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by ESP_Angus
Fri Jul 10, 2020 7:57 am
Forum: General Discussion
Topic: Low power deep sleep issues WROOM-32 vs PICO-D4 (IDFGH-3624)
Replies: 7
Views: 290

Re: Low power deep sleep issues WROOM-32 vs PICO-D4 (IDFGH-3624)

Hi Lee, Unfortunately, I re-tested the PICO today and realised I made a mistake - after cleaning the board of flux residue properly and removing some components that I thought were not contributing to deep sleep power draw, I can no longer reproduce this. We're seeing proper deep sleep currents (<10...
by ESP_Angus
Fri Jul 10, 2020 7:02 am
Forum: ESP32 IDF
Topic: Compiling protobuf files with project build
Replies: 2
Views: 105

Re: Compiling protobuf files with project build

Hi Szabi,

Glad to hear that you found the solution.

Angus
by ESP_Angus
Fri Jul 10, 2020 3:22 am
Forum: General Discussion
Topic: [Forum Issue] My topic disappeared
Replies: 2
Views: 95

Re: [Forum Issue] My topic disappeared

Hi Szabi,

Your topic seems to be showing now - I can open the link from your post in a private window and I can view the topic.

I'm not sure what could have happened in the interim, sorry.

Angus
by ESP_Angus
Thu Jul 09, 2020 11:08 am
Forum: General Discussion
Topic: Low power deep sleep issues WROOM-32 vs PICO-D4 (IDFGH-3624)
Replies: 7
Views: 290

Re: Low power deep sleep issues WROOM-32 vs PICO-D4 (IDFGH-3624)

Hi Lee, Thanks for the extra details. I'm able to reproduce this here on a PICO-D4. We'll continue investigating. Similar hardware setups (with PICO-D4) have been measured at much lower power consumption in the past, so I am fairly sure this is a software regression. The internal configuration of th...
by ESP_Angus
Thu Jul 09, 2020 6:02 am
Forum: General Discussion
Topic: Low power deep sleep issues WROOM-32 vs PICO-D4 (IDFGH-3624)
Replies: 7
Views: 290

Re: Low power deep sleep issues WROOM-32 vs PICO-D4

Hi tabulous, Thanks for being patient while someone got back to you. You're right that 500uA is much higher than expected for ESP32-PICO-D4 deep sleep power consumption. The deep sleep consumption is tested as part of the manufacturing process, but it may be that you have a bad chip somehow. I have ...
by ESP_Angus
Fri Jul 03, 2020 9:26 am
Forum: ESP32 IDF
Topic: Get SHA256 of SPIFFS partition?
Replies: 9
Views: 393

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: 9
Views: 393

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: 121

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: 194

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: 184

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 ...

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