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芯片复制STM32F4+W5500以太网通讯+freemodbus源码

时间：2026-04-28 来源：芯片解密浏览：3次字号：大中小

芯片复制

STM32F4+W5500以太网通讯+freemodbus

单片机源程序如下:

芯片复制
**********************************************************************************/
#include <string.h>
#include <stdio.h>
#include "stm32f10x.h"
#include "W5500.h"
#include "device.h"
#include "systick.h"
#include "led.h"
#include "mb.h"
/* ----------------------- Holding register Defines ------------------------------------------*/
#define REG_HOLDING_START 1000
#define REG_HOLDING_NREGS 4
/* ----------------------- Static variables ---------------------------------*/
static unsigned short usRegHoldingStart = REG_HOLDING_START;
static unsigned short usRegHoldingBuf[REG_HOLDING_NREGS]={0xaa,0x55,0x5599,0x5588};
/* ----------------------- input register Defines ------------------------------------------*/
#define REG_INPUT_START 1000
#define REG_INPUT_NREGS 4
/* ----------------------- Static variables ---------------------------------*/
static unsigned short usRegInputStart = REG_INPUT_START;
static unsigned short usRegInputBuf[REG_INPUT_NREGS]={0,0,0x5599,0x5588};
/* ----------------------- coils register Defines ------------------------------------------*/
#define REG_COILS_START 1000
#define REG_COILS_SIZE 16
/* ----------------------- Static variables ---------------------------------*/
static unsigned char ucRegCoilsBuf[REG_COILS_SIZE / 8]={0xaa,0xfe}; //数量低于8个还需要验证一下，是否需要加1呢。
/* ----------------------- discrete register Defines ------------------------------------------*/
#define REG_DISC_START 1000
#define REG_DISC_SIZE 16
/* ----------------------- Static variables ---------------------------------*/
static unsigned char ucRegDiscBuf[REG_DISC_SIZE / 8] = { 0x98, 0x6e }; //数量8的整数倍。
void BSP_LED(void); //LED指示线圈操作
/* W5500 configuration */
void W5500_Configuration()
{
unsigned char array[6];
GPIO_SetBits(GPIO_W5500_RST_PORT, GPIO_W5500_RST_Pin);
Delay_ms(100); /*delay 100ms 使用systick 1ms时基的延时*/
while((Read_1_Byte(PHYCFGR)&LINK)==0); /* Waiting for Ethernet Link */
Write_1_Byte(MR, RST);
Delay_ms(20); /*delay 20ms */
/* Set Gateway IP as: 192.168.1.1 */
array[0]=192;
array[1]=168;
array[2]=1;
array[3]=1;
Write_Bytes(GAR, array, 4);
/* Set Subnet Mask as: 255.255.255.0 */
array[0]=255;
array[1]=255;
array[2]=255;
array[3]=0;
Write_Bytes(SUBR, array, 4);
/* Set MAC Address as: 0x48,0x53,0x00,0x57,0x55,0x00 */
array[0]=0x48;
array[1]=0x53;
array[2]=0x00;
array[3]=0x57;
array[4]=0x55;
array[5]=0x00;
Write_Bytes(SHAR, array, 6);
/* Set W5500 IP as: 192.168.1.128 */
array[0]=192;
array[1]=168;
array[2]=1;
array[3]=128;
Write_Bytes(SIPR, array, 4);
}
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