mirror of
https://gitee.com/Lyon1998/pikapython.git
synced 2025-01-22 17:12:55 +08:00
100 lines
3.2 KiB
C
100 lines
3.2 KiB
C
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/***********************************************
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ذ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ
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--20210409 Magnin <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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************************************************/
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/**************<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>***************
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KEY1 -------------------------- PC7
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KEY2 -------------------------- PC8
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KEY3 -------------------------- PC9
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KEY4 -------------------------- PA0
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***********************************************/
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#include "key_exti.h"
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#include "share.h"
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#include "cm32m101a_conf.h"
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#define KEY_SCAN_DELAY 100 //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱʱ<CAB1><CAB1>
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typedef struct{
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sp_key_value_t value;
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GPIO_Module* GPIOx;
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uint16_t Pin;
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uint8_t PortSource;
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uint8_t PinSource;
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uint32_t EXTI_Line;
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uint8_t NVIC_IRQChannel;
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}sp_key_t;
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static sp_key_t spKey[] = {
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{SP_KEY_PRESS_KEY1, GPIOC, GPIO_PIN_7, GPIOC_PORT_SOURCE, GPIO_PIN_SOURCE7, EXTI_LINE7, EXTI9_5_IRQn},
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{SP_KEY_PRESS_KEY2, GPIOC, GPIO_PIN_8, GPIOC_PORT_SOURCE, GPIO_PIN_SOURCE8, EXTI_LINE8, EXTI9_5_IRQn},
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{SP_KEY_PRESS_KEY3, GPIOC, GPIO_PIN_9, GPIOC_PORT_SOURCE, GPIO_PIN_SOURCE9, EXTI_LINE9, EXTI9_5_IRQn},
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{SP_KEY_PRESS_KEY4, GPIOA, GPIO_PIN_0, GPIOA_PORT_SOURCE, GPIO_PIN_SOURCE0, EXTI_LINE0, EXTI0_IRQn},
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};
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static sp_key_value_t keyValue =SP_KEY_PRESS_NONE;
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//<2F><><EFBFBD><EFBFBD><EFBFBD>жϳ<D0B6>ʼ<EFBFBD><CABC>
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void Key_ExtiInit(void)
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{
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GPIO_InitType GPIO_InitStructure;
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EXTI_InitType EXTI_InitStructure;
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NVIC_InitType NVIC_InitStructure;
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//<2F><><EFBFBD><EFBFBD>GPIO<49>˿<EFBFBD>ʱ<EFBFBD>Ӻ<D3BA><CDB8><EFBFBD>ʱ<EFBFBD><CAB1>
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RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOA| RCC_APB2_PERIPH_AFIO, ENABLE);
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RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOC| RCC_APB2_PERIPH_AFIO, ENABLE);
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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GPIO_InitStructure.GPIO_Pull = GPIO_Pull_Up; //<2F><><EFBFBD><EFBFBD>
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Input; //<2F><><EFBFBD><EFBFBD>
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for(uint8_t i = 0;i < ARRAY_SIZE(spKey);i++)
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{
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GPIO_InitStructure.Pin = spKey[i].Pin;
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GPIO_InitPeripheral(spKey[i].GPIOx, &GPIO_InitStructure);
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GPIO_ConfigEXTILine(spKey[i].PortSource, spKey[i].PinSource);
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/*key EXTI line*/
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EXTI_InitStructure.EXTI_Line = spKey[i].EXTI_Line;
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EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
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EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; // <20>½<EFBFBD><C2BD>ش<EFBFBD><D8B4><EFBFBD>
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EXTI_InitStructure.EXTI_LineCmd = ENABLE;
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EXTI_InitPeripheral(&EXTI_InitStructure);
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/*interrupt priority*/
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NVIC_InitStructure.NVIC_IRQChannel = spKey[i].NVIC_IRQChannel;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x05;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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}
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}
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ
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sp_key_value_t Key_GetValue(void)
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{
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sp_key_value_t value = keyValue;
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keyValue =SP_KEY_PRESS_NONE;
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return value;
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}
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//<2F>ⲿ<EFBFBD>ж<EFBFBD><D0B6><EFBFBD>0<EFBFBD><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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void EXTI0_IRQHandler(void)
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{
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if(RESET != EXTI_GetITStatus(spKey[3].EXTI_Line)) //<2F><>ȡ<EFBFBD>ⲿ<EFBFBD>ж<EFBFBD><D0B6><EFBFBD>״̬
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{
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if(GPIO_ReadInputDataBit(spKey[3].GPIOx,spKey[3].Pin) == Bit_RESET) keyValue = spKey[3].value;
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EXTI_ClrITPendBit(spKey[3].EXTI_Line); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־
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}
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}
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//<2F>ⲿ<EFBFBD>ж<EFBFBD><D0B6><EFBFBD>5<EFBFBD><35>9<EFBFBD><39><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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void EXTI9_5_IRQHandler(void)
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{
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for(uint8_t i = 0;i < 3; i++)
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{
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if(RESET != EXTI_GetITStatus(spKey[i].EXTI_Line))
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{
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if(GPIO_ReadInputDataBit(spKey[i].GPIOx,spKey[i].Pin) == Bit_RESET) keyValue = spKey[i].value;
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EXTI_ClrITPendBit(spKey[i].EXTI_Line);
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}
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}
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}
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