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没事研究WS2812驱动，千辛万苦的搞到能带到1024支WS2812了后发现51速度太慢了，WS2812超过200支即使用到30M时钟也满足不了要求，最后也懒得优化程序了，做个半成品时钟就全拆了。
单片机STC15W4K 的时钟24M 如果只做时钟6M即可 乱七八糟，见谅
#include "REG51.h"
#include "intrins.h"
#define u8 unsigned char
sfr P0M1 = 0x93;
sfr P0M0 = 0x94;
sfr P1M1 = 0x91;
sfr P1M0 = 0x92;
sfr P2M1 = 0x95;
sfr P2M0 = 0x96;
sfr P3M1 = 0xb1;
sfr P3M0 = 0xb2;
#define ulint unsigned long int//宏定义
#define uchar unsigned char//宏定义
#define uint unsigned int//宏定义
long int TM;//LCD显示变量
uchar h1,h2,h3,h4,h5,h6,h7;//LCD显示变量
sbit WS2812 = P0^4;
sbit K1 = P2^3;
sbit K2 = P2^4;
sbit K3 = P2^5;
sbit K4 = P2^6;
#define numLEDs 60
unsigned char buf_R[numLEDs] = {0};//颜色缓存
unsigned char buf_G[numLEDs] = {0};
unsigned char buf_B[numLEDs] = {0};
void timer_init(void);//定时器初始化
void ws2812_write_byte(u8 dat);
void Delay2000ms() //@24.000MHz
{
unsigned char i, j, k;
_nop_();
_nop_();
i = 183;
j = 100;
k = 225;
do
{
do
{
while (--k);
} while (--j);
} while (--i);
}
void HAL_Delay(unsigned int t)
{
unsigned int x,y;
for(x=114;x>0;x--)
for(y=t;y>0;y--);
}
//复位延时
void Delay50us() //@24.000MHz
{
unsigned char i, j;
i = 2;
j = 39;
do
{
while (--j);
} while (--i);
}
//发送24位数据
void Send_2811_24bits(unsigned char G8,unsigned char R8,unsigned char B8)
{
ws2812_write_byte(G8);
ws2812_write_byte(R8);
// ws2812_write_byte(G8);
// ws2812_write_byte(R8);
ws2812_write_byte(B8);
}
void ws2812_write_byte(u8 dat)
{
u8 i = 8;
dat <<= 1;
while(i)
{
WS2812 = 1;
_nop_();_nop_();_nop_();_nop_();_nop_(); _nop_(); //22.1184M //30M
WS2812 = CY;
_nop_();_nop_();_nop_();_nop_();_nop_(); _nop_();
WS2812 = 0;
dat <<= 1;
i--;
}
}
//复位码
void RGB_Rst()
{
WS2812 = 0;
Delay50us();
}
//把24位数据GRB码转RGB
void Set_Colour(unsigned char r,unsigned char g,unsigned char b)
{
// unsigned char i;
unsigned int i;
for(i=0;i<numLEDs;i++)
{
buf_R = r; //缓冲
buf_G = g;
buf_B = b;
}
for(i=0;i<numLEDs;i++)
{
Send_2811_24bits(buf_G,buf_R,buf_B);//发送显示
}
}
//某一个点显示的颜色
void SetPointColour(unsigned int num,unsigned char r,unsigned char g,unsigned char b)
{
// unsigned char i;
unsigned int i;
for(i=0;i<numLEDs;i++)
{
buf_R[num] = r;//缓冲
buf_G[num] = g;
buf_B[num] = b;
}
for(i=0;i<numLEDs;i++)
{
Send_2811_24bits(buf_G,buf_R,buf_B);//发送显示
}
}
//颜色交换24位不拆分发
//void SetPixelColor(unsigned char num,unsigned long c)
void SetPixelColor(unsigned int num,unsigned long c)
{
// unsigned char i;
unsigned int 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_2811_24bits(buf_G,buf_R,buf_B);
}
}
//复位
void PixelUpdate()
{
RGB_Rst();
}
//颜色
unsigned long Color(unsigned char r, unsigned char g, unsigned char b)
{
return ((unsigned long)r << 16) | ((unsigned long)g << 8) | b;
}
//颜色算法
unsigned long Wheel(unsigned char WheelPos)
{
WheelPos = 255 - WheelPos;
if(WheelPos < 85)
{
return Color(255 - WheelPos * 3, 0, WheelPos * 3);
}
if(WheelPos < 170) {
WheelPos -= 85;
return Color(0, WheelPos * 3, 255 - WheelPos * 3);
}
WheelPos -= 170;
return Color(WheelPos * 3, 255 - WheelPos * 3, 0);
}
//彩虹
void rainbow(unsigned int wait)
{
unsigned int i, j;
for(j=0; j<256; j++)
{
for(i=0; i<numLEDs; i++)
{
// SetPixelColor(i, Wheel((i+j) & 255));
SetPixelColor(i, Wheel((i*4+j) & 255));
}
PixelUpdate();
HAL_Delay(wait);
}
}
//稍微不同的是，这使得彩虹均匀分布
void rainbowCycle(unsigned int wait)
{
unsigned int i, j;
// for(j=0;j<256*5;j++)
for(j=0;j<256;j++)
{
for(i=0;i<numLEDs;i++)
{
// SetPixelColor(i, Wheel(((i * 256 / numLEDs) + j) & 255));
SetPixelColor(i, Wheel(((i * 2048 / numLEDs) + j) & 255));
}
PixelUpdate();
HAL_Delay (wait);
}
}
void theaterChase(unsigned long c, unsigned int wait)
{
int j,q;
unsigned int i;
for (j=0; j<10; j++)
{ //do 10 cycles of chasing 做10个循环
for (q=0; q < 3; q++)
{
for (i=0; i<numLEDs; i=i+3)
{
SetPixelColor(i+q, c); //turn every third pixel on 把每一个第三个像素
}
PixelUpdate();
HAL_Delay(wait);
for (i=0; i<numLEDs; i=i+3)
{
SetPixelColor(i+q, 0); //turn every third pixel off 把每一个第三个像素关掉
}
PixelUpdate();
}
}
}
void theaterChase2(unsigned long c, unsigned int wait)
{
int j,q;
unsigned int i;
for (j=0; j<10; j++)
{ //do 10 cycles of chasing 做10个循环
for (q=0; q < 2; q++)
{
for (i=0; i<numLEDs; i=i+2)
{
SetPixelColor(i+q, c); //turn every third pixel on 把每一个第三个像素
}
PixelUpdate();
HAL_Delay(wait);
for (i=0; i<numLEDs; i=i+2)
{
SetPixelColor(i+q, 0); //turn every third pixel off 把每一个第三个像素关掉
}
PixelUpdate();
}
}
}
//Theatre-style crawling lights with rainbow effect
//带有彩虹效果的戏剧式爬行灯
void theaterChaseRainbow(unsigned int wait)
{
int j,q;
unsigned int i;
for (j=0; j < 256; j++)
{ // cycle all 256 colors in the wheel 在轮子上循环所有256色
for (q=0; q < 3; q++)
{
for (i=0; i < numLEDs; i=i+3)
{
SetPixelColor(i+q, Wheel( (i+j) % 255)); //turn every third pixel off 把每一个第三个像素
}
PixelUpdate();
HAL_Delay(wait);
for (i=0; i < numLEDs; i=i+3)
{
SetPixelColor(i+q, 0); //turn every third pixel off 把每一个第三个像素关掉
}
}
}
}
void theaterChaseRainbow2(unsigned int wait)
{
int j,q;
unsigned int i;
for (j=0; j < 256; j++)
{ // cycle all 256 colors in the wheel 在轮子上循环所有256色
for (q=0; q < 2; q++)
{
for (i=0; i < numLEDs; i=i+2)
{
// SetPixelColor(i+q, Wheel( (i+j) % 255)); //turn every third pixel off 把每一个第三个像素
SetPixelColor(i+q, Wheel( (i*8+j) % 255)); //turn every third pixel off 把每一个第三个像素
}
PixelUpdate();
HAL_Delay(wait);
for (i=0; i < numLEDs; i=i+2)
{
SetPixelColor(i+q, 0); //turn every third pixel off 把每一个第三个像素关掉
}
}
}
}
// Fill the dots one after the other with a color
//用一种颜色填充这些圆点
void colorWipe(unsigned long c, unsigned int wait)
{
unsigned int i=0;
for( i=0; i<numLEDs; i++)
{
SetPixelColor(i, c);
PixelUpdate();
HAL_Delay(wait);
}
}
//单灯流水
void Watercolor(unsigned long c, unsigned int wait)
{
// unsigned char i=0;
unsigned int i=0;
for( i=0; i<numLEDs; i++)
{
SetPixelColor(i, c);
PixelUpdate();
HAL_Delay(wait*5);
SetPixelColor(i, 0);
PixelUpdate();
HAL_Delay(wait);
}
}
void timer_init(void)//定时器初始化 50MS
{
TMOD=0x01;/////////设置工作方式1
TH0=(65536-50000)/256;///////赋值
TL0=(65536-50000)%256;
EA=1;ET0=1;//开总中断；开定时器中断
TR0=1;////////启动计数器
}
void timer0()interrupt 1 //定时中断
{
TR0=0;
TH0=(65536-50000)/256;///////赋初值
TL0=(65536-50000)%256;
{
if(h4>39)
{
h4=0;
TM++;
h1=TM/720;
h2=TM%3600/60;
h3=TM%3600%60;
Set_Colour(0,0,0);
SetPointColour(h1,0,127,0); // grb
SetPointColour(h2,127,0,0); // grb
SetPointColour(h3,0,0,127); // grb
}
if(TM>43199)
{
TM=0;
}
h4++;
}
TR0=1;
}
void main()
{
P0M0 = 0xFF;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
colorWipe(0xff0000,0);
//Set_Colour(0,0,0); //一下全黑
colorWipe(0x000000,0); //彩虹7色
colorWipe(0xff7f00,0);
colorWipe(0x000000,0);
colorWipe(0xffff00,0);
colorWipe(0x000000,0);
colorWipe(0x00ff00,0);
colorWipe(0x000000,0);
colorWipe(0x00ffff,0);
colorWipe(0x000000,0);
colorWipe(0x0000ff,0);
colorWipe(0x000000,0);
colorWipe(0x8b00ff,0);
colorWipe(0x000000,0);
Set_Colour(0,0,0); //一下全黑
//SetPointColour(9,255,0,0); // grb
//SetPointColour(19,255,0,0); // grb
//SetPointColour(20,255,0,0); // grb
//SetPointColour(23,255,0,0); // grb
//SetPointColour(24,255,0,0); // grb
//SetPointColour(31,255,0,0); // grb
//SetPointColour(32,255,0,0); // grb
//SetPointColour(39,255,0,0); // grb
//SetPointColour(41,255,0,0); // grb
//SetPointColour(46,255,0,0); // grb
//SetPointColour(50,255,0,0); // grb
//SetPointColour(53,255,0,0); // grb
//SetPointColour(59,255,0,0); // grb
//SetPointColour(60,255,0,0); // grb
Delay2000ms();
Set_Colour(0,0,0);
timer_init();//定时器初始化
//Delay3000ms();
//rainbowCycle(0);
//Set_Colour(0,0,0);
h5=01;
h6=10;
h7=0;
TM=h5*3600+h6*60+h7;
while(1)
{
// Set_Colour(16,16,16);
// rainbow(0);
// rainbowCycle(0);
if(K1==0){
rainbow(45);//彩虹
Set_Colour(0,0,0); //一下全黑
}//彩虹
if(K2==0){
rainbowCycle(0);////稍微不同的是，这使得彩虹均匀分布;
Set_Colour(0,0,0); //一下全黑
}//彩虹
if(K3==0){
Watercolor(0xff0000, 255);//红色单灯流水
Watercolor(0x00ff00, 255);//绿色单灯流水
Watercolor(0x0000ff, 255);//蓝色单灯流水
Set_Colour(0,0,0); //一下全黑
}
if(K4==0){
colorWipe(0xff0000,0);
//Set_Colour(0,0,0); //一下全黑
colorWipe(0x000000,255); //彩虹7色
colorWipe(0xff7f00,0);
colorWipe(0x000000,0);
colorWipe(0xffff00,0);
colorWipe(0x000000,0);
colorWipe(0x00ff00,0);
colorWipe(0x000000,0);
colorWipe(0x00ffff,0);
colorWipe(0x000000,0);
colorWipe(0x0000ff,0);
colorWipe(0x000000,0);
colorWipe(0x8b00ff,0);
colorWipe(0x000000,0);
Set_Colour(0,0,0); //一下全黑
}
//Set_Colour(221,156,1);// 全屏颜色
// Watercolor(0xff0000, 0);//红色单灯流水
// HAL_Delay(1000);
// Watercolor(0x00ff00, 0);//绿色单灯流水
// HAL_Delay(1000);
// Watercolor(0x0000ff, 0);//蓝色单灯流水
// HAL_Delay(1000); ///延时是22m的 是多久 22M 0.17MS
//h4=6;
//SetPointColour(h2,255,0,0); // grb
// theaterChase(Color(55,0,0),0); // 必须3的倍数
// theaterChase2(Color(0,0,255),80); // Blue
//theaterChaseRainbow(0); //带有彩虹效果的戏剧式爬行灯
// colorWipe(0xff0000,0);
//Set_Colour(0,0,0); //一下全黑
// colorWipe(0x000000,0); //彩虹7色
// colorWipe(0xff7f00,0);
// colorWipe(0x000000,0);
// colorWipe(0xffff00,0);
// colorWipe(0x000000,0);
// colorWipe(0x00ff00,0);
// colorWipe(0x000000,0);
// colorWipe(0x00ffff,0);
// colorWipe(0x000000,0);
// colorWipe(0x0000ff,0);
// colorWipe(0x000000,0);
// colorWipe(0x8b00ff,0);
// colorWipe(0x000000,0);
//theaterChaseRainbow2(0);
}
}
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发表于 2020-4-20 14:35:05
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