system_phy_freq_trace_enable()

[st0ff3r]

Hi, can any of you enlighten me of the meaning of sdk function system_phy_freq_trace_enable()?

[Her Mary]

Maybe you can refer to the API Reference Guide.
It says

For the high-temperature scenario, user can call system_phy_freq_trace_enable(1) in user_rf_pre_init to enable frequency offset trace function.

[st0ff3r]

Why is it not turned on by default? Could it in any way be related to this problem: https://tech.scargill.net/esp8266-and-l ... nection-2/

Does the option make the chip try to stay on the right frequency or does it just log deviation?

[blubb]

Documentation is very poor on this api.

If it is improved, I'd also like to know what the numbers mean. If enabled, new stuff like this is logged:

f r0, scandone
sta scan trace -19
reconnect
f r-19, scandone