[高三政史地]按键去抖--对按键输入的整数进行处理程序未加小数点.doc

/* FILE: key.c* Description: key process* * Copyright (c) 20032007 by WANG SHAOWEI. All Rights Reserved.* * History:* VersionName DateDescription 1.0Wang Shaowei2003/07/16Initial Version (MCU System) 2.0Wang Shaowei2005/06/01MS2 3.0Wang Shaowei2007/03/11MS3 */#include stm32f10x_lib.h#include stm32f10x_type.h #include common.h#includekey.h#define Short_keycounter 7 / u8 kk; U8 keycan; U8 m=0 ; U8 a10=0; /ma10 U32 temp1=0; U32 temp2=0; /temp1temp2U32 key_counter=0; /U8 t113=0;/tempcalculatevoid key_check(void) U8 linekeyNo; /,U8keycan; U8 checkkeyline(); U8 checkkeyrow(); / static U8 KeySave = 0;linekeyNo=checkkeyline(); if (linekeyNo!=0xff) keycan=checkkeyrow(); msg_send_msg(MSG_KEY, keycan); /MSG_SEND_MSG(MSG_KEY, keycan); /KeySave = KeyRead; /* Function Name : u8 checkkey* Description : check is the key has been push * Input : None* Output : None* Return : oxff(no key was push) or 0x00(No.1 line) 0x01(No.2 line) 0x02(No.3 line) 0x03(No.4 line)*/ u8 checkkeyline() GPIOA-ODR=0xfffffff0; if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_4)=0x00)return(0x00);else if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_5)=0x00)return(0x01);else if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_6)=0x00)return(0x02);else if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_7)=0x00)return(0x03);else return(0xff); /* Function Name : u8 checkkey* Description : check is the key has been push * Input : None* Output : None* Return : oxff(no key was push) or 0x00(No.1 line) 0x01(No.2 line) 0x02(No.3 line) 0x03(No.4 line)*/u8 checkkeyrow() u8 linenummber; linenummber=checkkeyline(); GPIOA-ODR=0xfffffffE; if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_4)=0x00)kk=(0x00+linenummber); if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_5)=0x00)kk=(0x00+linenummber); if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_6)=0x00)kk=(0x00+linenummber); if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_7)=0x00)kk=(0x00+linenummber); GPIOA-ODR=0xfffffffD; if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_4)=0x00)kk=(0x04+linenummber); if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_5)=0x00)kk=(0x04+linenummber); if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_6)=0x00)kk=(0x04+linenummber); if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_7)=0x00)kk=(0x04+linenummber);GPIOA-ODR=0xfffffffB; if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_4)=0x00)kk=(0x08+linenummber); if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_5)=0x00)kk=(0x08+linenummber); if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_6)=0x00)kk=(0x08+linenummber); if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_7)=0x00)kk=(0x08+linenummber);GPIOA-ODR=0xfffffff7; if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_4)=0x00)kk=(0x0C+linenummber); if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_5)=0x00)kk=(0x0C+linenummber); if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_6)=0x00)kk=(0x0C+linenummber); if(GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_7)=0x00)kk=(0x0C+linenummber);return (kk); void reset_temp(void) / u8 i=0,j=0; m=0; for(i=0;i10;i+) ai=0; /a10=0;for temp1=0; temp2=0; key_counter=0; for(j=0;j=Short_keycounter) am=0;/am=0showzifuam=0showzifu(m*8,0,am,0x03,255); m=m+1; key_counter=0; /showzifustr(m*8,0,0,0,255); break; case(0x01):/1 key_counter=key_counter+1;/showzifustr(m*8,0,1,0,255); if(key_counter=Short_keycounter) am=1;showzifu(m*8,0,am,0x03,255); m=m+1; key_counter=0; break;case(0x02):/2 key_counter=key_counter+1;/showzifustr(m*8,0,2,0,255); if(key_counter=Short_keycounter)am=2;showzifu(m*8,0,am,0x03,255); m=m+1; key_counter=0; break;case(0x03):/3 key_counter=key_counter+1;/showzifustr(m*8,0,3,0,255); if(key_counter=Short_keycounter) am=3;showzifu(m*8,0,am,0x03,255); m=m+1; key_counter=0; break;case(0x04):/4 key_counter=key_counter+1;/showzifustr(m*8,0,4,0,255); if(key_counter=Short_keycounter)am=4;showzifu(m*8,0,am,0x03,255); m=m+1; key_counter=0; break; case(0x05):/5 key_counter=key_counter+1;/showzifustr(m*8,0,5,0,255); if(key_counter=Short_keycounter)am=5;showzifu(m*8,0,am,0x03,255); m=m+1; key_counter=0; break;case(0x06):/6 key_counter=key_counter+1;/showzifustr(m*8,0,6,0,255); if(key_counter=Short_keycounter)am=6;showzifu(m*8,0,am,0x03,255); m=m+1; key_counter=0; break;case(0x07):/7 key_counter=key_counter+1;/showzifustr(m*8,0,6,0,255); if(key_counter=Short_keycounter)am=7;showzifu(m*8,0,am,0x03,255); m=m+1; key_counter=0; break;case(0x08):/8 key_counter=key_counter+1;/showzifustr(m*8,0,6,0,255); if(key_counter=Short_keycounter)am=8;showzifu(m*8,0,am,0x03,255); m=m+1; key_counter=0; break; case(0x09):/9 key_counter=key_counter+1;/showzifustr(m*8,0,6,0,255); if(key_counter=Short_keycounter)am=9;showzifu(m*8,0,am,0x03,255); m=m+1; key_counter=0; break;case(0x0A): /HZ calculate_temp1(); sprintf(t1,%-d,temp1); showzifustr(0,12,t1,0x03,255); showzifustr(80,12,HZ ,0x03,255); /GPIO break; case(0x0B):/KHZ calculate_temp1(); sprintf(t1,%-d,temp1); showzifustr(0,12,t1,0x03,255); showzifustr(80,12,KHZ,0x03,255); temp1=temp1*1000; /GPIObreak;/break/case(0x0C):/Decimal-./case(0x0D):/100HZ10KHZ100HZ /case(0x0E):/Backspacecase(0x0F):/ LCD_Clear(255,0);/LCD_Clear(255,0) reset_temp(); break;/default: /default:GPIOF-ODR=0x00000000; /*1HZ48ASCII0zifuASCII48void calculate_temp1 (void) /, switch(m) case 0: temp1=0; break; case 1: temp1=a0-48;/am*ASIIC48 break;case 2: temp1=(a1-48)+(a0-48)*10); break; case 3: temp1=(a2-48)+(a1-48)*10)+(a0-48)*100); break; case 4: temp1=(a3-48)+(a2-48)*10+(a1-48)*100+(a0-48)*1000; break; case 5: temp1=(a4-48)+(a3-48)*10+(a2-48)*100+(a1-48)*1000+(a0-48)*10000; break; case 6: temp1=(a5-48)+(a4-48)*10+(a3-48)*100+(a2-48)*1000+(a1-48)*10000+(a0-48)*100000; break; case 7: temp1=(a6-48)+(a5-48)*10+(a4-48)*100+(a3-48)*1000+(a2-48)*10000+(a1-48)*100000+(a0-48)*1000000