con = new WebSocket("ws://10.77.254.113");
) gets acknowledged by the project, but UDP-console says:
~~~
152.561.166 [IP-task ] Gain: Socket 80 now has 4 / 12 children
152.561.201 [IP-task ] prvSocketSetMSS: 1400 bytes for 10.23.8.168:51489
152.561.248 [IP-task ] Socket 80 -> 10.23.8.168:51489 State eCLOSED->eSYNFIRST
152.561.299 [IP-task ] MSS change 1400 -> 1460
152.561.331 [IP-task ] prvWinScaleFactor: uxRxWinSize 4 MSS 1400 Factor 0
152.561.370 [IP-task ] Socket 80 -> 10.23.8.168:51489 State eSYNFIRST->eSYNRECEIVED
152.561.632 [IP-task ] TCP: passive 80 => 10.23.8.168:51489 set ESTAB (scaling 1)
152.561.680 [IP-task ] Socket 80 -> 10.23.8.168:51489 State eSYNRECEIVED->eESTABLISHED
152.561.856 [SvrWork ] TPC-server: new HTTP client
152.563.059 [SvrWork ] Open file ‘/websrc/’: Is a directory
~~~
Whats the point? I dont get it..
Thanks for help,
Jens
Websockets FreeRTOS V9.0.0 STM32F4
Hi all,
trying to add websockets to my project.
For a first test, I adapted the delivered freeRTOS DEMO 9.0.0 for STM32 discovery to my own f427 project.
TCP/IP works fine, I have access to my web- anf ftpserver, can read files from SD card etc, nut I am missing a websocket communication between the hardware and the ui.
Initialising a websocket via firefox console (
Websockets FreeRTOS V9.0.0 STM32F4
Hi Jens, what you see in the logging is that a TCP connection gets established. And then… you’re supposed to exchange data.
I know the principles of a websocket, but I haven’t used them my self.
The above socket on port 80 is created by your HTTP server, but it won’t do much: it can only respond to a GET command.
The last logging line:
~~~
Open file ‘/websrc/’: Is a directory
~~~
says that
/websrc/
can not be opened as a file.
If your embedded device becomes a regular HTTP server, you can do a lot of interactive things. I often use web pages with JQuery and communicate by exchanging JSON expressions.
Websockets have the advantage of being full-duplex: the web-server can send a message at any moment in time, without a request for data.
Does you release of +TCP already have support for ipconfigHTTP_HAS_HANDLE_REQUEST_HOOK
?
That feature is useful if you want to exchange JSON expressions.