CANGEN

NAME

cangen - manual page for cangen 2020.11.0-1

SYNOPSIS

cangen [options] <CAN interface>

DESCRIPTION

cangen - CAN frames generator.

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))
	-E		(generate CAN FD CAN frames with error state (ESI))
	-R		(send RTR frame)
	-m		(mix -e -f -b -E -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)
	-c		(number of messages to send in burst, default 1)
	-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 :)