APA102.cpp

00001 #include "mbed.h"
00002 #include "APA102.h"
00003 
00004 void fill_solid( struct CRGB * leds, int numToFill, const struct CRGB& color) {
00005     for(int i = 0; i < numToFill; i++) {
00006         leds[i] = color;
00007     }
00008 }
00009 
00010 void APA102_write(mbed::SPI& mSPI, struct CRGB * leds, int numToFill) {
00011     
00012     mSPI.write(0);
00013     mSPI.write(0);
00014     mSPI.write(0);
00015     mSPI.write(0);
00016     
00017     for (int i = 0; i < numToFill; ++i) {
00018         mSPI.write(0xE0 | 31);
00019         mSPI.write(leds[i].b);
00020         mSPI.write(leds[i].g);
00021         mSPI.write(leds[i].r);
00022     }
00023     
00024     int nDWords = numToFill / 32;
00025     do {
00026         mSPI.write(0xFF);
00027         mSPI.write(0x00);
00028         mSPI.write(0x00);
00029         mSPI.write(0x00);
00030     } while(nDWords--); 
00031     
00032 }