Programmable signal generator
*** DRAFT ***
This page documents the config keys are various other info needed to write a libsigrok frontend for controlling programmable signal generators (or arbitrary waveform generators).
TODO
- Some way to cleanly implement frequency counter device in same driver...
Notes
It is common for different signal modes (sine, square, pulse, ...) have different limits.
Config keys
A libsigrok driver for a programmable signal generator implements all or some subset of the following config keys.
SR_CONF_SIGNAL_GENERATOR
Denotes a device that provides programmable signal output via one or more output channels, typically with frequency, amplitude, offset, and phase set via the sigrok driver.
SR_CONF_ENABLED
- boolean
- get: Actual state of output
- set: Turn output on or off
- list: NA
SR_CONF_OUTPUT_FREQUENCY
- double, representing frequency of output signal
- get: The current output frequency.
- set: Set the target output frequency.
- list: Supported frequency range as (low, high, step). NOTE! This can change if channel mode is changed.
SR_CONF_AMPLITUDE
- double, representing output signal amplitude (Vpp)
- get: The current output signal amplitude.
- set: Set the output signal amplitude.
- list: Supported amplitude range as (low, high, step).
SR_CONF_OFFSET
- double, representing output signal DC offset (Vdc)
- get: The current output signal offset.
- set: Set the output signal offset.
- list: Supported offset range as (low, high, step).
SR_CONF_PHASE (NEW)
- double, representing output signal phase (degrees)
- get: The current output signal phase.
- set: Set the output signal phase.
- list: Supported phase range as (low, high, step).