Firmware2/Marlin/dac_dac084s085.cpp

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/***************************************************************
*
* External DAC for Alligator Board
*
****************************************************************/
#include "Marlin.h"
#if MB(ALLIGATOR)
#include "stepper.h"
#include "dac_dac084s085.h"
dac084s085::dac084s085() {
return ;
}
void dac084s085::begin() {
uint8_t externalDac_buf[2] = {0x20,0x00};//all off
// All SPI chip-select HIGH
pinMode (DAC0_SYNC, OUTPUT);
digitalWrite( DAC0_SYNC , HIGH );
#if EXTRUDERS > 1
pinMode (DAC1_SYNC, OUTPUT);
digitalWrite( DAC1_SYNC , HIGH );
#endif
digitalWrite( SPI_EEPROM1_CS , HIGH );
digitalWrite( SPI_EEPROM2_CS , HIGH );
digitalWrite( SPI_FLASH_CS , HIGH );
digitalWrite( SS_PIN , HIGH );
spiBegin();
//init onboard DAC
delayMicroseconds(2U);
digitalWrite( DAC0_SYNC , LOW );
delayMicroseconds(2U);
digitalWrite( DAC0_SYNC , HIGH );
delayMicroseconds(2U);
digitalWrite( DAC0_SYNC , LOW );
spiSend(SPI_CHAN_DAC,externalDac_buf , 2);
digitalWrite( DAC0_SYNC , HIGH );
#if EXTRUDERS > 1
//init Piggy DAC
delayMicroseconds(2U);
digitalWrite( DAC1_SYNC , LOW );
delayMicroseconds(2U);
digitalWrite( DAC1_SYNC , HIGH );
delayMicroseconds(2U);
digitalWrite( DAC1_SYNC , LOW );
spiSend(SPI_CHAN_DAC,externalDac_buf , 2);
digitalWrite( DAC1_SYNC , HIGH );
#endif
return;
}
void dac084s085::setValue(uint8_t channel, uint8_t value) {
if(channel >= 7) // max channel (X,Y,Z,E0,E1,E2,E3)
return;
if(value > 255) value = 255;
uint8_t externalDac_buf[2] = {0x10,0x00};
if(channel > 3)
externalDac_buf[0] |= (7 - channel << 6);
else
externalDac_buf[0] |= (3 - channel << 6);
externalDac_buf[0] |= (value>>4);
externalDac_buf[1] |= (value<<4);
// All SPI chip-select HIGH
digitalWrite( DAC0_SYNC , HIGH );
#if EXTRUDERS > 1
digitalWrite( DAC1_SYNC , HIGH );
#endif
digitalWrite( SPI_EEPROM1_CS , HIGH );
digitalWrite( SPI_EEPROM2_CS , HIGH );
digitalWrite( SPI_FLASH_CS , HIGH );
digitalWrite( SS_PIN , HIGH );
if(channel > 3) { // DAC Piggy E1,E2,E3
digitalWrite(DAC1_SYNC , LOW);
delayMicroseconds(2U);
digitalWrite(DAC1_SYNC , HIGH);
delayMicroseconds(2U);
digitalWrite(DAC1_SYNC , LOW);
}
else { // DAC onboard X,Y,Z,E0
digitalWrite(DAC0_SYNC , LOW);
delayMicroseconds(2U);
digitalWrite(DAC0_SYNC , HIGH);
delayMicroseconds(2U);
digitalWrite(DAC0_SYNC , LOW);
}
delayMicroseconds(2U);
spiSend(SPI_CHAN_DAC,externalDac_buf , 2);
return;
}
#endif