Search found 50 matches

by dastoned
Tue Sep 26, 2023 3:13 pm
Forum: ESP-IDF
Topic: Disturbing loss of big packets using USB GSM modem
Replies: 1
Views: 1178

Re: Disturbing loss of big packets using USB GSM modem

It turns out the CMUX protocol implementation is buggy over USB (I seem to recall it working fine over UART). I switched the modem from CMUX mode to plain data mode and the problems disappeared. _modem->set_mode(modem_mode::DATA_MODE) I additionally had to raise the buffer size on the DTE to 2048 B ...
by dastoned
Thu Sep 21, 2023 2:17 pm
Forum: ESP-IDF
Topic: Disturbing loss of big packets using USB GSM modem
Replies: 1
Views: 1178

Disturbing loss of big packets using USB GSM modem

Hi! I am experiencing a packet loss of nearly 50% when transmitting larger packets (e.g 1400B) using a SIM7070G GSM module connected via USB OTG to ESP32S3. Smaller packets (e.g. 1000B) are OK. The terminal is lousy with errors from CDC-ACM and other USB subsystems. The exact same GSM module has a p...
by dastoned
Tue Jan 17, 2023 10:50 am
Forum: Documentation
Topic: Documentation for esp-protocols offline
Replies: 2
Views: 3290

Re: Documentation for esp-protocols offline

Wonderful, thank you!
by dastoned
Wed Jan 11, 2023 3:57 pm
Forum: Documentation
Topic: Documentation for esp-protocols offline
Replies: 2
Views: 3290

Documentation for esp-protocols offline

I'm trying to read the detailed docs on esp-protocols, specifically esp_modem. There are several links to "full HTML documentation" found in https://github.com/espressif/esp-protocols or https://github.com/espressif/esp-protocols/blob/master/components/esp_modem/README.md which point to this address...
by dastoned
Wed Jul 14, 2021 9:31 am
Forum: ESP-IDF
Topic: NVS doesn't support in-place encryption of a partition with data on it?
Replies: 0
Views: 1466

NVS doesn't support in-place encryption of a partition with data on it?

Hi! I have to set up each ESP32 with some unique NVS data during manufacturing (serial number, private keys, etc). Flash and NVS encryption are enabled. I quite love the Flash encryption feature where the key gets generated in device and the marked partitions are encrypted in-place. I don't have to ...
by dastoned
Mon Jul 12, 2021 8:50 am
Forum: ESP-IDF
Topic: How to update NVS partitions or bootloader after UART download mode is disabled
Replies: 5
Views: 4196

Re: How to update NVS partitions or bootloader after UART download mode is disabled

OK, thank you very much. I suspected something like this. Writing an app which is able to update the bootloader is quite a bit of work and doesn't really justify saving an 8€ board - I'll just head over to TME and order a few spares. Well, I suppose accidents like these are likely when playing aroun...
by dastoned
Fri Jul 09, 2021 12:02 pm
Forum: ESP-IDF
Topic: How to update NVS partitions or bootloader after UART download mode is disabled
Replies: 5
Views: 4196

Re: How to update NVS partitions or bootloader after UART download mode is disabled

Sure, I it's OTP and I can't change the fuse anymore. But the board is not bricked - it runs the bootloader and app just fine, and I can update the app using OTA. And the Flash encryption is in Development mode, so not a total loss. What I'm looking to do is to update the bootloader (e.g. to further...
by dastoned
Thu Jul 08, 2021 1:39 pm
Forum: ESP-IDF
Topic: How to update NVS partitions or bootloader after UART download mode is disabled
Replies: 5
Views: 4196

How to update NVS partitions or bootloader after UART download mode is disabled

I recently started looking into the trinity of Flash encryption, NVS encryption and Secure Boot on a ESP32-WROOM-32E module, ESP-IDF v4.3, idf.py, Linux. First I tackled Flash encryption. As I enabled Flash encryption (Development mode), I simultaneously disabled the UART download (SECURE_DISABLE_RO...
by dastoned
Tue Jul 06, 2021 1:53 pm
Forum: General Discussion
Topic: esp32.com site search broken (HTTP ERROR 500)
Replies: 0
Views: 1478

esp32.com site search broken (HTTP ERROR 500)

The search functionality of this site (esp32.com) is broken. E.g. searching for "nvs encryption" in Google Chrome results in HTTP ERROR 500. Could somebody please have a look at it? I'd argue that it's a rather critical function of a technical support site :)
by dastoned
Tue Apr 13, 2021 10:08 am
Forum: General Discussion
Topic: wifi mqtt ssl example certificate error
Replies: 1
Views: 1817

Re: wifi mqtt ssl example certificate error

Looks like the certificate parsing fails. Most likely the certificate you used is not in correct format.