[U-Boot] usbtty-upload issue

Hi all,

I working on usb console(usbtty).After a long time i got boot-prompt through usbtty(ttyACM0).But the pblm is if I try to send zImage to the target, it continues for some time, and connection gets lost.

Rest of the all command are working fine.

Not, sure why this is happening. Please, suggest if any Idea.

Thanks & Regards

Arjun