stm32 的modbus協議測試源程序如下:
- /**
- ******************************************************************************
- * @文件 ：MODBUS RTU通信協議
- * @作者 ：藍照電子科技
- * @版本 ：LZKJ_V2.0
- * @概要 : 通信口USART1(PA9\PA10) 9600，8，0，1
- ******************************************************************************
- */
- /* 頭文件 --------------------------------------------------------------*/
- #include <stdio.h>
- #include "stm32f10x.h"
- #include "mb.h"
- /* 私有數據類型 --------------------------------------------------------------*/
- /* 私有定義 --------------------------------------------------------------*/
- /* 私有宏定義 --------------------------------------------------------------*/
- #ifdef __GNUC__
- #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
- #else
- #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
- #endif /* __GNUC__ */
- /* 私有變量 --------------------------------------------------------------*/
- /* 私有函數聲明 --------------------------------------------------------------*/
- void LED_Config(void)
- {
- GPIO_InitTypeDef GPIO_InitStructure;
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(GPIOC,&GPIO_InitStructure);
- }
- /**
- * @brief Configure the nested vectored interrupt controller.
- * @param None
- * @retval : None
- */
- void NVIC_Configuration(void)
- {
- NVIC_InitTypeDef NVIC_InitStructure;
- /* Enable the TIM2 gloabal Interrupt */
- NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
- NVIC_Init(&NVIC_InitStructure);
- /* Enable the TIM2 gloabal Interrupt */
- NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
- NVIC_Init(&NVIC_InitStructure);
- }
- /**
- * @功能
- * @參數
- * @返回值
- */
- int main(void)
- {
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
- NVIC_Configuration();
- LED_Config();
-
- /*模式 從機地址 端口 波特率 校驗位*/
- eMBInit( MB_RTU, 0x01, 0, 9600, MB_PAR_NONE );
-
- /* Enable the Modbus Protocol Stack. */
- eMBEnable( );
-
- for( ;; )
- {
- ( void )eMBPoll( );
- /* Here we simply count the number of poll cycles. */
- //usRegInputBuf[0]++;
- }
- }
- /**
- * @brief Retargets the C library printf function to the USART.
- * @param None
- * @retval None
- */
- PUTCHAR_PROTOTYPE
- {
- /* Place your implementation of fputc here */
- /* Loop until the end of transmission */
- while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET)
- {}
- /* e.g. write a character to the USART */
- USART_SendData(USART1, (uint8_t) ch);
- return ch;
- }
- #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 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) */
- /* Infinite loop */
- while (1)
- {
- }
- }
- #endif
- /**
- * @}
- */
- /*******************************文件結尾**************************************/
- ……………………
- …………限于本文篇幅 余下代碼請從51黑下載附件…………
所有資料51hei提供下載:
STM32-MODBUS標準通信協議測試_MY.rar
(321.61 KB, 下載次數: 225)
2018-4-30 15:09 上傳
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