ze chen / Shiftbrite

Shiftbrite class

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Shiftbrite.cpp

00001 #include "mbed.h"
00002 #include "Shiftbrite.h"
00003 
00004 
00005 
00006 
00007 Shiftbrite::Shiftbrite(PinName pin_e, PinName pin_l, PinName pin_do,PinName pin_di, PinName pin_clk): _pin_e(pin_e), _pin_l(pin_l), _spi(pin_do, pin_di, pin_clk)
00008 {
00009    SPI _spi(pin_do, pin_di, pin_clk);
00010    _pin_l=0;
00011    _pin_e=0;
00012     _spi.format(16,0);
00013     _spi.frequency(500000);
00014 }
00015 
00016 
00017 void Shiftbrite::RGB(int red, int green, int blue){
00018 
00019     unsigned int low_color=0;
00020     unsigned int high_color=0;
00021     high_color=(blue<<4)|((red&0x3C0)>>6);
00022     low_color=(((red&0x3F)<<10)|(green));
00023     _spi.write(high_color);
00024     _spi.write(low_color);
00025     _pin_l=1;
00026     _pin_l=0;
00027     
00028     }
00029     
00030
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