Posts by Till

Hello!

I have always problems with the usage of the CAN test application.
I used the strace command to show, how the can_tx application works and got the following output:

# strace ./can_tx
execve("./can_tx", ["./can_tx"], [/* 22 vars */]) = 0
brk(0) = 0x11000
uname({sys="Linux", node="FSiMX6", ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2aac6000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=39765, ...}) = 0
mmap2(NULL, 39765, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2aae4000
close(3) = 0
open("/lib/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0LV\1\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1181044, ...}) = 0
mmap2(NULL, 1217748, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x2abb7000
mprotect(0x2acd4000, 28672, PROT_NONE) = 0
mmap2(0x2acdb000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x11c) = 0x2acdb000
mmap2(0x2acde000, 9428, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2acde000
mprotect(0x7ee94000, 4096, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_GROWSDOWN) = 0
close(3) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2ab5f000
set_tls(0x2ab5f4c0, 0x2ab5fb97, 0x2ab5fb98, 0x2ab5f4c0, 0x2abb6000) = 0
mprotect(0x2acdb000, 8192, PROT_READ) = 0
mprotect(0x2abb5000, 4096, PROT_READ) = 0
munmap(0x2aae4000, 39765) = 0
socket(0x1d /* PF_??? */, SOCK_RAW, 1) = 3
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0} ---
+++ killed by SIGSEGV +++
Segmentation fault

Have everyone an idea, how I can solve the segmentation fault?

With best regards,

Till

Dear f&s team,

I would like to check out the CAN-Bus of the efusA9-Board with the examples bring up with your BSP. So I used "make" to creat the programms and copy them to the board.

I am also used the programms descripted in the REAME-file, but it does'nt work. With the command "ip -details -statistics link show can0" I got the message "can state ERROR-WARNING (berr-counter tx128 rx0) restart-ms 0" after I used can_tx.

Have you some tips for the right use of the testprogramms?

With best regards

Hello,

at first: thanks for your answer! It works fin.
But now, I have another problem. Everytime I connected to the board and I enter my password, I got the following message:

ssh Till@192.168.0.12
Till@192.168.0.12's password:
WARNING: Your password has expired.
You must change your password now and login again!
passwd: must be suid to work properly
Connection to 192.168.0.12 closed.

I'm also changed the userpassword on the board, but it does'nt help.

Thanks for your answer.

Hello f&s-team,

every time i would connect the board with ssh i get the following message:

[ssh: connect to host 192.168.0.12 port 22: Connection refused][/code]

I also create a new user on the board.

with best regards