hello,
I am new to this mailing list and haven't used lwIP before. I hope you
can get me some advice for my project.
I ran the httpserver_rawdemo for lwIP on my Zynq SoC. I'd like to
transfer video data from my FPGA to the PC @ 1GbE, point-2-point, single
client, bare metal. I'd also like to send some simple control commands
from PC to SoC on this link.
The source is a video stream but transmitting single images to PC and
storing them would be sufficient. Essentially I want to use it for
verification of the embedded system.
I couldn't find a typically approach to do this, there are probably
several.
I am planning on scripting a server-client transmission entirely on PC
with python to develop my client software. There are many examples
available.
Then I start moving server functionality to SoC, commands are
transmitted in HTTP POST's. From the PC I'll also request the image
transfer this way.
httpserver_raw uses simple instructions in the format POST + "cmd" +
"<instruction_name>". I researched and found out that I can do the same
using my frame buffer instead of a file system.
One thing I could not find out is if I need to take care about packet
sizes or not. Can I send any size in one tcp_send() or do I need to
split it to fit MTU?
Are there existing applications I should use or should I make my own
software?
Also any tipps or advice would be appreciated.
thank you,
Markus
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