NAME

Device::Chip::DAC7571 - chip driver for DAC7571

SYNOPSIS

 use Device::Chip::DAC7571;

 my $chip = Device::Chip::DAC7571->new;
 $chip->mount( Device::Chip::Adapter::...->new )->get;

 # Presuming Vcc = 5V
 $chip->write_dac( 4096 * 1.23 / 5 )->get;
 print "Output is now set to 1.23V\n";

DESCRIPTION

This Device::Chip subclass provides specific communication to a Texas Instruments DAC7571 attached to a computer via an I²C adapter.

The reader is presumed to be familiar with the general operation of this chip; the documentation here will not attempt to explain or define chip-specific concepts or features, only the use of this module to access them.

MOUNT PARAMETERS

addr

The I²C address of the device. Can be specified in decimal, octal or hex with leading 0 or 0x prefixes.

METHODS

The following methods documented with a trailing call to ->get return Future instances.

write_dac

   $chip->write_dac( $dac, $powerdown )->get

Writes a new value for the DAC output and powerdown state.

$powerdown is optional and will default to normal if not provided. Must be one of the following four values

   normal 1k 100k hiZ

AUTHOR

Paul Evans <leonerd@leonerd.org.uk>