DM368 "Hello World"

it seems like the target can't be accessible from /home/root/dm368/helloworld. what should I do? Any suggestion?

Are you sure your NFS is working properly? Once you have added some file to your NFS share, you should be able to see it immediately on your target, without the need of restarting.

Thanks for your answer. I just know I can boot from NFS. I don't know how to check whether the NFS is working properly. Could you please give  detailed explanation?

Thanks for your prompt response!

boot from nfs means your rootfs is the NFS share on your host machine. If you are familiar with Samba, it's pretty similar concept.

After your target booted from NFS, on your target, when you list the files, it's actually listing the files of your NFS share. Say your share is /home/user/targetfs, if you run

echo 'test'>/home/user/targetfs/tmp/test

on your host, then you should be able to see the content of this file on your target by typing "cat test".

If it doesn't work, post your /etc/exports

The etc/exports is as blew:

# /etc/exports: the access control list for filesystems which may be exported
#		to NFS clients.  See exports(5).
#
# Example for NFSv2 and NFSv3:
# /srv/homes       hostname1(rw,sync,no_subtree_check) hostname2(ro,sync,no_subtree_check)
#
# Example for NFSv4:
# /srv/nfs4        gss/krb5i(rw,sync,fsid=0,crossmnt,no_subtree_check)
# /srv/nfs4/homes  gss/krb5i(rw,sync,no_subtree_check)
#
/home/zf/dm368/dvsdk/filesystem/dm368rootfs *(rw,nohide,insecure,no_subtree_check,async,no_root_squash)
/home/zf/dm368/targetfs/home/root/dm368 *(rw,nohide,insecure,no_subtree_check,async,no_root_squash)

/home/zf/dm368/dvsdk/filesystem/dm368rootfs This is the u-boot directory

/home/zf/dm368/targetfs/home/root/dm368  This is the directory of helloworld

I see. But what if I create a directory for my own application, can't I add it into the NFS share entry?

Thanks very much for your help.

Of course you could use multiple shares. But usually your application is part of your files system anyway, so it makes more sense to only use one.

Got it. I'm a new beginner! Thanks for your patient.

hi，

    My EVM is TMS320DM368 which is bought from TI.I have changed boot :

setenv nfshost 200.162.162.254

setenv rootpath /root/targetfs                       

setenv bootargs mem=60M console=ttyS0,115200n8 noinitrd rw ip=200.162.162.253:255.255.255.0:200.162.162.100 root=/dev/nfs nfsroot=$(nfshost):$(rootpath)video=davincifb:osd0=720x576x16,4050K dm365_imp.oper_mode=0 davinci_capture.device_type=4

After power the EVM,I cannot see the file folder in Linux. Can you help me???

Thanks in advance....

fanfan

hi,

    I come with the same problem with you.I want the EVM boot from NFS,and I have changed the boot in below:

setenv nfshost 200.162.162.254

setenv rootpath /root/targetfs     :this file folder does not put in DVSDK installing directory.Does it OK?

setenv bootargs mem=60M console=ttyS0,115200n8 noinitrd rw ip=200.162.162.253:255.255.255.0:200.162.162.100 root=/dev/nfs nfsroot=$(nfshost):$(rootpath)video=davincifb:osd0=720x576x16,4050K dm365_imp.oper_mode=0 davinci_capture.device_type=4

saveenv

               In the end,I cannot see the files from Linux by Source CRT in XP windows.

               question: Should I change the boot mode to NAND Flash boot ???