
  }
}