ESP32 Hanging after flashing

rwel59
Posts: 97
Joined: Thu Oct 12, 2017 3:32 pm

ESP32 Hanging after flashing

Postby rwel59 » Wed Nov 01, 2017 9:14 pm

Every couple of times that I flash new code, the esp32 hangs after printing this line to the monitor:
D (208) clk: RTC_SLOW_CLK calibration value: 3289318

I restart and everything is fine again.

chegewara
Posts: 2230
Joined: Wed Jun 14, 2017 9:00 pm

Re: ESP32 Hanging after flashing

Postby chegewara » Thu Nov 02, 2017 6:21 am

Same here, and sometimes is just hanging in middle of flashing. Yes, i have good quality USB cable and there was no issue with esp-idf v2.1.

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kolban
Posts: 1683
Joined: Mon Nov 16, 2015 4:43 pm
Location: Texas, USA

Re: ESP32 Hanging after flashing

Postby kolban » Sat Nov 04, 2017 5:07 am

Just to add my 2 cents. I too have started to see this symptom in a variety of random tests. As stated, a reboot and it starts right up again just fine.
Free book on ESP32 available here: https://leanpub.com/kolban-ESP32

WiFive
Posts: 3529
Joined: Tue Dec 01, 2015 7:35 am

Re: ESP32 Hanging after flashing

Postby WiFive » Sat Nov 04, 2017 7:51 am


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