51單片機(jī)8x8點(diǎn)陣顯示程序參考

1、本程序用的是51單片機(jī)控制8*8點(diǎn)陣顯示I （心形）U#in clude<reg52.h>#defi ne uint un sig ned int#defi ne uchar un sig ned char使用的IO 口要根據(jù)自己接在單片機(jī)里的情況來更改sbit RCK = P3八6; /聲明串行輸出存儲(chǔ)鎖存線 RCKsbit SCK = P3A5; /聲明串行數(shù)據(jù)輸入時(shí)鐘線 SCKsbit SER = P3A4; /聲明串行數(shù)據(jù)輸入線 SERsbit HC = P0A0;聲明C信號(hào)接口sbit HB = P0A1;聲明B信號(hào)接口sbit HA = P0A2;聲明A信號(hào)接口#def

2、i ne ROW1 HC =0; HB =0; HA = 0>定義使能第1行#defi ne ROW2 HC =0; HB =0; HA = 1;定義使能第2行#defi ne ROW3 HC =0; HB =1; HA = 0>定義使能第3行#defi ne ROW4 HC =0; HB =1; HA = 1;定義使能第4行#defi ne ROW5 HC =1; HB =0; HA = 0>定義使能第5行#defi ne ROW6 HC =1; HB =0; HA = 1;定義使能第6行#defi ne ROW7 HC =1; HB =1; HA = 0>定義使能第

3、7行#defi ne ROW8 HC =1; HB =1; HA = 1;定義使能第8行uchar h;顯示數(shù)據(jù)，可以用取模軟件來獲取uchar iloveu = 0x00,0x3C,0x18,0x18,0x18,0x18,0x3C,0x00,0x00,0x36,0x7F,0x7F,0x3E,0x1C,0x08,0x00,0x00,0x22,0x22,0x22,0x22,0x22,0x1C,0x00,0x10,0x30,0x10,0x10,0x10,0x10,0x38,0x00,0x7C,0x08,0x10,0x08,0x04,0x44,0x38,0x00,0x10,0x30,0x10,0x1

4、0,0x10,0x10,0x38,0x00,0x08,0x18,0x28,0x48,0x7C,0x08,0x08,0x00;void delay(uint z) /延時(shí)函數(shù)，單位 ms uint i, j;for(i =乙 i > 0; i-)for(j = 110; j > 0; j-);void ROW()行驅(qū)動(dòng)函數(shù)switch(h)case 0: R0W1;break;case 1: ROW2;break;case 2: R0W3;break;case 3: R0W4;break;case 4: ROW5;break;case 5: ROW6;break;case 6: RO

5、W7;break;case 7: ROW8;break;RCK = 1;595輸出存儲(chǔ)器鎖存移位寄存器中的狀態(tài)值RCK = 0;/595輸出存儲(chǔ)器狀態(tài)保持 void in_data(uchar n) /數(shù)據(jù)打入 74HC595 函數(shù) uchar x,y;y = n;for(x = 8; x > 0; x-)if(y& 0x01)特別注意先打入的是高位對(duì)應(yīng)第 8列，最后打入低位對(duì)應(yīng)第1列SER = 1;elseSER = 0;y = y>>1;對(duì)應(yīng)先高位后對(duì)位應(yīng)往右移位數(shù)據(jù)SCK = 0; /時(shí)鐘接低，準(zhǔn)備下一次讀取數(shù)據(jù)SCK = 1; 595芯片讀取數(shù)據(jù) void m

6、ai n(void)uchar m, in 56, n;RCK = 0;/清零鎖存線SCK = 0;/清零時(shí)鐘線賦值運(yùn)算，保護(hù)原始數(shù)據(jù)for(h = 0; h < 56; h+) inh = iloveuh;while(1)for(m = 18; m> 0; m-) for(h = 0; h < 8; h+)in_data(i nh);ROW();delay(1);左移for(h = 0; h < 8; h+)if(i nh&0x80)m = 1;/預(yù)先保存第一位數(shù)據(jù)elsem = 0;for(n 二 0; n < 6; n+)if(inh+8*n+8&0x80)沒有改變 inh+8的值inh+8*n = (inh+8*n<<1) + 1; / 循環(huán)左移思想elseinh+8*