how to execute c programe in OMAPL138 LCDK

i successfully complies the Hello programe and binary file is create on that folder now i want to copy the binary file to the LCDk through ethernet i connected the cable to my pc to LCDK after that i got

root@omapl138-lcdk:~# PHY: 0:07 - Link is Up - 100/Full
root@omapl138-lcdk:~# ls

i executed ifconfig i got

root@omapl138-lcdk:~# ifconfig
eth0 Link encap:Ethernet HWaddr 7A:8C:18:A1:FE:72
inet6 addr: fe80::788c:18ff:fea1:fe72/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:96 errors:0 dropped:0 overruns:0 frame:0
TX packets:87 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:33120 (32.3 KiB) TX bytes:48258 (47.1 KiB)
Interrupt:33

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

root@omapl138-lcdk:~#

so igot the ip address as this  127.0.0.1 marked above

for sending the binary file to the kit i run this command on host PC

scp hello root@<LCDK IP address>:/home/root/

which is like 

[linux-devkit]:/home/vivek/Desktop/ti-sdk-omapl138-lcdk-01.00.00> scp Hello root@127.0.0.1:/home/root/
ssh: connect to host 127.0.0.1 port 22: Connection refused
lost connection
[linux-devkit]:/home/vivek/Desktop/ti-sdk-omapl138-lcdk-01.00.00>

i cant able to send the file through the ethernet

PLZ help 

Hi,

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0

This is a loop back interface and not actual IP.

1) Connect ethernet cable between your PC to target board.

target# ifconfig eth0 10.100.1.1 up

host-linux-PC$ sudo  ifconfig eth0 10.100.1.2 up

2) Now, Test ethernet connection between two devices through  pinging.

3) target# ping 10.100.1.2 (pinging PC IP addr)

4) host-linux-PC$ ping 10.100.1.1 (pinging target board IP addr)

5) If it works & pinging successfully then exchange files between devices through scp

it connects for some seconds not more than 10 sec and then automatically getting disconnected and gain i give command sudo  ifconfig eth0 10.100.1.2 up it again connects and disconnects automatically

it happens from both the sides it automatically disconnects.

root@omapl138-lcdk:/# ifconfig eth0 10.100.1.1 up
root@omapl138-lcdk:/# ping 10.100.1.2
PING 10.100.1.2 (10.100.1.2): 56 data bytes
64 bytes from 10.100.1.2: seq=0 ttl=64 time=3.242 ms
64 bytes from 10.100.1.2: seq=1 ttl=64 time=0.606 ms
64 bytes from 10.100.1.2: seq=2 ttl=64 time=0.719 ms
64 bytes from 10.100.1.2: seq=3 ttl=64 time=0.741 ms
64 bytes from 10.100.1.2: seq=4 ttl=64 time=0.667 ms
64 bytes from 10.100.1.2: seq=5 ttl=64 time=0.724 ms
64 bytes from 10.100.1.2: seq=6 ttl=64 time=0.725 ms
64 bytes from 10.100.1.2: seq=7 ttl=64 time=0.736 ms
64 bytes from 10.100.1.2: seq=8 ttl=64 time=0.631 ms
64 bytes from 10.100.1.2: seq=9 ttl=64 time=0.758 ms
64 bytes from 10.100.1.2: seq=10 ttl=64 time=0.719 ms
64 bytes from 10.100.1.2: seq=11 ttl=64 time=0.728 ms
64 bytes from 10.100.1.2: seq=12 ttl=64 time=0.733 ms
64 bytes from 10.100.1.2: seq=13 ttl=64 time=0.553 ms
64 bytes from 10.100.1.2: seq=14 ttl=64 time=0.632 ms
64 bytes from 10.100.1.2: seq=15 ttl=64 time=0.582 ms
64 bytes from 10.100.1.2: seq=16 ttl=64 time=0.634 ms
64 bytes from 10.100.1.2: seq=17 ttl=64 time=0.628 ms

--- 10.100.1.2 ping statistics ---
33 packets transmitted, 18 packets received, 45% packet loss
round-trip min/avg/max = 0.553/0.819/3.242 ms

i cant able to transfer file

Hi,

Are you in LAN connection (campus or college) or open IP connection through data card or some thing?

If it so, You can't

If you are connected to the LAN network,

Connect your PC to your LAN and connect your target board to LAN through different ethernet cable,

then run the "dhcpc" command on OMAPL138 LCDK board after that you will get IP address for your board through DHCP protocol.

i hv tried in LAN connection as u have posted but dhcpc command is not working on LCDK so i tried to know ip address through ifconfig i got

root@omapl138-lcdk:/# dhcpc
-sh: dhcpc: not found
root@omapl138-lcdk:/# ifconfig
eth0 Link encap:Ethernet HWaddr F2:9C:85:08:54:91 
inet addr:192.168.1.171 Bcast:0.0.0.0 Mask:255.255.255.0
inet6 addr: fe80::f09c:85ff:fe08:5491/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:15094 errors:0 dropped:57 overruns:0 frame:0
TX packets:414 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000 
RX bytes:1418508 (1.3 MiB) TX bytes:84591 (82.6 KiB)
Interrupt:33

lo Link encap:Local Loopback 
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:57 errors:0 dropped:0 overruns:0 frame:0
TX packets:57 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0 
RX bytes:6384 (6.2 KiB) TX bytes:6384 (6.2 KiB)

root@omapl138-lcdk:/#

i got the ip address as 192.168.1.171

i pinged the ip adrress of my PC it pings which is

root@omapl138-lcdk:/# ping 192.168.1.126
PING 192.168.1.126 (192.168.1.126): 56 data bytes
64 bytes from 192.168.1.126: seq=0 ttl=64 time=0.882 ms
64 bytes from 192.168.1.126: seq=3 ttl=64 time=0.733 ms
64 bytes from 192.168.1.126: seq=4 ttl=64 time=0.731 ms
64 bytes from 192.168.1.126: seq=5 ttl=64 time=0.706 ms
64 bytes from 192.168.1.126: seq=6 ttl=64 time=0.653 ms
64 bytes from 192.168.1.126: seq=7 ttl=64 time=0.735 ms
64 bytes from 192.168.1.126: seq=9 ttl=64 time=0.739 ms
64 bytes from 192.168.1.126: seq=10 ttl=64 time=0.740 ms
64 bytes from 192.168.1.126: seq=11 ttl=64 time=0.704 ms
64 bytes from 192.168.1.126: seq=13 ttl=64 time=0.725 ms
64 bytes from 192.168.1.126: seq=14 ttl=64 time=0.852 ms
64 bytes from 192.168.1.126: seq=15 ttl=64 time=0.728 ms
64 bytes from 192.168.1.126: seq=16 ttl=64 time=0.759 ms
64 bytes from 192.168.1.126: seq=21 ttl=64 time=0.764 ms
64 bytes from 192.168.1.126: seq=22 ttl=64 time=0.741 ms
64 bytes from 192.168.1.126: seq=23 ttl=64 time=0.723 ms
64 bytes from 192.168.1.126: seq=25 ttl=64 time=0.729 ms
64 bytes from 192.168.1.126: seq=27 ttl=64 time=0.732 ms
64 bytes from 192.168.1.126: seq=28 ttl=64 time=0.746 ms

--- 192.168.1.126 ping statistics ---
30 packets transmitted, 19 packets received, 36% packet loss
round-trip min/avg/max = 0.653/0.743/0.882 ms
root@omapl138-lcdk:/#

i also pinged the LCDK ip from PC which comes

[linux-devkit]:/home/vivek/Desktop/ti-sdk-omapl138-lcdk-01.00.00> ping 192.168.1.171

PING 192.168.1.171 (192.168.1.171) 56(84) bytes of data.
64 bytes from 192.168.1.171: icmp_req=1 ttl=64 time=0.415 ms
64 bytes from 192.168.1.171: icmp_req=2 ttl=64 time=0.399 ms
64 bytes from 192.168.1.171: icmp_req=4 ttl=64 time=0.384 ms
64 bytes from 192.168.1.171: icmp_req=5 ttl=64 time=0.393 ms
64 bytes from 192.168.1.171: icmp_req=7 ttl=64 time=0.420 ms
64 bytes from 192.168.1.171: icmp_req=8 ttl=64 time=0.433 ms
64 bytes from 192.168.1.171: icmp_req=10 ttl=64 time=0.411 ms
64 bytes from 192.168.1.171: icmp_req=11 ttl=64 time=0.402 ms
64 bytes from 192.168.1.171: icmp_req=12 ttl=64 time=0.392 ms
64 bytes from 192.168.1.171: icmp_req=13 ttl=64 time=0.406 ms
64 bytes from 192.168.1.171: icmp_req=14 ttl=64 time=0.374 ms
64 bytes from 192.168.1.171: icmp_req=16 ttl=64 time=0.405 ms
64 bytes from 192.168.1.171: icmp_req=17 ttl=64 time=0.410 ms
64 bytes from 192.168.1.171: icmp_req=19 ttl=64 time=0.450 ms
64 bytes from 192.168.1.171: icmp_req=23 ttl=64 time=0.425 ms
64 bytes from 192.168.1.171: icmp_req=25 ttl=64 time=0.372 ms
64 bytes from 192.168.1.171: icmp_req=26 ttl=64 time=0.388 ms
64 bytes from 192.168.1.171: icmp_req=30 ttl=64 time=0.394 ms
64 bytes from 192.168.1.171: icmp_req=33 ttl=64 time=0.411 ms
64 bytes from 192.168.1.171: icmp_req=34 ttl=64 time=0.385 ms
^C
--- 192.168.1.171 ping statistics ---
34 packets transmitted, 20 received, 41% packet loss, time 32998ms
rtt min/avg/max/mdev = 0.372/0.403/0.450/0.026 ms
[linux-devkit]:/home/vivek/Desktop/ti-sdk-omapl138-lcdk-01.00.00>

when i used scp command to copy it stucks to that only for long and could not copy

[linux-devkit]:/home/vivek/Desktop/ti-sdk-omapl138-lcdk-01.00.00> ls
bin dsp-tools Hello linux-devkit Rules.make
board-support example-applications Hello.c pira setup.sh
docs filesystem host-tools pyramis.cpp
[linux-devkit]:/home/vivek/Desktop/ti-sdk-omapl138-lcdk-01.00.00> scp Hello root@192.168.1.171:/home/root/

Hi,

[linux-devkit]:/home/vivek/Desktop/ti-sdk-omapl138-lcdk-01.00.00> ls
bin dsp-tools Hello linux-devkit Rules.make
board-support example-applications Hello.c pira setup.sh
docs filesystem host-tools pyramis.cpp
[linux-devkit]:/home/vivek/Desktop/ti-sdk-omapl138-lcdk-01.00.00> scp Hello root@192.168.1.171:/home/root/

This command is used wrongly,

scp means "shell copy" that you can only copy/get the file from any PC through LAN but you can't put/send.( thats what your command doing)

I assume that your target IP is 192.168.1.171 and host PC IP is 192.168.1.126

If you want to get the file from PC to target,

target# scp -r vivek@192.168.1.126:/home/vivek/Desktop/Hello /home/root/

If you want to get the file from target to PC,

host-ubuntu# scp -r root@192.168.1.171:/home/root/Hello2 /home/vivek/Desktop/

Please let me know the status.

i done this scp command to get file from host to target.. 

/usr/bin/dbclient: exited: Error connecting: Connection refused.

Hi,

Try to install "sshd" daemon (sudo apt-get install sshd) on host and then try scp command from target.

If issue persists, Create new post for your issue,

thank uuu .... its working

i executed sqlite3 in target.. 

i transferred file through scp... 

Hi,

Sounds good,

Thanks for your update.