iMX28 CAN condition control

tionpro28 — Wed, 06 Nov 2013 12:20:56 GMT

Hi, all!

I code the program for a board on the basis of the Freescale iMX287 processor. The Linux operating system is used with version 2.6.35 kernel.

I use SocketCAN library for work with the CAN module. I connect my board to another CAN device (USB PCAN) and successfully I can send and receive data. But I can't trace a state of the CAN bus.

When I break off the bus, or change baud rate of USB PCAN, I don't receive any error messages. I’ tried the following commands to evaluate the state of the CAN module:

~$ cat /proc/net/can/rcvlist_all

receive list 'rx_all':

(any: no entry)

device can_id can_mask function userdata matches ident

can0 000 00000000 c038cbf8 c7d59c00 10 raw

(can1: no entry)

~$ cat /proc/net/can/rcvlist_err

receive list 'rx_err':

(any: no entry)

device can_id can_mask function userdata matches ident

can0 000 00000041 c038cbf8 c7d59c00 0 raw

(can1: no entry)

The command ip shows the following:

~$ ip -stat link show can0

2: can0: <NOARP,UP,10000> mtu 16 qdisc pfifo_fast qlen 64

link/[280]

RX: bytes packets errors dropped overrun mcast

0 0 0 0 0 0

TX: bytes packets errors dropped carrier collsns

20 10 0 0 0 0

Can you please tell what the problem is in?

Re: iMX28 CAN condition control

alejandrolozan1 — Thu, 14 Nov 2013 17:18:36 GMT

Hi,

If you check the state of the module by cat /sys/devices/platform/FlexCAN.x/state

Which state does it appear?

Let me try to reproduce the problem. I will see what the problem might be.

Best Regards,

Alejandro

topic Re: iMX28 CAN condition control in i.MX Processors

iMX28 CAN condition control

Re: iMX28 CAN condition control