Search found 2122 matches

by ESP_Angus
Mon May 04, 2020 12:02 am
Forum: ESP32 IDF
Topic: Where is math.h?
Replies: 2
Views: 359

Re: Where is math.h?

Hi valery, math.h is installed as part of the libc (newlib), so on recent ESP-IDF versions it's installed alongside the toolchain (gcc) not inside ESP-IDF itself. If you look around the location where the toolchain is installed then you can find it (note that recent versions of ESP-IDF ship a few di...
by ESP_Angus
Fri May 01, 2020 5:08 am
Forum: ESP32 Arduino
Topic: That is a somewhat curious forum here...
Replies: 8
Views: 917

Re: That is a somewhat curious forum here...

Thank you, but what can I do with this information? esp_err_t esp_wifi_set_ps(WIFI_PS_MAX_MODEM); returns an error from the library: 'WIFI_PS_MAX_MODEM' was not declared in this scope. Does that mean that the library under ...\Arduino\Hardware\espressif\esp32\libraries\WiFi just makes no use of the...
by ESP_Angus
Fri May 01, 2020 12:05 am
Forum: ESP32 IDF
Topic: ESP-TLS memory quirck
Replies: 2
Views: 697

Re: ESP-TLS memory quirck

Hi Klaus, Thanks for all these details. Could you please post the full function that exhibits this problem, as well? (If it's part of a more complex function, is it possible to create a minimal example function that still does this?) Are you sure that all fields in the "cfg" structure are being init...
by ESP_Angus
Thu Apr 30, 2020 11:41 pm
Forum: ESP32 IDF
Topic: esp-idf 4.0 build system does not find certain esp-idf include files
Replies: 3
Views: 602

Re: esp-idf 4.0 build system does not find certain esp-idf include files

Hi wevets, One of the biggest changes in the CMake-based build system is that components (apart from "main") don't automatically include the public header files of all other components. Each component has to declare the components that it requires This allows the build to be faster, and also provide...
by ESP_Angus
Thu Apr 30, 2020 11:35 pm
Forum: ESP32 IDF
Topic: Low latency communication for PID controller feedback
Replies: 2
Views: 451

Re: Low latency communication for PID controller feedback

Hi Castie, What is the best way to transmit 20 bytes of data with >5Khz frequency? This data woild be used as PID controller feedback so low latency is needed. Do you mean via Wi-Fi? This is probably not realistically possible, the best possible latency on a regular Wi-Fi infrastructure network is u...
by ESP_Angus
Fri Apr 24, 2020 5:13 am
Forum: Hardware
Topic: Read Serial without USB
Replies: 2
Views: 930

Re: Read Serial without USB

Hi Stefan, The ESP32 SoC can be powered from an external power supply. There are some ESP32 development boards where the ESP32 can't come out of reset if the onboard USB to serial chip isn't powered. On these boards providing 5V to the "5V" pin on the board doesn't allow it to work. As far as I know...
by ESP_Angus
Wed Apr 22, 2020 5:23 am
Forum: Report Bugs
Topic: SSL Cert on https://dl.espressif.com/ has expired
Replies: 1
Views: 978

Re: SSL Cert on https://dl.espressif.com/ has expired

Updated now, sorry for the inconvenience.

Angus
by ESP_Angus
Tue Apr 21, 2020 4:03 am
Forum: Hardware
Topic: D2WD Bootstrap to use Embedded flash
Replies: 2
Views: 1253

Re: D2WD Bootstrap to use Embedded flash

Hi Brento, I think the confusion here is over the "Timing of SDIO Slave" table in section "2.4 Strapping Pins" of the ESP32 datasheet. This is only something you need to be concerned about if using the SDIO Slave peripheral. Booting ESP-IDF from the embedded flash chip doesn't involve the SDIO Slave...
by ESP_Angus
Tue Apr 14, 2020 11:43 pm
Forum: ESP32 IDF
Topic: Are ULP restrictions gone in silicon V3?
Replies: 4
Views: 894

Re: Are ULP restrictions gone in silicon V3?

That's correct, unfortunately the situation is the same in V3. Will update the comments in the header to match.
by ESP_Angus
Thu Apr 09, 2020 10:59 am
Forum: ESP32 IDF
Topic: ESP-IDF V3.3.2 has been released (LTS)
Replies: 0
Views: 767

ESP-IDF V3.3.2 has been released (LTS)

Documentation for release v3.3.2 is available at https://docs.espressif.com/projects/esp-idf/en/v3.3.2/ ESP-IDF v3.3.2 is a bugfix update for ESP-IDF v3.3. The latest stable release of ESP-IDF at time of writing is ESP-IDF v4.0 . ESP-IDF v3.3.x is a Long Term Support release and will be supported un...

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