ESP32 Forum

Posted: **Fri Sep 22, 2017 2:46 pm**

So I'm having some trouble flashing but I've not tinkered with this in a while so bare with.

$ make flash
Flashing binaries to serial port /dev/COM7 (app at offset 0x10000)...
esptool.py v2.1-beta1
Connecting........_

A fatal error occurred: Timed out waiting for packet header
make: *** [/home/Thomas/esp/esp-idf/components/esptool_py/Makefile.projbuild:53: flash] Error 2

Tried holding the button and released on connect etc but still nothing.
make monitor also just displays "Connecting..." over and over which I wondered if it meant it's stuck in a loop.

Any help would be great!

Posted: **Mon Oct 09, 2017 8:23 am**

if you open the COM port with Putty, idf-monitor or any other serial terminal you can check if your esp32 is in download mode.
When you hold the boot button and power button, then release the power button you should see the following(or something like this).

Code: Select all

ets Jun  8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2))
waiting for download

This means its ready to receive your newly built firmware, close your serial terminal and run "make flash"

ESP32 Forum

Stuck in loop (I think)

Stuck in loop (I think)

Re: Stuck in loop (I think)