USBMSD example using a file system located in RAM

Fork of RAM_DISK by Samuel Mokrani

Committer:
G40
Date:
Sat Jun 10 16:18:30 2017 +0000
Revision:
2:2c92946b6568
Parent:
1:3d0c421fe52b
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samux 1:3d0c421fe52b 1 /* mbed USBMSD_Ram Library
samux 0:ba333853266b 2 *
samux 0:ba333853266b 3 * Permission is hereby granted, free of charge, to any person obtaining a copy
samux 0:ba333853266b 4 * of this software and associated documentation files (the "Software"), to deal
samux 0:ba333853266b 5 * in the Software without restriction, including without limitation the rights
samux 0:ba333853266b 6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
samux 0:ba333853266b 7 * copies of the Software, and to permit persons to whom the Software is
samux 0:ba333853266b 8 * furnished to do so, subject to the following conditions:
samux 0:ba333853266b 9 *
samux 0:ba333853266b 10 * The above copyright notice and this permission notice shall be included in
samux 0:ba333853266b 11 * all copies or substantial portions of the Software.
samux 0:ba333853266b 12 *
samux 0:ba333853266b 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
samux 0:ba333853266b 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
samux 0:ba333853266b 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
samux 0:ba333853266b 16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
samux 0:ba333853266b 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
samux 0:ba333853266b 18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
samux 0:ba333853266b 19 * THE SOFTWARE.
samux 0:ba333853266b 20 */
samux 0:ba333853266b 21
samux 0:ba333853266b 22 #ifndef USBMSD_RAM_H
samux 0:ba333853266b 23 #define USBMSD_RAM_H
samux 0:ba333853266b 24
samux 0:ba333853266b 25 #include "mbed.h"
samux 0:ba333853266b 26 #include "USBMSD.h"
samux 0:ba333853266b 27
samux 1:3d0c421fe52b 28 #define NB_SECTORS (20)
samux 1:3d0c421fe52b 29
samux 0:ba333853266b 30 /** Use the SDcard as mass storage device using the USBMSD class
samux 0:ba333853266b 31 *
samux 0:ba333853266b 32 * @code
samux 0:ba333853266b 33 * #include "mbed.h"
samux 0:ba333853266b 34 * #include "USBMSD_Ram.h"
samux 0:ba333853266b 35 *
samux 0:ba333853266b 36 * USBMSD_Ram sd(p5, p6, p7, p8);
samux 0:ba333853266b 37 *
samux 0:ba333853266b 38 * int main() {
samux 0:ba333853266b 39 * while(1);
samux 0:ba333853266b 40 * }
samux 0:ba333853266b 41 *
samux 0:ba333853266b 42 * @endcode
samux 0:ba333853266b 43 */
samux 0:ba333853266b 44 class USBMSD_Ram : public USBMSD {
samux 0:ba333853266b 45 public:
samux 0:ba333853266b 46
samux 1:3d0c421fe52b 47
samux 0:ba333853266b 48 USBMSD_Ram();
samux 0:ba333853266b 49 virtual int disk_initialize();
G40 2:2c92946b6568 50 virtual int disk_write(const uint8_t * data, uint64_t block,uint8_t);
G40 2:2c92946b6568 51 virtual int disk_read(uint8_t * data, uint64_t block,uint8_t);
samux 0:ba333853266b 52 virtual int disk_status();
samux 0:ba333853266b 53 virtual int disk_sync();
samux 1:3d0c421fe52b 54 virtual uint64_t disk_sectors();
samux 1:3d0c421fe52b 55 virtual uint64_t disk_size();
samux 0:ba333853266b 56
samux 0:ba333853266b 57 protected:
samux 0:ba333853266b 58 int _status;
samux 1:3d0c421fe52b 59 char disk_image[512*NB_SECTORS];
samux 0:ba333853266b 60
samux 0:ba333853266b 61 };
samux 0:ba333853266b 62
samux 0:ba333853266b 63 #endif