If "candump" is called with the option "-e", the error messages are
dumped in human readable format:
# candump -e any,0:0,#FFFFFFFF
...
can0 20000088 [8] 00 00 80 19 00 00 00 00 ERRORFRAME
protocol-violation{{error-on-tx}{acknowledge-slot}}
bus-error
error-counter{tx{128}rx{97}}
...
can0 2000008C [8] 00 08 80 19 00 00 00 00 ERRORFRAME
controller-problem{tx-error-warning}
protocol-violation{{error-on-tx}{acknowledge-slot}}
bus-error
error-counter{tx{128}rx{97}}
"candump" actually calles a library function snprintf_can_error_frame()
to do the formatting. It could be used for other purposes as well.
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
unsigned char asc2nibble(char c);
int hexstring2candata(char *arg, struct can_frame *cf);
(see documentation in lib.h)
As prerequsite to fix the commandline interface of cangen.
- added sprint_* functions for CAN-frame output in lib.c / lib.h
- added comments / cosmetics
candump.c:
- removed support for the output in ASC representation (moved to log2asc.c)
- added option '-l' for logfile creation e.g. 'candump-2007-01-01_164123.log'
- added funtionality to terminate candump by pressing [ENTER] (not only ^C)
- added error frame support
- added color support even when reading from 'any'
- three different color levels (e.g. -c -c -c)
- making use if lib.c
cangen.c:
- CAN frames generator for testing purposes (e.g. on vcanx)
(nice when you're on vacancy at the baltic sea and have no real CAN source :)
log2long.c:
- convert compact CAN frame representation into user readable representation
log2asc.c:
- convert compact CAN frame logfile to ASC logfile for 3rd party CAN tools
Next step: Create a tool to replay candump logfiles.
the command line) that are defined in one concatenated string.
This is a requirement for the comming command line tool 'bcmsend' that allows
to send more than one CAN frame at a time.
Marc Kleine-Budde
Wolfgang Grandegger
Oliver Hartkopp