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51 lines
1.6 KiB
51 lines
1.6 KiB
/*
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MicroMDAEPiano
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MicroMDAEPiano is a port of the MDA-EPiano sound engine
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(https://sourceforge.net/projects/mda-vst/) for the Teensy-3.5/3.6 with audio shield.
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(c)2019-2020 H. Wirtz <wirtz@parasitstudio.de>
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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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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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// Idea from: https://playground.arduino.cc/Code/EEPROMWriteAnything/
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#include <EEPROM.h>
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#include <Arduino.h> // for type definitions
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uint32_t crc32(uint8_t* calc_start, uint16_t calc_bytes);
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template <class T> int EEPROM_writeAnything(int ee, const T& value)
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{
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uint8_t* p = (uint8_t*)(const void*)&value;
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uint16_t i;
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uint32_t checksum = crc32(p + 4, sizeof(value) - 4);
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*p = checksum;
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for (i = 0; i < sizeof(value); i++)
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EEPROM.update(ee++, *p++);
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return i;
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}
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template <class T> int EEPROM_readAnything(int ee, T& value)
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{
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uint8_t* p = (uint8_t*)(void*)&value;
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unsigned int i;
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for (i = 0; i < sizeof(value); i++)
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*p++ = EEPROM.read(ee++);
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return i;
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}
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