Documentation Requests/Feedback

ESP_Sprite
Posts: 2582
Joined: Thu Nov 26, 2015 4:08 am

Re: Documentation Requests/Feedback

Postby ESP_Sprite » Thu Mar 28, 2019 2:35 am

Sorry, I think you misunderstand as there's no SDR here. The S in SDR stands for software, implying there's software parsing the output of the ADCs. That's not true here, the ADCs/DACs are hardwired into a fixed WiFi/BT MAC; there's no software DSP'ing involved.

chibill
Posts: 3
Joined: Wed Mar 27, 2019 2:48 pm

Re: Documentation Requests/Feedback

Postby chibill » Thu Mar 28, 2019 4:10 am

Thats very confusing mentions internal details about the DAC and ADC attached to the MACs if they weren't somehow relevant to using the Core.

locustcox
Posts: 8
Joined: Tue Sep 04, 2018 9:36 pm

Re: Documentation Requests/Feedback

Postby locustcox » Wed Apr 24, 2019 1:53 pm

There really needs to be documentation of the esp32 file header. Where is the checksum stored? Where is the signature stored for image verification? What is the checksum algorithm?

We put out own image header into the esp32, and since we need to insert our image size into the image, we have to re-calculate the checksum so that the esp32 can validate the image. Which tools can we use to re-checksum the image after adding our size to our own internal file header? Are there image tools that we can use? Documenting things like that would be really useful.

ESP_Sprite
Posts: 2582
Joined: Thu Nov 26, 2015 4:08 am

Re: Documentation Requests/Feedback

Postby ESP_Sprite » Thu Apr 25, 2019 2:00 am

FWIW, the image files normally are generated with esptool.py; perhaps you can use/modify that for your use case. It also has the documentation for the image format: https://github.com/espressif/esptool/wi ... age-Format

locustcox
Posts: 8
Joined: Tue Sep 04, 2018 9:36 pm

Re: Documentation Requests/Feedback

Postby locustcox » Thu Apr 25, 2019 2:23 pm

Thanks. I saw that link earlier, but it says "Note: Currently this document refers to ESP8266 only. ESP32 has some additional headers." Any idea when the esp32 specific headers might be added there?"

locustcox
Posts: 8
Joined: Tue Sep 04, 2018 9:36 pm

Re: Documentation Requests/Feedback

Postby locustcox » Fri Apr 26, 2019 11:59 am

Unrelated documentation request: Can you document how aps are sorted when esp_wifi_scan_start() is called? I work in an environment with a TON of wifi access points, and I'd like to only grab the top 10 ssids found sorted by rssi. However, it isn't documented how APs are sorted when esp_wifi_scan_get_ap_records() is called.

Mr_Red
Posts: 10
Joined: Mon Sep 11, 2017 12:41 pm

Re: Documentation Requests/Feedback

Postby Mr_Red » Wed May 08, 2019 3:00 pm

I have two requests for the technical reference manual.

First, the doc of some Ethernet MAC registers seem incomplete. Specifically, in EMAC_EX_PHYINF_CONF_REG only EMAC_PHY_INTF_SEL is documented. In the code the other bits are defined / used (e.g. EMAC_EX_SBD_FLOWCTRL).

Second, Ethernet MAC registers addresses (10.9) are defined in the 0x6002xxxx range while the code refers to 0x3ff6xxxx range. After a little bit of search it seems 0x6000xxxx address is AHB and equivalent to 0x3ff4xxxx (found in low power section 30.4). It would be nice if this mapping would be described in the address mapping section (1.3.x). Also maybe use the 0x3ff6xxxx range for the summary to match other register summaries.

Mr_Red
Posts: 10
Joined: Mon Sep 11, 2017 12:41 pm

Re: Documentation Requests/Feedback

Postby Mr_Red » Mon May 13, 2019 12:53 pm

I'm getting "Page does not exist yet" error when trying to access the following versions of IDF doc (from the drop-down menu or from the release notes):
https://docs.espressif.com/projects/esp ... 3.3-beta3/
https://docs.espressif.com/projects/esp-idf/en/v3.1.4/

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