ledproject, C++ (gcc)

ledproject

//g++  5.4.0

#include <iostream>
#define rx_buffer_size	256
#define data_buffer_size 256

using namespace std;

unsigned char charToHexDigit(char c);

// Variables
volatile unsigned char data[data_buffer_size] = "";
volatile uint8_t rx_index = 0;
volatile uint8_t read_complete = 0;

int main()
{
        		
	uint16_t i = 0;
	uint16_t j = 0;
	volatile uint8_t temp1 = 0;
	volatile uint8_t ledIndex = 0;
	volatile uint8_t numLeds = 1;
	
	// Variables used for fading
	volatile uint8_t c_dif[3] = {0};	
	volatile uint8_t c_step[3] = {0};
	volatile uint8_t c_val[3] = {0};
	volatile uint8_t p_color[3] = {0};			
	volatile uint8_t new_color[3] = {0};			
	volatile uint16_t duration;
    
    data[0]='S';
    data[1]='F';
    data[2]='A';
    data[3]='F';
    data[4]='F';
    data[5]='3';
    data[6]='F';
    data[7]='X';
    
    int red = 0, green = 0, blue = 0;        
    i = 1;
    while(data[i] != 'X' && data[i] != 'x'){
        red = (charToHexDigit(data[i++]) << 4) | (charToHexDigit(data[i++]));
        cout<< red <<endl;
        
        green = (charToHexDigit(data[i++]) << 4) | (charToHexDigit(data[i++]));
        cout<< green <<endl;
        
        blue = (charToHexDigit(data[i++]) << 4) | (charToHexDigit(data[i++]));
        cout<< blue <<endl;
    }	
    int k = (charToHexDigit('0')<<4)|(charToHexDigit('8'));
    cout<<  k <<endl;
    
}

unsigned char charToHexDigit(char c){
	if(c >= 'a'){
		return c - 'a' + 10;
	}
	else if(c >= 'A'){
		return c - 'A' + 10;
	}
	else{
		return c - '0';
	}
}


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