2020-07-04 20:55:08 +08:00
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# CodeBrick
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2020-05-23 22:57:50 +08:00
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2020-06-27 12:04:25 +08:00
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## 介绍
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2020-07-04 20:55:08 +08:00
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一种无OS的单片机通用解决方案，包括任务轮询框架，命令管理器、低功耗管理、环形缓冲区等实用模块。
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2020-05-23 22:57:50 +08:00
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2020-06-27 12:04:25 +08:00
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### module模块
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时间轮询框架，使用例子：
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1.使用此模块前需要系统提供滴答定时器，用于驱动任务轮询作业
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2020-05-23 23:16:10 +08:00
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2020-06-27 12:04:25 +08:00
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```
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//定时器中断(提供系统滴答)
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void timer_interrupt(void)
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{
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systick_increase(); //增加系统节拍
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}
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```
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2.任务初始化及注册(以按键扫描为例)
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```
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static void key_init(void)
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{
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/*do something*/
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}
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static void key_scan(void)
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{
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/*do something*/
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}
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module_init("key", key_init); //注册按键初始化接口
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task_register("key", key_scan, 20); //注册按键任务(20ms轮询1次)
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```
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### comdef模块
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包含常用宏定义,段定义、匿名类型等。
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### blink模块
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具有闪烁特性(led, motor, buzzer)的设备(led, motor, buzzer)管理
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使用之前有两个注意事项:
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- 需要系统提供滴答时钟，blick.c中是通过get_tick()接口获取，依赖module模块
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- 需要在任务中定时进行轮询
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```
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//主程序入口
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void main(void)
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{
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while (1) {
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blink_dev_process(); //定时轮询
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}
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}
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```
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或者通过"module"模块的任务注册来实现
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```
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task_register("blink", blink_dev_process, 50); //50ms轮询1次
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```
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***使用例子,以LED为例***
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```
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2020-06-28 23:08:33 +08:00
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blink_dev_t led; //定义led设备
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2020-06-27 12:04:25 +08:00
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/*
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*@brief 红色LED控制(GPIOA.8)
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*@param[in] on - 亮灭控制
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*/
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static void led_ctrl(int on)
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{
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if (on)
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GPIOA->ODR |= (1 << 8);
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else
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GPIOA->ODR &= ~(1 << 8);
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}
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/*
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*@brief led初始化程序
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*/
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void led_init(void)
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{
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led_io_init(void); //led io初始化
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2020-06-28 23:08:33 +08:00
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blink_dev_create(&led, led_ctrl); //创建led设备
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2020-06-27 12:04:25 +08:00
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blink_dev_ctrl(&led, 50, 100, 0); //快闪(50ms亮, 100ms灭)
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}
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```
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### 按键管理模块
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类似blink模块，使用之前有两个注意事项:
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- 需要系统提供滴答时钟，key.c中是通过get_tick()接口获取，依赖module模块
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- 需要在任务中定时进行轮询
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```
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key_t key; //定义按键管理器
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/*
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*@brief 按键事件
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*@param[in] type - 按键类型(KEY_PRESS, KEY_LONG_DOWN, KEY_LONG_UP)
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*@param[in] duration - 长按持续时间
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*/
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void key_event(int type, unsigned int duration)
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{
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if (type == KEY_PRESS) { //短按
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} else if (type == KEY_LONG_DOWN) { //长按
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}
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}
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//读取键值(假设按键输出口为STM32 MCU PA8)
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int read_key(void)
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{
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return GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_8) == Bit_RESET;
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}
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/*
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*@brief 按键初始化
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*/
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void key_init(void)
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{
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//打开GPIO 时钟
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
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//配置成输入模式
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gpio_conf(GPIOA, GPIO_Mode_IN, GPIO_PuPd_NOPULL, GPIO_Pin_8);
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//创建1个按键
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key_create(&key, read_key, key_event);
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}
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```
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