Arduino for STM32

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/*
 * Currently support 
 * 1) STM32 boards with built-in Ethernet (to use USE_BUILTIN_ETHERNET = true) such as :
 *    - Nucleo-144 (F429ZI, F767ZI)
 *    - Discovery (STM32F746G-DISCOVERY)
 * 2) STM32 boards (with 64+K Flash) running EMC28J60 shields (to use USE_BUILTIN_ETHERNET = false)
 * 
 */

#define USE_BUILTIN_ETHERNET   false    //true

#include <EthernetWebServer_STM32.h>
  
// Enter a MAC address and IP address for your controller below.

byte mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
};

// Select the IP address according to your local network
IPAddress ip(192, 168, 2, 200);

EthernetWebServer server(80);

const int led = 13;

void handleRoot() 
{
  server.send(200, "text/plain", "Hello from EthernetWebServer");
}

void handleNotFound()
{
  String message = "File Not Found\n\n";
  message += "URI: ";
  message += server.uri();
  message += "\nMethod: ";
  message += (server.method() == HTTP_GET)?"GET":"POST";
  message += "\nArguments: ";
  message += server.args();
  message += "\n";
  for (uint8_t i=0; i<server.args(); i++)
  {
    message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
  }
  server.send(404, "text/plain", message);
  digitalWrite(led, 0);
}

void setup(void)
{
  // Open serial communications and wait for port to open:
  Serial.begin(115200);
  delay(1000);
  Serial.println("\nStarting HelloServer on Nucleo-144");

  // start the ethernet connection and the server:
  Ethernet.begin(mac, ip);

  server.on("/", handleRoot);

  server.on("/inline", [](){
    server.send(200, "text/plain", "This works as well");
  });

  server.onNotFound(handleNotFound);

  server.begin();

  Serial.print(F("HTTP EthernetWebServer is @ IP : "));
  Serial.println(Ethernet.localIP());
}

void loop(void)
{
  server.handleClient();
}