Implementation of a LocalFileSystem using S25FL216K serial flash memory. Currently only 256kB available!
Fork of S25FL216K_USBFileSystem by
Diff: Flash_USBFileSystem.cpp
- Revision:
- 5:c8918e47c566
- Parent:
- 4:2642d0729f55
--- a/Flash_USBFileSystem.cpp Fri Dec 19 14:45:04 2014 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,51 +0,0 @@ -/* mbed USBMSD_Ram Library - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include "Flash_USBFileSystem.h" - -FlashUSB::FlashUSB(PinName mosi, PinName miso, PinName sclk, PinName cs) : USBFileSystem("USB"), flash(mosi, miso, sclk, cs) { - //no init - _status = 0x01; -} - -int FlashUSB::disk_initialize() { - // OK - _status = 0x00; - return 0; -} - -int FlashUSB::_disk_write(const uint8_t * buffer, uint64_t block_number) { - flash.eraseSector(block_number*4096); - flash.write(block_number*4096, (char*) buffer, 256); - flash.write(block_number*4096+256, (char*) buffer+256, 256); - return 0; -} - -int FlashUSB::disk_read(uint8_t * buffer, uint64_t block_number) { - flash.read(block_number*4096, (char*) buffer, 512); - return 0; -} - -int FlashUSB::_disk_status() { return _status; } -int FlashUSB::disk_sync() { return 0; } -uint64_t FlashUSB::disk_sectors() { return 512; } - - \ No newline at end of file