John Mitchell / DMSupport

Subdirectory provided by Embedded Artists

Dependencies:   DM_FATFileSystem DM_HttpServer DM_USBHost EthernetInterface USBDevice mbed-rpc mbed-rtos mbed-src

Dependents:   lpc4088_displaymodule_hello_world_Sept_2018

Fork of DMSupport by Embedded Artists

FileSystems/RAMFileSystem.h@41:ac490f69398f, 2018-10-04 (annotated)

Committer:
jmitc91516
Date:
Thu Oct 04 08:30:19 2018 +0000
Revision:
41:ac490f69398f
Parent:
9:a33326afd686 
To demonstrate a problem with the dm_board_config.h file - the project will not build if it is in its normal place in the root directory, but builds OK if I copy it to the DMSupport subdirectory.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 9:a33326afd686 1 /*
embeddedartists 9:a33326afd686 2 * Copyright 2014 Embedded Artists AB
embeddedartists 9:a33326afd686 3 *
embeddedartists 9:a33326afd686 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 9:a33326afd686 5 * you may not use this file except in compliance with the License.
embeddedartists 9:a33326afd686 6 * You may obtain a copy of the License at
embeddedartists 9:a33326afd686 7 *
embeddedartists 9:a33326afd686 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 9:a33326afd686 9 *
embeddedartists 9:a33326afd686 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 9:a33326afd686 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 9:a33326afd686 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 9:a33326afd686 13 * See the License for the specific language governing permissions and
embeddedartists 9:a33326afd686 14 * limitations under the License.
embeddedartists 9:a33326afd686 15 */
embeddedartists 9:a33326afd686 16
embeddedartists 0:6b68dac0d986 17 #ifndef RAMFILESYSTEM_H
embeddedartists 0:6b68dac0d986 18 #define RAMFILESYSTEM_H
embeddedartists 0:6b68dac0d986 19
embeddedartists 0:6b68dac0d986 20 #include "mbed.h"
embeddedartists 0:6b68dac0d986 21 #include "FATFileSystem.h"
embeddedartists 0:6b68dac0d986 22 #include "sdram.h"
embeddedartists 0:6b68dac0d986 23 #include <stdint.h>
embeddedartists 0:6b68dac0d986 24
embeddedartists 0:6b68dac0d986 25 /** Creates a FAT file system in SDRAM
embeddedartists 0:6b68dac0d986 26 *
embeddedartists 0:6b68dac0d986 27 * @code
embeddedartists 0:6b68dac0d986 28 * #include "mbed.h"
embeddedartists 0:6b68dac0d986 29 * #include "RAMFileSystem.h"
embeddedartists 0:6b68dac0d986 30 *
embeddedartists 0:6b68dac0d986 31 * RAMFileSystem ramfs(0xA0000000, 4*1024*1024, "ram"); // 4MB of ram starting at 0xA...
embeddedartists 0:6b68dac0d986 32 *
embeddedartists 0:6b68dac0d986 33 * int main() {
embeddedartists 0:6b68dac0d986 34 * sdram_init();
embeddedartists 0:6b68dac0d986 35 *
embeddedartists 0:6b68dac0d986 36 * FILE *fp = fopen("/ram/myfile.txt", "w");
embeddedartists 0:6b68dac0d986 37 * fprintf(fp, "Hello World!\n");
embeddedartists 0:6b68dac0d986 38 * fclose(fp);
embeddedartists 0:6b68dac0d986 39 * }
embeddedartists 0:6b68dac0d986 40 * @endcode
embeddedartists 0:6b68dac0d986 41 */
embeddedartists 0:6b68dac0d986 42 class RAMFileSystem : public FATFileSystem {
embeddedartists 0:6b68dac0d986 43 public:
embeddedartists 0:6b68dac0d986 44
embeddedartists 0:6b68dac0d986 45 /** Create the File System in RAM
embeddedartists 0:6b68dac0d986 46 *
embeddedartists 0:6b68dac0d986 47 * @param addr Start of memory to use for file system
embeddedartists 0:6b68dac0d986 48 * @param size Number of bytes to use for file system
embeddedartists 0:6b68dac0d986 49 * @param name The name used to access the virtual filesystem
embeddedartists 0:6b68dac0d986 50 */
embeddedartists 0:6b68dac0d986 51 RAMFileSystem(uint32_t addr, uint32_t size, const char* name);
embeddedartists 0:6b68dac0d986 52 virtual int disk_initialize();
embeddedartists 0:6b68dac0d986 53 virtual int disk_status();
embeddedartists 0:6b68dac0d986 54 virtual int disk_read(uint8_t * buffer, uint64_t sector, uint8_t count);
embeddedartists 0:6b68dac0d986 55 virtual int disk_write(const uint8_t * buffer, uint64_t sector, uint8_t count);
embeddedartists 0:6b68dac0d986 56 virtual int disk_sync();
embeddedartists 0:6b68dac0d986 57 virtual uint64_t disk_sectors();
embeddedartists 0:6b68dac0d986 58
embeddedartists 0:6b68dac0d986 59 uint64_t disk_size();
embeddedartists 0:6b68dac0d986 60
embeddedartists 0:6b68dac0d986 61 protected:
embeddedartists 0:6b68dac0d986 62
embeddedartists 0:6b68dac0d986 63 uint32_t memStart;
embeddedartists 0:6b68dac0d986 64 uint32_t memSize;
embeddedartists 0:6b68dac0d986 65 int status;
embeddedartists 0:6b68dac0d986 66 };
embeddedartists 0:6b68dac0d986 67
embeddedartists 0:6b68dac0d986 68 #endif