78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/**
|
|
* Marlin 3D Printer Firmware
|
|
* Copyright (c) 2019 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 <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
#pragma once
|
|
|
|
/**
|
|
* Arduino library for MicroChip MCP4728 I2C D/A converter.
|
|
*/
|
|
|
|
#include "../../core/types.h"
|
|
|
|
#include <Wire.h>
|
|
|
|
/**
|
|
* The following three macros are only used in this piece of code related to mcp4728.
|
|
* They are defined in the standard Arduino framework but could be undefined in 32 bits Arduino frameworks.
|
|
* (For instance not defined in Arduino lpc176x framework)
|
|
* So we have to define them if needed.
|
|
*/
|
|
#ifndef word
|
|
#define word(h, l) ((uint8_t) ((h << 8) | l))
|
|
#endif
|
|
|
|
#ifndef lowByte
|
|
#define lowByte(w) ((uint8_t) ((w) & 0xff))
|
|
#endif
|
|
|
|
#ifndef highByte
|
|
#define highByte(w) ((uint8_t) ((w) >> 8))
|
|
#endif
|
|
|
|
#define defaultVDD DAC_STEPPER_MAX //was 5000 but differs with internal Vref
|
|
#define BASE_ADDR 0x60
|
|
#define RESET 0b00000110
|
|
#define WAKE 0b00001001
|
|
#define UPDATE 0b00001000
|
|
#define MULTIWRITE 0b01000000
|
|
#define SINGLEWRITE 0b01011000
|
|
#define SEQWRITE 0b01010000
|
|
#define VREFWRITE 0b10000000
|
|
#define GAINWRITE 0b11000000
|
|
#define POWERDOWNWRITE 0b10100000
|
|
#define GENERALCALL 0b00000000
|
|
#define GAINWRITE 0b11000000
|
|
|
|
// This is taken from the original lib, makes it easy to edit if needed
|
|
// DAC_OR_ADDRESS defined in pins_BOARD.h file
|
|
#define DAC_DEV_ADDRESS (BASE_ADDR | DAC_OR_ADDRESS)
|
|
|
|
void mcp4728_init();
|
|
uint8_t mcp4728_analogWrite(const uint8_t channel, const uint16_t value);
|
|
uint8_t mcp4728_eepromWrite();
|
|
uint8_t mcp4728_setVref_all(const uint8_t value);
|
|
uint8_t mcp4728_setGain_all(const uint8_t value);
|
|
uint16_t mcp4728_getValue(const uint8_t channel);
|
|
uint8_t mcp4728_fastWrite();
|
|
uint8_t mcp4728_simpleCommand(const byte simpleCommand);
|
|
uint8_t mcp4728_getDrvPct(const uint8_t channel);
|
|
void mcp4728_setDrvPct(xyze_uint8_t &pct);
|