Diff: main.cpp

Revision:

2:519b6ae198ae

Parent:

1:9c602cc98b9f

Child:

3:f3bfd257e138

--- a/main.cpp	Sat Dec 20 12:02:19 2014 +0000
+++ b/main.cpp	Fri Nov 27 20:35:35 2015 +0000
@@ -1,51 +1,96 @@
-/* 
+/*
  * In this example the HTTP request (text) received from a browser is echoed (sent back) to the browser.
  * Ethernet connection is via an ENC28J60 board driven by UIPEthernet
  */
-
 #include "mbed.h"
 #include <UIPEthernet.h>
 #include <UIPServer.h>
 #include <UIPClient.h>
 
+Serial  pc(USBTX, USBRX);
+
+#define DHCP    1   // comment out this line if you are not using DHCP
+
 // UIPEthernet is the name of a global instance of UIPEthernetClass.
+
 // Do not change the name! It is used within the UIPEthernet library.
 // Adapt the SPI pin names to your mbed platform/board if not present yet.
 #if defined(TARGET_LPC1768)
-UIPEthernetClass UIPEthernet(p11, p12, p13, p8);        // mosi, miso, sck, cs
+UIPEthernetClass    UIPEthernet(p11, p12, p13, p8);         // mosi, miso, sck, cs
 #elif defined(TARGET_LPC1114)
-UIPEthernetClass UIPEthernet(dp2, dp1, dp6, dp25);      // mosi, miso, sck, cs
+UIPEthernetClass    UIPEthernet(dp2, dp1, dp6, dp25);       // mosi, miso, sck, cs
 #elif defined(TARGET_LPC11U68)
-UIPEthernetClass UIPEthernet(P0_9, P0_8, P1_29, P0_2);  // mosi, miso, sck, cs
-#elif defined (TARGET_NUCLEO_F103RB)
-UIPEthernetClass UIPEthernet(PB_5, PB_4, PB_3, PB_6);   // mosi, miso, sck, cs
+UIPEthernetClass    UIPEthernet(P0_9, P0_8, P1_29, P0_2);   // mosi, miso, sck, cs
+#elif defined(TARGET_NUCLEO_F103RB)
+UIPEthernetClass    UIPEthernet(D11, D12, D13, D10);        // mosi, miso, sck, cs
+#elif defined(TARGET_NUCLEO_F103RB)
+UIPEthernetClass    UIPEthernet(D11, D12, D13, D10);        // mosi, miso, sck, cs
+#elif defined(TARGET_NUCLEO_F401RE)
+UIPEthernetClass    UIPEthernet(D11, D12, D13, D10);        // mosi, miso, sck, cs
+#elif defined(TARGET_NUCLEO_F411RE)
+UIPEthernetClass    UIPEthernet(D11, D12, D13, D10);        // mosi, miso, sck, cs
+#endif
+// MAC number must be unique within the connected network. Modify as appropriate.
+
+const uint8_t       MY_MAC[6] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
+
+#if !defined(DHCP)
+// IP address must be unique and compatible with your network. Change as appropriate.
+const IPAddress MY_IP(192, 168, 1, 181);
 #endif
 
-// MAC number must be unique within the connected network. Modify as appropriate.
-const uint8_t    MY_MAC[6] = {0x00,0x01,0x02,0x03,0x04,0x05};
-// IP address must be unique and compatible with your network. Change as appropriate.
-const IPAddress  MY_IP(192,168,1,181);
-const uint16_t   MY_PORT = 80;      // for HTTP connection
-EthernetServer   myServer = EthernetServer(MY_PORT);
-Serial           serial(USBTX, USBRX);
+const uint16_t  MY_PORT = 80;   // for HTTP connection
+EthernetServer  myServer = EthernetServer(MY_PORT);
+Serial          serial(USBTX, USBRX);
+
+/**
+ * @brief
+ * @note
+ * @param
+ * @retval
+ */
+
+int main(void) {
+    pc.printf("Searching for DHCP server.\r\n");
+    pc.printf("It takes some time. Please wait..\r\n");
 
-int main()
-{
-    UIPEthernet.begin(MY_MAC,MY_IP);
+#if defined(DHCP)
+    if(UIPEthernet.begin(MY_MAC) != 1) {
+        pc.printf("No DHCP server found.\r\n");
+        pc.printf("Exiting application\r\n");
+        return 0;
+    }
+
+    pc.printf("DHCP server found and configuration info received\r\n");
+
+    IPAddress   localIP = UIPEthernet.localIP();
+    pc.printf("Local IP = ");
+    for(uint8_t i = 0; i < 3; i++)
+        pc.printf("%d.", localIP[i]);
+    pc.printf("%d\r\n", localIP[3]);
+#else
+    UIPEthernet.begin(MY_MAC, MY_IP);
+#endif
+
     myServer.begin();
     while(1) {
-        EthernetClient client = myServer.available();
-        if (client) {
-            size_t size = client.available();
+        EthernetClient  client = myServer.available();
+        if(client) {
+            size_t  size = client.available();
             if(size > 0) {
-                char* buf = (char*)malloc(size);
+                char*   buf = (char*)malloc(size);
                 size = client.read((uint8_t*)buf, size);
                 if(buf[0] == 'G' && buf[1] == 'E' && buf[2] == 'T') {
                     serial.printf("GET request received:\n\r");
                     serial.printf(buf);
-                    char echoHeader[256] = {};
-                    sprintf(echoHeader,"HTTP/1.1 200 OK\r\nContent-Length: %d\r\nContent-Type: text\r\nConnection: About to close\r\n\r\n", size);
-                    client.write((uint8_t*)echoHeader,strlen(echoHeader));
+                    char    echoHeader[256] = { };
+                    sprintf
+                    (
+                        echoHeader,
+                        "HTTP/1.1 200 OK\r\nContent-Length: %d\r\nContent-Type: text\r\nConnection: About to close\r\n\r\n",
+                        size
+                    );
+                    client.write((uint8_t*)echoHeader, strlen(echoHeader));
                     client.write((uint8_t*)buf, size);
                     serial.printf("Echo done.\r\n");
                 }