{"id":18216,"date":"2025-04-19T00:38:44","date_gmt":"2025-04-18T16:38:44","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/18216.html"},"modified":"2025-04-19T00:38:44","modified_gmt":"2025-04-18T16:38:44","slug":"cubemx%e5%ae%9e%e7%8e%b0lan8720alwipfreertostcp%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%88%9b%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/18216.html","title":{"rendered":"Cubemx\u5b9e\u73b0LAN8720A+LWIP+Freertos+tcp\u670d\u52a1\u5668\u521b\u5efa"},"content":{"rendered":"

\u4e00\u3001\u5b9e\u9a8c\u5e73\u53f0<\/h2>\n

\u7528\u7684STM32G431CBU6\u4e3b\u677f，\u4ee5\u592a\u7f51\u5361PHY\u5c42\u82af\u7247\u662fLAN8720A\u3002<\/p>\n

\u4e8c\u3001\u914d\u7f6e\u6b65\u9aa4<\/h2>\n

\u9009\u62e9\u82af\u7247\u5c31\u7565\u8fc7\u4e86，\u7b2c\u4e00\u6b65\u5148\u914d\u7f6e\u4e00\u4e2a\u4e32\u53e3，\u76f4\u63a5\u914d\u6210\u5f02\u6b65\u6a21\u5f0f，\u5176\u4ed6\u9ed8\u8ba4\u3002（\u65b9\u4fbf\u8c03\u8bd5\u7528，\u8bb0\u5f97\u7ed9\u4e32\u53e3\u7684\u5730\u7ebf\u63a5\u4e0a）<\/p>\n

\"\"<\/p>\n

\u56e0\u4e3a\u6dfb\u52a0\u4e86freertos\u5b9e\u65f6\u64cd\u4f5c\u7cfb\u7edf，\u800cfreertos\u7528\u7684\u662fsystick\u4f5c\u4e3a\u65f6\u949f\u6e90，\u6240\u4ee5\u8981\u5c06HAL\u5e93\u65f6\u949f\u6e90\u6539\u4e3a\u5176\u4ed6\u5b9a\u65f6\u5668\u3002<\/p>\n

\"\"<\/p>\n

RCC\u53ef\u4ee5\u4e0d\u914d\u7f6e，\u5982\u679c\u9700\u8981\u66f4\u9ad8\u9891\u7387\u4e5f\u53ef\u4ee5\u914d<\/p>\n

\u914d\u7f6eETH\u65f6，\u914d\u7f6e\u4e3aRMII（\u5176\u4ed6\u7684\u6ca1\u6709\u8bd5\u8fc7），\u6ce8\u610fMAC\u5730\u5740\u522b\u548c\u5176\u4ed6\u9700\u8981\u8054\u673a\u901a\u8baf\u5355\u7247\u673a\u91cd\u590d\u4e86，PHY Address\u8981\u6839\u636e\u82af\u7247\u7684PHYAD0\u5f15\u811a\u662f\u5426\u60ac\u7a7a\u6765\u914d\u7f6e，\u60ac\u7a7a\u914d\u7f6e\u4e3a0，\u4e0d\u60ac\u7a7a\u4e3a1\u3002<\/p>\n

\"\"<\/p>\n

\u914d\u7f6eLWIP：\u5148\u5c06DHCP\u5173\u95ed，\u7528\u9759\u6001\u5730\u5740\u7684\u65b9\u5f0f\u914d\u7f6eIP\u5730\u5740\u3001\u5b50\u7f51\u63a9\u7801\u3001\u7f51\u5173\u3002ICMP\u8981\u8bbe\u7f6e\u4e3a\u4f7f\u80fd，\u914d\u7f6e\u624d\u53ef\u4ee5ping\u901a\u3002UDP\u548cTCP\u6a21\u5f0f\u9700\u8981\u54ea\u4e2a\u5c31\u53ef\u4ee5\u914d\u7f6e\u54ea\u4e2a\u4f7f\u80fd\u3002<\/p>\n

\"\"<\/p>\n

\u914d\u7f6ePHY\u82af\u7247\u590d\u4f4d\u5f15\u811a<\/p>\n

\"\"<\/p>\n

\u5728\u4ee3\u7801\u4e2d\u52a0\u5165\u8fd9\u4e00\u6bb5，\u5c31\u662f\u5c06\u8fde\u63a5PHY\u82af\u7247\u590d\u4f4d\u5f15\u811a\u7684\u90a3\u4e2aGPIO\u62c9\u4f4e\u62c9\u9ad8\u4e00\u4e0b\u3002<\/p>\n

\"\"<\/p>\n

HAL_GPIO_WritePin(RMII_NRST_GPIO_Port, RMII_NRST_Pin, GPIO_PIN_RESET);
\nHAL_Delay(55);
\nHAL_GPIO_WritePin(RMII_NRST_GPIO_Port, RMII_NRST_Pin, GPIO_PIN_SET);
\nHAL_Delay(55); <\/p>\n

\u8fd8\u9700\u8981\u5728\u4ee3\u7801\u4e2d\u52a0\u4e0aMX_LWIP_Process();\u548ctcp_server_init();<\/p>\n

\"\"<\/p>\n

tcp_server.c\u76f8\u5173\u51fd\u6570\u5982\u4e0b<\/p>\n

#include "stm32f1xx_hal.h"
\n#include "lwip.h"
\n#include "tcp.h"
\n#include "string.h"
\n#include "tcp_server.h"<\/p>\n

\/* \u5b9a\u4e49\u7aef\u53e3\u53f7 *\/
\n#define TCP_LOCAL_PORT 8000 \/* \u672c\u5730\u7aef\u53e3 *\/<\/p>\n

\/******************************************************************************
\n * \u63cf\u8ff0 : \u63a5\u6536\u56de\u8c03\u51fd\u6570
\n * \u53c2\u6570 : –
\n * \u8fd4\u56de : –
\n******************************************************************************\/
\nstatic err_t tcp_server_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err)
\n{
\nif (p == NULL) \/\/\u68c0\u6d4b\u5230\u5bf9\u65b9\u4e3b\u52a8\u5173\u95ed\u8fde\u63a5\u65f6，\u4e5f\u4f1a\u8c03\u7528recv\u51fd\u6570，\u6b64\u65f6p\u4e3a\u7a7a
\n{
\nprintf("ip %d:%d:%d:%d port:%d \u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5\\\\r\\\\n",
\n*((uint8_t *)&tpcb->remote_ip.addr),
\n*((uint8_t *)&tpcb->remote_ip.addr + 1),
\n*((uint8_t *)&tpcb->remote_ip.addr + 2),
\n*((uint8_t *)&tpcb->remote_ip.addr + 3),
\ntpcb->remote_port);<\/p>\n

\/\/tcp_write(tpcb, "tcp client closed", strlen("tcp client closed"), 0);<\/p>\n

tcp_close(tpcb);<\/p>\n

err = ERR_CLSD;
\n}
\nelse if (err != ERR_OK)
\n{
\npbuf_free(p);
\n}
\nelse
\n{
\n\/\/\u66f4\u65b0\u7a97\u53e3
\ntcp_recved(tpcb, p->tot_len); \/\/\u8bfb\u53d6\u6570\u636e\u7684\u63a7\u5236\u5757 \u5f97\u5230\u6240\u6709\u6570\u636e\u7684\u957f\u5ea6 <\/p>\n

void *p_buf=p->payload;
\nuint8_t *data = (uint8_t *)p_buf;
\n printf("len:%d \\\\n", p->tot_len); \/\/ \u4ee5\u5341\u516d\u8fdb\u5236\u5f62\u5f0f\u6253\u5370\u6bcf\u4e2a\u5b57\u8282
\n for (u16_t i = 0; i < p->tot_len; i++) {
\n printf("data[%d]=%d \\\\n", i , data[i]); \/\/ \u4ee5\u5341\u516d\u8fdb\u5236\u5f62\u5f0f\u6253\u5370\u6bcf\u4e2a\u5b57\u8282
\n } <\/p>\n

\/\/tcp_write(tpcb, "tcp send", strlen("tcp send"), 0);<\/p>\n

memset(p->payload, 0 , p->tot_len);
\npbuf_free(p);
\n}
\n return err;
\n}<\/p>\n

\/******************************************************************************
\n * \u63cf\u8ff0 : \u5ba2\u6237\u7aef\u63a5\u5165\u56de\u8c03\u51fd\u6570
\n * \u53c2\u6570 : –
\n * \u8fd4\u56de : –
\n******************************************************************************\/<\/p>\n

static err_t tcp_server_accept(void *arg, struct tcp_pcb *newpcb, err_t err)
\n{ <\/p>\n

printf("ip %d:%d:%d:%d port:%d \u5ba2\u6237\u7aef\u8fde\u63a5\\\\r\\\\n",
\n *((uint8_t *)&newpcb->remote_ip.addr),
\n *((uint8_t *)&newpcb->remote_ip.addr + 1),
\n *((uint8_t *)&newpcb->remote_ip.addr + 2),
\n *((uint8_t *)&newpcb->remote_ip.addr + 3),
\n newpcb->remote_port);<\/p>\n

\/\/tcp_write(newpcb, "tcp client connected", strlen("tcp client connected"), 0);<\/p>\n

\/* \u6ce8\u518c\u63a5\u6536\u56de\u8c03\u51fd\u6570 *\/
\n tcp_recv(newpcb, tcp_server_recv);
\n return ERR_OK;
\n}<\/p>\n

\/******************************************************************************
\n * \u63cf\u8ff0 : \u521b\u5efatcp\u670d\u52a1\u5668
\n * \u53c2\u6570 : \u65e0
\n * \u8fd4\u56de : \u65e0
\n******************************************************************************\/<\/p>\n

void tcp_server_init(void)
\n{
\n struct tcp_pcb *tpcb;<\/p>\n

\/* \u521b\u5efatcp\u63a7\u5236\u5757 *\/
\n tpcb = tcp_new();<\/p>\n

if (tpcb != NULL)
\n {
\n err_t err;<\/p>\n

\/* \u7ed1\u5b9a\u7aef\u53e3\u63a5\u6536，\u63a5\u6536\u5bf9\u8c61\u4e3a\u6240\u6709ip\u5730\u5740 *\/
\n err = tcp_bind(tpcb, IP_ADDR_ANY, TCP_LOCAL_PORT);<\/p>\n

if (err == ERR_OK)
\n {
\n \/* \u76d1\u542c *\/
\n tpcb = tcp_listen(tpcb);<\/p>\n

\/* \u6ce8\u518c\u63a5\u5165\u56de\u8c03\u51fd\u6570 *\/
\n tcp_accept(tpcb, tcp_server_accept);
\n printf("\u670d\u52a1\u5668\u521b\u5efa\u6210\u529f\\\\r\\\\n");<\/p>\n

}
\n else
\n {
\ntcp_close(tpcb);
\n }<\/p>\n

}
\n}<\/p>\n

tcp_server.h\u76f8\u5173\u51fd\u6570\u5982\u4e0b<\/p>\n

#ifndef _TCPECHO_H_
\n#define _TCPECHO_H_<\/p>\n

void tcp_server_init(void);<\/p>\n

#endif<\/p>\n

\u73b0\u5728\u53ef\u4ee5\u5c1d\u8bd5ping\u901a<\/p>\n

\"\"<\/p>\n

\u5982\u56fe\u5c31ping\u6210\u529f\u4e86<\/p>\n

\"\"<\/p>\n

\u521b\u5efa\u4e00\u4e2a\u5ba2\u6237\u7aef，\u53bb\u8fde\u63a5\u5230\u670d\u52a1\u5668\u4e0a，\u5f97\u5230\u4e86\u5982\u56fe\u6548\u679c\u3002<\/p>\n

\"\"<\/p>\n

\u63a5\u4e0b\u6765\u6dfb\u52a0freertos，\u6211\u8fd9\u91cc\u9009\u62e9\u7684\u65f6CMSIS_V1，V2\u6ca1\u8bd5\u8fc7，\u6ce8\u610f\u8fd9\u4e2a\u5806\u7a7a\u95f4\u5927\u5c0f\u5c3d\u91cf\u7ed9\u5927\u4e00\u70b9，\u4e0d\u7136\u4f1a\u51fa\u9519，\u8fd8\u6ca1\u627e\u5230\u539f\u56e0\"\"<\/p>\n

\u6dfb\u52a0\u4e00\u4e2a\u521b\u5efatcp\u670d\u52a1\u5668\u4efb\u52a1<\/p>\n

\"\"<\/p>\n

\u5c06\u539f\u5148\u4ee3\u7801\u5185\u7684\u8fd9\u4e24\u4e2a\u51fd\u6570\u5c4f\u853d<\/p>\n

\"\"<\/p>\n

\u518d\u5728\u4efb\u52a1\u51fd\u6570\u91cc\u9762\u6dfb\u52a0\u521b\u5efa\u670d\u52a1\u5668\u51fd\u6570<\/p>\n

\"\"<\/p>\n

\u65b0\u7684tcp_server.c\u76f8\u5173\u51fd\u6570\u5982\u4e0b<\/p>\n

#include "tcp_server.h"
\n#include "lwip\/sockets.h"
\n#include <ctype.h><\/p>\n

char ReadBuff[BUFF_SIZE];<\/p>\n

\/* TCP\u670d\u52a1\u5668\u7aef（server）\u4efb\u52a1 *\/
\nvoid vTCPServer_Task(void)
\n{
\n int sfd, cfd;
\n int read_len; \/\/ \u8bfb\u7684\u6570\u636e\u957f\u5ea6
\n struct sockaddr_in server_addr, client_addr; \/\/ \u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u7684\u7ed3\u6784\u4f53
\n socklen_t client_addr_len;<\/p>\n

err_t err;
\n \/\/ \u521b\u5efasocket
\n sfd = socket(AF_INET, SOCK_STREAM, 0); \/\/ IPV4 socker\u8fde\u63a5 \u9ed8\u8ba4\u534f\u8bae
\nif(sfd < 0)
\n{
\n printf("\u521b\u5efa\u5931\u8d25\\\\r\\\\n");
\n}
\nelse
\n{
\n printf("\u521b\u5efa\u6210\u529f\\\\r\\\\n");
\n}
\n server_addr.sin_family = AF_INET;
\n server_addr.sin_port = htons(SERVER_PORT);
\n server_addr.sin_addr.s_addr = htonl(INADDR_ANY); \/\/ \u4ece\u672c\u673a\u83b7\u53d6
\n \/\/ \u7ed1\u5b9asocket
\n err = bind(sfd, (struct sockaddr *)&server_addr, sizeof(server_addr)); \/\/ \u6587\u4ef6\u63cf\u8ff0\u7b26 IP\u5730\u5740\u52a0\u7aef\u53e3\u53f7 addr\u957f\u5ea6 \u8fd4\u56de\u503c
\nif(err < 0)
\n{
\n printf("\u7ed1\u5b9a\u5931\u8d25\\\\r\\\\n");
\n}
\nelse
\n{
\n printf("\u7ed1\u5b9a\u6210\u529f %d \\\\r\\\\n",err);
\n}
\n \/\/ \u76d1\u542csocket
\n err = listen(sfd, 5); \/\/ \u6587\u4ef6\u63cf\u8ff0\u7b26 \u63e1\u624b\u961f\u5217\u603b\u548c
\nif(err < 0)
\n{
\n printf("\u76d1\u542c\u5931\u8d25\\\\r\\\\n");
\n}
\nelse
\n{
\n printf("\u76d1\u542c\u6210\u529f %d \\\\r\\\\n",err);
\n}<\/p>\n

printf("\u7b49\u5f85\u5ba2\u6237\u7aef\u8fde\u63a5\\\\r\\\\n");<\/p>\n

while(1)
\n {
\n client_addr_len = sizeof(client_addr);
\n cfd = accept(sfd, (struct sockaddr *)&client_addr, &client_addr_len); \/\/ \u6587\u4ef6\u63cf\u8ff0\u7b26 IP\u5730\u5740\u52a0\u7aef\u53e3\u53f7 \u8fd4\u56de\u503c<\/p>\n

printf("IP:%s \u7aef\u53e3\u53f7%d \u5ba2\u6237\u7aef\u8fde\u63a5\u6210\u529f\\\\r\\\\n", inet_ntoa(client_addr.sin_addr), ntohs(client_addr.sin_port));<\/p>\n

while (1) \/\/ \u7b49\u5f85\u5ba2\u6237\u7aef\u53d1\u9001\u6570\u636e，\u7136\u540e\u8fdb\u884c\u5927\u5c0f\u5199\u8f6c\u6362，\u518d\u5199\u56de\u5ba2\u6237\u7aef
\n {
\n read_len = read(cfd, ReadBuff, BUFF_SIZE);
\n if(read_len <= 0)
\n {
\n break;
\n }
\n for (int i = 0; i < read_len; i++)
\n {
\n ReadBuff[i] = toupper(ReadBuff[i]); \/\/ \u5c0f\u5199\u8f6c\u6362\u4e3a\u5927\u5199
\n }
\n write(cfd, ReadBuff, read_len);
\n printf("IP:%s \u7aef\u53e3\u53f7%d \u5ba2\u6237\u7aef\u53d1\u9001\u6570\u636e %s\\\\r\\\\n", inet_ntoa(client_addr.sin_addr), ntohs(client_addr.sin_port),ReadBuff);
\n }<\/p>\n

printf("IP:%s \u7aef\u53e3\u53f7%d \u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5\\\\r\\\\n", inet_ntoa(client_addr.sin_addr), ntohs(client_addr.sin_port));<\/p>\n

closesocket(cfd);<\/p>\n

}
\n}<\/p>\n

\u65b0\u7684tcp_server.h\u76f8\u5173\u51fd\u6570\u5982\u4e0b<\/p>\n

#ifndef __SOCKET_TCP_SERVER_H
\n#define __SOCKET_TCP_SERVER_H<\/p>\n

#define SERVER_PORT 8000 \/\/ \u7aef\u53e3\u53f7
\n#define BUFF_SIZE 1024<\/p>\n

void vTCPServer_Task(void);<\/p>\n

#endif<\/p>\n

\u6700\u7ec8\u6548\u679c\u5982\u4e0b\u56fe<\/p>\n

\"\"<\/p>\n<\/p>\n

\u5f15\u811a\u914d\u7f6e\u56fe\u548c\u65f6\u949f\u914d\u7f6e\u56fe\u5982\u4e0b<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\u4e09\u3001\u4ee3\u7801\u5730\u5740（\u6682\u65e0）<\/h2><\/p>\n","protected":false},"excerpt":{"rendered":"

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