{"id":66611,"date":"2026-01-27T00:25:01","date_gmt":"2026-01-26T16:25:01","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/66611.html"},"modified":"2026-01-27T00:25:01","modified_gmt":"2026-01-26T16:25:01","slug":"%e5%85%b3%e4%ba%8e%e5%8d%95%e7%89%87%e6%9c%ba%e6%8c%89%e9%94%ae%e9%9d%9e%e9%98%bb%e5%a1%9e%e6%96%b9%e5%bc%8f%e8%a7%a6%e5%8f%91%e7%9a%84%e4%b8%80%e7%a7%8d%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/66611.html","title":{"rendered":"\u5173\u4e8e\u5355\u7247\u673a\u6309\u952e\u975e\u963b\u585e\u65b9\u5f0f\u89e6\u53d1\u7684\u4e00\u79cd\u65b9\u6cd5"},"content":{"rendered":"

\u5173\u4e8e\u5355\u7247\u673a\u6309\u952e\u975e\u963b\u585e\u68c0\u6d4b\u7684\u4e00\u79cd\u65b9\u6cd5<\/h2>\n

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\u4e0b\u9762，\u662f\u4e00\u4e2a\u5229\u7528\u72b6\u6001\u673a\u5b9e\u73b0\u6309\u952e\u7684\u975e\u963b\u585e\u68c0\u6d4b\u6548\u679c\u7684\u4ee3\u7801\u3002\u5206\u4e24\u4e2a\u5e73\u53f0\u5b9e\u73b0，\u4e00\u4e2a\u662f\u6770\u91cc\u7684AC791N\u7cfb\u5217\u82af\u7247，\u4e00\u4e2a\u662fSTM32F429IGT6\u82af\u7247，\u800cSTM\u7cfb\u5217\u6211\u662f\u57fa\u4e8e\u6b63\u70b9\u539f\u5b50\u7684\u963f\u6ce2\u7f57\u5f00\u53d1\u677f\u5b9e\u73b0\u7684\u3002<\/p>\n

\u6770\u91ccAC791N\u5229\u7528\u72b6\u6001\u673a\u5b9e\u73b0\u6309\u952e\u7684\u975e\u963b\u585e\u68c0\u6d4b<\/h3>\n

\u63d0\u793a：\u4e0d\u662f\u7528AC791N\u7cfb\u5217\u82af\u7247\u7684\u53ef\u76f4\u63a5\u8df3\u8fc7！！！<\/font><\/p>\n

key.h\u7684\u914d\u7f6e\u5982\u4e0b：<\/p>\n

#<\/span>ifndef<\/span> __KEY_H_<\/span><\/span>
\n#<\/span>define<\/span> __KEY_H_<\/span><\/span><\/p>\n

#<\/span>define<\/span> KEY_GPIO_EN<\/span> (<\/span>1<\/span>)<\/span><\/span>\/* GPIO\u6309\u952e\u4f7f\u80fd 0:\u5173\u95ed 1:\u6253\u5f00 *\/<\/span><\/span>
\n#<\/span>define<\/span> CFG_HW_GPIOKEY_NUM<\/span> (<\/span>2<\/span>)<\/span><\/span>\/* GPIO\u6309\u952e\u6570\u91cf *\/<\/span><\/span><\/p>\n

enum<\/span> APP_KEY_CODE_T<\/span> {<\/span>
\n APP_KEY_CODE_FN1 =<\/span> 0x00<\/span>,<\/span>
\n APP_KEY_CODE_FN2,<\/span>
\n}<\/span>;<\/span><\/p>\n

\/\/ \u6309\u952e\u4e8b\u4ef6\u679a\u4e3e<\/span>
\ntypedef<\/span> enum<\/span>{<\/span>
\nAPP_KEY_DEFAULE_EVENT =<\/span> 0<\/span>,<\/span>
\nAPP_KEY_LONGPRESS_EVENT,<\/span>
\nAPP_KEY_LONGLONGPRESS_EVENT,<\/span>
\nAPP_KEY_FACTORY_EVENT,<\/span>
\nAPP_KEY_UP_AFTER_LONGPRESS_EVENT,<\/span>
\nAPP_KEY_UP_AFTER_LONGLONGPRESS_EVENT,<\/span>
\nAPP_KEY_CLICK_EVENT,<\/span>
\nAPP_KEY_DOUBLECLICK_EVENT,<\/span>
\nAPP_KEY_TRIPLECLICK_EVENT,<\/span>
\nAPP_KEY_FOURTHCLICK_EVENT,<\/span>
\nAPP_KEY_FIFTHCLICK_EVENT,<\/span>
\nAPP_KEY_SIXTHCLICK_EVENT,<\/span>
\nAPP_KEY_EVENT_NUM =<\/span> APP_KEY_SIXTHCLICK_EVENT,<\/span>
\n}<\/span>APP_KEY_EVENT_T;<\/span><\/p>\n

\/\/ \u6309\u952e\u72b6\u6001\u679a\u4e3e<\/span>
\ntypedef<\/span> enum<\/span>{<\/span>
\nAPP_KEY_DEFAULE_STATUS =<\/span> 0<\/span>,<\/span>
\nAPP_KEY_DITHER_STATUS,<\/span>
\nAPP_KEY_DOWN_STATUS,<\/span>
\nAPP_KEY_LONGPRESS_WAIT_RELEASE_STATUS,<\/span>
\nAPP_KEY_INTERVAL_DEAL_STATUS,<\/span>
\nAPP_KEY_STATE_NUM =<\/span> APP_KEY_INTERVAL_DEAL_STATUS
\n}<\/span>APP_KEY_STATE_T;<\/span><\/p>\n

#<\/span>endif<\/span><\/span><\/p>\n

key.c\u5982\u4e0b\u4ee3\u7801：<\/p>\n

#<\/span>include<\/span> "system\/includes.h"<\/span><\/span>
\n#<\/span>include<\/span> "asm\/gpio.h"<\/span><\/span>
\n#<\/span>include<\/span> "app_config.h"<\/span><\/span>
\n#<\/span>include<\/span> "storage_device.h"<\/span><\/span>
\n#<\/span>include<\/span> "generic\/log.h"<\/span><\/span>
\n#<\/span>include<\/span> "os\/os_api.h"<\/span><\/span>
\n#<\/span>include<\/span> "event\/key_event.h"<\/span><\/span>
\n#<\/span>include<\/span> "event\/device_event.h"<\/span><\/span>
\n#<\/span>include<\/span> "event\/net_event.h"<\/span><\/span>
\n#<\/span>include<\/span> "fs\/fs.h"<\/span><\/span>
\n#<\/span>include<\/span> "asm\/pwm.h"<\/span><\/span>
\n#<\/span>include<\/span> "device\/device.h"<\/span><\/span>
\n#<\/span>include<\/span> "key.h"<\/span><\/span><\/p>\n

#<\/span>define<\/span> TIMER_PERIOD<\/span> 10<\/span> <\/span>\/\/ \u6309\u952e\u626b\u63cf\u65f6\u95f4<\/span><\/span><\/p>\n

#<\/span>define<\/span> KEY_DEBOUNCE_INTERVAL_MS<\/span> 20<\/span> <\/span>\/\/ \u6d88\u6296\u65f6\u95f4 <\/span><\/span><\/p>\n

#<\/span>define<\/span> KEY_LONGPRESS_THRESHOLD_MS<\/span>3000<\/span> <\/span>\/\/ \u957f\u6309\u4e8b\u4ef6\u89e6\u53d1\u65f6\u95f4<\/span><\/span><\/p>\n

#<\/span>define<\/span> KEY_LONGLONGPRESS_THRESHOLD_MS<\/span>6000<\/span> <\/span>\/\/ \u957f\u957f\u6309\u4e8b\u4ef6\u89e6\u53d1\u65f6\u95f4<\/span><\/span><\/p>\n

#<\/span>define<\/span> KEY_CHECKER_INTERVAL_MS<\/span> 400<\/span> <\/span>\/\/ \u591a\u51fb\u89e6\u53d1\u65f6\u95f4\u95f4\u9694<\/span><\/span><\/p>\n

\/\/ \u6309\u952e\u89e6\u53d1\u914d\u7f6e<\/span>
\ntypedef<\/span> enum<\/span>{<\/span>
\nMX_KEY_PULLUP_CONFIG =<\/span> 0X00<\/span>,<\/span>
\nMX_KEY_PULLDOWN_CONFIG =<\/span> 0X01<\/span>,<\/span>
\n}<\/span>MX_KEY_CONFIG;<\/span><\/p>\n

\/\/ \u6309\u952e\u89e6\u53d1\u503c<\/span>
\nenum<\/span> HAL_KEY_GPIOKEY_VAL_T<\/span> {<\/span>
\n HAL_KEY_GPIOKEY_VAL_LOW =<\/span> 0<\/span>,<\/span>
\n HAL_KEY_GPIOKEY_VAL_HIGH,<\/span>
\n}<\/span>;<\/span><\/p>\n

\/\/ \u6309\u952eIO\u53e3\u914d\u7f6e<\/span>
\ntypedef<\/span> struct<\/span> {<\/span>
\nuint8_t<\/span> port;<\/span>
\nMX_KEY_CONFIG config;<\/span>
\n}<\/span>MX_KEY_IO_CONFIG;<\/span><\/p>\n

\/\/ \u5355\u4e2a\u6309\u952e\u7684\u6240\u6709\u914d\u7f6e<\/span>
\ntypedef<\/span> struct<\/span> HAL_KEY_GPIOKEY_CFG<\/span> {<\/span>
\n MX_KEY_IO_CONFIG key_config;<\/span>
\n enum<\/span> HAL_KEY_GPIOKEY_VAL_T<\/span> key_down;<\/span>
\nAPP_KEY_STATE_T status;<\/span>
\nAPP_KEY_EVENT_T event;<\/span>
\nint<\/span> timer_count;<\/span>
\n}<\/span>HAL_KEY_GPIOKEY_CFG_T;<\/span><\/p>\n

\/\/ \u6309\u952e\u914d\u7f6e\u521d\u59cb\u5316<\/span>
\nHAL_KEY_GPIOKEY_CFG_T gpio_key_cfg[<\/span>CFG_HW_GPIOKEY_NUM]<\/span> =<\/span> {<\/span>
\n{<\/span>{<\/span>IO_PORTA_09,<\/span>MX_KEY_PULLUP_CONFIG,<\/span>NULL<\/span>}<\/span>,<\/span>HAL_KEY_GPIOKEY_VAL_LOW,<\/span>APP_KEY_DEFAULE_STATUS,<\/span>APP_KEY_DEFAULE_EVENT,<\/span>0<\/span>}<\/span>,<\/span>
\n{<\/span>{<\/span>IO_PORTA_00,<\/span>MX_KEY_PULLUP_CONFIG,<\/span>NULL<\/span>}<\/span>,<\/span>HAL_KEY_GPIOKEY_VAL_LOW,<\/span>APP_KEY_DEFAULE_STATUS,<\/span>APP_KEY_DEFAULE_EVENT,<\/span>0<\/span>}<\/span>,<\/span><\/p>\n

}<\/span>;<\/span><\/p>\n

\/\/ \u5224\u65ad\u6309\u952e\u662f\u5426\u6309\u4e0b<\/span>
\nstatic<\/span> bool hal_gpiokey_pressed<\/span>(<\/span>uint8_t<\/span> index)<\/span>
\n{<\/span>
\nreturn<\/span> (<\/span>gpio_read<\/span>(<\/span>gpio_key_cfg[<\/span>index]<\/span>.<\/span>key_config.<\/span>port)<\/span> ==<\/span> gpio_key_cfg[<\/span>index]<\/span>.<\/span>key_down)<\/span>;<\/span>
\n}<\/span><\/p>\n

\/\/ \u6309\u952e\u626b\u63cf\u51fd\u6570<\/span>
\nstatic<\/span> void<\/span> hal_key_debounce_handler<\/span>(<\/span>void<\/span> *<\/span>param)<\/span>
\n{<\/span>
\nstatic<\/span> bool key_press =<\/span> 0<\/span>;<\/span>
\nfor<\/span>(<\/span>int<\/span> ii=<\/span>0<\/span>;<\/span>ii<<\/span>CFG_HW_GPIOKEY_NUM;<\/span>ii++<\/span>)<\/span>
\n{<\/span>
\nkey_press =<\/span> hal_gpiokey_pressed<\/span>(<\/span>ii)<\/span>;<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count++<\/span>;<\/span>
\n\/\/printf("%s:%d",__func__,gpio_key_cfg[ii].status);<\/span>
\nswitch<\/span>(<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>status)<\/span>
\n{<\/span>
\ncase<\/span> APP_KEY_DEFAULE_STATUS:<\/span>
\nif<\/span>(<\/span>key_press)<\/span>
\n{<\/span>
\n\/\/\u6309\u4e0b，\u8fdb\u6d88\u6296<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count =<\/span> 0<\/span>;<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>status =<\/span> APP_KEY_DITHER_STATUS;<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>event =<\/span> APP_KEY_DEFAULE_EVENT;<\/span>
\n}<\/span>
\nelse<\/span>
\n{<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count =<\/span> 0<\/span>;<\/span>
\n}<\/span>
\nbreak<\/span>;<\/span>
\ncase<\/span> APP_KEY_DITHER_STATUS:<\/span>
\nif<\/span>(<\/span>key_press)<\/span>
\n{<\/span>
\nif<\/span>(<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count *<\/span> TIMER_PERIOD >=<\/span> KEY_DEBOUNCE_INTERVAL_MS)<\/span>
\n{<\/span>
\n\/\/\u6d88\u6296\u6210\u529f<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>status =<\/span> APP_KEY_DOWN_STATUS;<\/span>
\n}<\/span>
\n}<\/span>
\nelse<\/span>
\n{<\/span>
\n\/\/\u6d88\u6296\u5931\u8d25<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>status =<\/span> APP_KEY_DEFAULE_STATUS;<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count =<\/span> 0<\/span>;<\/span><\/p>\n

}<\/span>
\nbreak<\/span>;<\/span>
\ncase<\/span> APP_KEY_DOWN_STATUS:<\/span>
\nif<\/span>(<\/span>key_press)<\/span>
\n{<\/span>
\n\/\/\u5224\u65ad\u957f\u6309<\/span>
\nif<\/span>(<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count *<\/span> TIMER_PERIOD >=<\/span> KEY_LONGLONGPRESS_THRESHOLD_MS)<\/span>
\n{<\/span>
\n\/\/\u53d1\u9001\u957f\u957f\u6309\u4e8b\u4ef6<\/span>
\nif<\/span>(<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event ==<\/span> APP_KEY_LONGPRESS_EVENT)<\/span>
\n{<\/span>
\n \/\/ \u957f\u957f\u6309\u89e6\u53d1<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>event =<\/span> APP_KEY_LONGLONGPRESS_EVENT;<\/span>
\n\/\/mx_send_msg(MX_KEY_HANDLE,ii,gpio_key_cfg[ii].event);<\/span>
\nif<\/span>(<\/span>ii ==<\/span> 0<\/span>)<\/span>{<\/span>
\nmx_ui_task_post<\/span>(<\/span>MX_LVGL_TASK_KEY_ID,<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event)<\/span>;<\/span>
\n}<\/span><\/p>\n

}<\/span>
\n}<\/span>
\nelse<\/span> if<\/span>(<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count *<\/span> TIMER_PERIOD >=<\/span> KEY_LONGPRESS_THRESHOLD_MS)<\/span>
\n{<\/span>
\nif<\/span>(<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event !=<\/span> APP_KEY_LONGPRESS_EVENT)<\/span>
\n{<\/span>
\n \/\/ \u957f\u6309\u89e6\u53d1<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>event =<\/span> APP_KEY_LONGPRESS_EVENT;<\/span>
\n\/\/mx_send_msg(MX_KEY_HANDLE,ii,gpio_key_cfg[ii].event);<\/span>
\nif<\/span>(<\/span>ii ==<\/span> 0<\/span>)<\/span>{<\/span> \/\/ \u53d1\u9001\u4e8b\u4ef6<\/span>
\nmx_ui_task_post<\/span>(<\/span>MX_LVGL_TASK_KEY_ID,<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event)<\/span>;<\/span>
\n}<\/span> else<\/span> if<\/span>(<\/span>ii ==<\/span> 1<\/span>)<\/span>{<\/span>
\nmx_ui_task_post<\/span>(<\/span>MX_LVGL_TASK_TOUCH_KEY_ID,<\/span> gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event)<\/span>;<\/span>
\n}<\/span><\/p>\n

}<\/span>
\n}<\/span>
\n}<\/span>
\nelse<\/span>
\n{<\/span>
\nif<\/span>(<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event ==<\/span> APP_KEY_DEFAULE_EVENT)<\/span>
\n{<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>event =<\/span> APP_KEY_CLICK_EVENT;<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>status =<\/span> APP_KEY_INTERVAL_DEAL_STATUS;<\/span>
\n}<\/span>
\nelse<\/span> if<\/span>(<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event >=<\/span> APP_KEY_CLICK_EVENT)<\/span>
\n{<\/span><\/p>\n

if<\/span>(<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event >=<\/span> APP_KEY_EVENT_NUM)<\/span>
\n{<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>event =<\/span> APP_KEY_EVENT_NUM;<\/span>
\n}<\/span>
\nelse<\/span>
\n{<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>event++<\/span>;<\/span>
\n}<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>status =<\/span> APP_KEY_INTERVAL_DEAL_STATUS;<\/span>
\n}<\/span>
\nelse<\/span>
\n{<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>status =<\/span> APP_KEY_LONGPRESS_WAIT_RELEASE_STATUS;<\/span>
\n}<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count =<\/span> 0<\/span>;<\/span>
\n}<\/span>
\nbreak<\/span>;<\/span>
\ncase<\/span> APP_KEY_INTERVAL_DEAL_STATUS:<\/span>
\nif<\/span>(<\/span>key_press)<\/span>
\n{<\/span>
\n\/\/\u591a\u51fb\u5904\u7406<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>status =<\/span> APP_KEY_DOWN_STATUS;<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count =<\/span> 0<\/span>;<\/span>
\n}<\/span>
\nelse<\/span>
\n{<\/span>
\n\/\/\u591a\u51fb\u7b49\u5f85<\/span>
\nif<\/span>(<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count *<\/span> TIMER_PERIOD >=<\/span> KEY_CHECKER_INTERVAL_MS)<\/span>
\n{<\/span>
\n\/\/\u591a\u51fb\u7ed3\u675f<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>status =<\/span> APP_KEY_DEFAULE_EVENT;<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count =<\/span> 0<\/span>;<\/span><\/p>\n

\/\/mx_send_msg(MX_KEY_HANDLE,ii,gpio_key_cfg[ii].event);<\/span>
\n\/\/ \u591a\u51fb\u89e6\u53d1<\/span>
\nif<\/span>(<\/span>ii ==<\/span> 0<\/span>)<\/span>{<\/span>
\nmx_ui_task_post<\/span>(<\/span>MX_LVGL_TASK_KEY_ID,<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event)<\/span>;<\/span>
\n}<\/span> else<\/span> if<\/span>(<\/span>ii ==<\/span> 1<\/span>)<\/span>{<\/span>
\nmx_ui_task_post<\/span>(<\/span>MX_LVGL_TASK_TOUCH_KEY_ID,<\/span> gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event)<\/span>;<\/span>
\n}<\/span><\/p>\n

gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event =<\/span> APP_KEY_DEFAULE_EVENT;<\/span>
\n}<\/span>
\n}<\/span>
\nbreak<\/span>;<\/span>
\ncase<\/span> APP_KEY_LONGPRESS_WAIT_RELEASE_STATUS:<\/span>
\nif<\/span>(<\/span>!<\/span>key_press)<\/span>
\n{<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>status =<\/span> APP_KEY_DEFAULE_EVENT;<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count =<\/span> 0<\/span>;<\/span>
\nif<\/span>(<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event ==<\/span> APP_KEY_LONGLONGPRESS_EVENT)<\/span>
\n{<\/span>
\n}<\/span>
\nelse<\/span> if<\/span>(<\/span>gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event ==<\/span> APP_KEY_LONGPRESS_EVENT)<\/span>
\n{<\/span>
\n}<\/span><\/p>\n

gpio_key_cfg[<\/span>ii]<\/span>.<\/span>event =<\/span> APP_KEY_DEFAULE_EVENT;<\/span>
\n}<\/span>
\nbreak<\/span>;<\/span>
\ndefault<\/span>:<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>status =<\/span> APP_KEY_DEFAULE_EVENT;<\/span>
\ngpio_key_cfg[<\/span>ii]<\/span>.<\/span>timer_count =<\/span> 0<\/span>;<\/span>
\nbreak<\/span>;<\/span>
\n}<\/span>
\n}<\/span>
\n}<\/span><\/p>\n

static<\/span> void<\/span> mx_key_scan_init<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\n\/\/ \u521d\u59cb\u5316\u6309\u952e<\/span>
\nfor<\/span>(<\/span>int<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> CFG_HW_GPIOKEY_NUM;<\/span> i++<\/span>)<\/span> {<\/span>
\ngpio_direction_input<\/span>(<\/span>gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_config.<\/span>port)<\/span>;<\/span>
\ngpio_set_pull_down<\/span>(<\/span>gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_config.<\/span>port,<\/span> gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_config.<\/span>config)<\/span>;<\/span>
\ngpio_set_pull_up<\/span>(<\/span>gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_config.<\/span>port,<\/span> !<\/span>gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_config.<\/span>config)<\/span>;<\/span>
\ngpio_set_die<\/span>(<\/span>gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_config.<\/span>port,<\/span> 1<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

\/\/ \u5b9a\u671f\u626b\u63cf<\/span>
\n sys_timer_add_to_task<\/span>(<\/span>"sys_timer"<\/span>,<\/span> NULL<\/span>,<\/span> hal_key_debounce_handler,<\/span> TIMER_PERIOD)<\/span>;<\/span>
\n}<\/span>
\nstatic<\/span> void<\/span> mx_key_init<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\n if<\/span>(<\/span>production_test_io_get<\/span>(<\/span>)<\/span>)<\/span>{<\/span>
\n return<\/span>;<\/span>
\n }<\/span>
\n sys_timeout_add_to_task<\/span>(<\/span>"sys_timer"<\/span>,<\/span> NULL<\/span>,<\/span> mx_key_scan_init,<\/span> 1000<\/span>)<\/span>;<\/span>\/\/1\u79d2\u540e\u518d\u68c0\u6d4b\u6309\u952e<\/span>
\n}<\/span>
\nlate_initcall<\/span>(<\/span>mx_key_init)<\/span>;<\/span><\/p>\n

STM32F429IGT6\u5229\u7528\u72b6\u6001\u673a\u5b9e\u73b0\u6309\u952e\u7684\u975e\u963b\u585e\u68c0\u6d4b<\/h3>\n

\u5176\u5b9e\u539f\u7406\u90fd\u4e00\u6837，\u8ddf\u6770\u91cc\u7684AC791N\u7684\u68c0\u6d4b\u662f\u5dee\u4e0d\u591a\u7684，\u53ea\u4e0d\u8fc7\u9700\u8981\u4e00\u4e9b\u914d\u7f6e\u800c\u5df2\u3002<\/p>\n

sys_tick\u7cfb\u7edf\u65f6\u949f\u914d\u7f6e<\/h4>\n

sys_tick.h：<\/p>\n

#<\/span>ifndef<\/span> __SYS_TICK_H_<\/span><\/span>
\n#<\/span>define<\/span> __SYS_TICK_H_<\/span><\/span><\/p>\n

#<\/span>include<\/span> "stm32f4xx.h"<\/span> \/\/ Device header<\/span><\/span><\/p>\n

void<\/span> sys_tick_init<\/span>(<\/span>void<\/span>)<\/span>;<\/span>
\nuint32_t<\/span> sys_tick_get_time_ms<\/span>(<\/span>void<\/span>)<\/span>;<\/span><\/p>\n

#<\/span>endif<\/span><\/span><\/p>\n

sys_tick:<\/p>\n

#<\/span>include<\/span> "sys_tick.h"<\/span><\/span><\/p>\n

\/*\u5168\u5c40\u8ba1\u6570\u53d8\u91cf*\/<\/span>
\nstatic<\/span> volatile<\/span> uint32_t<\/span> sys_tick_cnt =<\/span> 0<\/span>;<\/span><\/p>\n

\/**
\n * @brief \u6ef4\u7b54\u5b9a\u65f6\u5668\u914d\u7f6e
\n * @note \u5b9a\u65f6\u65f6\u95f41ms, SystemCoreClock = 180000000
\n * @param None
\n * @retval None
\n *\/<\/span>
\nvoid<\/span> sys_tick_init<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\nif<\/span>(<\/span>SysTick_Config<\/span>(<\/span>SystemCoreClock \/<\/span> 1000<\/span>)<\/span>)<\/span>{<\/span>
\nwhile<\/span>(<\/span>1<\/span>)<\/span>;<\/span> \/*\u914d\u7f6e\u9519\u8bef\u6b7b\u5faa\u73af*\/<\/span>
\n}<\/span>
\n}<\/span><\/p>\n

\/**
\n * @brief SysTick\u65f6\u949f\u6ea2\u51fa\u56de\u8c03，\u63d0\u4f9b\u7cfb\u7edf\u5fc3\u8df3\u8282\u62cd
\n * @note \u9700\u8981\u6ce8\u91ca\u6389stm32f4xx_it.c\u4e2d\u539f\u672c\u7684\u56de\u8c03\u51fd\u6570
\n * @param None
\n * @retval None
\n *\/<\/span>
\nvoid<\/span> SysTick_Handler<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\nsys_tick_cnt++<\/span>;<\/span>
\n}<\/span><\/p>\n

\/**
\n * @brief \u83b7\u53d6\u8ba1\u6570\u65f6\u95f4
\n * @note None
\n * @param None
\n * @retval \u5f53\u524d\u8ba1\u6570\u65f6\u95f4
\n *\/<\/span>
\nuint32_t<\/span> sys_tick_get_time_ms<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\nreturn<\/span> sys_tick_cnt;<\/span>
\n}<\/span><\/p>\n

**\u6ce8\u610f：**\u5728\u6211\u7684\u65f6\u949f\u6811\u914d\u7f6e\u4e2d，\u7cfb\u7edf\u65f6\u949f\u5c31\u662f180M，\u5982\u679c\u7cfb\u7edf\u65f6\u949f\u5e03\u7f6e180M\u7684，\u9700\u8981\u6839\u636e\u7cfb\u7edf\u914d\u7f6e\u8fdb\u884c\u4fee\u6539！！！<\/p>\n

\u6309\u952e\u914d\u7f6e<\/h4>\n

key.h:<\/p>\n

#<\/span>ifndef<\/span> __KEY_H_<\/span><\/span>
\n#<\/span>define<\/span> __KEY_H_<\/span><\/span><\/p>\n

#<\/span>include<\/span> "stm32f4xx.h"<\/span> \/\/ Device header<\/span><\/span>
\n#<\/span>include<\/span> "gpio.h"<\/span><\/span>
\n#<\/span>include<\/span> "sys_tick.h"<\/span><\/span><\/p>\n

#<\/span>define<\/span> KEY_NUM<\/span> (<\/span>3<\/span>)<\/span> <\/span>\/*\u6309\u952e\u6570\u91cf*\/<\/span><\/span>
\n#<\/span>define<\/span> KEY_SCANF_ENABLE<\/span> (<\/span>1<\/span>)<\/span> <\/span>\/*\u6309\u952e\u626b\u63cf\u5f00\u5173*\/<\/span><\/span><\/p>\n

\/*\u6309\u952e\u53c2\u6570\u914d\u7f6e*\/<\/span>
\n#<\/span>define<\/span> KEY_DEBOUNCE_TIME_MS<\/span> 20<\/span> <\/span>\/* \u6309\u952e\u6d88\u6296\u65f6\u95f4(ms) *\/<\/span><\/span>
\n#<\/span>define<\/span> KEY_LONG_PRESS_TIME_MS<\/span> 2000<\/span> <\/span>\/* \u957f\u6309\u5224\u5b9a\u65f6\u95f4(ms) *\/<\/span><\/span>
\n#<\/span>define<\/span> KEY_DOUBLE_CLICK_GAP_MS<\/span> 300<\/span> <\/span>\/* \u53cc\u51fb\u95f4\u9694\u65f6\u95f4(ms) *\/<\/span><\/span>
\n#<\/span>define<\/span> KEY_CONTINUOUS_PRESS_MS<\/span> 100<\/span> <\/span>\/* \u8fde\u51fb\u95f4\u9694\u65f6\u95f4(ms) *\/<\/span><\/span><\/p>\n

\/*\u89e6\u53d1\u7535\u5e73\u914d\u7f6e*\/<\/span>
\ntypedef<\/span> enum<\/span>{<\/span>
\nGPIO_TRIGGER_LOW =<\/span> 0X00<\/span>,<\/span>
\nGPIO_TRIGGER_HIGH,<\/span>
\n}<\/span> GPIO_TRIGGER_CFG;<\/span><\/p>\n

\/*\u6309\u952e\u72b6\u6001\u914d\u7f6e*\/<\/span>
\ntypedef<\/span> enum<\/span>{<\/span>
\nKEY_STATUS_DEFAULT =<\/span> 0X00<\/span>,<\/span>
\nKEY_STATUS_PRESS,<\/span>
\nKEY_STATUS_DEBOUNCE,<\/span>
\nKEY_STATUS_WAIT,<\/span> \/\/ \u7b49\u5f85\u7b2c\u4e8c\u6b21\u6216\u8005\u591a\u6b21\u6309\u4e0b<\/span>
\nKEY_STATUS_LONG_PRESS_WAIT_RELEASE,<\/span> \/\/ \u957f\u6309\u7b49\u5f85\u91ca\u653e\u72b6\u6001<\/span>
\n}<\/span> KEY_STATUS_CFG;<\/span> <\/p>\n

\/*\u6309\u952e\u4e8b\u4ef6\u914d\u7f6e*\/<\/span>
\ntypedef<\/span> enum<\/span>{<\/span>
\nKEY_EVENT_DEFAULT =<\/span> 0X00<\/span>,<\/span>
\nKEY_EVENT_LONG_PRESS,<\/span>
\nKEY_EVENT_LONG_RELAX,<\/span>
\nKEY_EVENT_CLICKED,<\/span>
\nKEY_EVENT_DOUBLE_CLICKED,<\/span>
\nKEY_EVENT_THIRD_CLICKED,<\/span>
\nKEY_EVENT_FOUR_CLICKED,<\/span>
\nKEY_EVENT_MORE_CLICKED,<\/span>
\n}<\/span> KEY_EVENT_CFG;<\/span><\/p>\n

typedef<\/span> struct<\/span>{<\/span>
\nGPIO_TypeDef *<\/span>key_port;<\/span>
\nuint16_t<\/span> key_pin;<\/span>
\nGPIOPuPd_TypeDef set_input;<\/span>
\n}<\/span> KEY_CFG;<\/span><\/p>\n

\/*\u6309\u952e\u914d\u7f6e*\/<\/span>
\ntypedef<\/span> struct<\/span>{<\/span>
\nKEY_CFG key_cofig;<\/span>
\nGPIO_TRIGGER_CFG key_trigger;<\/span>
\nKEY_STATUS_CFG key_status;<\/span>
\nKEY_EVENT_CFG key_event;<\/span>
\nuint32_t<\/span> key_clicked_cnt;<\/span> \/*\u6309\u952e\u6309\u4e0b\u6b21\u6570*\/<\/span>
\nuint32_t<\/span> key_press_time;<\/span> \/* \u6309\u952e\u6309\u4e0b\u65f6\u523b *\/<\/span>
\n uint32_t<\/span> key_last_click_time;<\/span> \/* \u4e0a\u4e00\u6b21\u5355\u51fb\u65f6\u523b *\/<\/span>
\n uint8_t<\/span> key_valid;<\/span> \/* \u6309\u952e\u662f\u5426\u6709\u6548 *\/<\/span>
\n}<\/span> KEY_CONFIG_T;<\/span><\/p>\n

void<\/span> key_gpio_init<\/span>(<\/span>void<\/span>)<\/span>;<\/span>
\nvoid<\/span> key_scanf<\/span>(<\/span>void<\/span>)<\/span>;<\/span><\/p>\n

\/\/ \u83b7\u53d6\u6309\u952e\u4e8b\u4ef6<\/span>
\nKEY_EVENT_CFG key_get_event<\/span>(<\/span>uint8_t<\/span> key_index)<\/span>;<\/span><\/p>\n

#<\/span>endif<\/span><\/span><\/p>\n

key.c:<\/p>\n

#<\/span>include<\/span> "key.h"<\/span><\/span><\/p>\n

#<\/span>if<\/span> KEY_SCANF_ENABLE<\/span><\/span><\/p>\n

\/*\u6309\u952e\u914d\u7f6e\u521d\u59cb\u5316*\/<\/span>
\nKEY_CONFIG_T gpio_key_cfg[<\/span>KEY_NUM]<\/span> =<\/span> {<\/span>
\n{<\/span>{<\/span>GPIOH,<\/span> GPIO_Pin_3,<\/span> GPIO_PuPd_UP}<\/span>,<\/span> GPIO_TRIGGER_LOW,<\/span> KEY_STATUS_DEFAULT,<\/span> KEY_EVENT_DEFAULT,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>,<\/span>
\n{<\/span>{<\/span>GPIOH,<\/span> GPIO_Pin_2,<\/span> GPIO_PuPd_UP}<\/span>,<\/span> GPIO_TRIGGER_LOW,<\/span> KEY_STATUS_DEFAULT,<\/span> KEY_EVENT_DEFAULT,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>,<\/span>
\n{<\/span>{<\/span>GPIOC,<\/span> GPIO_Pin_13,<\/span> GPIO_PuPd_UP}<\/span>,<\/span> GPIO_TRIGGER_LOW,<\/span> KEY_STATUS_DEFAULT,<\/span> KEY_EVENT_DEFAULT,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 1<\/span>}<\/span>,<\/span>
\n}<\/span>;<\/span><\/p>\n

\/*\u6309\u952e\u521d\u59cb\u5316*\/<\/span>
\nvoid<\/span> key_gpio_init<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\nfor<\/span>(<\/span>uint8_t<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> KEY_NUM;<\/span> i++<\/span>)<\/span>{<\/span>
\ngpio_config_begin<\/span>(<\/span>gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_cofig.<\/span>key_port,<\/span> gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_cofig.<\/span>key_pin)<\/span>;<\/span>
\ngpio_set_mode<\/span>(<\/span>GPIO_Mode_IN)<\/span>;<\/span>
\ngpio_set_pupd<\/span>(<\/span>gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_cofig.<\/span>set_input)<\/span>;<\/span>
\ngpio_config_apply<\/span>(<\/span>)<\/span>;<\/span>
\n}<\/span>
\n}<\/span><\/p>\n

static<\/span> uint8_t<\/span> key_gpio_read<\/span>(<\/span>uint8_t<\/span> num)<\/span>
\n{<\/span>
\nreturn<\/span> (<\/span>GPIO_ReadInputDataBit<\/span>(<\/span>gpio_key_cfg[<\/span>num]<\/span>.<\/span>key_cofig.<\/span>key_port,<\/span> gpio_key_cfg[<\/span>num]<\/span>.<\/span>key_cofig.<\/span>key_pin)<\/span> ==<\/span> GPIO_TRIGGER_LOW)<\/span>;<\/span>
\n}<\/span><\/p>\n

static<\/span> uint32_t<\/span> get_tick_ms<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\nreturn<\/span> sys_tick_get_time_ms<\/span>(<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

void<\/span> key_scanf<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\n uint8_t<\/span> key_press;<\/span>
\n uint32_t<\/span> wait_time;<\/span>
\n static<\/span> uint32_t<\/span> last_scan_time =<\/span> 0<\/span>;<\/span>
\n uint32_t<\/span> current_time =<\/span> get_tick_ms<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\/* \u6309\u952e\u626b\u63cf\u95f4\u9694\u63a7\u5236（10ms\u626b\u63cf\u4e00\u6b21） *\/<\/span>
\n if<\/span>(<\/span>current_time –<\/span> last_scan_time <<\/span> 10<\/span>)<\/span> return<\/span>;<\/span>
\n last_scan_time =<\/span> current_time;<\/span><\/p>\n

for<\/span>(<\/span>uint8_t<\/span> i =<\/span> 0<\/span>;<\/span> i <<\/span> KEY_NUM;<\/span> i++<\/span>)<\/span>{<\/span>
\n if<\/span>(<\/span>!<\/span>gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_valid)<\/span> continue<\/span>;<\/span><\/p>\n

key_press =<\/span> key_gpio_read<\/span>(<\/span>i)<\/span>;<\/span><\/p>\n

\/* \u5982\u679c\u5df2\u7ecf\u6709\u4e8b\u4ef6\u5f85\u5904\u7406，\u8df3\u8fc7\u672c\u6b21\u626b\u63cf *\/<\/span>
\n if<\/span>(<\/span>gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_event !=<\/span> KEY_EVENT_DEFAULT)<\/span> {<\/span>
\n continue<\/span>;<\/span>
\n }<\/span><\/p>\n

switch<\/span>(<\/span>gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_status)<\/span>
\n {<\/span>
\n case<\/span> KEY_STATUS_DEFAULT:<\/span>
\n if<\/span>(<\/span>key_press)<\/span>{<\/span> \/* \u68c0\u6d4b\u5230\u6309\u952e\u6309\u4e0b *\/<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_status =<\/span> KEY_STATUS_DEBOUNCE;<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_press_time =<\/span> current_time;<\/span>
\n }<\/span>
\n break<\/span>;<\/span><\/p>\n

case<\/span> KEY_STATUS_DEBOUNCE:<\/span>
\n \/* \u6d88\u6296\u5904\u7406 *\/<\/span>
\n if<\/span>(<\/span>current_time –<\/span> gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_press_time >=<\/span> KEY_DEBOUNCE_TIME_MS)<\/span>{<\/span>
\n if<\/span>(<\/span>key_gpio_read<\/span>(<\/span>i)<\/span>)<\/span>{<\/span> \/* \u786e\u8ba4\u6309\u952e\u6309\u4e0b *\/<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_status =<\/span> KEY_STATUS_PRESS;<\/span>
\n }<\/span>else<\/span>{<\/span> \/* \u6296\u52a8，\u56de\u5230\u9ed8\u8ba4\u72b6\u6001 *\/<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_status =<\/span> KEY_STATUS_DEFAULT;<\/span>
\n }<\/span>
\n }<\/span>
\n break<\/span>;<\/span><\/p>\n

case<\/span> KEY_STATUS_PRESS:<\/span>
\n if<\/span>(<\/span>current_time –<\/span> gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_press_time >=<\/span> KEY_LONG_PRESS_TIME_MS)<\/span>{<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_event =<\/span> KEY_EVENT_LONG_PRESS;<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_status =<\/span> KEY_STATUS_LONG_PRESS_WAIT_RELEASE;<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_clicked_cnt =<\/span> 0<\/span>;<\/span> \/* \u957f\u6309\u540e\u91cd\u7f6e\u8ba1\u6570 *\/<\/span>
\n break<\/span>;<\/span> \/* \u8df3\u51fa\u5f53\u524d\u6309\u952e\u7684\u72b6\u6001\u5904\u7406 *\/<\/span>
\n }<\/span><\/p>\n

if<\/span>(<\/span>!<\/span>key_gpio_read<\/span>(<\/span>i)<\/span>)<\/span>{<\/span> \/* \u6309\u952e\u91ca\u653e *\/<\/span>
\n \/* \u77ed\u6309\u91ca\u653e，\u8bb0\u5f55\u91ca\u653e\u65f6\u95f4\u5e76\u8fdb\u5165\u7b49\u5f85\u72b6\u6001 *\/<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_clicked_cnt++<\/span>;<\/span> \/* \u589e\u52a0\u70b9\u51fb\u8ba1\u6570 *\/<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_last_click_time =<\/span> current_time;<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_status =<\/span> KEY_STATUS_WAIT;<\/span>
\n }<\/span>
\n break<\/span>;<\/span><\/p>\n

case<\/span> KEY_STATUS_WAIT:<\/span>
\n \/* \u7b49\u5f85\u7b2c\u4e8c\u6b21\u6216\u8005\u591a\u6b21\u6309\u4e0b *\/<\/span>
\n wait_time =<\/span> current_time –<\/span> gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_last_click_time;<\/span><\/p>\n

if<\/span>(<\/span>wait_time ><\/span> KEY_DOUBLE_CLICK_GAP_MS)<\/span>{<\/span> \/* \u7b49\u5f85\u8d85\u65f6 *\/<\/span>
\n uint32_t<\/span> click_count =<\/span> gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_clicked_cnt;<\/span><\/p>\n

if<\/span>(<\/span>click_count ==<\/span> 1<\/span>)<\/span> {<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_event =<\/span> KEY_EVENT_CLICKED;<\/span>
\n }<\/span> else<\/span> if<\/span>(<\/span>click_count ==<\/span> 2<\/span>)<\/span> {<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_event =<\/span> KEY_EVENT_DOUBLE_CLICKED;<\/span>
\n }<\/span> else<\/span> if<\/span>(<\/span>click_count ==<\/span> 3<\/span>)<\/span> {<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_event =<\/span> KEY_EVENT_THIRD_CLICKED;<\/span>
\n }<\/span> else<\/span> if<\/span>(<\/span>click_count ==<\/span> 4<\/span>)<\/span> {<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_event =<\/span> KEY_EVENT_FOUR_CLICKED;<\/span>
\n }<\/span> else<\/span> if<\/span>(<\/span>click_count ><\/span> 4<\/span>)<\/span> {<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_event =<\/span> KEY_EVENT_MORE_CLICKED;<\/span>
\n }<\/span><\/p>\n

\/* \u89e6\u53d1\u4e8b\u4ef6\u540e，\u91cd\u7f6e\u72b6\u6001 *\/<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_status =<\/span> KEY_STATUS_DEFAULT;<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_clicked_cnt =<\/span> 0<\/span>;<\/span>
\n }<\/span> else<\/span> if<\/span>(<\/span>key_gpio_read<\/span>(<\/span>i)<\/span>)<\/span>{<\/span> \/* \u5728\u7b49\u5f85\u65f6\u95f4\u5185\u518d\u6b21\u6309\u4e0b *\/<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_status =<\/span> KEY_STATUS_DEBOUNCE;<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_press_time =<\/span> current_time;<\/span>
\n }<\/span>
\n break<\/span>;<\/span><\/p>\n

case<\/span> KEY_STATUS_LONG_PRESS_WAIT_RELEASE:<\/span>
\n \/* \u957f\u6309\u7b49\u5f85\u91ca\u653e\u72b6\u6001，\u68c0\u6d4b\u6309\u952e\u662f\u5426\u91ca\u653e *\/<\/span>
\n if<\/span>(<\/span>!<\/span>key_gpio_read<\/span>(<\/span>i)<\/span>)<\/span>{<\/span>
\n \/* \u89e6\u53d1\u957f\u6309\u91ca\u653e\u4e8b\u4ef6 *\/<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_event =<\/span> KEY_EVENT_LONG_RELAX;<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_status =<\/span> KEY_STATUS_DEFAULT;<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_clicked_cnt =<\/span> 0<\/span>;<\/span>
\n }<\/span>
\n break<\/span>;<\/span><\/p>\n

default<\/span>:<\/span>
\n gpio_key_cfg[<\/span>i]<\/span>.<\/span>key_status =<\/span> KEY_STATUS_DEFAULT;<\/span>
\n break<\/span>;<\/span>
\n }<\/span>
\n }<\/span>
\n}<\/span><\/p>\n

\/**
\n * @brief \u83b7\u53d6\u6309\u952e\u4e8b\u4ef6
\n * @note \u5728\u8c03\u7528\u8be5\u51fd\u6570\u4e4b\u524d\u5fc5\u987b\u5bf9\u6309\u952eIO\u53e3\u8fdb\u884c\u521d\u59cb\u5316，\u5e76\u4e14\u8fdb\u884c\u6309\u952e\u626b\u63cf
\n * @param key_index：\u9700\u8981\u83b7\u53d6\u4e8b\u4ef6\u7684\u6309\u952e\u7684IO\u53e3
\n * @retval \u8fd4\u56de\u8be5IO\u53e3\u89e6\u53d1\u7684\u6309\u952e\u4e8b\u4ef6
\n *\/<\/span>
\nKEY_EVENT_CFG key_get_event<\/span>(<\/span>uint8_t<\/span> key_index)<\/span>
\n{<\/span>
\n if<\/span>(<\/span>key_index >=<\/span> KEY_NUM ||<\/span> !<\/span>gpio_key_cfg[<\/span>key_index]<\/span>.<\/span>key_valid)<\/span>{<\/span>
\n return<\/span> KEY_EVENT_DEFAULT;<\/span>
\n }<\/span><\/p>\n

KEY_EVENT_CFG event =<\/span> gpio_key_cfg[<\/span>key_index]<\/span>.<\/span>key_event;<\/span><\/p>\n

\/\/ \u89e6\u53d1\u5b8c\u6210\u540e\u6e05\u7a7a\u6309\u952e\u4e8b\u4ef6<\/span>
\n if<\/span>(<\/span>event !=<\/span> KEY_EVENT_DEFAULT)<\/span> {<\/span>
\n gpio_key_cfg[<\/span>key_index]<\/span>.<\/span>key_event =<\/span> KEY_EVENT_DEFAULT;<\/span>
\n }<\/span><\/p>\n

return<\/span> event;<\/span>
\n}<\/span><\/p>\n

#<\/span>endif<\/span><\/span><\/p>\n

\u4e0b\u9762\u662f\u5728main.c\u4e2d\u8fd0\u884c：<\/p>\n

#<\/span>include<\/span> "stm32f4xx.h"<\/span><\/span>
\n#<\/span>include<\/span> "gpio.h"<\/span><\/span>
\n#<\/span>include<\/span> "sys_tick.h"<\/span><\/span>
\n#<\/span>include<\/span> "key.h"<\/span><\/span><\/p>\n

void<\/span> sys_init<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\n \/\/ \u4e24\u4e2aled\u706f\u7684\u521d\u59cb\u5316<\/span>
\ngpio_config_begin<\/span>(<\/span>GPIOB,<\/span> GPIO_Pin_0)<\/span>;<\/span>
\ngpio_config_apply<\/span>(<\/span>)<\/span>;<\/span>
\ngpio_config_begin<\/span>(<\/span>GPIOB,<\/span> GPIO_Pin_1)<\/span>;<\/span>
\ngpio_config_apply<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

sys_tick_init<\/span>(<\/span>)<\/span>;<\/span>
\nkey_gpio_init<\/span>(<\/span>)<\/span>;<\/span>
\n}<\/span><\/p>\n

int<\/span> main<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\nsys_init<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

KEY_EVENT_CFG event0;<\/span><\/p>\n

for<\/span>(<\/span>;<\/span>;<\/span>)<\/span> {<\/span>
\nkey_scanf<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

if<\/span>(<\/span>(<\/span>sys_tick_get_time_ms<\/span>(<\/span>)<\/span> \/<\/span> 1000<\/span>)<\/span> %<\/span> 2<\/span> ==<\/span> 0<\/span>)<\/span>{<\/span> \/\/ led0, 1s\u4eae\u706d\u4e00\u6b21<\/span>
\nGPIO_ResetBits<\/span>(<\/span>GPIOB,<\/span> GPIO_Pin_0)<\/span>;<\/span>
\n}<\/span> else<\/span>{<\/span>
\nGPIO_SetBits<\/span>(<\/span>GPIOB,<\/span> GPIO_Pin_0)<\/span>;<\/span>
\n}<\/span><\/p>\n

event0 =<\/span> key_get_event<\/span>(<\/span>0<\/span>)<\/span>;<\/span>
\n if<\/span>(<\/span>event0 ==<\/span> KEY_EVENT_LONG_PRESS)<\/span>{<\/span> \/\/ led1\u7531\u6309\u952e\u63a7\u5236\u4eae\u706d<\/span>
\nGPIO_SetBits<\/span>(<\/span>GPIOB,<\/span> GPIO_Pin_1)<\/span>;<\/span>
\n }<\/span> else<\/span> if<\/span>(<\/span>event0 ==<\/span> KEY_EVENT_LONG_RELAX)<\/span>{<\/span>
\nGPIO_ResetBits<\/span>(<\/span>GPIOB,<\/span> GPIO_Pin_1)<\/span>;<\/span>
\n}<\/span>
\n}<\/span>
\n}<\/span><\/p>\n

\u9644\u4e0a：\u4e0a\u9762\u4ee3\u7801\u4e2d\u7684led\u706fgpio\u7684\u914d\u7f6e<\/h4>\n

gpio\u505a\u4e86\u666e\u9002\u6027\u9002\u914d，\u53ef\u901a\u8fc7\u63a5\u53e3\u4fee\u6539\u914d\u7f6e，\u4e5f\u53ef\u4ee5\u4f7f\u7528\u9ed8\u8ba4\u914d\u7f6e\u3002<\/p>\n

gpio.h:<\/p>\n

#<\/span>ifndef<\/span> __GPIO_H_<\/span><\/span>
\n#<\/span>define<\/span> __GPIO_H_<\/span><\/span><\/p>\n

#<\/span>include<\/span> "stm32f4xx.h"<\/span><\/span><\/p>\n

\/*\u7a7a\u6307\u9488\u5b9a\u4e49*\/<\/span>
\n#<\/span>ifndef<\/span> NULL<\/span><\/span><\/span>
\n#<\/span>ifdef<\/span> __cplusplus<\/span><\/span>
\n #<\/span>define<\/span> NULL<\/span> 0<\/span><\/span><\/span>
\n#<\/span>else<\/span><\/span>
\n #<\/span>define<\/span> NULL<\/span> (<\/span>(<\/span>void<\/span> *<\/span>)<\/span>0<\/span>)<\/span><\/span><\/span>
\n#<\/span>endif<\/span><\/span>
\n#<\/span>endif<\/span><\/span><\/p>\n

\/**
\n * @brief \u83b7\u53d6GPIO\u7aef\u53e3\u5bf9\u5e94\u7684\u65f6\u949f\u4f7f\u80fd\u4f4d
\n * @param GPIOx: GPIO\u7aef\u53e3，\u53ef\u4ee5\u662fGPIOA, GPIOB, GPIOC, GPIOD, GPIOE, GPIOF, GPIOG, GPIOH, GPIOI
\n * @return \u5bf9\u5e94\u7684RCC\u65f6\u949f\u4f7f\u80fd\u4f4d
\n *\/<\/span>
\n#<\/span>define<\/span> GET_GPIO_CLOCK_ENABLE<\/span>(<\/span>GPIOx)<\/span> <\/span>\\\\<\/span>
\n (<\/span>(<\/span>GPIOx)<\/span> ==<\/span> GPIOA ?<\/span> RCC_AHB1Periph_GPIOA :<\/span> <\/span>\\\\<\/span>
\n (<\/span>GPIOx)<\/span> ==<\/span> GPIOB ?<\/span> RCC_AHB1Periph_GPIOB :<\/span> <\/span>\\\\<\/span>
\n (<\/span>GPIOx)<\/span> ==<\/span> GPIOC ?<\/span> RCC_AHB1Periph_GPIOC :<\/span> <\/span>\\\\<\/span>
\n (<\/span>GPIOx)<\/span> ==<\/span> GPIOD ?<\/span> RCC_AHB1Periph_GPIOD :<\/span> <\/span>\\\\<\/span>
\n (<\/span>GPIOx)<\/span> ==<\/span> GPIOE ?<\/span> RCC_AHB1Periph_GPIOE :<\/span> <\/span>\\\\<\/span>
\n (<\/span>GPIOx)<\/span> ==<\/span> GPIOF ?<\/span> RCC_AHB1Periph_GPIOF :<\/span> <\/span>\\\\<\/span>
\n (<\/span>GPIOx)<\/span> ==<\/span> GPIOG ?<\/span> RCC_AHB1Periph_GPIOG :<\/span> <\/span>\\\\<\/span>
\n (<\/span>GPIOx)<\/span> ==<\/span> GPIOH ?<\/span> RCC_AHB1Periph_GPIOH :<\/span> <\/span>\\\\<\/span>
\n (<\/span>GPIOx)<\/span> ==<\/span> GPIOI ?<\/span> RCC_AHB1Periph_GPIOI :<\/span><\/span>\\\\<\/span>
\n (<\/span>GPIOx)<\/span> ==<\/span> GPIOJ ?<\/span> RCC_AHB1Periph_GPIOJ :<\/span> <\/span>\\\\<\/span>
\n (<\/span>GPIOx)<\/span> ==<\/span> GPIOK ?<\/span> RCC_AHB1Periph_GPIOK :<\/span> 0<\/span>)<\/span><\/span><\/span><\/p>\n

\/**
\n * @brief \u5224\u65adGPIO\u7aef\u53e3\u6302\u8f7d\u7684\u603b\u7ebf\u7c7b\u578b
\n * @param GPIOx: GPIO\u7aef\u53e3
\n * @return \u603b\u7ebf\u7c7b\u578b：RCC_APB2Periph_GPIOx, RCC_APB1Periph_GPIOx, RCC_AHB1Periph_GPIOx\u7b49
\n * @note \u5bf9\u4e8eSTM32F429IGT6，\u6240\u6709GPIO\u90fd\u6302\u5728AHB1\u603b\u7ebf\u4e0a
\n *\/<\/span>
\n#<\/span>define<\/span> GET_GPIO_BUS_TYPE<\/span>(<\/span>GPIOx)<\/span> RCC_AHB1Periph_GPIOx<\/span><\/span><\/p>\n

\/**
\n * @brief \u4f7f\u80fdGPIO\u7aef\u53e3\u65f6\u949f
\n * @param GPIOx: GPIO\u7aef\u53e3
\n * @note \u6839\u636eGPIO\u7aef\u53e3\u81ea\u52a8\u9009\u62e9\u5bf9\u5e94\u7684\u65f6\u949f\u4f7f\u80fd\u4f4d，\u5e76\u5f00\u542fAHB1\u603b\u7ebf\u65f6\u949f
\n *\/<\/span>
\n#<\/span>define<\/span> GPIO_CLOCK_ENABLE<\/span>(<\/span>GPIOx)<\/span> <\/span>\\\\<\/span>
\n do<\/span> {<\/span> <\/span>\\\\<\/span>
\n uint32_t<\/span> rcc_periph =<\/span> GET_GPIO_CLOCK_ENABLE<\/span>(<\/span>GPIOx)<\/span>;<\/span> <\/span>\\\\<\/span>
\n if<\/span> (<\/span>rcc_periph !=<\/span> 0<\/span>)<\/span> {<\/span> <\/span>\\\\<\/span>
\n RCC_AHB1PeriphClockCmd<\/span>(<\/span>rcc_periph,<\/span> ENABLE)<\/span>;<\/span> <\/span>\\\\<\/span>
\n }<\/span> <\/span>\\\\<\/span>
\n }<\/span> while<\/span>(<\/span>0<\/span>)<\/span><\/span><\/span><\/p>\n

\/**
\n * @brief \u5173\u95edGPIO\u7aef\u53e3\u65f6\u949f
\n * @param GPIOx: GPIO\u7aef\u53e3
\n *\/<\/span>
\n#<\/span>define<\/span> GPIO_CLOCK_DISABLE<\/span>(<\/span>GPIOx)<\/span> <\/span>\\\\<\/span>
\n do<\/span> {<\/span> <\/span>\\\\<\/span>
\n uint32_t<\/span> rcc_periph =<\/span> GET_GPIO_CLOCK_ENABLE<\/span>(<\/span>GPIOx)<\/span>;<\/span> <\/span>\\\\<\/span>
\n if<\/span> (<\/span>rcc_periph !=<\/span> 0<\/span>)<\/span> {<\/span> <\/span>\\\\<\/span>
\n RCC_AHB1PeriphClockCmd<\/span>(<\/span>rcc_periph,<\/span> DISABLE)<\/span>;<\/span> <\/span>\\\\<\/span>
\n }<\/span> <\/span>\\\\<\/span>
\n }<\/span> while<\/span>(<\/span>0<\/span>)<\/span><\/span><\/span><\/p>\n

#<\/span>endif<\/span><\/span><\/p>\n

\/**
\n * @brief \u5f00\u59cb\u914d\u7f6e\u4e00\u4e2a\u65b0\u7684GPIO\u5f15\u811a（\u81ea\u52a8\u91cd\u7f6e\u4e3a\u9ed8\u8ba4\u914d\u7f6e）
\n * @note \u6bcf\u6b21\u5f00\u59cb\u914d\u7f6e\u5f15\u811a\u524d\u90fd\u8981\u5148\u8c03\u7528\u8be5\u63a5\u53e3
\n * @param GPIOx: GPIO\u7aef\u53e3
\n * @param GPIO_Pin_x: GPIO\u5f15\u811a
\n * @note \u81ea\u52a8\u91cd\u7f6e\u4e3a\u9ed8\u8ba4\u914d\u7f6e，\u5e76\u8bb0\u5f55\u5f15\u811a\u4fe1\u606f
\n *\/<\/span>
\nvoid<\/span> gpio_config_begin<\/span>(<\/span>GPIO_TypeDef *<\/span>GPIOx,<\/span> uint16_t<\/span> GPIO_Pin_x)<\/span>;<\/span><\/p>\n

\/**
\n * @brief \u8bbe\u7f6eGPIO\u6a21\u5f0f
\n * @param mode: GPIO\u6a21\u5f0f
\n *\/<\/span>
\nvoid<\/span> gpio_set_mode<\/span>(<\/span>GPIOMode_TypeDef mode)<\/span>;<\/span><\/p>\n

\/**
\n * @brief \u8bbe\u7f6eGPIO\u8f93\u51fa\u7c7b\u578b（\u4ec5\u5bf9\u8f93\u51fa\u548c\u590d\u7528\u6a21\u5f0f\u6709\u6548）
\n * @param type: GPIO\u8f93\u51fa\u7c7b\u578b
\n *\/<\/span>
\nvoid<\/span> gpio_set_output_type<\/span>(<\/span>GPIOOType_TypeDef type)<\/span>;<\/span><\/p>\n

\/**
\n * @brief \u8bbe\u7f6eGPIO\u4e0a\u4e0b\u62c9\u7535\u963b
\n * @param pupd: GPIO\u4e0a\u4e0b\u62c9\u914d\u7f6e
\n *\/<\/span>
\nvoid<\/span> gpio_set_pupd<\/span>(<\/span>GPIOPuPd_TypeDef pupd)<\/span>;<\/span><\/p>\n

\/**
\n * @brief \u8bbe\u7f6eGPIO\u901f\u5ea6
\n * @param speed: GPIO\u901f\u5ea6
\n *\/<\/span>
\nvoid<\/span> gpio_set_speed<\/span>(<\/span>GPIOSpeed_TypeDef speed)<\/span>;<\/span><\/p>\n

\/**
\n * @brief \u5e94\u7528\u914d\u7f6e\u5230\u786c\u4ef6（\u6267\u884cGPIO_Init）
\n * @note \u4f7f\u80fd\u65f6\u949f，\u6267\u884cGPIO\u521d\u59cb\u5316，\u7136\u540e\u81ea\u52a8\u91cd\u7f6e\u5185\u90e8\u72b6\u6001,\u5f15\u811a\u914d\u7f6e\u5b8c\u6210\u540e\u5fc5\u987b\u8c03\u7528
\n *\/<\/span>
\nvoid<\/span> gpio_config_apply<\/span>(<\/span>void<\/span>)<\/span>;<\/span><\/p>\n

gpio.c:<\/p>\n

#<\/span>include<\/span> "gpio.h"<\/span><\/span><\/p>\n

\/*\u9759\u6001\u5168\u5c40\u53d8\u91cf\u5b9a\u4e49*\/<\/span>
\nGPIO_InitTypeDef GPIO_InitStructure;<\/span><\/p>\n

\/* \u9ed8\u8ba4\u914d\u7f6e\u7ed3\u6784\u4f53 *\/<\/span>
\ntypedef<\/span> struct<\/span> {<\/span>
\n GPIOMode_TypeDef mode;<\/span>
\n GPIOOType_TypeDef type;<\/span>
\n GPIOPuPd_TypeDef pupd;<\/span>
\n GPIOSpeed_TypeDef speed;<\/span>
\n}<\/span> GPIO_Config;<\/span><\/p>\n

\/* \u9ed8\u8ba4\u914d\u7f6e\u5b9a\u4e49 *\/<\/span>
\nGPIO_Config gpio_default_config =<\/span> {<\/span>
\n .<\/span>mode =<\/span> GPIO_Mode_OUT,<\/span>
\n .<\/span>type =<\/span> GPIO_OType_PP,<\/span>
\n .<\/span>pupd =<\/span> GPIO_PuPd_NOPULL,<\/span>
\n .<\/span>speed =<\/span> GPIO_Speed_100MHz
\n}<\/span>;<\/span><\/p>\n

\/* \u5f53\u524d\u914d\u7f6e*\/<\/span>
\nstatic<\/span> GPIO_Config *<\/span>current_config =<\/span> &<\/span>gpio_default_config;<\/span><\/p>\n

\/* \u5f53\u524d\u5f15\u811a\u4fe1\u606f*\/<\/span>
\nstatic<\/span> struct<\/span> {<\/span>
\n GPIO_TypeDef*<\/span> GPIOx;<\/span>
\n uint16_t<\/span> GPIO_Pin_x;<\/span>
\n uint8_t<\/span> clock_enabled;<\/span> \/* \u65f6\u949f\u662f\u5426\u5df2\u4f7f\u80fd *\/<\/span>
\n}<\/span> current_pin_info =<\/span> {<\/span>NULL<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>}<\/span>;<\/span><\/p>\n

\/**
\n * @brief \u5f00\u59cb\u914d\u7f6e\u4e00\u4e2a\u65b0\u7684GPIO\u5f15\u811a（\u81ea\u52a8\u91cd\u7f6e\u4e3a\u9ed8\u8ba4\u914d\u7f6e）
\n * @param GPIOx: GPIO\u7aef\u53e3
\n * @param GPIO_Pin_x: GPIO\u5f15\u811a
\n * @note \u81ea\u52a8\u91cd\u7f6e\u4e3a\u9ed8\u8ba4\u914d\u7f6e，\u5e76\u8bb0\u5f55\u5f15\u811a\u4fe1\u606f
\n *\/<\/span>
\nvoid<\/span> gpio_config_begin<\/span>(<\/span>GPIO_TypeDef *<\/span>GPIOx,<\/span> uint16_t<\/span> GPIO_Pin_x)<\/span>
\n{<\/span>
\n \/* \u91cd\u7f6e\u4e3a\u9ed8\u8ba4\u914d\u7f6e *\/<\/span>
\n current_config =<\/span> &<\/span>gpio_default_config;<\/span><\/p>\n

\/* \u8bb0\u5f55\u5f15\u811a\u4fe1\u606f *\/<\/span>
\n current_pin_info.<\/span>GPIOx =<\/span> GPIOx;<\/span>
\n current_pin_info.<\/span>GPIO_Pin_x =<\/span> GPIO_Pin_x;<\/span>
\n current_pin_info.<\/span>clock_enabled =<\/span> 0<\/span>;<\/span>
\n}<\/span><\/p>\n

\/**
\n * @brief \u8bbe\u7f6eGPIO\u6a21\u5f0f
\n * @param mode: GPIO\u6a21\u5f0f
\n *\/<\/span>
\nvoid<\/span> gpio_set_mode<\/span>(<\/span>GPIOMode_TypeDef mode)<\/span>
\n{<\/span>
\n current_config-><\/span>mode =<\/span> mode;<\/span>
\n}<\/span><\/p>\n

\/**
\n * @brief \u8bbe\u7f6eGPIO\u8f93\u51fa\u7c7b\u578b（\u4ec5\u5bf9\u8f93\u51fa\u548c\u590d\u7528\u6a21\u5f0f\u6709\u6548）
\n * @param type: GPIO\u8f93\u51fa\u7c7b\u578b
\n *\/<\/span>
\nvoid<\/span> gpio_set_output_type<\/span>(<\/span>GPIOOType_TypeDef type)<\/span>
\n{<\/span>
\n current_config-><\/span>type =<\/span> type;<\/span>
\n}<\/span><\/p>\n

\/**
\n * @brief \u8bbe\u7f6eGPIO\u4e0a\u4e0b\u62c9\u7535\u963b
\n * @param pupd: GPIO\u4e0a\u4e0b\u62c9\u914d\u7f6e
\n *\/<\/span>
\nvoid<\/span> gpio_set_pupd<\/span>(<\/span>GPIOPuPd_TypeDef pupd)<\/span>
\n{<\/span>
\n current_config-><\/span>pupd =<\/span> pupd;<\/span>
\n}<\/span><\/p>\n

\/**
\n * @brief \u8bbe\u7f6eGPIO\u901f\u5ea6
\n * @param speed: GPIO\u901f\u5ea6
\n *\/<\/span>
\nvoid<\/span> gpio_set_speed<\/span>(<\/span>GPIOSpeed_TypeDef speed)<\/span>
\n{<\/span>
\n current_config-><\/span>speed =<\/span> speed;<\/span>
\n}<\/span><\/p>\n

\/**
\n * @brief \u5e94\u7528\u914d\u7f6e\u5230\u786c\u4ef6（\u6267\u884cGPIO_Init）
\n * @note \u4f7f\u80fd\u65f6\u949f，\u6267\u884cGPIO\u521d\u59cb\u5316，\u7136\u540e\u81ea\u52a8\u91cd\u7f6e\u5185\u90e8\u72b6\u6001
\n *\/<\/span>
\nvoid<\/span> gpio_config_apply<\/span>(<\/span>void<\/span>)<\/span>
\n{<\/span>
\n if<\/span> (<\/span>current_pin_info.<\/span>GPIOx ==<\/span> NULL<\/span>)<\/span> {<\/span>
\n return<\/span>;<\/span> \/* \u5f15\u811a\u4fe1\u606f\u65e0\u6548，\u672a\u8c03\u7528gpio_config_begin *\/<\/span>
\n }<\/span><\/p>\n

\/* \u4f7f\u80fdGPIO\u65f6\u949f *\/<\/span>
\n if<\/span> (<\/span>!<\/span>current_pin_info.<\/span>clock_enabled)<\/span> {<\/span>
\n GPIO_CLOCK_ENABLE<\/span>(<\/span>current_pin_info.<\/span>GPIOx)<\/span>;<\/span>
\n current_pin_info.<\/span>clock_enabled =<\/span> 1<\/span>;<\/span>
\n }<\/span><\/p>\n

\/* \u914d\u7f6eGPIO\u521d\u59cb\u5316\u7ed3\u6784\u4f53 *\/<\/span>
\n GPIO_InitTypeDef GPIO_InitStructure;<\/span><\/p>\n

GPIO_InitStructure.<\/span>GPIO_Mode =<\/span> current_config-><\/span>mode;<\/span>
\n GPIO_InitStructure.<\/span>GPIO_Pin =<\/span> current_pin_info.<\/span>GPIO_Pin_x;<\/span>
\n GPIO_InitStructure.<\/span>GPIO_PuPd =<\/span> current_config-><\/span>pupd;<\/span>
\n GPIO_InitStructure.<\/span>GPIO_Speed =<\/span> current_config-><\/span>speed;<\/span><\/p>\n

\/* \u4ec5\u5bf9\u8f93\u51fa\u6a21\u5f0f\u548c\u590d\u7528\u6a21\u5f0f\u8bbe\u7f6e\u8f93\u51fa\u7c7b\u578b *\/<\/span>
\n if<\/span> (<\/span>current_config-><\/span>mode ==<\/span> GPIO_Mode_OUT ||<\/span>
\n current_config-><\/span>mode ==<\/span> GPIO_Mode_AF)<\/span> {<\/span>
\n GPIO_InitStructure.<\/span>GPIO_OType =<\/span> current_config-><\/span>type;<\/span>
\n }<\/span><\/p>\n

\/* \u6267\u884c\u521d\u59cb\u5316 *\/<\/span>
\n GPIO_Init<\/span>(<\/span>current_pin_info.<\/span>GPIOx,<\/span> &<\/span>GPIO_InitStructure)<\/span>;<\/span><\/p>\n

\/* \u91cd\u7f6e\u5185\u90e8\u72b6\u6001*\/<\/span>
\n current_pin_info.<\/span>GPIOx =<\/span> NULL<\/span>;<\/span>
\n current_pin_info.<\/span>GPIO_Pin_x =<\/span> 0<\/span>;<\/span>
\n current_pin_info.<\/span>clock_enabled =<\/span> 0<\/span>;<\/span>
\n}<\/span><\/p>\n

**\u6ce8\u610f：**\u5728\u4f7f\u7528\u4e0a\u9762\u7684gpio\u914d\u7f6e\u4f7f，\u5fc5\u987b\u4ee5gpio_config_begin\u8fd9\u4e2a\u51fd\u6570\u5f00\u59cb，\u5fc5\u987b\u4ee5gpio_config_apply\u8fd9\u4e2a\u51fd\u6570\u7ed3\u675f，\u624d\u80fd\u5b8c\u6210\u5bf9\u4e00\u4e2agpio\u7684\u914d\u7f6e！！！<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5173\u4e8e\u5355\u7247\u673a\u6309\u952e\u975e\u963b\u585e\u68c0\u6d4b\u7684\u4e00\u79cd\u65b9\u6cd5
\n\u6309\u952e\u4f5c\u4e3a\u4e00\u79cd\u5f00\u5173\u578b\u7684\u786c\u4ef6\u5916\u8bbe，\u5728\u5927\u90e8\u5206\u7684\u5d4c\u5165\u5f0f\u5355\u7247\u673a\u8f6f\u4ef6\u5f00\u53d1\u4e2d\u90fd\u4f1a\u4f7f\u7528\u5230\u3002\u4f46\u662f，\u5355\u7247\u673a\u7684\u5f00\u53d1\u5f88\u591a\u65f6\u5019\u90fd\u662f\u88f8\u673a\u5f00\u53d1，\u51e0\u4e4e\u7528\u4e0d\u5230RTOS，\u88f8\u673a\u5f00\u53d1\u8bf4\u660e\u5355\u7247\u673a\u662f\u6309\u987a\u5e8f\u6267\u884c\u7684，\u662f\u4e2a\u5355\u7ebf\u7a0b\u7cfb\u7edf，\u800c\u6309\u952e\u68c0\u6d4b\u9700\u8981\u8fdb\u884c\u6d88\u6296，\u6d88\u6296\u662f\u9700\u8981\u7b49\u5f85\u7684，\u5728\u88f8\u673a\u7cfb\u7edf\u4e2d，\u5c31\u4f1a\u9020\u6210\u963b\u585e，\u5bfc\u81f4\u7cfb\u7edf\u6027\u80fd\u4e0b\u964d\u3002
\n\u4e0b\u9762，\u662f\u4e00\u4e2a<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[822,270],"topic":[],"class_list":["post-66611","post","type-post","status-publish","format-standard","hentry","category-server","tag-mcu","tag-270"],"yoast_head":"\n\u5173\u4e8e\u5355\u7247\u673a\u6309\u952e\u975e\u963b\u585e\u65b9\u5f0f\u89e6\u53d1\u7684\u4e00\u79cd\u65b9\u6cd5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/66611.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5173\u4e8e\u5355\u7247\u673a\u6309\u952e\u975e\u963b\u585e\u65b9\u5f0f\u89e6\u53d1\u7684\u4e00\u79cd\u65b9\u6cd5 - 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