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by ESP_Angus
Fri Jul 03, 2020 9:26 am
Forum: ESP32 IDF
Topic: Get SHA256 of SPIFFS partition?
Replies: 8
Views: 282

Re: Get SHA256 of SPIFFS partition?

Hi dmaxben,

Yes, this will be it. There is a limit to the total amount of flash which can be mapped at one time in the address space.

This is a bug, we'll fix it (the routine should map the region in chunks to handle this). Not certain if this fix will be backported to v3.3, though.

Angus
by ESP_Angus
Wed Jul 01, 2020 4:44 am
Forum: ESP32 IDF
Topic: Get SHA256 of SPIFFS partition?
Replies: 8
Views: 282

Re: Get SHA256 of SPIFFS partition?

Hi Max, Thanks for providing a detailed report of what isn't working. The bug linked on GitHub was an issue introduced in ESP-IDF v4.1 development (regression when we added support for ESP32-S2 Beta), so it shouldn't be a bug in v3.x at all. I just did a quick test with ESP-IDF v3.3.1 by modifying t...
by ESP_Angus
Wed Jul 01, 2020 4:24 am
Forum: ESP32 IDF
Topic: Flash Encryption
Replies: 1
Views: 95

Re: Flash Encryption

Hi Alex, Espressif doesn't develop platform.io, it's developed and supported by the platform.io team. I'm sure their documentation is solid, but you'll have to ask them about the specifics and any issues that crop up. If you plan to use ESP-IDF and not platform.io then the ESP-IDF documentation (fir...
by ESP_Angus
Wed Jul 01, 2020 4:20 am
Forum: General Discussion
Topic: ESP32S2 Digital Signature Peripheral vs. HSM
Replies: 2
Views: 150

Re: ESP32S2 Digital Signature Peripheral vs. HSM

Hi Patrick, You're correct that the Digital Signature Peripheral is intended to fill a similar role to an on-board and off-chip HSM. In both cases, the idea is to have some secret key material that cannot easily be copied by an attacker even if they obtain full access to the hardware and software. T...
by ESP_Angus
Fri Jun 26, 2020 4:02 am
Forum: General Discussion
Topic: Error build simple project eclipse hello_world for the esp-wroom-32, failed installation package cryptography
Replies: 1
Views: 167

Re: Error build simple project eclipse hello_world for the esp-wroom-32, failed installation package cryptography

Hi lucia, Which ESP-IDF version are you using? MSYS2 project removed Python 2 packages (as Python 2 are now end of life) so we had to rebuild the MSYS2 Windows environments to use Python 3. If you're using ESP-IDF v3.3: We haven't released ESP-IDF v3.3.3 with this fix yet, but it should be possible ...
by ESP_Angus
Fri Jun 26, 2020 3:55 am
Forum: ESP32 IDF
Topic: ESP32S2 running ULP-FSM example sought
Replies: 4
Views: 194

Re: ESP32S2 running ULP-FSM example sought

Hi Bernd, I'm afraid that, as you've noticed, we haven't updated the ESP-IDF ULP-FSM examples to work on ESP32-S2 yet. However the two ULPs are very similar, it should be possible to start with an ESP32 ULP-FSM program and make a few tweaks until it works. Sorry I don't have anything more specific I...
by ESP_Angus
Fri Jun 26, 2020 3:50 am
Forum: General Discussion
Topic: help error undefined reference to `_Unwind_GetTextRelBase
Replies: 2
Views: 165

Re: help error undefined reference to `_Unwind_GetTextRelBase

Hi mohasrj, Which ESP-IDF version are you using? If you have C++ exceptions disabled in the project config (disabled is the default), then this looks the same as these two issues: https://github.com/espressif/esp-idf/issues/5363 & https://github.com/espressif/esp-idf/issues/5224 There is a pull requ...
by ESP_Angus
Fri Jun 26, 2020 3:43 am
Forum: ESP32 IDF
Topic: When does ESP-IDF v4.1 is expected to be released?
Replies: 1
Views: 192

Re: When does ESP-IDF v4.1 is expected to be released?

Hi Gal, There are still some bug fixes outstanding, but we're planning to publish a release candidate (-rc) in mid-July. Usually the final release comes a week after the release candidate. The changes between now and the release should be minimal, so if you're starting a new project then I suggest u...
by ESP_Angus
Thu Jun 25, 2020 1:26 am
Forum: ESP32 IDF
Topic: ESP Flash Download Tool, Combine Functionality
Replies: 4
Views: 312

Re: ESP Flash Download Tool, Combine Functionality

Hi Alex, There are two bytes in the header of the bootloader ( see here ) that determine the initial flash configuration mode of the bootloader (SPI flash speed, mode, size). Both the GUI flash tool and esptool.py can change these arguments at flashing time. This is why the value may be different wh...
by ESP_Angus
Wed Jun 24, 2020 11:48 pm
Forum: ESP32 IDF
Topic: CMake - Nested component
Replies: 8
Views: 1440

Re: CMake - Nested component

So had to revisit this. The stuff in the ADF doesn't allude to much, perhaps I am not seeing it? If I use: set(EXTRA_COMPONENT_DIRS foo) Does that overwrite what I previously set in the root of my project, or does it append to it? If you put this line in the component CMakeLists.txt then it will pr...

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