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4 years, 12 months ago.
mbed-os-example-wifi with Nucleo_L476RG
The Mbed example here:
https://os.mbed.com/teams/mbed-os-examples/code/mbed-os-example-wifi/
Indicates Nucleo_L476RG with ESP8266 connected to pins D8 and D2 (I assume ESP8266 Baud rate is 115200)
I have tried this, setting SSID and Password in all the .json files but get ERROR: No WiFiInterface found.
I know my hardware is working as I have been using the same configuration on other programs.
Also I generally use my own ESP8266 driver at 460800 or 921600 Baud depending on my target board. Is it possible to set an override in one of the .json files like I do for STDIO Baud rate ?
Many thanks
Paul
Edit...
I found this and it is now connecting:
mbed_app.json
{ "config": { "wifi-ssid": { "help": "WiFi SSID", "value": "\"Molino\"" }, "wifi-password": { "help": "WiFi Password", "value": "\"36693557\"" } }, "target_overrides": { "*": { "platform.stdio-convert-newlines": true }, "NUCLEO_L476RG": { "target.network-default-interface-type" : "WIFI", "esp8266.tx" : "D8", "esp8266.rx" : "D2", "esp8266.provide-default" : true, "drivers.uart-serial-rxbuf-size" : 1024, "drivers.uart-serial-txbuf-size" : 1024 } } }
But I still need to override the ESP8266 Baud Rate.
Here's the ESP8266 driver on GitHub
https://github.com/ARMmbed/mbed-os/blob/master/components/wifi/esp8266-driver/ESP8266/ESP8266.cpp
Currently line 36 is showing the default baud rate, 115200, is it possible to override this possibly in the .json file?
1 Answer
4 years, 11 months ago.
You can try changing this line: https://github.com/ARMmbed/mbed-os/blob/master/components/wifi/esp8266-driver/ESP8266/ESP8266.cpp#L36
Thanks, Lin, team Mbed
Hi Lin,
I'm using the online compiler so I can't do this atm, however Desmond has given a solution here:
https://os.mbed.com/questions/86806/How-to-change-ESP8266-default-WiFi-baud-/
That will give what I need on the next mbed update if this change is made.
All 100Mhz + platforms work stable at 921600 and is simple to change the baud rate using the serial pass through that is shown in the firmware upgrade page.
I will accept this answer here as I have the other question that is more relevant now.
Regards
Paul
posted by 23 Aug 2019