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SmartPillBoxes/HARDWARE/KEY/key.c

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/******************** (C) COPYRIGHT 2013 CEPARK<EFBFBD>๦<EFBFBD>ܿ<EFBFBD><EFBFBD><EFBFBD>ѧϰ<EFBFBD><EFBFBD>********************
* <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD>key4x4.c
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* ʵ<EFBFBD><EFBFBD>ƽ̨<EFBFBD><EFBFBD>CEPARK<EFBFBD>๦<EFBFBD>ܿ<EFBFBD><EFBFBD><EFBFBD>ѧϰ<EFBFBD><EFBFBD>
* Ӳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD>-------------------------
* | PB8 - H4 |
* | PB9 - H3 |
* | PB10 - H2 |
* | PB11 - H1 |
* | PB12 - L4 |
* | PB13 - L3 |
* | PB14 - L2 |
* | PB15 - L1 |
* -------------------------
* <EFBFBD><EFBFBD>汾 <EFBFBD><EFBFBD>ST3.5.0
**********************************************************************************/
#include "key.h"
#include "delay.h"
/*
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Key_GPIO_Config
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ð<EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD>I/O<EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
void Key4x4_GPIO_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/*<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˿ڵ<EFBFBD>ʱ<EFBFBD><EFBFBD>*/
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOA,ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5 ;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_10 | GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
u8 Key_Scan(void)
{
u16 temp;
u8 ucBackValue=16;
//====ɨ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>==========
PBout(1) = 0;
PBout(0) = 1;
PBout(10) = 1;
PBout(11) = 1;
temp=GPIO_ReadInputData(GPIOA); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵõ<EFBFBD><EFBFBD><EFBFBD>ֵ
temp=temp&0x003c; //<EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD>4λ
if (temp!=0x003c) //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>4λ<EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>1
{
delay_ms(20); // <EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD>
temp=GPIO_ReadInputData(GPIOA);
temp=temp&0x003c;
if (temp!=0x003c) //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٴθ<EFBFBD>4λȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ1
{
temp=GPIO_ReadInputData(GPIOA)&0x003c; //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˴ΰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
switch(temp)
{
case 0x0038:
ucBackValue = 12;break;
case 0x0034:
ucBackValue = 13;break;
case 0x002c:
ucBackValue = 14;break;
case 0x001c:
ucBackValue = 15;break;
default:break;
}
while(temp!=0x003c) //<EFBFBD>ȴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ſ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD>
{
temp=GPIO_ReadInputData(GPIOA);
temp=temp&0x003c;
}
}
}
//====<EFBFBD>ڶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0==========
PBout(1) = 1;
PBout(0) = 0;
PBout(10) = 1;
PBout(11) = 1;
temp=GPIO_ReadInputData(GPIOA); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵõ<EFBFBD><EFBFBD><EFBFBD>ֵ
temp=temp&0x003c; //<EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD>4λ
if (temp!=0x003c) //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>4λ<EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>1
{
delay_ms(20); // <EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD>
temp=GPIO_ReadInputData(GPIOA);
temp=temp&0x003c;
if (temp!=0x003c) //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٴθ<EFBFBD>4λȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ1
{
temp=GPIO_ReadInputData(GPIOA)&0x003c; //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˴ΰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
switch(temp)
{
case 0x0038:
ucBackValue = 3; break;
case 0x0034:
ucBackValue = 6; break;
case 0x002c:
ucBackValue = 9; break;
case 0x001c:
ucBackValue = 11; break;
default:break;
}
while(temp!=0x003c) //<EFBFBD>ȴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ſ<EFBFBD>
{
temp=GPIO_ReadInputData(GPIOA);
temp=temp&0x003c;
}
}
}
//====<EFBFBD><EFBFBD>3<EFBFBD><EFBFBD><EFBFBD><EFBFBD>0==========
PBout(1) = 1;
PBout(0) = 1;
PBout(10) = 0;
PBout(11) = 1;
temp=GPIO_ReadInputData(GPIOA); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵõ<EFBFBD><EFBFBD><EFBFBD>ֵ
temp=temp&0x003c; //<EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD>4λ
if (temp!=0x003c) //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>4λ<EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>1
{
delay_ms(20); // <EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD>
temp=GPIO_ReadInputData(GPIOA);
temp=temp&0x003c;
if (temp!=0x003c) //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٴθ<EFBFBD>4λȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ1
{
temp=GPIO_ReadInputData(GPIOA)&0x003c; //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˴ΰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
switch(temp)
{
case 0x0038:
ucBackValue = 1; break;
case 0x0034:
ucBackValue = 4; break;
case 0x002c:
ucBackValue = 7; break;
case 0x001c:
ucBackValue = 10; break;
default:break;
}
while(temp!=0x003c) //<EFBFBD>ȴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ſ<EFBFBD>
{
temp=GPIO_ReadInputData(GPIOA);
temp=temp&0x003c;
}
}
}
//====<EFBFBD><EFBFBD>4<EFBFBD><EFBFBD><EFBFBD><EFBFBD>0==========
PBout(1) = 1;
PBout(0) = 1;
PBout(10) = 1;
PBout(11) = 0;
temp=GPIO_ReadInputData(GPIOA); //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵõ<EFBFBD><EFBFBD><EFBFBD>ֵ
temp=temp&0x003c; //<EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD>4λ
if (temp!=0x003c) //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>4λ<EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>1
{
delay_ms(20); // <EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD>
temp=GPIO_ReadInputData(GPIOA);
temp=temp&0x003c;
if (temp!=0x003c) //<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٴθ<EFBFBD>4λȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ1
{
temp=GPIO_ReadInputData(GPIOA)&0x003c;
switch(temp)
{
case 0x0038:
ucBackValue = 2; break;
case 0x0034:
ucBackValue = 5; break;
case 0x002c:
ucBackValue = 8; break;
case 0x001c:
ucBackValue = 0; break;
default:break;
}
while(temp!=0x003c) //<EFBFBD>ȴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ſ<EFBFBD>
{
temp=GPIO_ReadInputData(GPIOA);
temp=temp&0x003c;
}
}
}
return ucBackValue;
}