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Add support for Printrboard RevF

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The PrintrBoard Rev F utilizes a mcp4728 DAC to set motor current. Printrbot's implementation utilizes 2 new M-codes to set and write the DAC settings to the DAC EEPROM: `M909` (Read DAC) and `M910` (Write DAC). `M907` is re-used to set value, `M908` for direct control.

The Pins file for the RevF board is included.
This commit is contained in:
Stephanie
2016-03-10 14:33:53 -08:00
committed by Scott Lahteine
parent 7f2375ab46
commit 6843b78f99
7 changed files with 365 additions and 2 deletions
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44
Marlin/dac_mcp4728.h Normal file
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/**
Arduino library for MicroChip MCP4728 I2C D/A converter.
*/
#ifndef mcp4728_h
#define mcp4728_h
#include "Configuration.h"
#include "Configuration_adv.h"
#if ENABLED(DAC_STEPPER_CURRENT)
#include "WProgram.h"
#include "Wire.h"
//#include <Wire.h>
#define defaultVDD 5000
#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 0B0000000
#define GAINWRITE 0B11000000
// This is taken from the original lib, makes it easy to edit if needed
#define DAC_DEV_ADDRESS (BASE_ADDR | 0x00)
void mcp4728_init();
uint8_t mcp4728_analogWrite(uint8_t channel, uint16_t value);
uint8_t mcp4728_eepromWrite();
uint8_t mcp4728_setVref_all(uint8_t value);
uint8_t mcp4728_setGain_all(uint8_t value);
uint16_t mcp4728_getValue(uint8_t channel);
uint8_t mcp4728_fastWrite();
uint8_t mcp4728_simpleCommand(byte simpleCommand);
#endif
#endif