Difference between revisions of "Programmable signal generator"
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* set: Set the output signal phase. | * set: Set the output signal phase. | ||
* list: Supported phase range as (low, high, step). | * list: Supported phase range as (low, high, step). | ||
=== SR_CONF_DUTY_CYCLE (NEW) === | |||
* double, representing output signal duty cycle (percent) | |||
* get: The current output duty cycle. | |||
* set: Set the output signal duty cycle. | |||
* list: Supported duty cycle range as (low, high, step). | |||
Revision as of 06:49, 6 September 2020
*** 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_PATTERN_MODE
- string, pattern generation mode ("Sine", "Square", "Triangle", "Ramp", "Pulse", "Noise", "Arb")
- get: The current output signal pattern (mode).
- set: Set the output signal pattern (mode).
- list: List of supported modes.
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).
SR_CONF_DUTY_CYCLE (NEW)
- double, representing output signal duty cycle (percent)
- get: The current output duty cycle.
- set: Set the output signal duty cycle.
- list: Supported duty cycle range as (low, high, step).