Search found 47 matches

by papaluna
Wed Aug 28, 2019 3:31 pm
Forum: Hardware
Topic: ADC VRef calibration eFuse
Replies: 3
Views: 228

Re: ADC VRef calibration eFuse

No matter what I supply for the VREF param it always gets set to 1100 because the fuse takes priority.
FYI I'm also using the Lolin D32 board intensively. I have always assumed that the fuse takes priority and there is no way around that. But I hope I am wrong.
by papaluna
Sun Jul 28, 2019 2:33 pm
Forum: General Discussion
Topic: Uptime in millis
Replies: 3
Views: 278

Re: Uptime in millis

I see 2 possibilities: 1. esp_log_timestamp() https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/system/log.html?highlight=esp_log_timestamp#_CPPv417esp_log_timestampv This also includes the time in the bootloader. 2. xTaskGetTickCount() * portTICK_PERIOD_MS https://docs.espressif.c...
by papaluna
Sun Jun 09, 2019 2:32 pm
Forum: ESP32 IDF
Topic: eclipse setup
Replies: 2
Views: 337

Re: eclipse setup

by papaluna
Tue May 21, 2019 8:00 am
Forum: ESP32 IDF
Topic: Internal RTC Drifting -8 Minutes in 15 Hours.
Replies: 5
Views: 487

Re: Internal RTC Drifting -8 Minutes in 15 Hours.

Hi, You can try to change in menuconfig the "RTC clock source" to from "Internal 150kHz oscillator" to "Internal 8.5MHz oscillator divided by 256". The accuracy should improve. The online help in menuconfig provides more information: - "Internal 8.5MHz oscillator divided by 256" option results in hi...
by papaluna
Mon May 20, 2019 6:56 pm
Forum: Hardware
Topic: Need guidelines: wiring and configuring an external 32Khz oscillator input in EDP-IDF
Replies: 4
Views: 484

Re: Need guidelines: wiring and configuring an external 32Khz oscillator input in EDP-IDF

Hi WIfive, Thanks for the review! I have created a 0.8V power rail and used that for the pullups in this test. Test#1 (my production setup): - Menuconfig: "(*) External 32kHz oscillator at 32K_XP pin" - RTC board pin "32K" => 10K pullup resistor => Power rail 0.8V (this pullup is specific for the DS...
by papaluna
Mon May 20, 2019 8:30 am
Forum: Hardware
Topic: Need guidelines: wiring and configuring an external 32Khz oscillator input in EDP-IDF
Replies: 4
Views: 484

Need guidelines: wiring and configuring an external 32Khz oscillator input in EDP-IDF

Hi, For ESP-IDF v3.2 in combination with Adafruit HUZZAH32 (ESP32-WROOM-32 module). This question is about the technical documentation and configuring an external 32Khz oscillator in EDP-IDF. I'm searching for instructions on how to use an external 32Khz oscillator output signal as input for the ESP...
by papaluna
Thu May 16, 2019 6:09 pm
Forum: General Discussion
Topic: Eclipse still showing "unresolved inclusion" and "Symbol couldn't be resolved"
Replies: 18
Views: 2222

Re: Eclipse still showing "unresolved inclusion" and "Symbol couldn't be resolved"

Hi Gunar, Thanks for trying. To be complete, I also import the attached XML file as follows: Project -> Properties: C/C++ General -> "Path & Symbols" property page -> tabIncludes: For Language="GNU C" Do: => Import "esp32-eclipse-includes.xml" # Do the following every time you copied files into the ...
by papaluna
Tue May 14, 2019 3:24 pm
Forum: General Discussion
Topic: Eclipse still showing "unresolved inclusion" and "Symbol couldn't be resolved"
Replies: 18
Views: 2222

Re: Eclipse still showing "unresolved inclusion" and "Symbol couldn't be resolved"

Gunar, I'm using Windows 10 and I recently upgraded from Eclipse Oxygen to Eclipse IDE 2019-03. Unfortunately the ESP-IDF include files were no longer found in the existing Eclipse projects. I had to set "Allow heuristic resolution of includes" to `*ON` (which is the default in Eclipse IDE 2019-03)....
by papaluna
Fri May 03, 2019 11:09 am
Forum: ESP32 IDF
Topic: BMP280 I2C temperature & pressure reading issue ***Solved***
Replies: 8
Views: 1225

Re: BMP280 I2C temperature & pressure reading issue

1. The vTaskDelay() is not suited for low values of millisec_delays. It is essential to use ets_delay_us() instead. Maybe that fixes it. /* \Brief : The delay routine * \param : delay in ms */ void BMP280_delay_millisec(u32 millisec) { ets_delay_us(millisec * 1000); } 2. A working ESP-IDF project fo...
by papaluna
Tue Apr 23, 2019 12:14 am
Forum: ESP32 IDF
Topic: Stupid enum problem....
Replies: 3
Views: 391

Re: Stupid enum problem....

I think the C syntax is

Code: Select all

enum [identifier] {enum-list};

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