sigrok-cli
Revision as of 15:54, 23 November 2014 by Uwe Hermann (talk | contribs)
sigrok-cli is a command-line frontend for sigrok.
It is licensed under the terms of the GNU GPL, version 3 or later.
manpage
SIGROK-CLI(1) General Commands Manual SIGROK-CLI(1)
NAME
sigrok-cli - Command-line client for the sigrok software
SYNOPSIS
sigrok-cli [OPTIONS] [COMMAND]
DESCRIPTION
sigrok-cli is a cross-platform command line utility for the sigrok
software.
It cannot display graphical output, but is still sufficient to run
through the whole process of hardware initialization, acquisition, pro‐
tocol decoding and saving the session.
It is useful for running on remote or embedded systems, netbooks, PDAs,
and for various other use-cases. It can display samples on standard
output or save them in various file formats.
OPTIONS
-h, --help
Show a help text and exit.
-V, --version
Show sigrok-cli version, and information about supported hard‐
ware drivers, input file formats, output file formats, and pro‐
tocol decoders.
-d, --driver <drivername>
A driver must always be selected (unless doing a global scan).
Use the -V option to get a list of available drivers.
Drivers can take options, in the form key=value separated by
colons.
Drivers communicating with hardware via a serial port always
need the port specified as the conn option. For example, to use
the Openbench Logic Sniffer:
$ sigrok-cli --driver=ols:conn=/dev/ttyACM0
Some USB devices don't use a unique VendorID/ProductID combina‐
tion, and thus need that specified as well. This also uses the
conn option, using either VendorID.ProductID or bus.address:
$ sigrok-cli --driver=uni-t-ut61e:conn=1a86.e008
-c, --config <device>
A colon-separated list of device options, where each option
takes the form key=value. For example, to set the samplerate to
1MHz on a device supported by the fx2lafw driver, you might
specify
$ sigrok-cli --driver=fx2lafw --config samplerate=1m
Samplerate is an option common to most logic analyzers. The
argument specifies the samplerate in Hz. You can also specify
the samplerate in kHz, MHz or GHz. The following are all equiv‐
alent:
$ sigrok-cli --driver fx2lafw --config samplerate=1000000
$ sigrok-cli --driver fx2lafw --config samplerate=1m
$ sigrok-cli --driver fx2lafw --config "samplerate=1 MHz"
-i, --input-file <filename>
Load input from a file instead of a hardware device. If the
--input-format option is not supplied, sigrok-cli attempts to
autodetect the file format of the input file.
-I, --input-format <format>
When loading an input file, assume it's in the specified format.
If this option is not supplied (in addition to --input-file),
sigrok-cli attempts to autodetect the file format of the input
file. Use the -V option to see a list of available input for‐
mats.
The format name may optionally be followed by a colon-separated
list of options, where each option takes the form key=value.
-o, --output-file <filename>
Save output to a file instead of writing it to stdout. The
default format used when saving is the sigrok session file for‐
mat. This can be changed with the --output-format option.
-O, --output-format <formatname>
Set the output format to use. Use the -V option to see a list of
available output formats.
The format name may optionally be followed by a colon-separated
list of options, where each option takes the form key=value.
Supported formats currently include bits, hex, ascii, binary,
vcd, ols, gnuplot, chronovu-la8, csv, and analog.
The bits or hex formats, for an ASCII bit or ASCII hexadecimal
display, can take a "width" option, specifying the number of
samples (in bits) to display per line. Thus hex:width=128 will
display 128 bits per line, in hexadecimal:
0:ffff ffff ffff ffff ffff ffff ffff ffff
1:ff00 ff00 ff00 ff00 ff00 ff00 ff00 ff00
The lines always start with the channel number (or name, if
defined), followed by a colon. If no format is specified, it
defaults to bits:width=64, like this:
0:11111111 11111111 11111111 11111111 [...]
1:11111111 00000000 11111111 00000000 [...]
-C, --channels <channellist>
A comma-separated list of channels to be used in the session.
Note that sigrok always names the channels according to how
they're shown on the enclosure of the hardware. If your logic
analyzer numbers the channels 0-15, that's how you must specify
them with this option. An oscilloscope's channels would gener‐
ally be referred to as "CH1", "CH2", and so on. Use the --show
option to see a list of channel names for your device.
The default is to use all the channels available on a device.
You can name a channel like this: 1=CLK. A range of channels
can also be given, in the form 1-5.
Example:
$ sigrok-cli --driver fx2lafw --samples 100
--channels 1=CLK,2-4,7
CLK:11111111 11111111 11111111 11111111 [...]
2:11111111 11111111 11111111 11111111 [...]
3:11111111 11111111 11111111 11111111 [...]
4:11111111 11111111 11111111 11111111 [...]
7:11111111 11111111 11111111 11111111 [...]
The comma-separated list is processed from left to right, i.e.
items farther to the right override previous items. For example
1=CS,CS=MISO will set the name of channel 1 to MISO.
-g, --channel-group <channel group>
Specify the channel group to operate on.
Some devices organize channels into groups, the settings of
which can only be changed as a group. The list of channel
groups, if any, is displayed with the --show command.
-t, --triggers <triggerlist>
A comma-separated list of triggers to use, of the form <chan‐
nel>=<trigger>. You can use the name or number of the channel,
and the trigger itself is a series of characters:
0 or 1: A low or high value on the pin.
r or f: A rising or falling value on the pin. An r effectively
corresponds to 01.
c: Any kind of change on a pin (either a rising or a falling
edge).
Not every device supports all of these trigger types. Use the
--show command to see which triggers your device supports.
-w, --wait-trigger
Don't output any sample data (even if it's actually received
from the hardware) before the trigger condition is met. In other
words, do not output any pre-trigger data. This option is useful
if you don't care about the data that came before the trigger
(but the hardware delivers this data to sigrok nonetheless).
-P, --protocol-decoders <list>
This option allows the user to specify a comma-separated list of
protocol decoders to be used in this session. The decoders are
specified by their ID, as shown in the --version output.
Example:
$ sigrok-cli -i <file.sr> -P i2c
Each protocol decoder can optionally be followed by a colon-sep‐
arated list of options, where each option takes the form
key=value.
Example:
$ sigrok-cli -i <file.sr>
-P uart:baudrate=115200:parity_type=odd
The list of supported options depends entirely on the protocol
decoder. Every protocol decoder has different options it sup‐
ports.
Any "options" specified for a protocol decoder which are not
actually supported options, will be interpreted as being channel
name/number assignments.
Example:
$ sigrok-cli -i <file.sr>
-P spi:wordsize=9:miso=1:mosi=5:clk=3:cs=0
In this example, wordsize is an option supported by the spi pro‐
tocol decoder. Additionally, the user tells sigrok to decode the
SPI protocol using channel 1 as MISO signal for SPI, channel 5
as MOSI, channel 3 as CLK, and channel 0 as CS# signal.
-S, --protocol-decoder-stack <stack>
This option allows the user to specify a protocol decoder stack,
i.e. the way in which one protocol decoder's output gets piped
into another protocol decoder. If not specified, the stack will
be set up in the same order in which the protocol decoders were
given with the --protocol-decoders option.
The decoders are specified by their ID, as shown in the --ver‐
sion output. In addition to the -S option, all protocol decoders
that are used in a stack, must also be specified (together with
their options, if any) using the -P parameter.
Example:
$ sigrok-cli -i <file.sr> -P i2c:sda=4:scl=7,rtc8564
-S i2c,rtc8564
In this example, the -S option specifies that the output of the
i2c decoder is piped into the rtc8564 decoder, i.e., the rtc8564
decoder is stacked on top of the i2c decoder.
The respective protocol decoder options and channel name/number
assignments must be given using the -P option (you cannot spec‐
ify them in the -S option).
-A, --protocol-decoder-annotations <annotations>
By default, only the stack's topmost protocol decoder's annota‐
tion output is shown. With this option another decoder's annota‐
tion can be selected for display, by specifying its ID:
$ sigrok-cli -i <file.sr> -P i2c,i2cfilter,edid -A i2c
If a protocol decoder has multiple annotations, you can also
specify which one of them to show by specifying its short
description like this:
$ sigrok-cli -i <file.sr> -P i2c,i2cfilter,edid
-A i2c=data-read
Select multiple annotations by separating them with a colon:
$ sigrok-cli -i <file.sr> -P i2c,i2cfilter,edid
-A i2c=data-read:data-write
You can also select multiple protocol decoders, with an optional
selected annotation each, by separating them with commas:
$ sigrok-cli -i <file.sr> -P i2c,i2cfilter,edid
-A i2c=data-read:data-write,edid
-M, --protocol-decoder-meta <pdname>
When given, show protocol decoder meta output instead of annota‐
tions. The argument is the name of the decoder whose meta out‐
put to show.
$ sigrok-cli -i <file.sr> -M i2c
Not every decoder generates meta output.
-B, --protocol-decoder-binary <binaryspec>
When given, decoder "raw" data of various kinds is written to
stdout instead of annotations (this could be raw binary UART/SPI
bytes, or WAV files, PCAP files, PNG files, or anything else;
this is entirely dependent on the decoder and what kinds of
binary output make sense for that decoder).
No other information is printed to stdout, so this is suitable
for piping into other programs or saving to a file.
Protocol decoders that support binary output publish a list of
binary classes, for example the UART decoder might have "TX" and
"RX". To select TX for output, the argument to this option would
be:
$ sigrok-cli -i <file.sr> -B uart=tx
If only the protocol decoder is specified, without binary class,
all classes are written to stdout:
$ sigrok-cli -i <file.sr> -B uart
(this is only useful in rare cases, generally you would specify
a certain binary class you're interested in)
Not every decoder generates binary output.
-l, --loglevel <level>
Set the libsigrok and libsigrokdecode loglevel. At the moment
sigrok-cli doesn't support setting the two loglevels indepen‐
dently. The higher the number, the more debug output will be
printed. Valid loglevels are:
0 None
1 Error
2 Warnings
3 Informational
4 Debug
5 Spew
--show
Show information about the selected option. For example, to see
options for a connected fx2lafw device:
$ sigrok-cli --driver fx2lafw --show
In order to properly get device options for your hardware, some
drivers might need a serial port specified:
$ sigrok-cli --driver ols:conn=/dev/ttyACM0 --show
To view the documentation for a protocol decoder:
$ sigrok-cli --protocol-decoders i2c --show
--scan Scan for devices that can be detected automatically.
Example:
$ sigrok-cli --scan
The following devices were found:
demo - Demo device with 12 channels: D0 D1 D2 D3 D4 D5 D6 D7 A0
A1 A2 A3
fx2lafw:conn=3.26 - CWAV USBee SX with 8 channels: 0 1 2 3 4 5
6 7
However, not all devices are auto-detectable (e.g. serial port
based ones). For those you'll have to provide a conn option,
see above.
$ sigrok-cli --driver digitek-dt4000zc:conn=/dev/ttyUSB0 --scan
The following devices were found:
Digitek DT4000ZC with 1 channel: P1
--time <ms>
Sample for <ms> milliseconds, then quit.
You can optionally follow the number by s to specify the time to
sample in seconds.
For example, --time 2s will sample for two seconds.
--samples <numsamples>
Acquire <numsamples> samples, then quit.
You can optionally follow the number by k, m, or g to specify
the number of samples in kilosamples, megasamples, or gigasam‐
ples, respectively.
For example, --samples 3m will acquire 3000000 samples.
--frames <numframes>
Acquire <numframes> frames, then quit.
--continuous
Sample continuously until stopped. Not all devices support this.
--set Set one or more variables specified with the --config option,
without doing any acquisition.
EXAMPLES
In order to get exactly 100 samples from the connected fx2lafw-sup‐
ported logic analyzer hardware, run the following command:
sigrok-cli --driver fx2lafw --samples 100
If you want to sample data for 3 seconds (3000 ms), use:
sigrok-cli --driver fx2lafw --time 3000
Alternatively, you can also use:
sigrok-cli --driver fx2lafw --time 3s
To capture data from the first 4 channels using the Openbench Logic
Sniffer lasting 100ms at 10 MHz starting at the trigger condition
0:high, 1:rising, 2:low, 3:high, use:
sigrok-cli --driver ols:conn=/dev/ttyACM0 --config samplerate=10m \
--output-format bits --channels 0-3 --wait-trigger \
--triggers 0=1,1=r,2=0,3=1 --time 100
To turn on internal logging on a Lascar EL-USB series device:
sigrok-cli --driver lascar-el-usb:conn=10c4.0002 \
--config datalog=on --set
EXIT STATUS
sigrok-cli exits with 0 on success, 1 on most failures.
SEE ALSO
pulseview(1)
BUGS
Please report any bugs via Bugzilla (http://sigrok.org/bugzilla) or on
the sigrok-devel mailing list (sigrok-devel@lists.souceforge.net).
LICENSE
sigrok-cli is covered by the GNU General Public License (GPL). Some
portions are licensed under the "GPL v2 or later", some under "GPL v3
or later".
AUTHORS
Please see the individual source code files.
This manual page was written by Uwe Hermann <uwe@hermann-uwe.de>. It
is licensed under the terms of the GNU GPL (version 2 or later).
May 04, 2014 SIGROK-CLI(1)