單片機24C02存儲多種花樣流水燈仿真電路+程序

ID:469417 · 發表于 2019-1-22 00:15

/***************標準源碼***************/
#include<reg51.h>
#include <intrins.h>
#define uchar unsigned char
#define uint    unsigned int

sbit sda = P2 ^ 1; //數據口定義
sbit scl = P2 ^ 0;

char code music[] = {//生日快樂譜
      0x11,0x05,0x11,0x05,0x12,0x0a,0x11,0x0a,0x14,0x0a,0x13,0x14,
0x11,0x05,0x11,0x05,0x12,0x0a,0x11,0x0a,0x15,0x0a,0x14,0x14,
      0x11,0x05,0x11,0x05,0x21,0x0a,0x16,0x0a,0x14,0x0a,0x13,0x0a,
      0x22,0x0a,0x17,0x05,0x17,0x05,0x16,0x0a,0x14,0x0a,0x15,0x0a,
      0x14,0x14,0x00,0x00
};

uchar data buffer[100];

void  delay(uint m) ;
void  nop();
void  delay1(uint m);
void  IIc_init();
void  start();
void  stop();
void  writebyte(uchar jad);
uchar readbyte();
void  ACK();
uchar read24c02(uchar spress) ;
void  write24c02(uchar spress, uchar info);

void main()
{
      uchar sp, i, j, m;
      IIc_init();
      P1 = 0X55;
      while (sp != sizeof(music))
      {
            write24c02(0x00 + sp, music[sp]);
            sp++;
            if (sp % 4 == 0)
                     P1 = ~P1;
      }
      P1 = 0X00;
}

void delay(uint m)
{
      uint n, p;
      for (n = m; n>0; n--)
            for (p = 125; p>0; p--);
}
void nop()
{
      _nop_();
      _nop_();
}

void delay1(uint m)
{
      uint n;
      for (n = 0; n<m; n++);
}

void IIc_init()
{
      scl = 1;
      nop();
      sda = 1;
      nop();
}

void start()
{
      sda = 1;
      nop();
      scl = 1;
      nop();
      sda = 0;
      nop();
      scl = 0;
      nop();
}

void stop() //停止I2C 總線
{
      sda = 0;
      nop();
      scl = 1;
      nop();
      sda = 1;
      nop();
}

void writebyte(uchar jad) //寫一個字節
{
      uchar i;
      scl = 0;
      for (i = 0; i<8; i++)
      {
            if(jad & 0x80)
            {
                     sda = 1;
            }
            else sda = 0;
            jad <<= 1;
            nop();
            scl = 1; //待sda 線上的數據穩定后　將scl 拉高
            nop();
            scl = 0; //待sda 線上的數據穩定后　將scl 拉高
            nop();
      }
      sda = 1;
      nop();
}
uchar readbyte() //讀一個字節
{
      uchar i, j, k ;
      scl = 0;
      nop();
      sda = 1;
      for (i = 0; i<8; i++)
      {
            nop();
            scl = 1;
            nop();
            if (sda == 1)
                     j = 1;
            else
                     j = 0;
            k = (k << 1) | j;
            scl = 0;
      }
      nop();
      return k;
}

void ACK() //應答函數
{
      uchar i = 0;
      scl = 1;
      nop();
      while ((sda == 1) && (i<255))
            i++;
      scl = 0;
      nop();
}

uchar read24c02(uchar spress)
{
      uchar i;
      start();
      writebyte(0xa0);
      ACK();
      writebyte(spress);
      ACK();
      start();
      writebyte(0xa1);
      ACK();
      i = readbyte();
      stop();
      delay1(100);
      return(i);
}

void write24c02(uchar spress, uchar info)
{
      start();
      writebyte(0xa0);
      ACK(); writebyte(spress);
      ACK();
      writebyte(info);
      ACK();
      stop();
      delay1(5000);
}

24c04音樂讀取與存儲.rar (8.64 KB, 下載次數: 34)

ID:472242 · 發表于 2019-2-7 01:30

不錯,真的很不錯!很有創造精神!支持你!

ID:452731 · 發表于 2019-2-7 22:15

很有創意！值得學習

帳號		自動登錄	找回密碼
密碼			立即注冊

久久久久久久999_99精品久久精品一区二区爱城_成人欧美一区二区三区在线播放_国产精品日本一区二区不卡视频_国产午夜视频_欧美精品在线观看免费

單片機24C02存儲多種花樣流水燈仿真電路+程序

評分

評分