Example program for USBMSD device (USB Flashdisk) library using AT45DBxx serial flash storage chip. Works with 2, 4, 8, 16, 32 and 64 Mbit chips within AT45DBxx

Dependencies:   USBDevice USBMSD_AT45 mbed



File content as of revision 0:42f27224d4d7:

#include "mbed.h"
#include "USBMSD_AT45.h"

USBMSD_AT45 Flash(p5, p6, p7, p8, 512);  // Mosi, Miso, Sclk, CS, Size of block being transported over USB
                                  // each time. Can be 512, 1024, 2048, 4096. Best is to select same
                                  // size as AT45DBxx SRAM buffer size. If page size of flash is not
                                  // binary 2^N (256, 512, 1024 bytes) but is 264, 528 or 1056 bytes
                                  // before each write we read block being written to SRAM then rewrite
                                  // part of them with data from host and write whole SRAM buffer back
                                  // to flash. This avoids to data being rewritten in other blocks
                                  // we actually do not write to.
int main() {

    while(1) {
   // Do something else here