58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
#include "key.h"
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#include "btn.h"
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#define INVALID_BUTTON_TICKS 200 // 无效按键时间 毫秒
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static uint32_t key_start_ticks = 0;
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/* 按钮 */
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struct Button key_1;
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struct Button key_2;
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struct Button key_3;
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struct Button key_4;
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struct Button key_5;
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struct Button key_6;
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static BOOL allow_condition(void)
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{
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/**
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* key的初始化在LCD板子上电之前，因为是低电平有效，所以会误判为按键按下
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*/
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if (sys_millis() - key_start_ticks < INVALID_BUTTON_TICKS) // 仿真的时候按键会有毛刺，在xx秒之后按下有效
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{
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return FALSE;
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}
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return TRUE;
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}
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static uint8_t read_button_gpio(button_id_e button_id)
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{
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if (allow_condition() == FALSE)
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{
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return ACTIVE_LEVEL_HIGH;
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}
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switch (button_id)
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{
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case KEY_1:
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return GPIO_READ(KEY_1_GPIO_Port, KEY_1_Pin);
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default:
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return ACTIVE_LEVEL_LOW;
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}
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}
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static void key_1_press_down_handler(void *btn)
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{
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key_1_callback(PRESS_DOWN);
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}
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void key_init(void)
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{
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key_start_ticks = sys_millis();
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GPIO_SET_INPUT(KEY_1_GPIO_Port, KEY_1_Pin);
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button_init(&key_1, read_button_gpio, ACTIVE_LEVEL_LOW, KEY_1, KEY_1);
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button_attach(&key_1, PRESS_DOWN, key_1_press_down_handler);
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button_start(&key_1);
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}
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