I've recently started using Xpresso to develop an application using TCP connections.
We're using the NGX Xplorer 1830 board (LCP1837 MCU).
I tried the shipped lwIP examples, specifically lwip_freertos_tcpecho. The only modification was the IP configuration for our network.
Unfortunately, the demo behaves very unstable to the point where it is unusable in practice:
* It crashes reproducibly if nmap -sn is run on the network. Apparently the app is not designed to handle these packets, how to add support for this / avoid the crash?
* It randomly crashes during TCP connections, usually after entering 5-10 strings. Closing the connection and establishing a new one after it accelerates the crashes.
Any pointers greatly appreciated!
If commercial support to resolve these issues is available, we'd happily buy it.
KISS Technologies GmbH