Ok thanks for all Wolfang, you are an angel to deal my request with such efficiency.
I am already waiting for an answer from Ixxat. I will check resistors terminaisons I will manage to record something with an analyzer, could you describe what should I look at ? Just messages ? Particular messages like Emergency ? Heartbits ? and I will inform you about this. Is there any chance that rtCan drivers manage this hardware better ? Because we were firstly going to use a xenomai kernel and then turn back into a nature one for planning issues. As we need the can interface to go on, it is possible to change this. 2010/11/15 Wolfgang Grandegger <[email protected]> > On 11/15/2010 08:55 PM, Willy Lambert wrote: > > Arg, I can't read German (at least not Technical German) so I makes > things > > more complicate for me :) > > Well, apart from the OCR setting, this document is not really useful. > > > I am going to read this. It makes me thinking about time quantas as > describe > > in Documentation/networking/can.txt: > > > > 708 <http://www.mjmwired.net/kernel/Documentation/networking/can.txt#708 > > > > "tq 125 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1" > > 709 <http://www.mjmwired.net/kernel/Documentation/networking/can.txt#709> > Shows > > the time quanta in ns, propagation segment, phase buffer > > 710 <http://www.mjmwired.net/kernel/Documentation/networking/can.txt#710> > segment > > 1 and 2 and the synchronisation jump width in units of > > 711 <http://www.mjmwired.net/kernel/Documentation/networking/can.txt#711> > tq. > > They allow to define the CAN bit-timing in a hardware > > 712 <http://www.mjmwired.net/kernel/Documentation/networking/can.txt#712> > independent > > format as proposed by the Bosch CAN 2.0 spec (see > > 713 <http://www.mjmwired.net/kernel/Documentation/networking/can.txt#713> > chapter > > 8 of http://www.semiconductors.bosch.de/pdf/can2spec.pdf). > > > > > > Could I have something to precise after defining baudrate ? > > No. If the chips is mapped correctly, it should work like with any other > SJA1000 hardware. > > To be honest, I'm not even sure if this IXXAT card is supported properly > by the sja1000_isa driver. I still think there is a problem with the irq > setup or the ocr and cdr setting. Or it needs some special treatment. > You could try contacting the IXXAT service. Maybe they can tell you more. > > Also, a CAN analyzer would be useful. > > Wolfgang. >
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