---
title: "STM32 +w5500 (slave) issue"
url: "https://maker.wiznet.io/forum/15180"
markdown_url: "https://maker.wiznet.io/forum/15180/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "christopher clown"
created: "2024-03-23T12:39:28+09:00"
last_activity: "2024-03-23T12:39:29+09:00"
language: "en"
views: 138
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# STM32 +w5500 (slave) issue

## Question

Asked by christopher clown on 2024-03-23 in Ethernet Chips.

Hi all, I have a connection problem about stm32 + w5500 as slave. When I am debugging, socket is not opening. Here my codes: /* USER CODE BEGIN Header / /* @file : main.c @brief : Main program body @attention Copyright (c) 2024 STMicroelectronics. All rights reserved. This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS. / / USER CODE END Header / / Includes ------------------------------------------------------------------*/ #include “main.h” /* Private includes ----------------------------------------------------------/ / USER CODE BEGIN Includes / #include “wizchip_conf.h” #include “socket.h” #include “loopback.h” #include <stdlib.h> #include <string.h> #include <stdio.h> / USER CODE END Includes */ /* Private typedef -----------------------------------------------------------/ / USER CODE BEGIN PTD */ /* USER CODE END PTD */ /* Private define ------------------------------------------------------------/ / USER CODE BEGIN PD */ /* USER CODE END PD */ /* Private macro -------------------------------------------------------------/ / USER CODE BEGIN PM */ /* USER CODE END PM */ /* Private variables ---------------------------------------------------------*/ ADC_HandleTypeDef hadc1; SPI_HandleTypeDef hspi1; /* USER CODE BEGIN PV / const uint8_t MASTER_IP[] = {192,168,0,101}; / USER CODE END PV */ /* Private function prototypes -----------------------------------------------/ void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_SPI1_Init(void); static void MX_ADC1_Init(void); / USER CODE BEGIN PFP */ uint8_t function3(uint8_t *request,uint8_t *response); uint8_t function4(uint8_t *request,uint8_t response); / USER CODE END PFP */ /* Private user code ---------------------------------------------------------/ / USER CODE BEGIN 0 */ void delay(void){ for(uint32_t i=0;i<250000;i++); } void cs_sel() { HAL_GPIO_WritePin(GPIOA, GPIO_PIN_10, GPIO_PIN_RESET); //CS LOW } void cs_desel() { HAL_GPIO_WritePin(GPIOB, GPIO_PIN_10, GPIO_PIN_SET); //CS HIGH } uint8_t spi_rb(void) { uint8_t rbuf; HAL_SPI_Receive(&hspi1, &rbuf, 1, 0xFFFFFFFF); return rbuf; } void spi_wb(uint8_t b) { HAL_SPI_Transmit(&hspi1, &b, 1, 0xFFFFFFFF); } /* USER CODE END 0 */ /** @brief The application entry point. @retval int / int main(void) { / USER CODE BEGIN 1 / uint8_t bufSize[] = {2,2,2,2,2,2,2,2}; / USER CODE END 1 */ /* MCU Configuration--------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* USER CODE BEGIN Init */ /* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals / MX_GPIO_Init(); MX_SPI1_Init(); MX_ADC1_Init(); / USER CODE BEGIN 2 */ wizchip_init(bufSize, bufSize); wiz_NetInfo netInfo = { .mac = {176, 45, 176, 62, 49, 219}, // Mac address .ip = {192, 168, 0, 150}, // IP address .sn = {255, 255, 255, 0}, .gw = {0,0,0,0}}; wizchip_setnetinfo(&netInfo); //wizchip_getnetinfo(&netInfo); reg_wizchip_cs_cbfunc(cs_sel, cs_desel); reg_wizchip_spi_cbfunc(spi_rb, spi_wb); uint8_t s=0; uint8_t listen_socket; uint8_t cevap; uint8_t connect_status; uint8_t *request_message; //Message from master uint8_t *response_message; //Response message from server to master cevap = socket(s, Sn_MR_TCP, (uint16_t)502, SF_TCP_NODELAY); if(cevap == SOCK_OK){ /* Put socket in LISTEN mode.*/ listen_socket = listen(s); if(listen_socket == SOCK_OK){ //We connect to client(master) connect_status = connect(s, (uint8_t *)MASTER_IP, 502); for(uint8_t i=0;i<10;i++){ HAL_GPIO_TogglePin(kirmizi_led_GPIO_Port, kirmizi_led_Pin); delay(); HAL_GPIO_TogglePin(yesil_led_GPIO_Port, yesil_led_Pin); delay(); HAL_GPIO_TogglePin(turuncu_led_GPIO_Port, turuncu_led_Pin); delay(); HAL_GPIO_TogglePin(mavi_led_GPIO_Port, mavi_led_Pin); delay(); } if(connect_status == SOCK_OK){ recvfrom(s,(uint8_t *)&request_message, 12, (uint8_t *)MASTER_IP, (uint16_t *)502); if(request_message[6] == 1){ switch(request_message[7]){ case 0x3: function3((uint8_t *)&request_message,(uint8_t *)&response_message); break; case 0x4: function4((uint8_t *)&request_message,(uint8_t *)&response_message); break; } } }else{ while(1){ HAL_GPIO_TogglePin(turuncu_led_GPIO_Port, turuncu_led_Pin); delay(); HAL_GPIO_TogglePin(kirmizi_led_GPIO_Port, kirmizi_led_Pin); delay(); } } }else{ while(1){ HAL_GPIO_TogglePin(turuncu_led_GPIO_Port, turuncu_led_Pin); delay(); HAL_GPIO_TogglePin(mavi_led_GPIO_Port, mavi_led_Pin); delay(); } } }else{ while(1){ HAL_GPIO_TogglePin(kirmizi_led_GPIO_Port, kirmizi_led_Pin); delay(); HAL_GPIO_TogglePin(yesil_led_GPIO_Port, yesil_led_Pin); delay(); } } /* USER CODE END 2 */ /* Infinite loop / / USER CODE BEGIN WHILE / while (1){ / USER CODE END WHILE / / Open socket 0 as TCP_SOCKET with port 502 */ /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */ } /** @brief System Clock Configuration @retval None */ void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; /** Configure the main internal regulator output voltage */ __HAL_RCC_PWR_CLK_ENABLE(); __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); /** Initializes the RCC Oscillators according to the specified parameters in the RCC_OscInitTypeDef structure. */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = 4; RCC_OscInitStruct.PLL.PLLN = 82; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_OscInitStruct.PLL.PLLQ = 7; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } /** Initializes the CPU, AHB and APB buses clocks */ RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) { Error_Handler(); } } /** @brief ADC1 Initialization Function @param None @retval None */ static void MX_ADC1_Init(void) { /* USER CODE BEGIN ADC1_Init 0 */ /* USER CODE END ADC1_Init 0 */ ADC_ChannelConfTypeDef sConfig = {0}; /* USER CODE BEGIN ADC1_Init 1 */ /* USER CODE END ADC1_Init 1 */ /** Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion) */ hadc1.Instance = ADC1; hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2; hadc1.Init.Resolution = ADC_RESOLUTION_12B; hadc1.Init.ScanConvMode = DISABLE; hadc1.Init.ContinuousConvMode = DISABLE; hadc1.Init.DiscontinuousConvMode = DISABLE; hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE; hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START; hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT; hadc1.Init.NbrOfConversion = 1; hadc1.Init.DMAContinuousRequests = DISABLE; hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV; if (HAL_ADC_Init(&hadc1) != HAL_OK) { Error_Handler(); } /** Configure for the selected ADC regular channel its corresponding rank in the sequencer and its sample time. / sConfig.Channel = ADC_CHANNEL_1; sConfig.Rank = 1; sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES; if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) { Error_Handler(); } / USER CODE BEGIN ADC1_Init 2 */ /* USER CODE END ADC1_Init 2 */ } /** @brief SPI1 Initialization Function @param None @retval None */ static void MX_SPI1_Init(void) { /* USER CODE BEGIN SPI1_Init 0 */ /* USER CODE END SPI1_Init 0 */ /* USER CODE BEGIN SPI1_Init 1 */ /* USER CODE END SPI1_Init 1 / / SPI1 parameter configuration*/ hspi1.Instance = SPI1; hspi1.Init.Mode = SPI_MODE_MASTER; hspi1.Init.Direction = SPI_DIRECTION_2LINES; hspi1.Init.DataSize = SPI_DATASIZE_8BIT; hspi1.Init.CLKPolarity = SPI_POLARITY_LOW; hspi1.Init.CLKPhase = SPI_PHASE_1EDGE; hspi1.Init.NSS = SPI_NSS_SOFT; hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_64; hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB; hspi1.Init.TIMode = SPI_TIMODE_DISABLE; hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE; hspi1.Init.CRCPolynomial = 10; if (HAL_SPI_Init(&hspi1) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN SPI1_Init 2 */ /* USER CODE END SPI1_Init 2 */ } /** @brief GPIO Initialization Function @param None @retval None */ static void MX_GPIO_Init(void) { GPIO_InitTypeDef GPIO_InitStruct = {0}; /* GPIO Ports Clock Enable */ __HAL_RCC_GPIOH_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOD_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE(); /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOD, mavi_led_Pin|yesil_led_Pin|turuncu_led_Pin|kirmizi_led_Pin |CS_Pin_Pin, GPIO_PIN_RESET); /*Configure GPIO pins : mavi_led_Pin yesil_led_Pin turuncu_led_Pin kirmizi_led_Pin CS_Pin_Pin */ GPIO_InitStruct.Pin = mavi_led_Pin|yesil_led_Pin|turuncu_led_Pin|kirmizi_led_Pin |CS_Pin_Pin; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOD, &GPIO_InitStruct); } /* USER CODE BEGIN 4 */ uint8_t function3(uint8_t *request,uint8_t *response){ uint8_t s=0; uint16_t temp_quan,temp_start_address; temp_quan = 0x0; temp_start_address = 0x0; temp_quan |= request[10]; temp_quan <<=8; temp_quan |= request[11]; if( (temp_quan >= 0x1) || (temp_quan <= 0x7D)){ temp_start_address |= request[8]; temp_start_address <<=8; temp_start_address |= request[9]; if((temp_start_address <= 40001) && ((temp_start_address + temp_quan) <= 50000)){ //????????? //Request processing for(uint8_t i=0;i<8;i++){ response[i] = request[i]; } //response[0] = request[0]; //Transaction ID high byte //response[1] = request[1]; //Transaction ID low byte //response[2] = request[2]; //Protocol ID high byte //response[3] = request[3]; //Protocol ID low byte //response[4] = request[4]; //Message length high byte //response[5] = request[5]; //Message length low byte //response[6] = request[6]; //Device address match //response[7] = request[7]; //Function code response[8] = 2*temp_quan; //Assume that 1 analog output (AO0) uint16_t adc_value; adc_value = (uint16_t)HAL_ADC_GetValue(&hadc1); //Get ADC value from ADC1_IN1. This is our AO0 value response[9] = (adc_value >> 8) & 0xFF; //High byte of AO0 //set parameter is ok response[10] = adc_value && 0xFF; //Low byte of AO0 if(response[8] >= 1){ return sendto(s, response, 11, (uint8_t *)MASTER_IP, 502); }else{ while(1){ HAL_GPIO_TogglePin(mavi_led_GPIO_Port, mavi_led_Pin); //Error exception 4 delay(); } return 4; } }else{ while(1){ HAL_GPIO_TogglePin(turuncu_led_GPIO_Port, turuncu_led_Pin); //Error exception 3 delay(); } return 3; } }else{ while(1){ HAL_GPIO_TogglePin(yesil_led_GPIO_Port, yesil_led_Pin); //Error exception 2 delay(); } return 2; } } uint8_t function4(uint8_t *request, uint8_t *response){ uint8_t s=0; uint8_t temp_quan,temp_start_address; temp_quan = 0x0; temp_start_address = 0x0; temp_quan |= request[10]; temp_quan <<=8; temp_quan |= request[11]; if( (temp_quan >= 0x1) || (temp_quan <= 0x7D)){ temp_start_address |= request[8]; temp_start_address <<=8; temp_start_address |= request[9]; if((temp_start_address <= 40001) && ((temp_start_address + temp_quan) <= 50000)){ //Request processing for(uint8_t i=0;i<8;i++){ response[i] = request[i]; } //response[0] = request[0]; //Transaction ID high byte //response[1] = request[1]; //Transaction ID low byte //response[2] = request[2]; //Protocol ID high byte //response[3] = request[3]; //Protocol ID low byte //response[4] = request[4]; //Message length high byte //response[5] = request[5]; //Message length low byte //response[6] = request[6]; //Device address match //response[7] = request[7]; //Function code response[8] = 2*temp_quan; //Assume that 1 analog output (AO0) uint16_t adc_value; adc_value = (uint16_t)HAL_ADC_GetValue(&hadc1); //Get ADC value from ADC1_IN1. This is our AO0 value response[9] = (adc_value >> 8) & 0xFF; //High byte of AO0 response[10] = adc_value && 0xFF; //Low byte of AO0 if(response[8] >= 1){ return sendto(s, response, 11, (uint8_t *)MASTER_IP, 502); }else{ while(1){ HAL_GPIO_TogglePin(mavi_led_GPIO_Port, mavi_led_Pin); //Error exception 4 delay(); } return 4; } }else{ while(1){ HAL_GPIO_TogglePin(turuncu_led_GPIO_Port, turuncu_led_Pin); //Error exception 3 delay(); } return 3; } }else{ while(1){ HAL_GPIO_TogglePin(yesil_led_GPIO_Port, yesil_led_Pin); //Error exception 2 delay(); } return 2; } } /* USER CODE END 4 */ /** @brief This function is executed in case of error occurrence. @retval None / void Error_Handler(void) { / USER CODE BEGIN Error_Handler_Debug / / User can add his own implementation to report the HAL error return state / __disable_irq(); while (1) { } / USER CODE END Error_Handler_Debug */ } #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 CODE BEGIN 6 / / 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) / / USER CODE END 6 / } #endif / USE_FULL_ASSERT */ We can not communicate with stm32+w5500 (as server mode). Host device (client)'s IP address is “192.168.0.101”. What do I wrong? Any help very help to me.

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Source: https://maker.wiznet.io/forum/15180