NAME¶

sigrok-cli - Command-line client for the sigrok logic analyzer software

SYNOPSIS¶

sigrok-cli [-hVlDdiIoOptwas] [-h|--help] [-V|--version] [ -l|--loglevel level] [-D|--list-devices] [-d|--device device] [-i| --input-file filename] [-I|--input-format format] [ -o|--output-file filename] [-O|--output-format format] [ -p|--probes probelist] [ -t|--triggers triggerlist] [-w|--wait-trigger] [ -a|--protocol-decoders list] [ -s|--protocol-decoder-stack stack] [--time ms] [--samples numsamples] [ --continuous]

DESCRIPTION¶

sigrok-cli is a cross-platform command line utility for the sigrok logic analyzer software. The command-line frontend for sigrok cannot display graphical output, but is still sufficient to run through the whole process of hardware initialization, acquisition, protocol 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 hardware drivers, input file formats, output file formats, and protocol decoders.

-l, --loglevel <level>

Set the libsigrok and libsigrokdecode loglevel. At the moment sigrok-cli doesn't support setting the two loglevels independently. The higher the number, the more debug output will be printed. Valid loglevels are 0 (NONE), 1 (ERR), 2 (WARN), 3 (INFO), 4 (DBG), and 5 (SPEW).

-D, --list-devices

List all logic analyzer devices found on the system. This actively scans for devices (USB, serial port, and others).

-d, --device <device>

The device to use for acquisition. It can be specified by ID as reported by --list-devices, or by the name of the driver as reported by --version.

 

A device can optionally be followed by a colon-separated list of device options, where each option takes the form key=value. For example, to set the samplerate on the first device you might specify

 

$ sigrok-cli -d 0:samplerate=1m

 

Samplerate is an option common to most devices. The argument specifies the samplerate in Hz. You can also specify the samplerate in kHz, MHz or GHz. The following are all equivalent:

 

$ sigrok-cli --samples 100 -d 0:samplerate=1000000

 

$ sigrok-cli --samples 100 -d 0:samplerate=1m

 

$ sigrok-cli --samples 100 -d "0: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.

-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 format. 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, and csv.

 

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:

 

1:ffff ffff ffff ffff ffff ffff ffff ffff
2:ff00 ff00 ff00 ff00 ff00 ff00 ff00 ff00

 

The lines always start with the probe number (or name, if defined), followed by a colon. If no format is specified, it defaults to bits:width=64, like this:

 

1:11111111 11111111 11111111 11111111 [...]
2:11111111 00000000 11111111 00000000 [...]

-p, --probes <probelist>

A comma-separated list of probes to be used in the session.

 

The default is to use all the probes available on a device. You can name a probe like this: 1=CLK. A range of probes can also be given, in the form 1-5.

 

Example:

 

$ sigrok-cli --samples 100 --probes 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,1=MISO will set the name of probe 1 to MISO.

 

Also, while 5=MOSI,6=MISO will only select probes 5 and 6, and set their names to MISO and MOSI, the command line 5=MOSI,6=MISO,1-8 will select probes 1-8 (including 5 and 6, of course), but the names specified for probes 5 and 6 will be reset to the defaults by the 1-8 probe selection.

-t, --triggers <triggerlist>

A comma-separated list of triggers to use, of the form <probe>=<trigger>. You can use the name or number of the probe, 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 -d <device> argument (with no other arguments) to see which triggers your device supports.

-w, --wait-trigger

Don't output any sample data (even if it's actually received from the logic analyzer) 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 logic analyzer hardware delivers this data to sigrok nonetheless).

-a, --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> -a i2c

 

Each protocol decoder can optionally be followed by a colon-separated list of options, where each option takes the form key=value.

 

Example:

 

$ sigrok-cli -i <file.sr> -a uart:baudrate=115200:parity=odd

 

The list of supported options depends entirely on the protocol decoder. Every protocol decoder has different options it supports.

 

Any "options" specified for a protocol decoder which are not actually supported options, will be interpreted as being probe name/number assignments.

 

Example:

 

$ sigrok-cli -i <file.sr>

 

-a spi:wordsize=9:miso=1:mosi=5:sck=3:cs=0

 

In this example, wordsize is an option supported by the spi protocol decoder. Additionally, the user tells sigrok to decode the SPI protocol using probe 1 as MISO signal for SPI, probe 5 as MOSI, probe 3 as SCK, and probe 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.

 

The decoders are specified by their ID, as shown in the --version 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 -a parameter.

 

Example:

 

$ sigrok-cli -i <file.sr> -a 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 probe name/number assignments must be given using the -a option (you cannot specify them in the -s option).

--time <ms>

Sample for <ms> milliseconds, then quit. You can optionally follow the number by s to state the number of seconds to sample instead. For example, --time 2s will sample for two seconds.

--samples <numsamples>

Acquire <numsamples> samples, then quit.

--continuous

Sample continuously until stopped. Not all devices support this.

EXAMPLES¶

In order to get exactly 100 samples from the (only) detected logic analyzer hardware, run the following command:

sigrok-cli --samples 100

If you want to sample data for 3 seconds, use:

sigrok-cli --time 3000

Alternatively, you can also use:

sigrok-cli --time 3s

To capture data from 4 probes lasting 100ms at 10 MHz starting at the trigger condition 1:high, 2:rising, 3:low, 4:high, use:

sigrok-cli -d 0:samplerate=10m -O bits -p 1-4 --time 100 \

--wait-trigger --triggers 1=1,2=r,3=0,4=1

EXIT STATUS¶

sigrok-cli exits with 0 on success, 1 on most failures.

SEE ALSO¶

sigrok-qt(1), sigrok-gtk(1)

BUGS¶

Please report any bugs 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).