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Slave node cannot receive the frame
Posted: Mon 29. Jun 2020, 14:24
by aguan.zhang
Hi Marvin,
I have installed the driver successfully on Ubuntu 16.04.
And I use the PCAN-USB Pro FD to setup master node and slave node refer to Quick-Start-Guide .
But I didnot reiceive any data in slave node.
Code: Select all
$ ls /sys/class/plin
pcan-usb_pro_fd-0 plin0 plin1 version
Master Node cmd:
Code: Select all
$ lin start master 9600 /dev/plin0
$ linwrite -i=0x22 -b="1 2 1 2" -c=C -d=P /dev/plin0
$ linwrite -i=0x22 -b="1 2 1 2" -c=C -d=P /dev/plin0
Slave Node cmd:
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$ lin start slave 9600 /dev/plin1
$ lin set id-filter 0xff:0xff:0xff:0xff:0xff:0xff:0xff:0xff /dev/plin1
$ linread /dev/plin1
count timestamp d ID data
^C------------------------------------------------------------------------------User interrupt!
Is there any wrong in my operation? Thanks very much
BRs
Aguan
Re: Slave node cannot receive the frame
Posted: Mon 29. Jun 2020, 14:52
by M.Heidemann
Hello Aguan,
Do you use a real Linux machine or do you run this on a VM?
Best Regards
Marvin
Re: Slave node cannot receive the frame
Posted: Tue 30. Jun 2020, 03:50
by aguan.zhang
Hello Marvin,
I use the real Linux OS.
Code: Select all
$ cat /proc/version
Linux version 4.15.0-106-generic (buildd@lcy01-amd64-019) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12)) #107~16.04.1-Ubuntu SMP Thu Jun 4 15:40:05 UTC 2020
And I'm sure the steps I followed are correct. I doubt the master node didn't send frames successfully.
BRs
Aguan
Re: Slave node cannot receive the frame
Posted: Tue 30. Jun 2020, 08:03
by M.Heidemann
Hello Aguan,
To narrow this issue down:
Does your current LIN-setup work as intended on Windows using PLIN-View?
Best Regards
Marvin
Re: Slave node cannot receive the frame
Posted: Tue 30. Jun 2020, 11:37
by aguan.zhang
Hi Marvin，
It seems works not well too when using PLIN_View Pro on Windows.
Please refer to the attachment.
BRs
Aguan
Re: Slave node cannot receive the frame
Posted: Tue 30. Jun 2020, 11:51
by M.Heidemann
Hello Aguan,
This looks like your do not supply your LIN-Channels with external power,
Please see the user manual for PCAN-USB Pro FD on page 12:
https://www.peak-system.com/produktcd/P ... an_eng.pdf
- LIN_Power_Supply.PNG (42.81 KiB) Viewed 10725 times
Please check if your LIN connections are properly supplied with power.
Best Regards
Marvin
Re: Slave node cannot receive the frame
Posted: Wed 1. Jul 2020, 10:59
by aguan.zhang
Hi Marvin,
I have a question, pin 5 and pin 6 all should be connected to GND or any one is OK?
BRs
Aguan
Re: Slave node cannot receive the frame
Posted: Wed 1. Jul 2020, 11:14
by M.Heidemann
Hello,
On LIN Connection Cable for PC LIN Interfaces we use pin5, but it's really up to you, there is no difference.
https://www.peak-system.com/LIN-Anschlu ... .html?&L=1
Best Regards
Marvin
Re: Slave node cannot receive the frame
Posted: Wed 1. Jul 2020, 11:52
by aguan.zhang
HI Marvin,
But If the PIN 4 connected to a real LIN devices, and PIN 9 connected to a additional supply voltage.
Both the PIN 5 and PIN 6 should be connected to GND? or any one is OK？
Thanks very much.
BRs
Aguan
Re: Slave node cannot receive the frame
Posted: Wed 1. Jul 2020, 11:59
by M.Heidemann
Hello Aguan,
you only need to connect one pin to ground.
Best Regards
Marvin