Hi, we have problem with connection stability with modules based on w5500. Tested many modules, the same problem occurs.
- the device is very sensitive to any EMI ESD
will loose settings after relay or something else make noise. Then needs reset.
Questions are -
it is possible set or burn permanent static address to the chip? (when chip resets self will still have the needed address not 0.0.0.0). Can not be used DHCP because of long lease period.
We can check for this data loss problem in code and after any similar failure occurs, we
reset and set up the chip again. This can happen often or after longer period of time.
How this can affect the lifespan of the module? Doesn’t matter how often the chip is reset?
How this behavior can affect the switch or router?
The problem with EMI is similar to W5500 Down/Lose Connection after some hours/days
- the device freezes after some time. Sometime is minutes and sometimes are hours.
This behavior describe many people on web, but I didnt found any solution.
My solution is, every 5 minutes reset chip by code and then the system works without freezing problem. This overwight to my first question about lifespan of module when continously is resetted.
We need to use the w850io modules because its dimensions.
Is original wiznet not the chinese clone. We will shield against EMI the cables and module as well, this maybe helps a bit.
All this occures in any shield or module we have with 5100 or 5500 chips. Only ethernet 2 module (green) from arduino does not reset by EMI. ( you can give him as close as possible to Relays and nothing, well made, but is big). But also hangs up after some undefined time of running code.
Thank you for any help.