Issue data mode, communication beetween wifi module and other device

Ond?ej Dvo?�k · ‎2016-02-04

Posted on February 04, 2016 at 17:03

Hi all,

I have a problem. I use Wifi module in miniAP mode. I started to listen UDP socket in port 18120 and connect one client to this socket and go to data mode. When i send data from client to wifi module and next to MCU everything it is ok. But In most case when i send data from MCU to client over wifi module, data lost. I think this is problem of FW in module. I check uart data in scope and it is ok, MCU send data to wifi module.

Anybody have same issue?

Thanks for help, Ondra

FW version: 141106-0950875-SPWF02S ( i think this is v3.3)

Gerardo GALLUCCI · ‎2016-02-04

Posted on February 04, 2016 at 18:53

I Ondra,

yes, it is FW3.3, 2 years old.

Please, update to FW3.5, and perform test again. Ask for it to your local ST office or distributor.

Consider also that, depending on rate and protocol, data loss can happen over serial (MCU to module) and over the air (UDP is not reliable). Avoid data loss over serial by flow control.

Let me know

j