Wei Chang Shen / DMSupport

Dependencies:   DM_FATFileSystem EthernetInterface HTTPClient mbed-rtos mbed-src

Fork of DMSupport by Embedded Artists

Memory/InternalEEPROM.h@42:39e97a2ea6be, 2016-06-02 (annotated)

Committer:
destinyXfate
Date:
Thu Jun 02 05:03:52 2016 +0000
Revision:
42:39e97a2ea6be
Parent:
34:fc366bab393f 
;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:6b68dac0d986 1 /*
embeddedartists 0:6b68dac0d986 2 * Copyright 2014 Embedded Artists AB
embeddedartists 0:6b68dac0d986 3 *
embeddedartists 0:6b68dac0d986 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 0:6b68dac0d986 5 * you may not use this file except in compliance with the License.
embeddedartists 0:6b68dac0d986 6 * You may obtain a copy of the License at
embeddedartists 0:6b68dac0d986 7 *
embeddedartists 0:6b68dac0d986 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 0:6b68dac0d986 9 *
embeddedartists 0:6b68dac0d986 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 0:6b68dac0d986 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 0:6b68dac0d986 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 0:6b68dac0d986 13 * See the License for the specific language governing permissions and
embeddedartists 0:6b68dac0d986 14 * limitations under the License.
embeddedartists 0:6b68dac0d986 15 */
embeddedartists 0:6b68dac0d986 16
embeddedartists 0:6b68dac0d986 17 #ifndef INTERNAL_EEPROM_H
embeddedartists 0:6b68dac0d986 18 #define INTERNAL_EEPROM_H
embeddedartists 0:6b68dac0d986 19
embeddedartists 0:6b68dac0d986 20 #include "mbed.h"
embeddedartists 0:6b68dac0d986 21
embeddedartists 0:6b68dac0d986 22 /**
embeddedartists 17:4ea2509445ac 23 * Internal EEPROM Driver
embeddedartists 0:6b68dac0d986 24 */
embeddedartists 0:6b68dac0d986 25 class InternalEEPROM {
embeddedartists 0:6b68dac0d986 26 public:
embeddedartists 0:6b68dac0d986 27
embeddedartists 0:6b68dac0d986 28 enum Constants {
embeddedartists 0:6b68dac0d986 29 EEPROM_MEMORY_SIZE = 4032,
embeddedartists 0:6b68dac0d986 30 EEPROM_PAGE_SIZE = 64,
embeddedartists 0:6b68dac0d986 31 EEPROM_NUM_PAGES = EEPROM_MEMORY_SIZE/EEPROM_PAGE_SIZE,
embeddedartists 0:6b68dac0d986 32 };
embeddedartists 0:6b68dac0d986 33
embeddedartists 0:6b68dac0d986 34 InternalEEPROM();
embeddedartists 0:6b68dac0d986 35 ~InternalEEPROM();
embeddedartists 0:6b68dac0d986 36
embeddedartists 17:4ea2509445ac 37 /** Initializes the EEPROM
embeddedartists 0:6b68dac0d986 38 *
embeddedartists 0:6b68dac0d986 39 * @returns
embeddedartists 0:6b68dac0d986 40 * Ok on success
embeddedartists 0:6b68dac0d986 41 * An error code on failure
embeddedartists 0:6b68dac0d986 42 */
embeddedartists 0:6b68dac0d986 43 void init();
embeddedartists 0:6b68dac0d986 44
embeddedartists 34:fc366bab393f 45 /** Put the internal EEPROM in a low power state
embeddedartists 34:fc366bab393f 46 */
embeddedartists 0:6b68dac0d986 47 void powerDown();
embeddedartists 0:6b68dac0d986 48
embeddedartists 34:fc366bab393f 49 /** Reads size bytes from offset addr
embeddedartists 34:fc366bab393f 50 *
embeddedartists 34:fc366bab393f 51 * Note that this function will power up the EEPROM so it is
embeddedartists 34:fc366bab393f 52 * recommended to call powerDown() when finished reading.
embeddedartists 34:fc366bab393f 53 *
embeddedartists 34:fc366bab393f 54 * @param addr the offset to read from
embeddedartists 34:fc366bab393f 55 * @param data buffer to store the read data in
embeddedartists 34:fc366bab393f 56 * @param size number of bytes to read
embeddedartists 34:fc366bab393f 57 *
embeddedartists 34:fc366bab393f 58 * @returns
embeddedartists 34:fc366bab393f 59 * The number of bytes read
embeddedartists 34:fc366bab393f 60 */
embeddedartists 20:9df19da50290 61 int read(uint32_t addr, uint8_t* data, uint32_t size);
embeddedartists 34:fc366bab393f 62
embeddedartists 34:fc366bab393f 63 /** Writes size bytes to offset addr
embeddedartists 34:fc366bab393f 64 *
embeddedartists 34:fc366bab393f 65 * Note that this function will power up the EEPROM so it is
embeddedartists 34:fc366bab393f 66 * recommended to call powerDown() when finished writing.
embeddedartists 34:fc366bab393f 67 *
embeddedartists 34:fc366bab393f 68 * @param addr the offset to write to
embeddedartists 34:fc366bab393f 69 * @param data the data to write
embeddedartists 34:fc366bab393f 70 * @param size number of bytes to write
embeddedartists 34:fc366bab393f 71 *
embeddedartists 34:fc366bab393f 72 * @returns
embeddedartists 34:fc366bab393f 73 * The number of bytes written
embeddedartists 34:fc366bab393f 74 */
embeddedartists 20:9df19da50290 75 int write(uint32_t addr, const uint8_t* data, uint32_t size);
embeddedartists 0:6b68dac0d986 76
embeddedartists 0:6b68dac0d986 77 /** Returns the size (in bytes) of the internal EEPROM
embeddedartists 0:6b68dac0d986 78 *
embeddedartists 0:6b68dac0d986 79 * @returns
embeddedartists 0:6b68dac0d986 80 * The size in bytes
embeddedartists 0:6b68dac0d986 81 */
embeddedartists 0:6b68dac0d986 82 uint32_t memorySize() { return EEPROM_MEMORY_SIZE; }
embeddedartists 0:6b68dac0d986 83
embeddedartists 0:6b68dac0d986 84 private:
embeddedartists 0:6b68dac0d986 85
embeddedartists 0:6b68dac0d986 86 bool _initialized;
embeddedartists 0:6b68dac0d986 87
embeddedartists 0:6b68dac0d986 88 void powerUp();
embeddedartists 0:6b68dac0d986 89 void clearInterrupt(uint32_t mask);
embeddedartists 0:6b68dac0d986 90 void waitForInterrupt(uint32_t mask);
embeddedartists 0:6b68dac0d986 91 void setAddr(uint32_t pageAddr, uint32_t pageOffset);
embeddedartists 0:6b68dac0d986 92 void setCmd(uint32_t cmd);
embeddedartists 0:6b68dac0d986 93 void readPage(uint32_t pageAddr, uint32_t pageOffset, uint8_t* buf, uint32_t size);
embeddedartists 0:6b68dac0d986 94 void writePage(uint32_t pageAddr, uint32_t pageOffset, const uint8_t* buf, uint32_t size);
embeddedartists 0:6b68dac0d986 95 void eraseOrProgramPage(uint32_t pageAddr);
embeddedartists 0:6b68dac0d986 96 };
embeddedartists 0:6b68dac0d986 97
embeddedartists 0:6b68dac0d986 98 #endif