system_phy_freq_trace_enable()

st0ff3r
Posts: 3
Joined: Sun Sep 13, 2015 11:52 pm

system_phy_freq_trace_enable()

Postby st0ff3r » Fri Apr 06, 2018 4:20 am

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

Her Majesty
Posts: 319
Joined: Mon Oct 27, 2014 11:09 am

Re: system_phy_freq_trace_enable()

Postby Her Majesty » Sat Apr 07, 2018 5:29 pm

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
Posts: 3
Joined: Sun Sep 13, 2015 11:52 pm

Re: system_phy_freq_trace_enable()

Postby st0ff3r » Sat Apr 07, 2018 7:12 pm

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
Posts: 107
Joined: Mon Jun 22, 2015 5:35 am

Re: system_phy_freq_trace_enable()

Postby blubb » Sun Apr 08, 2018 5:52 pm

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

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