Posted on July 01, 2016 at 11:38Working with the SPWF01SA.11 module. In an attempt to make my program event based, I was trying to utilize the indications for reading data received from a socket. But I am not getting the +WIND:55 indication although data is received:
1. Open a socket to a MQTT server (test.mosquitto.org) -> OK
2. Send a MQTT CONNECT packet -> OK
3. Wait for +WIND:55:Pending Data
10 seconds goes by with nothing at all received from the WiFi module
4. Close the socket -> ERROR: Pending data
5. Query pending data -> DATALEN: 4
6. Read four bytes -> Get exactly the response I was waiting for.
Same as a communication log:
AT+S.SOCKON=test.mosquitto.org,1883,t
ID: 00
OK
AT+S.SOCKW=01,36
Send 36 bytes of socket data.
OK
AT+S.SOCKC=00
ERROR: Pending data
AT+S.SOCKQ=00
DATALEN: 4
OK
AT+S.SOCKR=00,4
Read 4 bytes of socket data
OK
Why am I not getting the indication? None of the indications is disabled.
The version date of the module was 150410, and since the ST website has a newer version 160129, I decided to update. The batch file in the update packet - after inputting the .bin file path and the serial port number - takes about an eyeblink to run to 'Press a key to exit...'. It gives no error messages, but obviously does not update the firmware either.
It does print a web address which lead me to Sourceforge stm32flash page. I downloaded that program and ran it instead of 1203flash.exe used by the batch file. I used exactly the same command line arguments, and this time the binary file was programmed to the module. Only, now the module is dead. How do I recover it?
The new version would be useful also because it supports error numbering in the ERROR response. Parsing the error code form the description string is unnecessarily tedious.
