Scott Lahteine
4 years ago
committed by
GitHub
GitHub
58 changed files with 365 additions and 256 deletions
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/**
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* Marlin 3D Printer Firmware |
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* |
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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* Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com |
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* Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com |
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* Copyright (c) 2016 Victor Perez victor_pv@hotmail.com |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* |
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*/ |
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#ifdef ARDUINO_ARCH_SAM |
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#include "../../inc/MarlinConfig.h" |
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#if USE_WIRED_EEPROM |
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#include "../shared/eeprom_if.h" |
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#include "../shared/eeprom_api.h" |
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size_t PersistentStore::capacity() { return E2END + 1; } |
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bool PersistentStore::access_start() { return true; } |
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bool PersistentStore::access_finish() { return true; } |
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bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) { |
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while (size--) { |
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uint8_t * const p = (uint8_t * const)pos; |
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uint8_t v = *value; |
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// EEPROM has only ~100,000 write cycles,
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// so only write bytes that have changed!
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if (v != eeprom_read_byte(p)) { |
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eeprom_write_byte(p, v); |
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delay(2); |
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if (eeprom_read_byte(p) != v) { |
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SERIAL_ECHO_MSG(STR_ERR_EEPROM_WRITE); |
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return true; |
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} |
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} |
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crc16(crc, &v, 1); |
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pos++; |
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value++; |
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}; |
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return false; |
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} |
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bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t *crc, const bool writing/*=true*/) { |
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do { |
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uint8_t c = eeprom_read_byte((uint8_t*)pos); |
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if (writing) *value = c; |
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crc16(crc, &c, 1); |
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pos++; |
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value++; |
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} while (--size); |
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return false; |
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} |
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#endif // USE_WIRED_EEPROM
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#endif // ARDUINO_ARCH_SAM
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@ -0,0 +1,64 @@ |
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/**
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* Marlin 3D Printer Firmware |
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* |
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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* Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com |
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* Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com |
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* Copyright (c) 2016 Victor Perez victor_pv@hotmail.com |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* |
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*/ |
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#if defined(ARDUINO_ARCH_STM32) && !defined(STM32GENERIC) |
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#include "../../inc/MarlinConfig.h" |
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#if ENABLED(SRAM_EEPROM_EMULATION) |
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#include "../shared/eeprom_if.h" |
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#include "../shared/eeprom_api.h" |
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size_t PersistentStore::capacity() { return 4096; } // 4K of SRAM
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bool PersistentStore::access_start() { return true; } |
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bool PersistentStore::access_finish() { return true; } |
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bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) { |
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while (size--) { |
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uint8_t v = *value; |
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// Save to Backup SRAM
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*(__IO uint8_t *)(BKPSRAM_BASE + (uint8_t * const)pos) = v; |
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crc16(crc, &v, 1); |
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pos++; |
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value++; |
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}; |
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return false; |
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} |
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bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t *crc, const bool writing/*=true*/) { |
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do { |
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// Read from either external EEPROM, program flash or Backup SRAM
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const uint8_t c = ( *(__IO uint8_t *)(BKPSRAM_BASE + ((uint8_t*)pos)) ); |
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if (writing) *value = c; |
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crc16(crc, &c, 1); |
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pos++; |
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value++; |
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} while (--size); |
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return false; |
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} |
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#endif // SRAM_EEPROM_EMULATION
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#endif // ARDUINO_ARCH_STM32 && !STM32GENERIC
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@ -0,0 +1,30 @@ |
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/**
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* Marlin 3D Printer Firmware |
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* |
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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* Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com |
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* Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* |
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*/ |
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#pragma once |
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//
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// EEPROM
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//
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void eeprom_write_byte(uint8_t *pos, unsigned char value); |
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uint8_t eeprom_read_byte(uint8_t *pos); |
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void eeprom_read_block(void *__dst, const void *__src, size_t __n); |
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void eeprom_update_block(const void *__src, void *__dst, size_t __n); |
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