Search found 4 matches

by vbpieter
Fri Jul 24, 2026 8:24 am
Forum: ESP-IDF
Topic: esptool fails sporadically, idf.py flash required
Replies: 3
Views: 31

Re: esptool fails sporadically, idf.py flash required

We're using USB to flash.
The esptool.py bundled with ESP-IDF 5.5.5 is v4.12.0
by vbpieter
Thu Jul 23, 2026 12:18 pm
Forum: ESP-IDF
Topic: esptool fails sporadically, idf.py flash required
Replies: 3
Views: 31

esptool fails sporadically, idf.py flash required

After flashing ~150 custom ESP32C3 boards, 5 fail to connect using https://github.com/espressif/esptool v5.3.0/v5.3.1
They either: throw 'Possible serial noise or corruption (0x45)', 'Guru Meditation Error (illegal instruction)' or hangs after 'Running stub flasher...'

But flashing with https ...
by vbpieter
Fri Jul 11, 2025 12:36 pm
Forum: ESP-IDF
Topic: Webserver unstable in Access Point mode
Replies: 3
Views: 249

Re: Webserver unstable in Access Point mode


Maybe the signal quality is better between the ESP and the router than directly between the ESP and the client, e.g. if the ESP is sitting closer to the router than to the HTTP client device.


I'm using my phone/pc both as client and router so the signal quality should be the same:
- Access ...
by vbpieter
Wed Jul 09, 2025 1:23 pm
Forum: ESP-IDF
Topic: Webserver unstable in Access Point mode
Replies: 3
Views: 249

Webserver unstable in Access Point mode

I am running a webserver on the ESP32-C3 using `esp_http_server.h`
Everything works perfectly when the ESP32-C3 is configured as a Station, using `example_connect()` from: https://github.com/espressif/esp-idf/blob/v5.4.2/examples/protocols/README.md

However, when switching to Access Point mode ...

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