mirror of
https://gitee.com/Lyon1998/pikapython.git
synced 2025-01-15 17:02:53 +08:00
68 lines
1.8 KiB
C
68 lines
1.8 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_poll.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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}sp_key_t;
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static sp_key_t spKey[] = {
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{SP_KEY_PRESS_KEY1,GPIOC,GPIO_PIN_7},
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{SP_KEY_PRESS_KEY2,GPIOC,GPIO_PIN_8},
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{SP_KEY_PRESS_KEY3,GPIOC,GPIO_PIN_9},
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{SP_KEY_PRESS_KEY4,GPIOA,GPIO_PIN_0},
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};
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ<EFBFBD><D1AF>ʼ<EFBFBD><CABC>
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void Key_PollInit(void)
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{
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GPIO_InitType GPIO_InitStructure;
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//<2F><><EFBFBD><EFBFBD>GPIO<49>˿<EFBFBD>ʱ<EFBFBD><CAB1>
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RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOA, ENABLE);
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RCC_EnableAPB2PeriphClk(RCC_APB2_PERIPH_GPIOC, 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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}
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}
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ
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sp_key_value_t Key_Poll(void)
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{
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for(uint8_t i = 0;i < ARRAY_SIZE(spKey);i++)
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{
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if(GPIO_ReadInputDataBit(spKey[i].GPIOx,spKey[i].Pin) == Bit_RESET)
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{
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//<2F><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
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Delay_Ms(KEY_SCAN_DELAY);
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if(GPIO_ReadInputDataBit(spKey[i].GPIOx,spKey[i].Pin) == Bit_RESET)
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{
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#ifdef SP_KEY_POLL_LOOSE_CHECK
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while(GPIO_ReadInputDataBit(spKey[i].GPIOx,spKey[i].Pin) == Bit_RESET) ;
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#endif
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return spKey[i].value;
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}
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}
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}
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return SP_KEY_PRESS_NONE;
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}
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