Re: Strange error with jspy utility

[Oliver Hartkopp <socketcan@hartkopp.net>]

Hi Abdul,

On 18.05.2012 23:50, Abdul Khan wrote:

> I am facing strange error with jspy utility provided with j1939-utils
> package. I am using can-j1939-utils, iproute2 and
> can-j1939-linux-3.3.0-rc6 provided by Kurt.


Are you sure that at least your CAN interfaces are running properly?

> #./dmesg | grep can
> 
> OUTPUT:
> ===================
> [    1.289519] rtc_cmos 00:05: RTC can wake from S4
> [    1.455446] md: Scanned 0 and added 0 devices.
> [    4.561925] can: controller area network core (rev 20090105 abi 8)
> [    4.563889] can: raw protocol (rev 20090105)
> [    4.601750] sja1000_isa sja1000_isa.0: can0: bit-timing not yet defined
> [    4.606770] sja1000_isa sja1000_isa.1: can1: bit-timing not yet defined
> [  598.521246] can: SAE J1939
> ===================


The sja1000 interfaces usually tell you when the are set in dmesg.
This is definitely missing in this grep'ed output.

E.g.

# ip -details link show

Should give something like this:

8: can0: <NOARP,ECHO> mtu 16 qdisc noop state DOWN qlen 10
    link/can
    can state STOPPED (berr-counter tx 0 rx 0) restart-ms 0
    bitrate 500000 sample-point 0.875
    tq 125 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1
    sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1
    clock 8000000
9: can1: <NOARP,ECHO> mtu 16 qdisc noop state DOWN qlen 10
    link/can
    can state STOPPED (berr-counter tx 0 rx 0) restart-ms 0
    bitrate 500000 sample-point 0.812
    tq 125 prop-seg 6 phase-seg1 6 phase-seg2 3 sjw 1
    sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1
    clock 8000000

Regards,
Oliver