51单片机STC15F104W同系列芯片驱动WS2812彩灯！！

/* IRC15F107W 管脚（默认内部震荡源24Mhz） 1 P3.4 2 VCC 3.8--5.5V 3 P3.5 4 GND 5 P3.0 接烧录器的TXD 6 P3.1 接烧录器的RXD 7 P3.2 8 P3.3 */ #include "reg52.h" #include "intrins.h" #define WS2812_NUM 60 sbit Led_Pin = P3^0; unsigned short G_0=191; unsigned short R_0=98; unsigned short B_0=10; unsigned short G_1=11; unsigned short B_1=45; unsigned short R_1=14; void delay_ms(unsigned int ms) //@24.000MHz { unsigned char data i, j; while(ms--){ _nop_(); i = 24; j = 85; do { while (--j); } while (--i); } } void Delay75us(void) //@24.000MHz { unsigned char data i, j; i = 2; j = 189; do { while (--j); } while (--i); } void ws2812_writebit1(void){ Led_Pin=1; _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_();_nop_(); _nop_();_nop_();_nop_();_nop_();_nop_();_nop_();//调整此行可注释掉 Led_Pin=!Led_Pin; //_nop_();_nop_();_nop_(); } void ws2812_writebit0(void){ Led_Pin=1; _nop_();_nop_();_nop_();_nop_();_nop_(); Led_Pin=!Led_Pin; _nop_();_nop_();_nop_();_nop_();_nop_();_nop_(); _nop_();_nop_();_nop_();_nop_();//调整此行可注释掉 } void ws2812_writecolor(unsigned short dat){ //由于STC8G1K08执行左移或者右移等移位操作耗时太久（2us，无符号短整型都这样），导致时序严重落后，所以用原始的if-else代码进行代替 if(dat&0x80) ws2812_writebit1(); else ws2812_writebit0(); if(dat&0x40) ws2812_writebit1(); else ws2812_writebit0(); if(dat&0x20) ws2812_writebit1(); else ws2812_writebit0(); if(dat&0x10) ws2812_writebit1(); else ws2812_writebit0(); if(dat&0x08) ws2812_writebit1(); else ws2812_writebit0(); if(dat&0x04) ws2812_writebit1(); else ws2812_writebit0(); if(dat&0x02) ws2812_writebit1(); else ws2812_writebit0(); if(dat&0x01) ws2812_writebit1(); else ws2812_writebit0(); } void ws2812_writeled(unsigned short green,unsigned short red,unsigned short blue){ ws2812_writecolor(green); ws2812_writecolor(red); ws2812_writecolor(blue); } void ws2812_rest() { Led_Pin=0; Delay75us(); } void ws2812_clear() { static int j=0; for(j=0;j<WS2812_NUM;j++) { ws2812_writeled(0,0,0); } ws2812_rest(); ws2812_rest(); ws2812_rest(); } void WS2812_DIS() { static int j=0; int i; j%=WS2812_NUM; j++; for(i=0;i<WS2812_NUM;i++) { if(i>j&&(i<j+10)) { ws2812_writeled(G_0,R_0,B_0); } else { ws2812_writeled(G_1,R_1,B_1); } } } void main(void) { ws2812_clear(); while(1) { WS2812_DIS(); delay_ms(50); } }