--- title: "W5500 to control LED with Blue Pill using STM32CubeIDE" url: "https://maker.wiznet.io/Alan/projects/w5500-to-control-led-with-blue-pill-using-stm32cubeide/" markdown_url: "https://maker.wiznet.io/Alan/projects/w5500-to-control-led-with-blue-pill-using-stm32cubeide/md" type: "UCC: User Created Content" author: "https://www.micropeta.com/video109" author_url: "https://www.micropeta.com/video109" editor: "WIZnet" editor_url: "https://maker.wiznet.io/" original_author: "https://www.micropeta.com/video109" original_url: "https://www.micropeta.com/video109" published: "2025-08-27" language: "en" likes: 1 views: 3936 comments: 0 source: "WIZnet Makers (https://maker.wiznet.io/)" --- # W5500 to control LED with Blue Pill using STM32CubeIDE > W5500 to control LED with Blue Pill using STM32CubeIDE Original author: https://www.micropeta.com/video109 (source: https://www.micropeta.com/video109) ## Article ## W5500 to control LED with Blue Pill using STM32CubeIDE #### Prerequisites This project assumes you have already installed STM32CubeIDE. You need to have previously done a basic blink sketch with blue-pill using STM32CubeIDE. I have made a complete video from installing STM32CubeIDE to LED blink program. You can watch it by clicking this link. #### Wiring Diagram ![Diagram](https://www.micropeta.com/Video109Dia.jpg) ![Image](https://www.micropeta.com/Video109Img.jpg) ##### STM32CubeIDE Settings Click RCC → High Speed Clock (HSE) to Crystal/Ceramic Resonator Click Clock Configuration tab → HCLK (MHz) to 72 Click Pinout and Configuration tab Click connectivity → Click SPI1 For Mode select Full Duplex Master Configuration → Parameter Settings Change prescalar (for Baud rate) to 32 Set PA4 to GPIO_Output Set PC13 to GPIO_Output #### Libraries ##### Put inside Core/Inc Folder **dhcp.h** - Take from Internet\DHCP folder **httpParser.h** - Take from Internet\httpServer folder **httpServer.h** - Take from Internet\httpServer folder **httpUtil.h** - Take from Internet\httpServerfolder **socket.h** Take from Ethernet folder **w5500.h** Take from Ethernet\W5500 folder **wizchip_conf.h** Take from Ethernet folder ##### Put inside Core/Src Folder **dhcp.c** Take from Internet\DHCP folder **httpParser.c** Take from Internet\httpServer folder **httpServer.c** Take from Internet\httpServer folder **httpUtil.c** Take from Internet\httpServer folder **socket.c** Take from Ethernet folder **w5500.c** Take from Ethernet\W5500 folder **wizchip_conf.c** Take from Ethernet folder ##### Additional code on top of STM32CubeIDE generated code(main.c) ``` /* USER CODE BEGIN Includes */ #include #include #include #include "socket.h" #include "dhcp.h" #include "httpServer.h" /* USER CODE END Includes */ /* USER CODE BEGIN 0 */ #define DHCP_SOCKET 0 #define DNS_SOCKET 1 #define HTTP_SOCKET 2 #define SOCK_TCPS 0 #define SOCK_UDPS 1 #define PORT_TCPS 5000 #define PORT_UDPS 3000 #define MAX_HTTPSOCK 6 #define index_page ""\ ""\ ""\ "W5500-STM32 Web Server"\ ""\ ""\ ""\ ""\ ""\ "

STM32 - W5500

"\ "

Control the light via Ethernet

"\ "ON"\ "OFF"\ ""\ "" #define ledon_page" "\ ""\ ""\ "W5500-STM32 Web Server"\ ""\ ""\ ""\ ""\ ""\ "

STM32 - W5500

"\ "

Light is currently on

"\ "OFF"\ ""\ "" #define ledoff_page""\ ""\ ""\ "W5500-STM32 Web Server"\ ""\ ""\ ""\ ""\ ""\ "

STM32 - W5500

"\ "

Light is currently off

"\ "ON"\ ""\ "" uint8_t socknumlist[] = {2, 3, 4, 5, 6, 7}; uint8_t RX_BUF[1024]; uint8_t TX_BUF[1024]; wiz_NetInfo net_info = { .mac = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }, .dhcp = NETINFO_DHCP }; void wizchipSelect(void) { HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET); } void wizchipUnselect(void) { HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_SET); } void wizchipReadBurst(uint8_t* buff, uint16_t len) { HAL_SPI_Receive(&hspi1, buff, len, HAL_MAX_DELAY); } void wizchipWriteBurst(uint8_t* buff, uint16_t len) { HAL_SPI_Transmit(&hspi1, buff, len, HAL_MAX_DELAY); } uint8_t wizchipReadByte(void) { uint8_t byte; wizchipReadBurst(&byte, sizeof(byte)); return byte; } void wizchipWriteByte(uint8_t byte) { wizchipWriteBurst(&byte, sizeof(byte)); } volatile bool ip_assigned = false; void Callback_IPAssigned(void) { ip_assigned = true; } void Callback_IPConflict(void) { ip_assigned = false; } uint8_t dhcp_buffer[1024]; uint8_t dns_buffer[1024]; void W5500Init() { // Register W5500 callbacks reg_wizchip_cs_cbfunc(wizchipSelect, wizchipUnselect); reg_wizchip_spi_cbfunc(wizchipReadByte, wizchipWriteByte); reg_wizchip_spiburst_cbfunc(wizchipReadBurst, wizchipWriteBurst); uint8_t rx_tx_buff_sizes[] = {2, 2, 2, 2, 2, 2, 2, 2}; wizchip_init(rx_tx_buff_sizes, rx_tx_buff_sizes); // set MAC address before using DHCP setSHAR(net_info.mac); DHCP_init(DHCP_SOCKET, dhcp_buffer); reg_dhcp_cbfunc( Callback_IPAssigned, Callback_IPAssigned, Callback_IPConflict ); uint32_t ctr = 10000; while((!ip_assigned) && (ctr > 0)) { DHCP_run(); ctr--; } if(!ip_assigned) { return; } getIPfromDHCP(net_info.ip); getGWfromDHCP(net_info.gw); getSNfromDHCP(net_info.sn); ``` ``` // char charData[200]; // Data holder // sprintf(charData,"IP: %d.%d.%d.%d\r\nGW: %d.%d.%d.%d\r\nNet: %d.%d.%d.%d\r\n", // net_info.ip[0], net_info.ip[1], net_info.ip[2], net_info.ip[3], // net_info.gw[0], net_info.gw[1], net_info.gw[2], net_info.gw[3], // net_info.sn[0], net_info.sn[1], net_info.sn[2], net_info.sn[3] // ); // HAL_UART_Transmit(&huart1,(uint8_t *)charData,strlen(charData),1000); ``` ``` wizchip_setnetinfo(&net_info); } /* USER CODE END 0 */ /* USER CODE BEGIN 2 */ W5500Init(); httpServer_init(TX_BUF, RX_BUF, MAX_HTTPSOCK, socknumlist); reg_httpServer_cbfunc(NVIC_SystemReset, NULL); /* Web content registration */ reg_httpServer_webContent((uint8_t *)"index.html", (uint8_t *)index_page); reg_httpServer_webContent((uint8_t *)"ledon.html", (uint8_t *)ledon_page); reg_httpServer_webContent((uint8_t *)"ledoff.html", (uint8_t *)ledoff_page); HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_RESET); /* USER CODE END 2 */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { for(int i = 0; i < MAX_HTTPSOCK; i++) httpServer_run(i); // HTTP Server handler /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */ ``` ##### Additional code on top of the library code(httpServer.h) line no 14 ``` #include "stm32f1xx_hal.h" ``` --- Source: https://maker.wiznet.io/Alan/projects/w5500-to-control-led-with-blue-pill-using-stm32cubeide/