Dear MicroController,

Thanks a lot for your answer! Reinstalling the driver seems a bad way for me due to it's regularity. I'll try to use regular UART so.

Dear all,

Could you help me to understand an ability of using the regular UART RX and UHCI RX at same time?
Some more information about the task. Now I use regular UART RX and TX to spelling with my PC with some commands and answers. I want to change RX mode from UART to UCHI after sending some ...

Dear all,

Based on ESP32-S3 TDS ("Reset and Clock" section), full restart of the chip with periphery can be made via set RTC_CNTL_SW_SYS_RST bit of RTC_CNTL_RTC_OPTIONS0_REG register by the command REG_WRITE(0x60008000, 1ul<<31).
To find right procedure for other ESP chips see TDS for the chip.

Thanks for the answer! Now it's clearer to me. And another question: I don't quite understand how many registers are in the ESP32-S3. For example, the TDS specifies the number of QRs for 8, but does that mean 8 per core or 8 per chip?

Dear all,

I have some misunderstanding about Xtensa core used in ESP32-S3.
According to Xtensa Instruction Set Architecture the boolean registers, boolean operations and some "TIE" extensions (like FLIX and SIMD) can be presented in some Xtensa LX chips. But as far as I understood, it is options ...

Dear all,

Has appeared any way to reset the I2C? I tried both i2c_driver_delete and i2c_master_bus_reset as well as used the WatchDog timer to reset my ESP32-S3, but all procedures makes I2C unusable until total power off, using RST pin or using idf in flash mode.

You are absolutely right. I mean there is better software algorithm whish was incorporated into esp-idf maybe. As well as, if I'm correct, in the CPU may be hardware RSQRT command which is can be used and also incorporated into esp-idf.

Thanks for your answer!

I mean is there a hardware or software implementation of "Fast inverse square root" algorithm on ESP32?
https://en.wikipedia.org/wiki/Fast_inverse_square_root

Dear all,

Could you help me, is there an RSQRT (single precision) hardware or software function in ESP-IDF? I can't find information about it.