Urs Eichholzer wrote:
> Hi
>
> We are using Linux 2.6.19.2 and Xenomai 2.3.0
Xenomai 2.3.0 is quite old and I recommand to update to 2.3.5., at lreast
> The problem disapeared when we not changed the baudrate (we try to scan the
> bus..). What shoult be the time between changing the baudrate?
Ah, I see. Does the attached patch help?
Wolfgang.
> Thank's
>
> Urs
>
> From: Wolfgang Grandegger [EMAIL PROTECTED]
> Sent: Wednesday, April 09, 2008 12:19 AM
> To: Urs Eichholzer
> Cc: [email protected]
> Subject: Re: [Xenomai-help] CAN Probleme
>
> Hi Urs,
>
> Urs Eichholzer wrote:
>> Hello
>>
>> We are just start to use the setup...
>> We try to read parameters from a device true the CAN. From some
>> parameters we get proper replay and with other parameters we get the
>> following message:
>> rtcan0: btr0=0x05 btr1=0x4f
>> rtcan0: btr0=0x0a btr1=0x6f
>> rtcan_mscan_start_xmit: TX buffer not empty
>
> Hm, this message is pretty fatal. What version of Linux and Xenomai do you
> use?
> What type of parameters do you read when the error message shows up. Can you
> reproduce the problem with a little example program?
>
> Thanks,
>
>
> ----------------------------------------------------------------
> This message was sent using Samart Web Mail 2005.
>
>
Index: rtcan_mscan.c
===================================================================
--- rtcan_mscan.c (revision 3454)
+++ rtcan_mscan.c (working copy)
@@ -358,6 +358,10 @@ static int rtcan_mscan_mode_stop(struct
if (!CAN_STATE_OPERATING(state))
goto out;
+ regs->canrier = 0;
+ if (!(regs->cantflg & MSCAN_TXE0))
+ regs->cantarq = MSCAN_TXE0;
+
/* Switch to sleep mode */
regs->canctl0 |= MSCAN_SLPRQ;
regs->canctl0 |= MSCAN_INITRQ;
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