That's certainly interesting (and makes more sense than what the TRM states), but where are you getting those values from?

In the ESP32 TRM (page 70) there is the description for the IO_MUX_PIN_CTRL register. It clearly has something to do with routing the I2S clock signals to CLK_OUT1, CLK_OUT2, and CLK_OUT3special functions via the io mux. 1st, I'm not sure what the point of this register is. Since the I2S signals all...

I'd like to interface the ESP32 with an lcd that runs at slightly lower voltages. The LCD has a recommended voltage of 2.8V with an upper limit of 3.3V.

From the esp32 datasheet it seems that going under 3.0V has issues with the flash. Would a voltage of say 3.1V or 3.2V be sufficient and stable?

I have an esp8266 that's been running for 4y straight now, no issues. I don't think it's the chip failing. Much more likely you're doing something incorrect.

Soon there will be tiny low power SoCs that may replace many MCUs unless prices drop

Which ones are you referring to?

That's interesting to know. I never really played with asm on vanilla since there was no official docs.

Any info on what type of vector instructions on esp32-s3? Perhaps a technical reference manual running around?

Esp32 - S3 supports register windowing!! That has potential for substantial performance gains. Just curious if GCC supports it?

edit: It seems it does https://gcc.gnu.org/onlinedocs/gcc/Xtensa-Options.html

Thanks for the reply.

So, you guys can now release official documentation for the full Xtensa LX7 ISA? That would be wonderful!!

Also, documentation on what is in the ROM, and Wifi, so we don't have to use RTOS/LWip if we choose not to!!

With ESP32-S3 supporting vector instructions (this sounds cool), is there any chance of getting official ISA/ASM and ROM documentation so we can actually utilize these new capabilities?