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/** | ||
* Marlin 3D Printer Firmware | ||
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] | ||
* | ||
* Based on Sprinter and grbl. | ||
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm | ||
* | ||
* 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 <https://www.gnu.org/licenses/>. | ||
* | ||
*/ | ||
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/** | ||
* PersistentStore for Arduino-style EEPROM interface | ||
* with simple implementations supplied by Marlin. | ||
*/ | ||
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#if defined(STM32F1) || defined(STM32F4) | ||
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#include "../../inc/MarlinConfig.h" | ||
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#if ENABLED(IIC_BL24CXX_EEPROM) | ||
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#include "../shared/eeprom_if.h" | ||
#include "../shared/eeprom_api.h" | ||
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// | ||
// PersistentStore | ||
// | ||
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#ifndef MARLIN_EEPROM_SIZE | ||
#error "MARLIN_EEPROM_SIZE is required for IIC_BL24CXX_EEPROM." | ||
#endif | ||
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size_t PersistentStore::capacity() { return MARLIN_EEPROM_SIZE; } | ||
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bool PersistentStore::access_start() { eeprom_init(); return true; } | ||
bool PersistentStore::access_finish() { return true; } | ||
uint8_t rvalue; | ||
bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) { | ||
while (size--) { | ||
uint8_t v = *value; | ||
uint8_t * const p = (uint8_t * const)pos; | ||
// EEPROM has only ~100,000 write cycles, | ||
// so only write bytes that have changed! | ||
if (v != eeprom_read_byte(p)) { | ||
eeprom_write_byte(p, v); | ||
delay(2); | ||
rvalue = eeprom_read_byte(p); | ||
if (rvalue != v) { | ||
SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE); | ||
return true; | ||
} | ||
} | ||
crc16(crc, &v, 1); | ||
pos++; | ||
value++; | ||
} | ||
return false; | ||
} | ||
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bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t *crc, const bool writing/*=true*/) { | ||
do { | ||
uint8_t * const p = (uint8_t * const)pos; | ||
uint8_t c = eeprom_read_byte(p); | ||
if (writing) *value = c; | ||
crc16(crc, &c, 1); | ||
pos++; | ||
value++; | ||
} while (--size); | ||
return false; | ||
} | ||
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#endif // IIC_BL24CXX_EEPROM | ||
#endif // STM32F1 || STM32F4 |
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/** | ||
* Marlin 3D Printer Firmware | ||
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] | ||
* | ||
* Based on Sprinter and grbl. | ||
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm | ||
* | ||
* 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 <https://www.gnu.org/licenses/>. | ||
* | ||
*/ | ||
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/** | ||
* Platform-independent Arduino functions for I2C EEPROM. | ||
* Enable USE_SHARED_EEPROM if not supplied by the framework. | ||
*/ | ||
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#if defined(STM32F1) || defined(STM32F4) | ||
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#include "../../inc/MarlinConfig.h" | ||
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#if ENABLED(IIC_BL24CXX_EEPROM) | ||
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#include "../../libs/BL24CXX.h" | ||
#include "../shared/eeprom_if.h" | ||
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void eeprom_init() { BL24CXX::init(); } | ||
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// ------------------------ | ||
// Public functions | ||
// ------------------------ | ||
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void eeprom_write_byte(uint8_t *pos, unsigned char value) { | ||
const unsigned eeprom_address = (unsigned)pos; | ||
return BL24CXX::writeOneByte(eeprom_address, value); | ||
} | ||
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uint8_t eeprom_read_byte(uint8_t *pos) { | ||
const unsigned eeprom_address = (unsigned)pos; | ||
return BL24CXX::readOneByte(eeprom_address); | ||
} | ||
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#endif // IIC_BL24CXX_EEPROM | ||
#endif // STM32F1 || STM32F4 |
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/** | ||
* Marlin 3D Printer Firmware | ||
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] | ||
* | ||
* Based on Sprinter and grbl. | ||
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm | ||
* | ||
* 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 <https://www.gnu.org/licenses/>. | ||
* | ||
*/ | ||
#pragma once | ||
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// If no real or emulated EEPROM selected, fall back to SD emulation | ||
#if USE_FALLBACK_EEPROM | ||
#define SDCARD_EEPROM_EMULATION | ||
#elif EITHER(I2C_EEPROM, SPI_EEPROM) | ||
#define USE_SHARED_EEPROM 1 | ||
#endif |
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