main.cpp

00001 #include "mbed.h"
00002 #include "Ethernet.h"
00003 #include "hexview.h"
00004 
00005 using namespace mbed;
00006 
00007 DigitalOut led4(LED4);
00008 
00009 Ethernet eth;
00010 
00011 /*
00012 __packed struct eth {
00013     unsigned char    dst[6];
00014     unsigned char    src[6];
00015     unsigned short   type;
00016 };
00017 
00018 void show(char *buffer, int size) {
00019     eth *e = (eth *)buffer;
00020     printf("Destination:  %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
00021             e->dst[0], e->dst[1], e->dst[2], e->dst[3], e->dst[4], e->dst[5]);
00022     printf("Source: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
00023             e->src[0], e->src[1], e->src[2], e->src[3], e->src[4], e->src[5]);
00024   
00025     printf("Type %hd\n", eth->type);
00026     hexview(buffer, size);
00027 }
00028 */
00029 
00030 unsigned short htons(unsigned short n) {               // Host short to network shor
00031   return ((n & 0xff) << 8) | ((n & 0xff00) >> 8);      // Byte swapping
00032 }
00033 
00034 void show(char *buf, int size) {
00035     printf("Destination:  %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
00036             buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
00037     printf("Source: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
00038             buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]);
00039   
00040     printf("Type %hd\n", htons((short)buf[12]));
00041     
00042     hexview(buf, size);
00043 }
00044 
00045 
00046 int main() {
00047     char buffer[0x600];
00048     int size = 0;
00049     
00050     while(1) {
00051         if((size = eth.receive()) != 0) {
00052             eth.read(buffer, size);
00053             show(buffer, size);
00054         }
00055         
00056         led4 = 1;
00057         wait(0.2);
00058         led4 = 0;
00059         wait(0.2);
00060     }
00061 }