WIZnet WIZ550io

Hello Guys,
I'm James from WIZnet.
I saw the post which Gordon wrote on our forum site.
Hi Gordon, do you remember me? We have met at the office of APC Hero in Cambridge.

Anyway, let me tell what the difference is between Rev 1.0 and 1.1 of WIZ550io.
There is no difference except those header pin's pitch was changed.
The gap of two header pin rows is too wide to plug in a breadboard and many customers request to make it short a little, so we made the revised one, Rev 1.1.
Except that, there is no change. All parts are same. Schematic is same. But Routing is changed a little because hardware dimension was changed.

I am thinking why WIZ550io didn't work properly.
According to possmann's post, he did try to get IP address from DHCP server because His Synology has the same IP address, 192.168.1.2, which WIZ550io has as the default, right?
But he couldn't get IP address from DHCP server and his command, eth.getIP() returned all 0's.

1. To solve this problem, I need the captured packets with wireshark.exe.
   
2. I guess possmann called eth.getIP() in too short time after reset whole system. If there is no problem in Espruino's DHCP library, I recommend he wait for more time.
   
3. Anyway, if you capture all the packets between WIZ550io and DHCP server, it will help us analyze the reason.
   
   

And for the second issue.
Possman said that he set WIZ550io with fixed IP address, 192.168.1.2 after reset Espruino then it worked well, but it didn't work again after http.get(), Right?

1. As he told before, he already has a system having IP address, 192.168.1.2. So there are two devices, his Sysnology and WIZ550io, within the same network.
   This may make IP conflict.
   
2. Try to eth.setIP() with IP address which is not being used. If he can succeed http.get() command, this is the reason why his WIZ550io didn't work properly after http.get().
   
   

Please try to solve IP conflict first. This is more easy issue.

Let me know your test result.

Thank you.

James.