tcp server with tftp

[Nathaniel Hourt]

On 2025-11-19 17:16, Yonkee, Nathan Paul wrote:
> Hello all, I am writing some custom uboot to run a tcp server to 
> communicate with our lab computer. I would like to be able to do a tftp 
> file transfer while the server is connected, but when I try I get error 
> -13. I wrote a custom tcp server with lwip and I am using tftp_loop() 
> to do the tftp transfer.

TFTP is usually a UDP-based protocol... Are you sure you mean to be 
using TCP with it?

If you're just looking to send a file to your device with u-boot, have 
you looked at the wget command? 
https://docs.u-boot.org/en/latest/usage/cmd/wget.html Or are you trying 
to send a file from u-boot to your lab computer?

—
Nathaniel