From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <496B7B34.9030405@domain.hid>
Date: Mon, 12 Jan 2009 18:17:40 +0100
From: Wolfgang Grandegger <wg@domain.hid>
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Subject: Re: [Xenomai-help] [Socketcan-users] rtcanconfig rtcansend rtcanrecv
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To: "Charlton, John" <john.charlton@domain.hid>
Cc: "xenomai@xenomai.org" <xenomai@xenomai.org>, "socketcan-users@domain.hid" <socketcan-users@domain.hid>

Charlton, John wrote:
> Wolfgang,
> 
> Thank you for the help.  I do have XENO_DRIVERS_CAN_DEBUG enabled and the registers are:
> 
> root@domain.hid:~$ cat /proc/rtcan/rtcan1/registers
> SJA1000 registers
> 00: 00 00 0c 02 ff 00 03 1c 1a 00 00 00 00 60 00 00
> 10: 08 00 20 01 02 03 04 05 06 07 08 ff 20 00 00 c8
> root@domain.hid:~$ cat /proc/rtcan/rtcan0/registers
> SJA1000 registers
> 00: 00 00 0d 01 ff 00 03 1c 1a 00 00 00 00 60 00 00
> 10: 08 00 20 01 02 03 04 05 06 07 08 bf 00 01 00 c8
> root@domain.hid:~$

Looks like the data have been received by the rtcan0 chip. Then most
likely there are problems with the interrupts.

> I will focus on the transmitter and try another CAN device or CAN analyzer as you suggest.

I see that the TSCAN1 Lincan driver also writes 0 to offset 4:

  outb(0x0, TSCAN1_BASE_ADDR + idx * 8 + 4);
  outb(0x60 + idx, TSCAN1_BASE_ADDR + idx * 8 + 5); // set base I/O address in
                                                    // control reg

Maybe it already makes a difference?

Wolfgang.