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Micro-controllers, wireless transmission and database
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. https://www.youtube.com/watch?v=kXg467nVd_A
Wiring Diagram
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
https://github.com/Wiznet/ioLibrary_Driver
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 <string.h> #include <stdbool.h> #include <stdio.h> #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 "<!DOCTYPE html>"\ "<html>"\ "<head>"\ "<title>W5500-STM32 Web Server</title>"\ "<meta http-equiv='Content-Type' content='text/html; charset=utf-8'>"\ "<link href=\"data:image/x-icon;base64,A\" rel=\"icon\" type=\"image/x-icon\">"\ "<style>"\ "html {display: inline-block; margin: 0px auto; text-align: center;}"\ "body{margin-top: 50px;}"\ ".button {display: block;"\ "width: 70px;"\ "background-color: #008000;"\ "border: none;"\ "color: white;"\ "padding: 14px 28px;"\ "text-decoration: none;"\ "font-size: 24px;"\ "margin: 0px auto 36px;"\ "border-radius: 5px;}"\ ".button-on {background-color: #008000;}"\ ".button-on:active{background-color: #008000;}"\ ".button-off {background-color: #808080;}"\ ".button-off:active {background-color: #808080;}"\ "p {font-size: 20px;color: #808080;margin-bottom: 20px;}"\ "</style>"\ "</head>"\ "<body>"\ "<h1>STM32 - W5500</h1>"\ "<p>Control the light via Ethernet</p>"\ "<a class=\"button button-on\" href=\"/ledon.html\">ON</a>"\ "<a class=\"button button-off\" href=\"/ledoff.html\">OFF</a>"\ "</body>"\ "</html>" #define ledon_page" <!DOCTYPE html>"\ "<html>"\ "<head>"\ "<title>W5500-STM32 Web Server</title>"\ "<meta http-equiv='Content-Type' content='text/html; charset=utf-8'>"\ "<link href=\"data:image/x-icon;base64,A\" rel=\"icon\" type=\"image/x-icon\">"\ "<style>"\ "html {display: inline-block; margin: 0px auto; text-align: center;}"\ "body{margin-top: 50px;}"\ ".button {display: block;"\ "width: 70px;"\ "background-color: #008000;"\ "border: none;"\ "color: white;"\ "padding: 14px 28px;"\ "text-decoration: none;"\ "font-size: 24px;"\ "margin: 0px auto 36px;"\ "border-radius: 5px;}"\ ".button-on {background-color: #008000;}"\ ".button-on:active{background-color: #008000;}"\ ".button-off {background-color: #808080;}"\ ".button-off:active {background-color: #808080;}"\ "p {font-size: 20px;color: #808080;margin-bottom: 20px;}"\ "</style>"\ "</head>"\ "<body>"\ "<h1>STM32 - W5500</h1>"\ "<p>Light is currently on</p>"\ "<a class=\"button button-off\" href=\"/ledoff.html\">OFF</a>"\ "</body>"\ "</html>" #define ledoff_page"<!DOCTYPE html>"\ "<html>"\ "<head>"\ "<title>W5500-STM32 Web Server</title>"\ "<meta http-equiv='Content-Type' content='text/html; charset=utf-8'>"\ "<link href=\"data:image/x-icon;base64,A\" rel=\"icon\" type=\"image/x-icon\">"\ "<style>"\ "html {display: inline-block; margin: 0px auto; text-align: center;}"\ "body{margin-top: 50px;}"\ ".button {display: block;"\ "width: 70px;"\ "background-color: #008000;"\ "border: none;"\ "color: white;"\ "padding: 14px 28px;"\ "text-decoration: none;"\ "font-size: 24px;"\ "margin: 0px auto 36px;"\ "border-radius: 5px;}"\ ".button-on {background-color: #008000;}"\ ".button-on:active{background-color: #008000;}"\ ".button-off {background-color: #808080;}"\ ".button-off:active {background-color: #808080;}"\ "p {font-size: 20px;color: #808080;margin-bottom: 20px;}"\ "</style>"\ "</head>"\ "<body>"\ "<h1>STM32 - W5500</h1>"\ "<p>Light is currently off</p>"\ "<a class=\"button button-on\" href=\"/ledon.html\">ON</a>"\ "</body>"\ "</html>" 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"
Additional code on top of the library code(httpServer.c)
line no 521if (!strcmp((char *)uri_name, "ledon.html")) HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_RESET); if (!strcmp((char *)uri_name, "ledoff.html")) HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_SET);
Remove from the library code(wizchip_conf.h)
line no 157#include "W5500/w5500.h"