esp32 Thing default baudrate

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ddewaele
Posts: 2
Joined: Sat Nov 16, 2013 3:47 am

esp32 Thing default baudrate

Post by ddewaele » Wed Aug 30, 2017 2:29 pm

Hi,

I have a Sparkfun ESP32 Thing board, and noticed that while running the ESP-IDF samples that the default baudrate of the board seems to be 74880 instead of 115200.
I was under the impression that while the ESP8266 had 74880 as default, that the ESP32 should have a default baudrate of 115200.

Any idea why mine is set to 74880 ?

ddewaele
Posts: 2
Joined: Sat Nov 16, 2013 3:47 am

Re: esp32 Thing default baudrate

Post by ddewaele » Sun Sep 03, 2017 12:11 pm

Seems this "issue" was caused by my esp-idf toolchain using a wrong crystal frequency (it used 40Mhz instead of the 26Mhz crystal frequency on the Sparkfun board).
As a result, the serial output was also off.

After auto-detecting the crystal frequency, the serial output was again available at 115200bps

rabarar
Posts: 1
Joined: Mon Jan 21, 2019 5:15 pm

Re: esp32 Thing default baudrate

Post by rabarar » Mon Jan 21, 2019 5:18 pm

can you tell me how you selected the auto-detection for the Frequency to correct the baud rate issue on the ESP32 IDF toolchain?

Thanks!

- Rob

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