File content as of revision 5:9261d5bd633b:

/*
This program is based on Richard Green's RAM_DISK program for the KL25Z

So all hail the Hypnotoad!!!!

(And Richard Green, but only after the Hypnotoad)
*/



#include "mbed.h"
#include "USBMSD_Ram.h"

DigitalOut myled(LED1);
USBMSD_Ram ram;

void usbCallback(bool available)
{
    if (available) {
        FILE *fp = fopen("/USB/IN.txt", "r");
        char buffer[100];
        fgets (buffer, 100, fp);
        printf("%s\r\n", buffer);
        fclose(fp);
    }
}

int main()
{
    ram.attachUSB(&usbCallback);

    wait(0.1);
    printf("Hello World!\r\n");

    //Connect USB
    ram.connect();
    
    FILE* fp;
    char buffer[101];
    printf("Type your text here! (100 max length)\n");
    while(1) {
        gets(buffer);
        myled = !myled;
        
        //Open file for write, keep trying until we succeed
        //This is needed because if USB happens to be writing it will fail
        while(1) {
            fp = fopen("/USB/OUT.txt", "w");
            if (fp != NULL)
                break;
            }
        fprintf(fp, buffer);
        fclose(fp);
        
    }

}