2022年ps键盘程 .pdf

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1、【原创】ps2 键盘程序/=/ps/2 键盘读程序/IOB2:时钟线 clock 黑/IOA0:数据线 data 红/by quankun 08-07-12/测试通过，输入的字符可以通过mingling数组查看。/支持数字键，字母键，回车，空格，f1-f5，f12，不支持组合键。有需要的同学可以参考下。/bit.h 为端口位操作，在这论坛上有，可以搜一下。/=#include SPCE061A.h#include bit.h unsigned int keydata=0 x0000;unsigned char mingling3030;int minglingi=0,minglingj=0;i

2、nt eoflag=0;int fflag=0;int startflag=0;int busy=0;int weishu=0;unsigned int datatemp=0;int data11;unsigned int suanwancheng=0;/用于指示主程序中是否算完了0，1。用于主程序与中断名师资料总结-精品资料欢迎下载-名师精心整理-第 1 页，共 7 页 -unsigned int zongwancheng=0;unsigned int zanting=0;unsigned int minglingjzhi30;int shifti=0;unsigned char makec

3、ode47=0 x1c,0 x32,0 x21,0 x23,0 x24,0 x2b,0 x34,0 x33,0 x43,0 x3b,0 x42,0 x4b,0 x3a,0 x31,0 x44,0 x4d,0 x15,0 x2d,0 x1b,0 x2c,0 x3c,0 x2a,0 x1d,0 x22,0 x35,0 x1a,0 x45,0 x16,0 x1e,0 x26,0 x25,0 x2e,0 x36,0 x3d,0 x3e,0 x46,0 x70,0 x69,0 x72,0 x7a,0 x6b,0 x73,0 x74,0 x6c,0 x75,0 x7d;unsigned char ascc

4、ode47=a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5,6,7,8,9;int m=0,n=0;int main()/设置 IOA0 为上拉式电阻输入P0_Dir=P0_Dir&0 xfffe;P0_Attrib=P0_Attrib&0 xfffe;P0_0=1;/设置 IOB2 口为上拉式电阻输入外部中断P1_Dir=P1_Dir&0 xfffb;P1_Attrib=P1_Attrib&0 xfffb;P1_2=1;*P_INT_Ctrl=*P_INT_Ctrl|C_I

5、RQ3_EXT1;_asm(INT IRQ);*P_SystemClock=0 x0070;名师资料总结-精品资料欢迎下载-名师精心整理-第 2 页，共 7 页 -while(1)*P_Watchdog_Clear=0 x0001;void IRQ3(void)_attribute_(ISR);void IRQ3(void)if(*P_INT_Ctrl&C_IRQ3_EXT1)_asm(IRQ OFF);/关闭 IRQ 中断。keydata=0;weishu=0;while(1)if(P1_2=0)dataweishu=P0_0;datatemp=P0_0;/马上取得数据if(weishu0)

6、&(weishu9)keydata=keydata|(datatemp0)&(weishu9)keydata=keydata|(datatemp(weishu-1);名师资料总结-精品资料欢迎下载-名师精心整理-第 3 页，共 7 页 -weishu+;while(P1_2=0);if(weishu=11)break;*P_Watchdog_Clear=0 x0001;weishu=0;if(keydata=0 x00f0)while(1)if(P1_2=0)dataweishu=P0_0;weishu+;while(P1_2=0);if(weishu=11)break;*P_Watchdog

7、_Clear=0 x0001;weishu=0;else if(busy=0)if(keydata=0 x005a)if(minglingj=0)&minglingi)startflag=1;else if(minglingj)minglingjzhiminglingi=minglingj;minglingi+;minglingj=0;名师资料总结-精品资料欢迎下载-名师精心整理-第 4 页，共 7 页 -else if(keydata=0 x00e1)/判断是否是e1 for(m=0;m7;m+)while(1)if(P1_2=0)dataweishu=P0_0;weishu+;while(

8、P1_2=0);if(weishu=11)break;*P_Watchdog_Clear=0 x0001;weishu=0;else if(keydata=0 x00f0)/判断是否是f0 while(1)if(P1_2=0)dataweishu=P0_0;weishu+;while(P1_2=0);if(weishu=11)break;*P_Watchdog_Clear=0 x0001;weishu=0;名师资料总结-精品资料欢迎下载-名师精心整理-第 5 页，共 7 页 -else/以上都不符合，则是通码if(busy=1)if(keydata=0 x0076)zongwancheng=1

9、;else if(keydata=0 x0007)zanting=1;else switch(keydata)case 0 x005a:/enter if(minglingj=0)&minglingi)startflag=1;else if(minglingj)minglingjzhiminglingi=minglingj;minglingj=0;minglingi+;break;case 0 x0005:/f1 startflag=1;fflag=1;break;case 0 x0006:/f2 startflag=1;fflag=2;break;case 0 x0004:/f3 start

10、flag=1;fflag=3;case 0 x000c:/f4 startflag=1;fflag=4;break;case 0 x0003:/f5 startflag=1;fflag=5;break;case 0 x0066:/back if(minglingi&(minglingj=0)minglingi-=1;minglingj=minglingjzhiminglin名师资料总结-精品资料欢迎下载-名师精心整理-第 6 页，共 7 页 -gi;else if(minglingj)minglingj-;minglingminglingiminglingj=0;break;case 0 x0

11、029:/space minglingminglingiminglingj=0;minglingj+;break;default:/make code for(shifti=0;shifti47;shifti+)if(keydata=makecodeshifti)minglingminglingiminglingj=asccodeshifti;minglingj+;break;break;_asm(IRQ ON);*P_INT_Clear=C_IRQ3_EXT1;else if(*P_INT_Ctrl&C_IRQ3_EXT2)*P_INT_Clear=C_IRQ3_EXT2;else*P_INT_Clear=C_IRQ3_KEY;名师资料总结-精品资料欢迎下载-名师精心整理-第 7 页，共 7 页 -