/* support_eeprom.ino - eeprom support for Sonoff-Tasmota Copyright (C) 2021 Theo Arends & Gerhard Mutz This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . supports hardware i2c eeprom 24c256 and flash eeprom simulation on ESP8266 and ESP32 all ESP8266 linker files contain 4k eeprom partition ESP32 requires esp32_partition_app1984k_spiffs60k.csv for 4k eeprom */ #ifdef USE_EEPROM #ifdef USE_24C256 // i2c eeprom #include #define EEPROM_ADDRESS 0x50 static Eeprom24C128_256 m_eeprom(EEPROM_ADDRESS); void eeprom_writeBytes(uint32_t addr, uint32_t len, uint8_t *buff) { m_eeprom.writeBytes(addr,len,(uint8_t*)buff); } void eeprom_readBytes(uint32_t addr, uint32_t len, uint8_t *buff) { m_eeprom.readBytes(addr,len,(uint8_t*)buff); } uint32_t eeprom_init(uint32_t size) { if (TasmotaGlobal.i2c_enabled[0]) { if (I2cActive(EEPROM_ADDRESS) || I2cSetDevice(EEPROM_ADDRESS)) { // eeprom is present I2cSetActiveFound(EEPROM_ADDRESS, "24C256"); return 1; } } return 0; } #else // USE_24C256 #ifdef ESP8266 // esp8266 uses eeprom section uint32_t eeprom_init(uint32_t size) { EEPROM.begin(size); return 1; } void eeprom_writeBytes(uint32_t adr, uint32_t len, uint8_t *buf) { for (uint32_t cnt=0; cnt