标题: DP83848与STM32F4进行网络通信原理图源程序 [打印本页]
作者: 13793997002    时间: 2019-10-12 15:18
标题: DP83848与STM32F4进行网络通信原理图源程序
DP83848与STM32F4进行网络通信电路原理图如下：


单片机源程序如下:
  1. /* Includes ------------------------------------------------------------------*/
  2. #include "stm32f4x7_eth.h"
  3. #include "netconf.h"
  4. #include "main.h"
  5. #include "lwip/tcp.h"
  6. #include "serial_debug.h"
  7. #include "udp_echoclient.h"

  9. /* Private typedef -----------------------------------------------------------*/
  10. /* Private define ------------------------------------------------------------*/
  11. #define SYSTEMTICK_PERIOD_MS  10

  13. /*--------------- LCD Messages ---------------*/
  14. //#if defined (STM32F40XX)
  15. //#define MESSAGE1   "    STM32F40/41x     "
  16. //#elif defined (STM32F427X)
  17. //#define MESSAGE1   "     STM32F427x      "
  18. //#endif
  19. //#define MESSAGE2   "  STM32F-4 Series   "
  20. //#define MESSAGE3   " UDP echoclient Demo"
  21. //#define MESSAGE4   "                    "

  23. /* Private macro -------------------------------------------------------------*/
  24. /* Private variables ---------------------------------------------------------*/
  25. __IO uint32_t LocalTime = 0; /* this variable is used to create a time reference incremented by 10ms */
  26. uint32_t timingdelay;

  28. /* Private function prototypes -----------------------------------------------*/
  29. //void LCD_LED_BUTTON_Init(void);

  31. /* Private functions ---------------------------------------------------------*/

  33. /**
  34.   * @brief  Main program.
  35.   * @param  None
  36.   * @retval None
  37.   */
  38. int main(void)
  39. {
  40.   /*!< At this stage the microcontroller clock setting is already configured to
  41.        168 MHz, this is done through SystemInit() function which is called from
  42.        startup file (startup_stm32f4xx.s) before to branch to application main.
  43.        To reconfigure the default setting of SystemInit() function, refer to
  44.        system_stm32f4xx.c file
  45.      */

  47.   NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);

  49. //#ifdef SERIAL_DEBUG
  50. //  DebugComPort_Init();
  51. //#endif

  53. //  /*Initialize LCD and Leds */
  54. //  LCD_LED_BUTTON_Init();

  56.   /* Configure ethernet (GPIOs, clocks, MAC, DMA) */
  57.   ETH_BSP_Config();

  59.   /* Initilaize the LwIP stack */
  60.   LwIP_Init();

  62.   /* Infinite loop */
  63.   while (1)
  64.   {  
  65.                
  66.     /* check if any packet received */
  67.     if (ETH_CheckFrameReceived())
  68.     {
  69.       /* process received ethernet packet */
  70.       LwIP_Pkt_Handle();
  71.     }
  72.     /* handle periodic timers for LwIP */
  73.     LwIP_Periodic_Handle(LocalTime);
  74.          udp_echoclient_connect();
  75.   }
  76. }

  78. /**
  79.   * @brief  Inserts a delay time.
  80.   * @param  nCount: number of 10ms periods to wait for.
  81.   * @retval None
  82.   */
  83. void Delay(uint32_t nCount)
  84. {
  85.   /* Capture the current local time */
  86.   timingdelay = LocalTime + nCount;  

  88.   /* wait until the desired delay finish */
  89.   while(timingdelay > LocalTime)
  90.   {     
  91.   }
  92. }

  94. /**
  95.   * @brief  Updates the system local time
  96.   * @param  None
  97.   * @retval None
  98.   */
  99. void Time_Update(void)
  100. {
  101.   LocalTime += SYSTEMTICK_PERIOD_MS;
  102. }

  104. ///**
  105. //  * @brief  Initializes STM324xG-EVAL's LCD, LEDs and push-buttons resources.
  106. //  * @param  None
  107. //  * @retval None
  108. //  */
  109. //void LCD_LED_BUTTON_Init(void)
  110. //{
  111. //#ifdef USE_LCD
  112. //  /* Initialize the STM324xG-EVAL's LCD */
  113. //  STM324xG_LCD_Init();
  114. //#endif

  116. //  /* Initialize STM324xG-EVAL's LEDs */
  117. //  STM_EVAL_LEDInit(LED1);
  118. //  STM_EVAL_LEDInit(LED2);
  119. //  STM_EVAL_LEDInit(LED3);
  120. //  STM_EVAL_LEDInit(LED4);

  122. //  /* Leds on */
  123. //  STM_EVAL_LEDOn(LED1);
  124. //  STM_EVAL_LEDOn(LED2);
  125. //  STM_EVAL_LEDOn(LED3);
  126. //  STM_EVAL_LEDOn(LED4);

  128. //#ifdef USE_LCD
  129. //  /* Clear the LCD */
  130. //  LCD_Clear(Black);

  132. //  /* Set the LCD Back Color */
  133. //  LCD_SetBackColor(Black);

  135. //  /* Set the LCD Text Color */
  136. //  LCD_SetTextColor(White);

  138. //  /* Display message on the LCD*/
  139. //  LCD_DisplayStringLine(Line0, (uint8_t*)MESSAGE1);
  140. //  LCD_DisplayStringLine(Line1, (uint8_t*)MESSAGE2);
  141. //  LCD_DisplayStringLine(Line2, (uint8_t*)MESSAGE3);
  142. //  LCD_DisplayStringLine(Line3, (uint8_t*)MESSAGE4);
  143. //#endif
  144. //  
  145. //  STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_EXTI);
  146. //}

  148. //#ifdef  USE_FULL_ASSERT

  150. ///**
  151. //  * @brief  Reports the name of the source file and the source line number
  152. //  *   where the assert_param error has occurred.
  153. //  * @param  file: pointer to the source file name
  154. //  * @param  line: assert_param error line source number
  155. //  * @retval None
  156. //  */
  157. //void assert_failed(uint8_t* file, uint32_t line)
  158. //{
  159. //  /* User can add his own implementation to report the file name and line number,
  160. //     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  162. //  /* Infinite loop */
  163. //  while (1)
  164. //  {}
  165. //}
  166. //#endif


  169. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
复制代码

所有资料51hei提供下载:
DP83848-ST(2).7z (1.22 MB, 下载次数: 84)
DP83848C原理图.pdf (173.89 KB, 下载次数: 66)


作者: crystaldoor    时间: 2020-1-2 09:38
看看，谢大佬分享
作者: fep931    时间: 2020-3-3 15:46
谢谢分享下载学习啊



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