Erik -
Implementation of a LocalFileSystem using S25FL216K serial flash memory. Currently only 256kB available!
Dependencies: S25FL216K USBFileSystem
Dependents: S25FL216K_HelloWorld
Revision 0:9056eb697726, committed 2013-07-31
- Comitter:
- Sissors
- Date:
- Wed Jul 31 19:18:22 2013 +0000
- Child:
- 1:355e49586f92
- Commit message:
- v0.1, only 256kB accessible!
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Flash_USBFileSystem.cpp Wed Jul 31 19:18:22 2013 +0000
@@ -0,0 +1,51 @@
+/* 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
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Flash_USBFileSystem.h Wed Jul 31 19:18:22 2013 +0000
@@ -0,0 +1,28 @@
+#ifndef S25FL216K_USB
+#define S25FL216K_USB
+
+#include "mbed.h"
+#include "USBFileSystem.h"
+#include "S25FL216K.h"
+
+/** Local filesystem made with S25FL216K serial flash memory + USBFileSystem library
+*/
+class FlashUSB : public USBFileSystem {
+public:
+
+ FlashUSB(PinName mosi, PinName miso, PinName sclk, PinName cs);
+ virtual int disk_initialize();
+ virtual int _disk_write(const uint8_t * data, uint64_t block);
+ virtual int disk_read(uint8_t * data, uint64_t block);
+ virtual int _disk_status();
+ virtual int disk_sync();
+ virtual uint64_t disk_sectors();
+
+protected:
+ int _status;
+ S25FL216K flash;
+
+
+};
+
+#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/S25FL216K.lib Wed Jul 31 19:18:22 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Sissors/code/S25FL216K/#2bcefc9e64f8
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/USBFileSystem.lib Wed Jul 31 19:18:22 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Sissors/code/USBFileSystem/#dabe3383ef23
S25FL216K