- uint32_t *RGB;//颜色列表数组
- void LED_Init(void);
- void PWM_Init(void);
- uint32_t set_Color_Loop(uint8_t color_length);
- void out_RGB(uint16_t data_Max_Length,uint16_t colorwidth);
- int main(void)
- {
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
- uart_init(115200);
- delay_init();
- LED_Init();
-
- WS2812B_TIM_init();
- uint32_t len = set_Color_Loop(32);//每两种颜色之间的位数
-
- while(1)
- {
- out_RGB(len,8);//8个灯,每次输出8个数据
- delay_ms(80);
- }
- }
- /**
- * colorwidth 每次获取多少位
- */
- void out_RGB(uint16_t data_Max_Length,uint16_t colorwidth)
- {
- static uint32_t rgb_position = 0;
- for(uint32_t i = 0;i < colorwidth; i++){
- uint16_t c = (rgb_position + i) % data_Max_Length;//末尾颜色数据结束时将首位的收据填充到数组
- send_Data(RGB[c]);
- }
- rgb_position ++;
- rgb_position %= data_Max_Length;
- }
- /**
- * color_length 每种颜色渐变最大长度,总颜色长度:color_length * 3
- * return 颜色数据总长度
- */
- uint32_t set_Color_Loop(uint8_t color_length)
- {
- RGB = (uint32_t*)malloc(color_length*3*sizeof(uint32_t));//分配数组大小,(所有渐变色颜色长度)
- color_length -= 1;
- for(uint8_t i=0;i<=color_length;i++)
- {
- RGB[i] = (((0xff/color_length)*i)<<8)|((0xff/color_length)*(color_length-i)); //蓝到绿
- RGB[color_length + 1 +i] = (((0xff/color_length)*i)<<16)|((0xff/color_length)*(color_length-i))<<8; //绿到红
- RGB[((color_length+1)*2) +i] = ((0xff/color_length)*i)|((0xff/color_length)*(color_length-i))<<16; //红到蓝
- }
- return color_length*3;
- }
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