cangen
manual page for cangen 2018.02.0-1
- Provided by: can-utils (Version: 2018.02.0-1)
- Report a bug
SYNOPSIS
cangen [options] <CAN interface>
DESCRIPTION
cangen - CAN frames generator for testing purposes.
cangen: generate CAN frames
OPTIONS
- -g <ms>
- (gap in milli seconds - default: 200 ms)
- -e
- (generate extended frame mode (EFF) CAN frames)
- -f
- (generate CAN FD CAN frames)
- -b
- (generate CAN FD CAN frames with bitrate switch (BRS))
- -R
- (send RTR frame)
- -m
- (mix -e -f -b -R frames)
- -I <mode>
- (CAN ID generation mode - see below)
- -L <mode>
- (CAN data length code (dlc) generation mode - see below)
- -D <mode>
- (CAN data (payload) generation mode - see below)
- -p <timeout>
- (poll on -ENOBUFS to write frames with <timeout> ms)
- -n <count>
- (terminate after <count> CAN frames - default infinite)
- -i
- (ignore -ENOBUFS return values on write() syscalls)
- -x
- (disable local loopback of generated CAN frames)
- -v
- (increment verbose level for printing sent CAN frames)
Generation modes:
- 'r'
- => random values (default)
- 'i'
- => increment values
- <hexvalue>
- => fix value using <hexvalue>
When incrementing the CAN data the data length code minimum is set to 1. CAN IDs and data content are given and expected in hexadecimal values.
EXAMPLES
cangen vcan0 -g 4 -I 42A -L 1 -D i -v -v
- (fixed CAN ID and length, inc. data)
cangen vcan0 -e -L i -v -v -v
- (generate EFF frames, incr. length)
cangen vcan0 -D 11223344DEADBEEF -L 8
- (fixed CAN data payload and length)
cangen vcan0 -g 0 -i -x
- (full load test ignoring -ENOBUFS)
cangen vcan0 -g 0 -p 10 -x
- (full load test with polling, 10ms timeout)
cangen vcan0
- (my favourite default :)