mirror of
https://gitee.com/beecue/fastbee.git
synced 2025-12-17 16:36:03 +08:00
[update] 增加STM32智慧宿舍基础代码
This commit is contained in:
120
firmware/stm32/smart_dormitory/User/MultiButton/README.md
Normal file
120
firmware/stm32/smart_dormitory/User/MultiButton/README.md
Normal file
@@ -0,0 +1,120 @@
|
||||
# MultiButton
|
||||
|
||||
## 简介
|
||||
MultiButton 是一个小巧简单易用的事件驱动型按键驱动模块,可无限量扩展按键,按键事件的回调异步处理方式可以简化你的程序结构,去除冗余的按键处理硬编码,让你的按键业务逻辑更清晰。
|
||||
|
||||
## 使用方法
|
||||
1.先申请一个按键结构
|
||||
|
||||
```c
|
||||
struct Button button1;
|
||||
```
|
||||
2.初始化按键对象,绑定按键的GPIO电平读取接口**read_button_pin()** ,后一个参数设置有效触发电平
|
||||
|
||||
```c
|
||||
button_init(&button1, read_button_pin, 0);
|
||||
```
|
||||
3.注册按键事件
|
||||
|
||||
```c
|
||||
button_attach(&button1, SINGLE_CLICK, Callback_SINGLE_CLICK_Handler);
|
||||
button_attach(&button1, DOUBLE_CLICK, Callback_DOUBLE_Click_Handler);
|
||||
...
|
||||
```
|
||||
4.启动按键
|
||||
|
||||
```c
|
||||
button_start(&button1);
|
||||
```
|
||||
5.设置一个5ms间隔的定时器循环调用后台处理函数
|
||||
|
||||
```c
|
||||
while(1) {
|
||||
...
|
||||
if(timer_ticks == 5) {
|
||||
timer_ticks = 0;
|
||||
|
||||
button_ticks();
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
## 特性
|
||||
|
||||
MultiButton 使用C语言实现,基于面向对象方式设计思路,每个按键对象单独用一份数据结构管理:
|
||||
|
||||
```c
|
||||
struct Button {
|
||||
uint16_t ticks;
|
||||
uint8_t repeat: 4;
|
||||
uint8_t event : 4;
|
||||
uint8_t state : 3;
|
||||
uint8_t debounce_cnt : 3;
|
||||
uint8_t active_level : 1;
|
||||
uint8_t button_level : 1;
|
||||
uint8_t (*hal_button_Level)(void);
|
||||
BtnCallback cb[number_of_event];
|
||||
struct Button* next;
|
||||
};
|
||||
```
|
||||
这样每个按键使用单向链表相连,依次进入 button_handler(struct Button* handle) 状态机处理,所以每个按键的状态彼此独立。
|
||||
|
||||
|
||||
## 按键事件
|
||||
|
||||
事件 | 说明
|
||||
---|---
|
||||
PRESS_DOWN | 按键按下,每次按下都触发
|
||||
PRESS_UP | 按键弹起,每次松开都触发
|
||||
PRESS_REPEAT | 重复按下触发,变量repeat计数连击次数
|
||||
SINGLE_CLICK | 单击按键事件
|
||||
DOUBLE_CLICK | 双击按键事件
|
||||
LONG_PRESS_START | 达到长按时间阈值时触发一次
|
||||
LONG_PRESS_HOLD | 长按期间一直触发
|
||||
|
||||
|
||||
## Examples
|
||||
|
||||
```c
|
||||
#include "button.h"
|
||||
|
||||
struct Button btn1;
|
||||
|
||||
int read_button1_GPIO()
|
||||
{
|
||||
return HAL_GPIO_ReadPin(B1_GPIO_Port, B1_Pin);
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
button_init(&btn1, read_button1_GPIO, 0);
|
||||
button_attach(&btn1, PRESS_DOWN, BTN1_PRESS_DOWN_Handler);
|
||||
button_attach(&btn1, PRESS_UP, BTN1_PRESS_UP_Handler);
|
||||
button_attach(&btn1, PRESS_REPEAT, BTN1_PRESS_REPEAT_Handler);
|
||||
button_attach(&btn1, SINGLE_CLICK, BTN1_SINGLE_Click_Handler);
|
||||
button_attach(&btn1, DOUBLE_CLICK, BTN1_DOUBLE_Click_Handler);
|
||||
button_attach(&btn1, LONG_PRESS_START, BTN1_LONG_PRESS_START_Handler);
|
||||
button_attach(&btn2, LONG_PRESS_HOLD, BTN1_LONG_PRESS_HOLD_Handler);
|
||||
button_start(&btn1);
|
||||
|
||||
//make the timer invoking the button_ticks() interval 5ms.
|
||||
//This function is implemented by yourself.
|
||||
__timer_start(button_ticks, 0, 5);
|
||||
|
||||
while(1)
|
||||
{}
|
||||
}
|
||||
|
||||
void BTN1_PRESS_DOWN_Handler(void* btn)
|
||||
{
|
||||
//do something...
|
||||
}
|
||||
|
||||
void BTN1_PRESS_UP_Handler(void* btn)
|
||||
{
|
||||
//do something...
|
||||
}
|
||||
|
||||
...
|
||||
```
|
||||
|
||||
Reference in New Issue
Block a user