It is regarding the issue we are facing with WIZ100SR. It is as follow.
Many Times we have observed communication break between our PC (server) and controller unit in Running conditions ( Attached system block diagram for reference.). It will not recovered until we switch on – off the power of the WIZ100SR unit. It's occurring frequency is about 5 out of 100 unit and not restricted to any specific unit. On further investigation we found that, many times communication is re-established when WIZ100SR is reset or Micro controller is reset. And also sometimes both resting is not working then we have to do complete power on-off.
We have taken care of micro controller reset using watch dog timer. It is working satisfactory.
As for the WIZ100SR We have doubt that may be it goes into Hang or similar like state and recovering only after reset.
In our current PCB, don’t have facility to reset WIZ100SR using controller (IO pins restrictions). So we are trying to understand situation so that we can avoid it. With regards to this we have further quires.
Earlier we were using EG-SR-7100 with satisfactory results. After it is obsoleted, we changed to WIZ100SR without any modification in hardware or firmware. So are there any modifications which we have to consider regarding migration-to WIZ100SR?
Attaching screen shot for WIZ100SR configuration tool with our set values. Are there any parameter values which can cause above issues?
Also attached RJ45 & WIZ100SR connection diagram. Hope this much of information is sufficient for our analysis. If anything require, please let us know.
WIZNET Query.rar (346 KB)