按鍵實(shí)現(xiàn)0~9999計數(shù)器 單片機(jī)

1、按鍵調(diào)節(jié)數(shù)碼管顯示功能:通過按鍵加減數(shù)碼管所顯示的數(shù)字按下k1加1,最大加到9999按下k2減1,最小減到0按下k3清零復(fù)位I;.:.:F-LJF*程耳為*丐/!& A 國+上 | 1川 I ” I . j|。5M5明minaTIW OOWWdoomPU i湖瀟 D th- ISISProfessronal (AnFindong)filt VIr*- Edit TonisOrsph Scjurte- Debug Librziiy Irmpljir System Help雨 電|毋5 函W +帝敝嚀整云，“陶,！的止|即I rMT aLihjXJwOUMl IlADIMTALuraSLAJJaa

2、i iuphC語言程序/名稱:按鍵調(diào)節(jié)數(shù)碼管顯示/功能:通過按鍵加減數(shù)碼管所顯示的數(shù)字/ 按下k1加1,最大加到9999/按下k2減1,最小減到0/按下k3清零復(fù)位/姓名:陳潤源/地點(diǎn)：內(nèi)江職業(yè)技術(shù)學(xué)院/時間:2019 年 4 月 6 日 21:40:41/#include #define uchar unsigned char#define uint unsigned intsbit k1 = P1*0;加sbit k2 = P1;減復(fù)位sbit k3 = P1 2;void key(void);void display(void);數(shù)組uchar code table = 0 xc0,0

3、xf9,0 xa4,0 xb0,0 x99, 0 x92,0 x82,0 xf8,0 x80,0 x90;char m=99,n=98;/顯示初值,m,n的值決定開機(jī)顯示數(shù)值/ / “ /個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個延時程序/ / “ /個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個void delayms(uint xms)uint i,j;for(i=xms;i0;i)for(j=110;j0;j-);/ /“/個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個

4、/顯示程序/ /“/個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個display(void)voidP2=0X08;P0=tablem%10;delayms(5);P2=0X04;P0=tablem/10;delayms(5);P2=0X02;P0=tablen%10;delayms(5);P2=0X01;P0=tablen/10;delayms(5);/顯示個位顯示十位顯示百位顯示千位/ /“/個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個按鍵處理/ /“ /個個個個個個個個個個個個個個個

5、個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個個void key()if(k1=0)delayms(10);if(k1=0)m+;if(m=100)/檢測按鍵是否被按下延時消抖/再次檢測是否真正按下按鍵/m自加一如果m加到100則n加一(限制m的取值范圍)個位、十位最大顯示99n+;/n 自加一m=0;使m又從0開始計數(shù)if(n=100)如果n加到100則m=n=99 (限制n的取值范圍)百位、千位最大顯示99m=99;最大顯示9999n=99;while(!k1);按鍵松開if(k2=0)/檢測按鍵是否被按下延時消抖delayms(10);/再次檢測是否真正按下按鍵if(k2=0)/m自減一m;if(m=0)如果m減到0則n減一(限制n的取值范圍)個位、十位最小顯示00m=99;/重新給m裝初值n;/n 自減一if(n=-1)如果n減到-1,則m=n=0 (限制n的取值范圍)百位、千位最小顯示00n=0;最小顯示0000m=0;while(!k2);/按鍵松開if(k3=0)/檢測按鍵是否被按下delayms(10);延時消抖if(k3=0)/再次檢測