Hi all,
To my understanding, there seems to be a bug with the Ethernet with lwIP (enet_lwip) example of controlSUITE (I am using v207 but the issue is present in earlier versions as well). A bus error which is escalated to a hard-fault may happen under heavy network traffic. I noticed the problem when exposing it to a lot of UDP requests from a Windows application I am writing. But anyone should be able to reproduce it, e.g., by downloading UDP Unicorn (https://sourceforge.net/projects/udpunicorn/ as follows:
1) Compile and download the flash-config to the experimenter kit and verify the web-server is up, it may be pinged and so on.
2) Start UDP Unicorn and adjust the IP Address to that of the board and set the delay to zero. Run the "Attack" for a while and then stop, and try to ping the device again. In my case, after a while, it will not answer since it is stuck in the hard-fault handler.
3) I have repeated these steps with the debugger connected and been able to see that a hard fault has happened. Specifically, a "precise data bus error" has occured.
I need to fix this as I have the same problem in a project which a while back used the enet_lwip-example as the starting-point for lwip integration.
Christian L
