main.cpp

00001 #include "mbed.h"
00002 #include "USBHostMSD.h"
00003 #include "ramstats.h"
00004 
00005 Serial pc(USBTX, USBRX); // tx, rx
00006 
00007 DigitalOut led(LED1);
00008 
00009 void msd_task(void const *) {
00010     
00011     USBHostMSD msd("usb");
00012     int i = 0;
00013     
00014     while(1) {
00015         
00016         // try to connect a MSD device
00017         while(!msd.connect()) {
00018             Thread::wait(500);
00019         }
00020         
00021         // in a loop, append a file
00022         // if the device is disconnected, we try to connect it again
00023         while(1) {
00024             
00025             // append a file
00026             FILE * fp = fopen("/usb/test1.txt", "a");
00027         
00028             if (fp != NULL) {
00029                 fprintf(fp, "Hello fun SD Card World: %d!\r\n", i++);
00030                 printf("Goodbye World!\r\n");
00031                 fclose(fp);
00032             } else {
00033                 printf("FILE == NULL\r\n");
00034             }
00035             
00036             Thread::wait(500);
00037         
00038             // if device disconnected, try to connect again
00039             if (!msd.connected())
00040                 break;
00041         break;}
00042             
00043     break;}
00044     DisplayRAMBanks("\r\nmsd thread:\r\n");
00045 }
00046 
00047 
00048 int main() {
00049     pc.baud(115200);
00050     Thread msdTask(msd_task, NULL, osPriorityNormal, 1024 * 4);
00051     DisplayRAMBanks("\r\nmain thread:\r\n");
00052     while(1) {
00053         led=!led;
00054         Thread::wait(500);
00055     }
00056 }