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Converted EEPROM library to use nvs instead of partition. (#2678)

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* Converted EEPROM library to use nvs instead of partition.  Removed eeprom partition from all partition table CSV files.
* Changed variable names, added some comments, formatting as per me-no-dev's requests
* Checks for memory on malloc
* Moved include nvs.h from header to code
* Reworked the extra example to make it more clear how to actually use the library and persist data
This commit is contained in:
lbernstone
2019-04-23 14:55:12 -06:00
committed by Me No Dev
parent 0202ba7c21
commit 619568db5b
18 changed files with 190 additions and 128 deletions
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20
libraries/EEPROM/src/EEPROM.h
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@ -1,10 +1,9 @@
/*
EEPROM.h -ported by Paolo Becchi to Esp32 from esp8266 EEPROM
-Modified by Elochukwu Ifediora <ifedioraelochukwuc@gmail.com>
-Converted to nvs lbernstone@gmail.com
Uses a one sector flash partition defined in partition table
OR
Multiple sector flash partitions defined by the name column in the partition table
Uses a nvs byte array to emulate EEPROM
Copyright (c) 2014 Ivan Grokhotkov. All rights reserved.
This file is part of the esp8266 core for Arduino environment.
@ -30,19 +29,9 @@
#define EEPROM_FLASH_PARTITION_NAME "eeprom"
#endif
#include <Arduino.h>
extern "C" {
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <esp_partition.h>
}
typedef uint32_t nvs_handle;
//
// need to define AT LEAST a flash partition for EEPROM with above name
//
// eeprom , data , 0x99, start address, 0x1000
//
class EEPROMClass {
public:
EEPROMClass(uint32_t sector);
@ -117,11 +106,10 @@ class EEPROMClass {
template <class T> T writeAll (int address, const T &);
protected:
uint32_t _sector;
nvs_handle _handle;
uint8_t* _data;
size_t _size;
bool _dirty;
const esp_partition_t * _mypart;
const char* _name;
uint32_t _user_defined_size;
};