概述
cmd-parser是一个资源占用极小的命令解析器，并遵循 Apache License v2.0 开源协议。
GitHub：https://github.com/jiejieTop/cmd-parser
优点：
- 用户无需关心命令的存储区域与大小，由编译器静态分配。
- 加入哈希算法超快速匹配命令，时间复杂度从O(n*m)变为O(n)。
- 命令支持忽略大小写。
- 非常易用与非常简洁的代码（不足150行）。
硬件：STM32F103CBT6最小系统板
软件：Keil 5.29 + STM32CubeMX6.01
一、使用方法
- 注册命令
在工程中的任意位置均可调用（在函数外）
REGISTER_CMD(test1, test1_cmd);
- cmd初始化
cmd_init();
- 解析命令
cmd_parsing("test1");
特色
- 用户无需关心命令的存储区域与大小，由编译器静态分配。
- 加入哈希算法超快速匹配命令，时间复杂度从O(n*m)变为O(n)。
- 命令支持忽略大小写。
- 非常易用与非常简洁的代码（不足150行）。
注意事项
- 本代码目前只支持
MDK
IAR
gcc
test.c
#include "cmd.h"
void test1_cmd(void)
{
printf("test1_cmd\n");
}
void test2_cmd(void)
{
printf("test2_cmd\n");
}
void test3_cmd(void)
{
printf("test3_cmd\n");
}
REGISTER_CMD(test1, test1_cmd);
REGISTER_CMD(test2, test2_cmd);
REGISTER_CMD(test3, test3_cmd);
int main(void)
{
cmd_init();
while (1)
{
cmd_parsing("test1");
cmd_parsing("test2");
cmd_parsing("test3");
}
return 0;
}
二、STM32CubeMx配置
三、Examples
1、进入GitHub拉取源码
2、打开STM32CubeMx生成的keil工程，新建bsp文件夹，按照如下步骤进行。
3、把所有.c文件添加到Keil中来。
4、添加头文件路径
5、编译工程
6、解决报错问题
7、main.c文件
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2021 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "usart.h"
#include "gpio.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "stdio.h"
#include "cmd.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
#define ENABLE 0
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
#if ENABLE
#else
#define BUFSIZE 6
char recv_buf[BUFSIZE] = {0};
#endif
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
#if ENABLE
void test1_cmd(void)
{
printf("test1_cmd\n");
}
void test2_cmd(void)
{
printf("test2_cmd\n");
}
void test3_cmd(void)
{
printf("test3_cmd\n");
}
REGISTER_CMD(test1, test1_cmd,test1 demo);
REGISTER_CMD(test2, test2_cmd,test2 demo);
REGISTER_CMD(test3, test3_cmd,test3 demo);
#else
void led_on_cmd(void)
{
HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_RESET);
printf("led on!\n");
}
void led_off_cmd(void)
{
HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET);
printf("led off!\n");
}
REGISTER_CMD(ledonn, led_on_cmd, null);
REGISTER_CMD(ledoff, led_off_cmd, null);
#endif
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_USART1_UART_Init();
/* USER CODE BEGIN 2 */
printf("cmd parser testing...\r\n");
#if ENABLE
cmd_init();
#else
cmd_init();
HAL_UART_Receive_IT(&huart1, (uint8_t*)recv_buf, BUFSIZE);
#endif
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
#if ENABLE
cmd_parsing("_list");
cmd_parsing("test1");
cmd_parsing("test2");
cmd_parsing("test3");
HAL_Delay(1000);
#endif
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/* USER CODE BEGIN 4 */
#if ENABLE
#else
/* 中断回调函数 */
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
/* 判断是哪个串口触发的中断 */
if(huart ->Instance == USART1)
{
//解析数据
cmd_parsing((char*)recv_buf);
//重新使能串口接收中断
HAL_UART_Receive_IT(huart, (uint8_t*)recv_buf, BUFSIZE);
}
}
#endif
#ifdef __GNUC__
/* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
set to 'Yes') calls __io_putchar() */
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
/**
* @brief Retargets the C library printf function to the USART.
* @param None
* @retval None
*/
PUTCHAR_PROTOTYPE
{
/* Place your implementation of fputc here */
/* e.g. write a character to the EVAL_COM1 and Loop until the end of transmission */
HAL_UART_Transmit(&huart1, (uint8_t *)&ch, 1, 0xFFFF);
return ch;
}
int fgetc(FILE * f)
{
uint8_t ch = 0;
HAL_UART_Receive(&huart1, (uint8_t *)&ch, 1, 0xffff);
return ch;
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
四、运行结果
传送门->代码
参考文章：https://blog.csdn.net/Mculover666/article/details/106102372
五、总结
好了，就介绍到此，有了这个神器，特别适合Hash算法开发产品使用和一些自定义命令解析场景。