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