STM32+w5500+TcpClient学习笔记

注意: SPI的CS RST脚这些都是通过cubeMX自定义的可以自行修改。用的是SPI1
项目地址

//MyTcpClient.h
#ifndef MYTCPCLIENT_H
#define MYTCPCLIENT_H
#include "main.h"
#include "w5500.h"
#include "socket.h"
#include "wizchip_conf.h"
#include "spi.h"
#include <string.h>  // memcmp
#define SOCK_TCPS  0
extern  uint8_t buff[128];   //定义缓冲区   
extern uint8_t TCP_send_buff[128];   //定义UDP发送缓冲区                                            
extern uint8_t remote_ip[4]; //远程IP地址
extern uint16_t remote_port; //远程端口号void TcpClientInit(void);
void do_tcp_client(void);
void Analysis(uint8_t *buf);
#endif // MYTCPCLIENT_H

//MyTcpClient.c
#include "MyTcpClient.h"
#include "main.h"
#include "w5500.h"
#include "socket.h"
#include "wizchip_conf.h"
#include "spi.h"
#include <string.h>  // memcmpuint8_t buff[128];  
uint8_t TCP_send_buff[128]; 
//需配置                                                    
uint8_t remote_ip[4] = {192, 168, 6, 151}; //远程IP地址
uint16_t remote_port = 8080; //远程端口号//片选
void W5500_Select(void) {HAL_GPIO_WritePin(W5500_CS_GPIO_Port, W5500_CS_Pin, GPIO_PIN_RESET);
}
void W5500_Unselect(void) {HAL_GPIO_WritePin(W5500_CS_GPIO_Port, W5500_CS_Pin, GPIO_PIN_SET);
}
void W5500_Restart(void) {HAL_GPIO_WritePin(W5500_RST_GPIO_Port, W5500_RST_Pin, GPIO_PIN_RESET);HAL_Delay(1);  // delay 1msHAL_GPIO_WritePin(W5500_RST_GPIO_Port, W5500_RST_Pin, GPIO_PIN_SET);HAL_Delay(1600);  // delay 1600ms
}void W5500_ReadBuff(uint8_t* buff, uint16_t len) {HAL_SPI_Receive(&hspi1, buff, len, HAL_MAX_DELAY);
}void W5500_WriteBuff(uint8_t* buff, uint16_t len) {HAL_SPI_Transmit(&hspi1, buff, len, HAL_MAX_DELAY);
}uint8_t W5500_ReadByte(void) {uint8_t byte;W5500_ReadBuff(&byte, sizeof(byte));return byte;
}void W5500_WriteByte(uint8_t byte) {W5500_WriteBuff(&byte, sizeof(byte));
}//配置W5500网络信息(需配置)
wiz_NetInfo gSetNetInfo = {.mac  = {0x00, 0x08, 0xdc, 0x11, 0x11, 0x11},.ip   = {192, 168, 6, 15},.sn   = {255, 255, 255, 0},.gw   = {192, 168, 6, 1},.dns  = {8,8,8,8},.dhcp = NETINFO_STATIC};wiz_NetInfo gGetNetInfo;enum Status
{Failed = 0,Success = 1
};/*** @brief valid the result of set net info* @return 1: Success*         0: Failed
*/
uint8_t validSetNetInfoResult(wiz_NetInfo* _set, wiz_NetInfo* _get)
{return (!memcmp(_set, _get, sizeof(wiz_NetInfo)));  // if same, memcmp return 0
}//进入临界区
void SPI_CrisEnter(void)
{__set_PRIMASK(1);
}
//退出临界区
void SPI_CrisExit(void)
{__set_PRIMASK(0);
}void SPI_CS_Select(void)
{HAL_GPIO_WritePin(W5500_CS_GPIO_Port, W5500_CS_Pin, GPIO_PIN_RESET);
}
void SPI_CS_Deselect(void)
{HAL_GPIO_WritePin(W5500_CS_GPIO_Port, W5500_CS_Pin, GPIO_PIN_SET);
}void TcpClientInit(void)
{reg_wizchip_cris_cbfunc(SPI_CrisEnter, SPI_CrisExit);	//注册临界区函数reg_wizchip_cs_cbfunc(W5500_Select, W5500_Unselect);reg_wizchip_spi_cbfunc(W5500_ReadByte, W5500_WriteByte);W5500_Restart();  // hardware restart through RESET pinctlnetwork(CN_SET_NETINFO, (void*)&gSetNetInfo);  // set net info// maybe need delayctlnetwork(CN_GET_NETINFO, (void*)&gGetNetInfo);  // get net info// W5500 has 8 channel, 32k buffer, 2 means 2KBytesuint8_t buffer_size_8channel_tx_rx[16] = {2, 2, 2, 2, 2, 2, 2, 2,  // 8 channel tx2, 2, 2, 2, 2, 2, 2, 2}; // 8 channel rxif(ctlwizchip(CW_INIT_WIZCHIP,(void*)buffer_size_8channel_tx_rx)){// failed}uint8_t sta = getSn_SR(SOCK_TCPS);if(sta == SOCK_CLOSED){socket(SOCK_TCPS, Sn_MR_TCP, 5001, 0x00);}HAL_Delay(100);}void do_tcp_client(void)
{uint16_t len=0;switch(getSn_SR(SOCK_TCPS))														// 获取socket0的状态{case SOCK_INIT:															// Socket处于初始化完成(打开)状态	connect(SOCK_TCPS,remote_ip,remote_port);break;case SOCK_ESTABLISHED:											// Socket处于连接建立状态if(getSn_IR(SOCK_TCPS) & Sn_IR_CON)   					{setSn_IR(SOCK_TCPS, Sn_IR_CON);								// Sn_IR的CON位置1，通知W5500连接已建立}// 数据回环测试程序：数据从上位机服务器发给W5500，W5500接收到数据后再回给服务器len=getSn_RX_RSR(SOCK_TCPS);										// len=Socket0接收缓存中已接收和保存的数据大小					if(len){recv(SOCK_TCPS,buff,len);		send(SOCK_TCPS,buff,len);							}											break;case SOCK_CLOSE_WAIT:												  // Socket处于等待关闭状态disconnect(SOCK_TCPS);	break;case SOCK_CLOSED:														// Socket处于关闭状态socket(SOCK_TCPS,Sn_MR_TCP,5001,0x00);		// 打开Socket0，打开一个本地端口break;}
}//分析数据
void Analysis(uint8_t *buf)
{}

主函数(我用的是freeRTOS以线程的方式)

//freertos.c
/* USER CODE BEGIN Includes */
#include "MyTcpClient.h" //添加头文件
/* USER CODE END Includes */

//freertos.c
void W5500_Task_TCP(void const * argument)
{/* USER CODE BEGIN W5500_Task_TCP */TcpClientInit();/* Infinite loop */for(;;){do_tcp_client();//osDelay(1);}/* USER CODE END W5500_Task_TCP */
}

大伙注意的是参考文章中没提到的

//MyTcpClient.c
//进入临界区
void SPI_CrisEnter(void)
{__set_PRIMASK(1);
}
//退出临界区
void SPI_CrisExit(void)
{__set_PRIMASK(0);
}

还有就是