Arduino library for DAC8560 SPI Digital Analog Convertor (16 bit).

Experimental

The DAC8560 is a SPI based 16 bit DAC with one channel.

This library is not tested yet, so use with care.

• https://github.com/RobTillaart/DAC8550
• https://github.com/RobTillaart/DAC8551
• https://github.com/RobTillaart/DAC8552
• https://github.com/RobTillaart/DAC8554
• https://github.com/RobTillaart/DAC8560
• https://github.com/RobTillaart/MCP_DAC
• https://github.com/RobTillaart/AD5620 (12 bit DAC)
• https://github.com/RobTillaart/AD5680 (18 bit DAC)

#include "DAC8560.h"

• DAC8560(uint8_t select, SPIClassRP2040 * spi = &SPI) Constructor HW SPI RP2040.
• DAC8560(uint8_t select, SPIClass * spi = &SPI) Constructor HW SPI other.
• DAC8560(uint8_t select, uint8_t spiData, uint8_t spiClock) Constructor SW SPI.
• void begin() initializes all pins to default state
• void setValue(uint16_t value) set the value of the channel to 0 - 65535
• uint16_t getValue() returns the last value written.

To be used only if one needs a specific speed.

• void setSPIspeed(uint32_t speed) set SPI transfer rate.
• uint32_t getSPIspeed() returns SPI transfer rate.
• bool usesHWSPI() returns true if HW SPI is used.

See datasheet for details.

• void setPowerDownMode(uint8_t powerDownMode) sets power down mode. 0 - 3.
• uint8_t getPowerDownMode() returns last written mode.

See datasheet 7.3.5 Enable/Disable Internal Reference, P21.

The DAC8560 has an internal reference voltage of 2.5 volt. The internal reference is default enabled. One can use this or use an external reference via Vref pin.

Unknown if the voltage of the internal Vref can be measured on the Vref pin.

• void enableInternalReference() idem.
• void disableInternalReference() idem.

• improve documentation
• keep in sync with DAC8551 if possible.
• test with hardware
  • test basic DAC usage.
  • test internal reference
  • test powerDown

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