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