main.cpp

00001 #include "mbed.h"
00002  
00003 DigitalOut latch(p15);
00004 DigitalOut enable(p16);
00005 DigitalIn r(p5);
00006 DigitalIn g(p6);
00007 DigitalIn b(p7);
00008  
00009 SPI spi(p11, p12, p13);
00010  
00011 void RGB_LED(int red, int green, int blue) {
00012     unsigned int low_color=0;
00013     unsigned int high_color=0;
00014     high_color=(blue<<4)|((red&0x3C0)>>6);
00015     low_color=(((red&0x3F)<<10)|(green));
00016     spi.write(high_color);
00017     spi.write(low_color);
00018     latch=1;
00019     latch=0;
00020 }
00021  
00022 int main() {
00023     int red=0;
00024     int green=0;
00025     int blue=0;
00026     spi.format(16,0);
00027     spi.frequency(500000);
00028     enable=0;
00029     latch=0;
00030     wait(2);
00031     while(1) {
00032         if (r == 1){
00033             if (red < 255) red += 5;
00034         } else {
00035             if (red > 0) red -= 5;
00036         }
00037         if (b == 1){
00038             if (blue < 255) blue += 5;
00039         } else {
00040             if (blue > 0) blue -= 5;
00041         }
00042         if (g == 1){
00043             if (green < 255) green += 5;
00044         } else {
00045             if (green > 0) green -= 5;
00046         }
00047         RGB_LED(red, green, blue);
00048         wait(0.5);
00049     }
00050 
00051 }