USB File System Lab
Richard White.
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Note orientation of the USB Connector (the Gold contacts are facing the breadboard)
Observe the wiring of the USB connector to the target
Pin 1 = VCC = Pin VU on the target board
Pin 2 = D- = D- on the target board
Pin 3 = D+ = D+ on the target board
Pin 4 = GND = GND on the target board
Edit the Local File System Lab file to include the MSCFileSystem for USB function.
#include "mbed.h"
#include "MSCFileSystem.h"
AnalogIn ain (p20);
DigitalOut myled(LED1);
//LocalFileSystem fs ("fs"); // do this first as a local file system to the board to store Analogue results
MSCFileSystem fs("fs"); // do this last to demonstrate loading to a USB Flash stick the results
int main() {
FILE *fp = fopen("/fs/data.csv","w");
for (int i = 0; i < 100 ; i++) {
fprintf(fp,"%.2f\n",ain.read());
wait (0.1);
}
fclose(fp);
myled=1;
}
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