[问答]

外部中断，按这个键，别的按键中断为什么会有反应？

1364 key

问答对人有帮助，内容完整，我也想知道答案 0 我按加减的键，key的值会随机的发生改变，时钟调时老是不行，是哪里问题，各位大哥指点啊 void Systick_Handler(void){ num++;if(num==10){num=0;miao++;if(miao>=60){fen++;miao=0;if(fen>=60){ shi++; fen=0; if(shi>=24) { week++; ri++; shi=0; if(week>=8) { week=1; } GUI_Rectangle(96,126,128,174,0xffff,1); dis_32_48(96,126,week,(u16 )picture); if(ri>=32) { ri=1; month++; if(month>=13) { month=1; year++; if(year>=10000) { year=0; } year1=year/1000; year2=(year%1000)/100; year3=(year%100)/10; year4=(year%10); GUI_Rectangle(96,10,192,58,0xffff,1); dis_32_48(96,10,year1,(u16 )picture); dis_32_48(128,10,year2,(u16 )picture); dis_32_48(160,10,year3,(u16 )picture); dis_32_48(192,10,year4,(u16 )picture); } month1=month/10; month2=month%10; GUI_Rectangle(64,68,128,116,0xffff,1); dis_32_48(64,68,month1,(u16 )picture); dis_32_48(96,68,month2,(u16 )picture); } ri1=ri/10; ri2=ri%10; GUI_Rectangle(200,68,264,116,0xffff,1); dis_32_48(200,68,ri1,(u16 )picture); dis_32_48(232,68,ri2,(u16 )picture); } shi1=shi/10; shi2=shi%10; GUI_Rectangle(0,184,64,232,0xffff,1); dis_32_48(0,184,shi1,(u16 )picture); dis_32_48(32,184,shi2,(u16 )picture);}fen1=fen/10;fen2=fen%10;GUI_Rectangle(96,184,162,232,0xffff,1);dis_32_48(96,184,fen1,(u16 )picture);dis_32_48(128,184,fen2,(u16 )picture);}miao1=miao/10;miao2=miao%10;GUI_Rectangle(192,184,256,232,0xffff,1);dis_32_48(192,184,miao1,(u16 )picture);dis_32_48(224,184,miao2,(u16 )picture); }//num1=num/100; // num2=num/10;//num3=num%10;//GUI_Rectangle(144,34,192,58,0x0000,1);//zifu_16_24(144,34,num1,0x07e0); // zifu_16_24(160,34,num2,0x07e0);//zifu_16_24(176,34,num3,0x07e0); } void EXTI0_IRQHandler(void)//WA键，就是右键，keynum3{ Delay(0x2fff); if(EXTI_GetITStatus(EXTI_Line0) != RESET) { switch(key) { case 1:miao++;if(miao>=60)miao=0; miao1=miao/10; miao2=miao%10; GUI_Rectangle(192,184,256,232,0xffff,1); dis_32_48(192,184,miao1,(u16 )picture); dis_32_48(224,184,miao2,(u16 )picture);break; case 2:fen++;if(fen>=60)fen=0; fen1=fen/10; fen2=fen%10; GUI_Rectangle(96,184,162,232,0xffff,1); dis_32_48(96,184,fen1,(u16 )picture); dis_32_48(130,184,fen2,(u16 )picture); break; case 3:shi++;if(shi>=24)shi=0; shi1=shi/10; shi2=shi%10; GUI_Rectangle(0,184,64,232,0xffff,1); dis_32_48(0,184,shi1,(u16 )picture); dis_32_48(32,184,shi2,(u16 )picture); break; case 4:ri++;if(ri>=32)ri=1; ri1=ri/10; ri2=ri%10; GUI_Rectangle(200,68,264,116,0xffff,1); dis_32_48(200,68,ri1,(u16 )picture); dis_32_48(232,68,ri2,(u16 )picture); break; case 5:week++;if(week>=8)week=1; GUI_Rectangle(96,126,128,174,0xffff,1); dis_32_48(96,126,week,(u16 )picture); break; case 6:month++;if(month>=13)month=1; month1=month/10; month2=month%10; GUI_Rectangle(64,68,128,116,0xffff,1); dis_32_48(64,68,month1,(u16 )picture); dis_32_48(96,68,month2,(u16 )picture); break; case 7:year++;if(year>=10000)year=0; year1=year/1000; year2=(year%1000)/100; year3=(year%100)/10; year4=(year%10); GUI_Rectangle(96,10,192,58,0xffff,1); dis_32_48(96,10,year1,(u16 )picture); dis_32_48(128,10,year2,(u16 )picture); dis_32_48(160,10,year3,(u16 )picture); dis_32_48(192,10,year4,(u16 )picture); break; } EXTI_ClearFlag(EXTI_Line0); } }void EXTI9_5_IRQHandler(void)//user1键，下键，keynum4{ Delay(0x2ffff); if(EXTI_GetITStatus(EXTI_Line8) != RESET) { key++; if(key>=8) { key=0; } EXTI_ClearFlag(EXTI_Line8); } }void EXTI15_10_IRQHandler(void) //TAM键，左键，keynum1{ Delay(0x2ffff); if(EXTI_GetITStatus(EXTI_Line13) != RESET) { switch(key) { case 1:miao--;if(miao<0)miao=59; miao1=miao/10; miao2=miao%10; GUI_Rectangle(192,184,256,232,0xffff,1); dis_32_48(192,184,miao1,(u16 )picture); dis_32_48(224,184,miao2,(u16 )picture);break; case 2:fen--;if(fen<0)fen=59; fen1=fen/10; fen2=fen%10; GUI_Rectangle(96,184,160,232,0xffff,1); dis_32_48(96,184,fen1,(u16 )picture); dis_32_48(130,184,fen2,(u16 )picture); break; case 3:shi--;if(shi<0)shi=23; shi1=shi/10; shi2=shi%10; GUI_Rectangle(0,184,64,232,0xffff,1); dis_32_48(0,184,shi1,(u16 )picture); dis_32_48(32,184,shi2,(u16 )picture); break; case 4:ri--;if(ri<1)ri=31; ri1=ri/10; ri2=ri%10; GUI_Rectangle(200,68,264,116,0xffff,1); dis_32_48(200,68,ri1,(u16 )picture); dis_32_48(232,68,ri2,(u16 )picture); break; case 5:week--;if(week<1)week=7; GUI_Rectangle(96,126,128,174,0xffff,1); dis_32_48(96,126,week,(u16 )picture); break; case 6:month--;if(month<1)month=12; month1=month/10; month2=month%10; GUI_Rectangle(64,68,128,116,0xffff,1); dis_32_48(64,68,month1,(u16 )picture); dis_32_48(96,68,month2,(u16 )picture); break; case 7:year--;if(year<0)year=9999; year1=year/1000; year2=(year%1000)/100; year3=(year%100)/10; year4=(year%10); GUI_Rectangle(96,10,192,58,0xffff,1); dis_32_48(96,10,year1,(u16 )picture); dis_32_48(128,10,year2,(u16 )picture); dis_32_48(160,10,year3,(u16 )picture); dis_32_48(192,10,year4,(u16 *)picture); break; } EXTI_ClearFlag(EXTI_Line13); } } 0
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