PROBLEM SOLVED !!!!

Check this link: https://github.com/espressif/ESP8266_NO ... /issues/85

I did a full flash erase, after that, the problem was gone. So I think the problem is in the API (not accessible software for me) Only if my perspective is well approached, of course. For my understanding, is this the correct architecture? --------------- User application --------------- SDK -------...

Just flashed the latest esp_init_data_default.bin but without success.

Is there anyone who can reproduce this problem ?

okay thank.....I will place it directly.

In the user_init. Tried also in the user_rf_pre_init without result. The problem occurs before the user_rf_pre_init. I commented everything out in the user_rf_pre_init, user_init and the init_done. Strange btw is that after this, I got more debug info on my serial line :D ets Jan 8 2013,rst cause:2,...

Yes I also tried that. In fact, that was our original problem. We made a change in the API and now we had full control over the ESP. But still the problem appears with switching the device on. It happens only at startup. Just a fraction of time, after that there is no problem. The time is that short...

I just downloaded the ESP8266_FCC_26m_20170731.bin file, and the result is exactly the same. Directly at power-up and just ones.

Hello everyone, This is my first post at this Forum. Hopefully someone can help/support me with this urgent issue. The problem is that the module shows a lot of unwanted transmissions during start-up, causing the FCC certification to fail. Analyzer_Screenshot_Startup_ESP8266.png As the attachment sh...