I noted when switching to the current v3 SDK: - user_rf_pre_init is NO LONGER called (contrary what is said above). You can set a variable in your function and check it later to see. - user_rf_cal_sector_set is NO LONGER called (contrary what is said above). You can set a variable in your function a...

Or even better: just, public (!) confirmation from Espressif (or adjustments of course).

I am sharing my experiences about this here. I really hope some of the Espressif employees will step in and comment. Otherwise it may serve as starting point for others that have the same question. BTW this is all non-OS SDK. To start with, during the very early boot process, some functions in user ...

Totally understood ;) I already guessed that would be the way to go if nobody could give me this information (either because unknown or because classified (for some stupid reason)). I'd simply allocate some growing array on the stack though, rather than having a function recurse on itself. Issue is ...

If you make any delay long enough, wifi will break anyway. I don't think you should use them, use timers instead.

Hi Pratik, Good to see you're still around here ;) You say this: The DRAM is actually 96kB. With nonOS SDK, the remaining 16kB gets used for ROM code. In RTOS SDK, you have the entire 96kB for data, bss, rodata and heap. Because heap is the flexible one here, it depends on the size of (data+bss+roda...

Hello All, This has been puzzling me more and more lately and I don't seem to find out anything about it (googled it...) According to https://github.com/esp8266/esp8266-wiki/wiki/Memory-Map: 3FFFC000h 4000h RAM ETS system data RAM. 3FFE8000h 14000h RAM RW User data RAM. Available to applications. In...

The link doesn't give much information. Is this an USB-serial converter (like CP2102) and some connectors added?

What ESP's can fit out of the box? I need ESP01 and ESP201.

Has anyone already tried to make an ESP8266 serial programmer using an ESP8266? Something like ESP8266_1 connects to ESP8266_2 using serial, ESP8266_1 pulls up and down the GPIO_0, GPIO_2 and RST lines of ESP8266 and starts sending the new firmware. Most of this is not rocket science, but I am too l...

As said I don't really have a purpose for very fast tcp or udp connections. Even if I'd want to, I have very little iram left, because the Espressif libs take up most of it. I've only about 4k left, from which I use 2k for interrupt handlers and timing critical code. I2C benefits greatly from code i...