1 /*
2 * Copyright (c) 2022-2024, Xiaohua Semiconductor Co., Ltd.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 * 2024-12-30 CDT first version
9 */
10
11 /*
12 * 程序清单：这是一个 PIN 设备使用例程
13 * 例程导出了 pin_sample 命令到控制终端
14 * 命令调用格式：pin_sample
15 * 程序功能：通过按键控制LED引脚的电平状态
16 */
17
18 #include <rtthread.h>
19 #include <rtdevice.h>
20 #include "board_config.h"
21
22 #if defined(BSP_USING_GPIO)
23 #include "drv_gpio.h"
24
25 /* 1）配置RTT工程
26 * menuconfig:
27 * Hardware Drivers Config ---> Onboard Peripheral Drivers ----> Enable TCA9539
28 */
29 #if defined(HC32F460)
30 #define LED1_PIN_NUM GET_PIN(D, 3) /* LED0 */
31 #define KEY1_PIN_NUM GET_PIN(B, 1) /* K10 */
32 #elif defined(HC32F4A0) || defined(HC32F4A8)
33 #define LED1_PIN_NUM GET_PIN(B, 11) /* LED10 */
34 #define KEY1_PIN_NUM GET_PIN(A, 0) /* K10 */
35 #elif defined(HC32F448)
36 #define LED1_PIN_NUM GET_PIN(A, 2) /* LED3 */
37 #define KEY1_PIN_NUM GET_PIN(B, 6) /* K5 */
38 #elif defined(HC32F472)
39 #define LED1_PIN_NUM GET_PIN(C, 9) /* LED5 */
40 #define KEY1_PIN_NUM GET_PIN(B, 5) /* K10 */
41 #elif defined(HC32F334)
42 #define LED1_PIN_NUM GET_PIN(C, 13) /* LED1 */
43 #define KEY1_PIN_NUM GET_PIN(C, 3) /* K1 */
44 #endif
45
46 static uint8_t u8LedState = 1;
47
led_control(void * args)48 void led_control(void *args)
49 {
50 u8LedState = !u8LedState;
51 if (0 == u8LedState)
52 {
53 rt_pin_write(LED1_PIN_NUM, PIN_LOW);
54 }
55 else
56 {
57 rt_pin_write(LED1_PIN_NUM, PIN_HIGH);
58 }
59 }
60
pin_sample(void)61 static void pin_sample(void)
62 {
63 /* LED引脚为输出模式 */
64 rt_pin_mode(LED1_PIN_NUM, PIN_MODE_OUTPUT);
65 /* 默认高电平 */
66 rt_pin_write(LED1_PIN_NUM, PIN_HIGH);
67
68 /* 按键1引脚为输入模式 */
69 rt_pin_mode(KEY1_PIN_NUM, PIN_MODE_INPUT_PULLUP);
70 /* 绑定中断，下降沿模式，回调函数名为led_control */
71 // rt_pin_attach_irq(KEY1_PIN_NUM, PIN_IRQ_MODE_RISING, led_control, RT_NULL);
72 // rt_pin_attach_irq(KEY1_PIN_NUM, PIN_IRQ_MODE_FALLING, led_control, RT_NULL);
73 rt_pin_attach_irq(KEY1_PIN_NUM, PIN_IRQ_MODE_RISING_FALLING, led_control, RT_NULL);
74 /* 使能中断 */
75 rt_pin_irq_enable(KEY1_PIN_NUM, PIN_IRQ_ENABLE);
76 }
77 /* 导出到 msh 命令列表中 */
78 MSH_CMD_EXPORT(pin_sample, pin sample);
79
80 #endif
81