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#include<stc15.h>
#include"intrins.h"
sbit WS2812 = P1^0;
#define numLEDs 36 //燈的個數
unsigned char buf_R[numLEDs] = {0};//顏色緩存
unsigned char buf_G[numLEDs] = {0};
unsigned char buf_B[numLEDs] = {0};
void RGB_Set_Up(); //送0碼
void RGB_Set_Down(); //送1碼
void HAL_Delay(unsigned long t)
{
unsigned int x,y;
for(x=114;x>0;x--)
for(y=t;y>0;y--);
}
//復位延時
void Delay50us() [url=]//@22.1184MHz[/url]
{
unsigned char i, j;
_nop_();
_nop_();
i = 2;
j = 15;
do
{
while (--j);
} while (--i);
}
//1碼，高電平850ns 低電平400ns 誤差正負150ns
void RGB_Set_Up()
{
WS2812 = 1;
//經過邏輯分析儀調試的的延時
_nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_();
_nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_();
WS2812 = 0;
}
//1碼，高電平400ns 低電平850ns 誤差正負150ns
void RGB_Set_Down()
{
WS2812 = 1;
//經過邏輯分析儀調試的的延時
_nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_();
WS2812 = 0;
}
//發送24位數據
void Send_2812_24bits(unsigned char G8,unsigned char R8,unsigned char B8)
{
unsigned int n = 0;
//發送G8位
for(n=0;n<8;n++)
{
G8<<=n;
if(G8&0x80 == 0x80)
{
RGB_Set_Up();
}
else
{
RGB_Set_Down();
}
}
//發送R8位
for(n=0;n<8;n++)
{
R8<<=n;
if(R8&0x80 == 0x80)
{
RGB_Set_Up();
}
else
{
RGB_Set_Down();
}
}
//發送B8位
for(n=0;n<8;n++)
{
B8<<=n;
if(B8&0x80 == 0x80)
{
RGB_Set_Up();
}
else
{
RGB_Set_Down();
}
}
}
//復位碼
void RGB_Rst()
{
WS2812 = 0;
Delay50us();
}
//顏色交換24位不拆分發
void SetPixelColor(unsigned char num,unsigned long c)
{
unsigned char i;
for(i=0;i<numLEDs;i++)
{
buf_R[num] = (unsigned char)(c>>16);
buf_G[num] = (unsigned char)(c>>8);
buf_B[num] = (unsigned char)(c);
}
for(i=0;i<numLEDs;i++)
{
Send_2812_24bits(buf_G[i],buf_R[i],buf_B[i]);
}
}
//復位
void PixelUpdate()
{
RGB_Rst();
}
// Fill the dots one after the other with a color
//用一種顏色填充這些圓點
void colorWipe(unsigned long c, unsigned int wait)
{
unsigned char i=0;
for( i=0; i<numLEDs; i++)
{
SetPixelColor(i, c);
PixelUpdate();
HAL_Delay(wait*5);
}
}
//單燈流水
void Watercolor(unsigned long c, unsigned int wait)
{
unsigned char i=0;
for( i=0; i<numLEDs; i++)
{
SetPixelColor(i, c);
PixelUpdate();
HAL_Delay(wait*5);
SetPixelColor(i, 0);
PixelUpdate();
HAL_Delay(wait);
}
}
void main()
{
while(1)
{
colorWipe(0xff0000,1); //紅色全亮
HAL_Delay(10000);
colorWipe(0xff00,1); //綠色全亮
HAL_Delay(10000);
colorWipe(0xff,1);//藍色全亮
HAL_Delay(10000);
colorWipe(0xffff00,1); //黃色全亮
HAL_Delay(10000);
colorWipe(0xffff,1); //青色全亮
HAL_Delay(10000);
colorWipe(0xff00ff,1); //紫色全亮
HAL_Delay(10000);
colorWipe(0xffffff,1); //白色全亮
HAL_Delay(10000);
colorWipe(0x00,1); //off
HAL_Delay(10000);
Watercolor(0xff0000, 100);//紅色單燈流水
HAL_Delay(1000);
Watercolor(0xff00, 100);//綠色單燈流水
HAL_Delay(1000);
Watercolor(0xff, 100);//藍色單燈流水
HAL_Delay(1000);
Watercolor(0xffff00, 100); //黃色單燈流水
HAL_Delay(1000);
Watercolor(0xffff, 100);//青色單燈流水
HAL_Delay(1000);
Watercolor(0xff00ff, 100); //紫色單燈流水
HAL_Delay(1000);
Watercolor(0xffffff, 100); //白色單燈流水
HAL_Delay(1000);
colorWipe(0x00,1); //off
HAL_Delay(10000);
colorWipe(0xff0000,100); //紅色逐個點亮
HAL_Delay(1000);
colorWipe(0x00,100); //0ff
HAL_Delay(1000);
colorWipe(0xff00,100); //綠色逐個點亮
HAL_Delay(1000);
colorWipe(0x00,100); //0ff
HAL_Delay(1000);
colorWipe(0xff,100);//藍色逐個點亮
HAL_Delay(1000);
colorWipe(0x00,100); //0ff
HAL_Delay(1000);
colorWipe(0xffff00,100); //黃色逐個點亮
HAL_Delay(1000);
colorWipe(0x00,100); //0ff
HAL_Delay(1000);
colorWipe(0xffff,100); //青色逐個點亮
HAL_Delay(1000);
colorWipe(0x00,100); //0ff
HAL_Delay(1000);
colorWipe(0xff00ff,100); //紫色逐個點亮
HAL_Delay(1000);
colorWipe(0x00,100); //0ff
HAL_Delay(1000);
colorWipe(0xffffff,100); //白色逐個點亮
HAL_Delay(1000);
colorWipe(0x00,100); //0ff
HAL_Delay(1000);
}
}

復制代碼

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