On Fri, Apr 26, 2024 at 09:17:30PM +0200, Bernd Walter wrote: > On Fri, Apr 26, 2024 at 07:58:00PM +0200, Tomek CEDRO wrote: > > Can you please elaborate more on why / how system hangs?
I've found two bugs in my http code related to that. I have had random hangs when doing a ping, however, without a ping the system seems to be stable. Will have to see what happens with a ping. Maybe it was something unrelated - a browser window was still opened and did a retry on a critical webpage or something. The bugs hadn't been in the NuttX code, but since it might trap others as well. 1. I did write into a const struct. The server code has a struct to assign file endings to content type. Something to be assumed const and to save RAM when I converted it from NutOS I added a const in the declaration. However, a 3rd entry is a parser function and I assigned some. On the ARM it was ignored, but not noticed because I never used this content type. 2. strcmp with NULL parameter, which is undefined and worked on ARM, but failed on the ESP32 For dynamic data on a main page I used a GET argument to switch between menu points. An initial request is without this parameter and the function to return the value of that argument returned NULL, which I had put into strcmp to check if a given menu was selected. Next thing will be to find out on how to use the code flash for configdata. It seems there is filesystem support for that. Normaly I would add an 24*16 chip and be done with it, but the ESP32 has so little available GPIO when using ethernet... And then trying to get WiFi running. I do get the following message on the console: ERROR: Failed to initialize wireless subsystem=-12 But I'm sure that's my fault. -- B.Walter <be...@bwct.de> https://www.bwct.de Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.
