main.cpp

00001 /*
00002 This program is based on Richard Green's RAM_DISK program for the KL25Z
00003 
00004 So all hail the Hypnotoad!!!!
00005 
00006 (And Richard Green, but only after the Hypnotoad)
00007 */
00008 
00009 
00010 
00011 #include "mbed.h"
00012 #include "USBMSD_Ram.h"
00013 
00014 DigitalOut myled(LED1);
00015 USBMSD_Ram ram;
00016 
00017 void usbCallback(bool available)
00018 {
00019     if (available) {
00020         FILE *fp = fopen("/USB/IN.txt", "r");
00021         char buffer[100];
00022         fgets (buffer, 100, fp);
00023         printf("%s\r\n", buffer);
00024         fclose(fp);
00025     }
00026 }
00027 
00028 int main()
00029 {
00030     ram.attachUSB(&usbCallback);
00031 
00032     wait(0.1);
00033     printf("Hello World!\r\n");
00034 
00035     //Connect USB
00036     ram.connect();
00037     
00038     FILE* fp;
00039     char buffer[101];
00040     printf("Type your text here! (100 max length)\n");
00041     while(1) {
00042         gets(buffer);
00043         myled = !myled;
00044         
00045         //Open file for write, keep trying until we succeed
00046         //This is needed because if USB happens to be writing it will fail
00047         while(1) {
00048             fp = fopen("/USB/OUT.txt", "w");
00049             if (fp != NULL)
00050                 break;
00051             }
00052         fprintf(fp, buffer);
00053         fclose(fp);
00054         
00055     }
00056 
00057 }