users@lists.zephyrproject.org

Re: system call

Hi, Please read: https://docs.zephyrproject.org/latest/kernel/usermode/syscalls.html Hope this helps!

By Bolivar, Marti · #3148 ·

system call

Hi folks, I have a problem understanding how system call work. For example, system call /*fetch sensor samples */ rc=sensor_sample_fetch(dev); But I only see definition: __syscall int

By Henry Zhang · #3147 ·

Re: Support on driver and application Porting to Zephyr

TCS Confidential Dear Team, I am new to Zephyr and started working now. I wanted to to Port new device driver I2C to Zephyr OS and run sample application sensor TMP112 for specific custom hardware

By Raghuram Meridoddi <raghuram.meridoddi@...> · #3146 ·

Re: ws2812 #risc-v

The best way I've thought of neopixel (aka ws2812) timing is that its a 800 khz signal with 1/3 and 2/3 duty cycle. On ESP chips, the RMT peripheral is generally the best way to produce it. Here is

By Scott Shawcroft · #3145 ·

Re: ws2812 #risc-v

Hi: The following blog post is an excellent resource about pulse timing: https://wp.josh.com/2014/05/13/ws2812-neopixels-are-not-so-finicky-once-you-get-to-know-them/ You'll need to hook up a logic

By Bolivar, Marti · #3144 ·

ws2812 #risc-v

Dear all, I am trying to run Zephyr sample ./zephyr/samples/drivers/led_ws2812/README.rst on chipset ESP32c3. After some tuning of this example, I am able to run it, diodes starts to flash one by

By Ivo · #3143 ·

Regarding HTTPS support on zephyr RTOS

Hi Team, I am trying to enable https on zephyr system as i dont have file system on board i passed certificate and key in array format and passed it to init_ssl() callback but function not getting

By Narendra Sonawane <sonawanenarendra@...> · #3142 ·

Re: Time Zone Support #zephyr

Hi, thanks for the hints. I've looked into newlib and picolib but found no way to do it since the functions used in the Zephyr tests `tzset()` and `setenv()` are not supported by Zephyr according to

By e-va · #3141 ·

How to verify a driver using gpio1 on native_posix #drivers #devicetree #ztest

Hi! I'm trying to verify a "reset_n" gpio with Twister, using board = native_posix. The behavior is to make reset_n low for 1 ms and then set it high again. The driver

By jerry@... · #3140 ·

Re: LwM2M client with a B-L475E-IOT01A board (failed to setup networking)

Hello Robert, thanks a lot for the prompt reply! Adding 'CONFIG_NET_SOCKETS_OFFLOAD=n' did the trick and have managed to connect 🎉 ... *** Booting Zephyr OS build zephyr-v3.2.0-3154-g3c4783042eed

By Christos Vasilakis · #3139 ·

Re: LwM2M client with a B-L475E-IOT01A board (failed to setup networking)

Hi, The Wi-Fi driver you use implements socket functions on its own (i. e. uses socket offloading feature), but the implementation seems to be incomplete. Generally, it fails when the LwM2M lib

By Lubos, Robert · #3138 ·

LwM2M client with a B-L475E-IOT01A board (failed to setup networking)

Hello all, I am experimenting with the LwM2M client example on a B-L475E-IOT01A board. Based on the lwm2m example that comes with Zephyr I have modified it and added code that initializes the Wi-Fi

By Christos Vasilakis · #3137 ·

SMS Driver

Good Day, I am very new to Zephyr RTOS, as in I've set up the environment and have loaded sample files and flashed them to my pinnacle 100 DVK. It turns out that I need to write a driver for

By Stephen Doll <montanaee@...> · #3136 ·

Re: Time Zone Support #zephyr

Hi there, Zephyr supports both newlib and picolibc, which are fully-featured C standard libraries. Unless I am mistaken timezone-conversion functions are part of the C standard library

By Carles Cufi · #3135 ·

Time Zone Support #zephyr

Hi, I've got a question concerning time zone support: Does Zephyr provide any functions for converting UTC to other time zones? I have not found anything about it in the docs aside from the standard

By e-va · #3134 ·

Re: ESP32-AT socket connection errors #esp32

I used it in the past to do some smart devices at home but programming the nrf24 micro with Arduino IDE (maybe 8 years ago) instead of using it as a modem, maybe that's the difference. I'll keep

By Federico GC · #3133 ·

Re: ESP32-AT socket connection errors #esp32

Hmm...the NRF24L01 is a proprietary 2.4Ghz radio but doesn't implement wi-fi as far as I know.

By Jonathan Beri · #3132 ·

Re: ESP32-AT socket connection errors #esp32

Hi Jonathan, I'm using the latest release version ESP32-WROOM-32-V2.4.0.0. I'll continue investigating the issue. Do you know if there's support for NRF24L01 devices to use them as WiFi modems over

By Federico GC · #3131 ·

Re: ESP32-AT socket connection errors #esp32

I haven't tried this myself but make sure you check which release of the esp32-at your device is running. It also seems that the ESP32-S2 is no longer supported:

By Jonathan Beri · #3130 ·

ESP32-AT socket connection errors #esp32

Hi all, I'm using an ESP32-WROOM-S2 as WiFi modem through its AT commands interface and I'm facing a lot of issues using UDP/TCP sockets. I have a worker thread that publish messages over sockets (TCP

By Federico GC · #3129 ·

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