ModBus-Master-master stm32F4XX源程序

    stm32F4XX modbus

单片机源程序如下:

1. 
   
2. /* Includes ------------------------------------------------------------------*/
   
3. #include "main.h"
   
4. #include "stm32f0xx_hal.h"
   
5. #include "modbus_master.h"
   
6. /* USER CODE BEGIN Includes */
   
7. 
   
8. /* USER CODE END Includes */
   
9. 
   
10. /* Private variables ---------------------------------------------------------*/
    
11. UART_HandleTypeDef huart2;
    
12. 
    
13. /* USER CODE BEGIN PV */
    
14. /* Private variables ---------------------------------------------------------*/
    
15. 
    
16. /* USER CODE END PV */
    
17. 
    
18. /* Private function prototypes -----------------------------------------------*/
    
19. void SystemClock_Config(void);
    
20. static void MX_GPIO_Init(void);
    
21. static void MX_USART2_UART_Init(void);
    
22. 
    
23. /* USER CODE BEGIN PFP */
    
24. /* Private function prototypes -----------------------------------------------*/
    
25. 
    
26. /* USER CODE END PFP */
    
27. 
    
28. /* USER CODE BEGIN 0 */
    
29. 
    
30. /* USER CODE END 0 */
    
31. 
    
32. int main(void)
    
33. {
    
34.   uint8_t state=0;
    
35.         uint16_t  Input_Result[2];
    
36.   HAL_Init();
    
37.   SystemClock_Config();
    
38.   MX_GPIO_Init();
    
39.         ModbusMaster_begin();
    
40.   MX_USART2_UART_Init();
    
41.   
    
42.   while (1)
    
43.   {
    
44.                 uint8_t result;
    
45.                 //测试Read Input Registers功能
    
46.                 //从机地址0x01 ,寄存器地址 0x02 ,连续读2个寄存器地址
    
47.                 result = ModbusMaster_readInputRegisters(0x01,0x2, 2);
    
48.                 if (result == 0x00)
    
49.                 {
    
50.                         Input_Result[0] = ModbusMaster_getResponseBuffer(0x00);
    
51.                         Input_Result[1] = ModbusMaster_getResponseBuffer(0x01);
    
52.                 }
    
53.                         HAL_Delay(1000);
    
54.   }
    
55. 
    
56. }
    
57. 
    
58. /** System Clock Configuration
    
59. */
    
60. void SystemClock_Config(void)
    
61. {
    
62. 
    
63.   RCC_OscInitTypeDef RCC_OscInitStruct;
    
64.   RCC_ClkInitTypeDef RCC_ClkInitStruct;
    
65. 
    
66.     /**Initializes the CPU, AHB and APB busses clocks
    
67.     */
    
68.   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48;
    
69.   RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
    
70.   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
    
71.   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
    
72.   {
    
73.     _Error_Handler(__FILE__, __LINE__);
    
74.   }
    
75. 
    
76.     /**Initializes the CPU, AHB and APB busses clocks
    
77.     */
    
78.   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
    
79.                               |RCC_CLOCKTYPE_PCLK1;
    
80.   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI48;
    
81.   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
    
82.   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
    
83. 
    
84.   if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
    
85.   {
    
86.     _Error_Handler(__FILE__, __LINE__);
    
87.   }
    
88. 
    
89.     /**Configure the Systick interrupt time
    
90.     */
    
91.   HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
    
92. 
    
93.     /**Configure the Systick
    
94.     */
    
95.   HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
    
96. 
    
97.   /* SysTick_IRQn interrupt configuration */
    
98.   HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
    
99. }
    
100. 
     
101. /* USART2 init function */
     
102. static void MX_USART2_UART_Init(void)
     
103. {
     
104. 
     
105.   huart2.Instance = USART2;
     
106.   huart2.Init.BaudRate = 115200;
     
107.   huart2.Init.WordLength = UART_WORDLENGTH_8B;
     
108.   huart2.Init.StopBits = UART_STOPBITS_1;
     
109.   huart2.Init.Parity = UART_PARITY_NONE;
     
110.   huart2.Init.Mode = UART_MODE_TX_RX;
     
111.   huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
     
112.   huart2.Init.OverSampling = UART_OVERSAMPLING_16;
     
113.   huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
     
114.   huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
     
115.   if (HAL_UART_Init(&huart2) != HAL_OK)
     
116.   {
     
117.     _Error_Handler(__FILE__, __LINE__);
     
118.   }
     
119.   __HAL_UART_ENABLE_IT(&huart2,UART_IT_RXNE);
     
120. }
     
121. 
     
122. /** Configure pins as
     
123.         * Analog
     
124.         * Input
     
125.         * Output
     
126.         * EVENT_OUT
     
127.         * EXTI
     
128. */
     
129. static void MX_GPIO_Init(void)
     
130. {
     
131. 
     
132.   /* GPIO Ports Clock Enable */
     
133.   __HAL_RCC_GPIOA_CLK_ENABLE();
     
134. 
     
135. }
     
136. 
     
137. /* USER CODE BEGIN 4 */
     
138. 
     
139. /* USER CODE END 4 */
     
140. 
     
141. /**
     
142.   * @brief  This function is executed in case of error occurrence.
     
143.   * @param  None
     
144.   * @retval None
     
145.   */
     
146. void _Error_Handler(char * file, int line)
     
147. {
     
148.   /* USER CODE BEGIN Error_Handler_Debug */
     
149.   /* User can add his own implementation to report the HAL error return state */
     
150.   while(1)
     
151.   {
     
152.   }
     
153.   /* USER CODE END Error_Handler_Debug */
     
154. }
     
155. 
     
156. #ifdef USE_FULL_ASSERT
     
157. 
     
158. /**
     
159.    * @brief Reports the name of the source file and the source line number
     
160.    * where the assert_param error has occurred.
     
161.    * @param file: pointer to the source file name
     
162.    * @param line: assert_param error line source number
     
163.    * @retval None
     
164.    */
     
165. void assert_failed(uint8_t* file, uint32_t line)
     
166. {
     
167.   /* USER CODE BEGIN 6 */
     
168.   /* User can add his own implementation to report the file name and line number,
     
169.     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
     
170.   /* USER CODE END 6 */
     
171. 
     
172. }
     
173. 
     
174. #endif
     
175. 
     
176. /**
     
177.   * @}
     
178.   */
     
179. 
     
180. /**
     
181.   * @}
     
182. */
     
183. 
     
184. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
     
185. 
     

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ModBus-Master-master.7z (1.19 MB, 下载次数: 40)

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