Hi
Am 10.01.2012 11:29, schrieb Oliver Hartkopp:
Hello Sebastian,
On 09.01.2012 23:33, Sebastian Haas wrote:
just in case someone is interested in an easy to way to simulate CAN nodes or
to test ECUs via CAN. I want to inform you that my recently started project
restcan [3] reached a first milestone. Look at [1] to know what restcan is.
The milestone includes the following features:
- support of SocketCANs' RAW channels incl. Rx filters
- support of a rudimentary JSON-based message database format
Do you know the Kayak project from Jan-Niklas Meier?
Kajak is a JAVA based frontend and library, see:
http://kayak.2codeornot2code.org/
http://kayak.2codeornot2code.org/tutorial.html
And on github: https://github.com/dschanoeh/Kayak
That looks quite interesting. The approach is different than mine, as
the logic in restcan is at the server side and the client (not yet
available) is an optional visualization/control component.
It is quite difficult to find active open source projects which are CAN
related. I hope to find some help to implement the visualization for
restcan. Too bad Kayak does the signal processing on its own.
Implementing a restbus functionality in JAVA based on the Kajak library is
very easy - when you are a JAVA developer ;-)
I like your approach to get a restbus simulation in C.
Well the simulation is written in Javascript, which is even easier than
C or Java. I want it to be easy to use. The only dependency is NodeJS
and you can write and run simulation and test cases from commandline
within few minutes.
But checking your JSON description for CAN signals i stumbled about the
'intel' and 'motorola' tags which stand for 'little' and 'big' endian.
Yeah, you are right. I will improve it.
I wonder, if it makes sense for your project to adopt the XML-based KCD
format for CAN signal descriptions:
I had a look at the spec, KCD looks pretty good, I think I will use it
to replace the JSON description.
https://github.com/dschanoeh/Kayak/blob/ee6b459bddd1831ae99c1afcde01f315e4b454b4/Kayak-kcd/src/test/resources/can_definition_sample.kcd
Here is the XML schema definition:
https://github.com/dschanoeh/Kayak/blob/master/Kayak-kcd/src/main/resources/com/github/kayak/canio/kcd/schema/Definition.xsd
Maybe you can build your JSON description with an XSLT process from the well
defined KCD description.
There's also a dbc input converter on the run to create KCDs:
https://github.com/dschanoeh/CANBabel
Thats create, I was afraid I need to implement the converter myself. ;-)
I hope they will extend to parse .sym files from Peak as well.
Do you know about BUSMASTER (https://github.com/rbei-etas/busmaster). If
it weren't Windows (R) only it would be an interesting solution.
Oliver, what must restcan provide to be useable for you in your daily
work? Or what do you expect from such a tool?
Cheers,
Sebastian
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