Ethernet issues after 1 - 2 hours

SITCore Modules & Chipsets
1

I have a couple of boards using ENC28J60 with SC20260E and N modules.

  • Initially it works ok, but sometimes after 1 - 4 hours it does not respond to the application running on my PC. If I restart the board it start working again. There are no exceptions.
2

I tried to reset using the below every 30 minutes but it did not change anything.
I was expecting it would be like unplugging and plugging it back the network cable

networkController.Disable();
Thread.Sleep(10 * 1000);
networkController.Enable();

There is a networkaddress change event generated but still there is no response to the app on the PC.
The var address = ipProperties.Address.GetAddressBytes(); has the correct static IP address, I also tried DHCP. Is there something I am missing?

3

I am desperate so tried to restart the board using the below every 30 minutes

GHIElectronics.TinyCLR.Native.Power.Reset();

but it does not reset the board

4

What makes you think it is the Ethernet interface with the problem and not your program?

5

There is an LCD screen that is updating the temperature and I can step through the code using the debugger, while the Ethernet socket just sits there

6

Can the device be pinged?

7

I remember there is a known issue with ENC28J60 chip, it will stop working if getting hot.

Second

GHIElectronics.TinyCLR.Native.Power.Reset();

We will check but I don’t see why it not work.

8

What is the solution for the stop working when hot issue, is it the way the ENC28J60 is initialized. Do you have a way to detect this condition and may be I can reset the board using that

9

We have done extensive testing and research with the ENC28J60 chip but ultimately switched to a built in network with a DP83848 PHY instead.

You can find some of our research and tests here:

10

no response to ping

11

I put a hack fix by sending a message from another board every minute and if I do not receive the packet reset the board. It seems to do the job for now.

Not sure why I am not able to send to my own IP, then I do need to depend on another board. Any ideas would be appreciated