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/******************************************************************************
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* Copyright (C) 2014-2015 HangZhou SiZhu Co.,LTD.
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*
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*-----------------------------------------------------------------------------
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* File: KEY.c
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* Description: KEY scan code
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* Author: Lishoujian (867693272@qq.com)
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* Date: Jan 8, 2015
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*****************************************************************************/
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/* ----------------------- Platform includes --------------------------------*/
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#include "key.h"
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#include "delay.h"
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#include "stm32f10x_exti.h"
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/******************************************
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* func: Get_key
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* desc: scan key & return key data
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* input: none
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* output: none
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* return: key data 4bytes:
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* 4# 3# 2# 1# byte
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* | |KEY3|KEY2|KEY1|
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*****************************************/
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uint32 Get_key(void)
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{
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uint32 temp32a=0,temp32b=1;
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while(temp32a != temp32b)
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{
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temp32a = (KEY1 | (KEY2 << 8) | (KEY3 << 16));
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delay_ms(1);//È¥¶¶¶¯
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temp32b = (KEY1 | (KEY2 << 8) | (KEY3 << 16));
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}
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return(temp32a);
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}
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uint32 get_key4(void)
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{
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uint32 temp32a=0,temp32b=1;
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while(temp32a != temp32b)
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{
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temp32a = KEY4;
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delay_ms(1);//È¥¶¶¶¯
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temp32b = KEY4;
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}
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return(temp32a);
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}
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/******************************************
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* func: Get_key_count
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* desc:
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* input: none
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* output: none
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* return:
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*****************************************/
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/*
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u8 Get_key_count(u8 keybufs,u8 key_count)
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{
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uint32 key_stat=0;
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key_stat = Get_key(); //get key state
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if((key_stat) & 0xff) //°´¼ü°´Ï ËÉ¿ªÖ®ºó²ÅÄÜÉúЧÏÂÒ»´Î°´¼ü
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{
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if( !keybufs )
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{
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keybufs = 0x01;
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}
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}
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else
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{
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if( keybufs )
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{
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keybufs = 0x00;
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key_count++;
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if(key_count==11)
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{
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key_count = 0;
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}
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}
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}
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return key_count;
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} */
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void key_interruptinit_disable(void)
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{
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EXTI_InitTypeDef EXTI_InitStructure;
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// NVIC_InitTypeDef NVIC_InitStructure;
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// GPIO_InitTypeDef GPIO_InitStructure;
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// GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
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// GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
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// GPIO_Init(GPIOC, &GPIO_InitStructure);
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// NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
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// NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;
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// NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
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// NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
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// NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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// NVIC_Init(&NVIC_InitStructure);
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GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource7);
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EXTI_InitStructure.EXTI_Line = EXTI_Line7;
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EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
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EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
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EXTI_InitStructure.EXTI_LineCmd = DISABLE;
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EXTI_Init(&EXTI_InitStructure);
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}
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void key_interruptinit_enable(void)
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{
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EXTI_InitTypeDef EXTI_InitStructure;
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// NVIC_InitTypeDef NVIC_InitStructure;
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// GPIO_InitTypeDef GPIO_InitStructure;
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// GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
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// GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
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// GPIO_Init(GPIOC, &GPIO_InitStructure);
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// NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
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// NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;
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// NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
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// NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
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// NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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// NVIC_Init(&NVIC_InitStructure);
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GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource7);
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EXTI_InitStructure.EXTI_Line = EXTI_Line7;
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EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
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EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
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EXTI_InitStructure.EXTI_LineCmd = DISABLE;
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EXTI_Init(&EXTI_InitStructure);
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}
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void key_interruptinit(void)
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{
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EXTI_InitTypeDef EXTI_InitStructure;
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NVIC_InitTypeDef NVIC_InitStructure;
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GPIO_InitTypeDef GPIO_InitStructure;
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
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GPIO_Init(GPIOC, &GPIO_InitStructure);
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NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
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NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource7);
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EXTI_InitStructure.EXTI_Line = EXTI_Line7;
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EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
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EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
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EXTI_InitStructure.EXTI_LineCmd = ENABLE;
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EXTI_Init(&EXTI_InitStructure);
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}
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