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/Zephyr-latest/dts/bindings/rtc/
Dnxp,irtc.yaml2 # SPDX-License-Identifier: Apache-2.0
9 - name: rtc.yaml
10 - name: rtc-device.yaml
16 clock-src:
20 - 0
21 - 1
24 0 <- 16.384 kHz
25 1 <- 32.768 kHz
27 output-clk-en:
31 - 0
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/Zephyr-latest/samples/drivers/counter/maxim_ds3231/
DREADME.rst1 .. zephyr:code-sample:: ds3231
3 :relevant-api: counter_interface
5 Interact with a DS3231 real-time clock using the counter API and dedicated driver API.
10 The `DS3231`_ temperature-compensated real-time clock is a
11 high-precision (2 ppm) battery backed clock that maintains civil time
15 Annotated Example Output
20 DS3231 has recorded a loss-of-oscillator::
22 ***** Booting Zephyr OS build zephyr-v1.14.0-2409-g322d53aedaa0 *****
37 Now 1563512509: 2019-07-19 05:01:49 Fri 200
46 which in the output below is 34 ms in the past. The time required to
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/Zephyr-latest/boards/st/stm32f469i_disco/doc/
Dindex.rst6 The STM32F469 Discovery kit features an ARM Cortex-M4 based STM32F469NI MCU
8 some highlights of the STM32F469I-DISCO board:
11 - STM32 microcontroller in BGA216 package
12 - On-board ST-LINK/V2-1 debugger/programmer, supporting USB reenumeration capability
13 - Flexible board power supply:
15 - ST-LINK/V2-1 USB connector
16 - User USB FS connector
17 - VIN from Arduino* compatible connectors
19 - Four user LEDs
20 - Two push-buttons: USER and RESET
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/Zephyr-latest/boards/st/stm32h7b3i_dk/doc/
Dindex.rst6 The STM32H7B3I-DK Discovery kit is a complete demonstration and development
7 platform for STMicroelectronics Arm® Cortex®-M7 core-based STM32H7B3LIH6QU
10 The STM32H7B3I-DK Discovery kit is used as a reference design for user
16 USB OTG_HS, microSD, USART, FDCAN, audio DAC stereo with audio jack input and output,
17 camera, SDRAM, Octo-SPI Flash memory and RGB interface LCD with capacitive touch
23 - STM32H7B3LIH6Q microcontroller featuring 2 Mbytes of Flash memory and 1.4 Mbyte of RAM in BGA225 …
24 - 4.3" (480x272 pixels) TFT color LCD module including a capacitive touch panel with RGB interface
25 - Wi-Fi |reg| module compliant with 802.11 b/g/n
26 - USB OTG HS
27 - Audio codec
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/Zephyr-latest/boards/weact/mini_stm32h743/doc/
Dindex.rst13 - STM32 microcontroller in LQFP100 package
14 - USB OTG or full-speed device
15 - 1 user LED
16 - User, boot, and reset push-buttons
17 - 32.768 kHz and 25MHz HSE crystal oscillators
18 - External NOR Flash memories: 64-Mbit Quad-SPI and 64-Mbit SPI
19 - Board connectors:
20 - Camera (8 bit) connector
21 - ST7735 TFT-LCD 160 x 80 pixels (RGB565 3-SPI)
22 - microSD |trade| card
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/Zephyr-latest/boards/weact/mini_stm32h7b0/doc/
Dindex.rst13 - STM32 microcontroller in LQFP100 package
14 - USB OTG or full-speed device
15 - 1 user LED
16 - User, boot, and reset push-buttons
17 - 32.768 kHz and 25MHz HSE crystal oscillators
18 - External NOR Flash memories: 64-Mbit Quad-SPI and 64-Mbit SPI
19 - Board connectors:
21 - Camera (8 bit) connector
22 - ST7735 TFT-LCD 160 x 80 pixels (RGB565 3-SPI)
23 - microSD |trade| card
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/Zephyr-latest/boards/fanke/fk750m1_vbt6/doc/
Dindex.rst6 The FK750M1-VBT6 core board by FANKE Technology Co., Ltd. is an advanced microcontroller
7 platform based on the STMicroelectronics Arm® Cortex®-M7 core STM32H750VBT6 microcontroller.
8 This board is an ideal solution for developers looking to create high-performance
12 The FK750M1-VBT6 is designed as a reference design for user application development before
20 FK750M1-VBT6 provides the following hardware components:
22 - STM32H750VB in LQFP100 package
23 - ARM 32-bit Cortex-M7 CPU with FPU
24 - 480 MHz max CPU frequency
25 - 128 KB Flash
26 - 1 MB SRAM: 192 Kbytes TCM RAM (64 Kbytes ITCM RAM + 128 Kbytes DTCM RAM), 864 Kbytes user SRAM, a…
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/Zephyr-latest/boards/st/stm32f7508_dk/doc/
Dindex.rst7 from audio, multi-sensor support, graphics, security, security, video,
8 and high-speed connectivity features. Important board features include:
10 - STM32F750N8H6 microcontroller featuring 64 Kbytes of Flash memory and 340 Kbytes of RAM, in BGA21…
11 - On-board ST-LINK/V2-1 supporting USB re-enumeration capability
12 - Five power supply options:
14 - ST LINK/V2-1
15 - USB FS connector
16 - USB HS connector
17 - VIN from Arduino connector
18 - External 5 V from connector
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/Zephyr-latest/boards/fanke/fk7b0m1_vbt6/doc/
Dindex.rst3 FANKE FK7B0M1-VBT6
9 The FK7B0M1-VBT6 core board by FANKE Technology Co., Ltd. is an advanced microcontroller
10 platform based on the STMicroelectronics Arm® Cortex®-M7 core STM32H7B0VBT6 microcontroller.
11 This board is an ideal solution for developers looking to create high-performance
12 applications, especially in the field of Human-Machine Interface (HMI), leveraging its
15 The FK7B0M1-VBT6 is designed as a reference design for user application development before
24 :alt: FK7B0M1-VBT6
26 FK7B0M1-VBT6 (Credit: FANKE Technology Co., Ltd)
31 FK7B0M1-VBT6 provides the following hardware components:
33 - STM32H7B6VB in LQFP100 package
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/Zephyr-latest/boards/st/stm32f746g_disco/doc/
Dindex.rst7 from audio, multi-sensor support, graphics, security, security, video,
8 and high-speed connectivity features. Important board features include:
10 - STM32F746NGH6 microcontroller featuring 1 Mbytes of Flash memory and 340 Kbytes of RAM, in BGA216…
11 - On-board ST-LINK/V2-1 supporting USB re-enumeration capability
12 - Five power supply options:
14 - ST LINK/V2-1
15 - USB FS connector
16 - USB HS connector
17 - VIN from Arduino connector
18 - External 5 V from connector
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/Zephyr-latest/boards/espressif/esp32_ethernet_kit/doc/
Dindex.rst6 The ESP32-Ethernet-Kit is an Ethernet-to-Wi-Fi development board that enables
7 Ethernet devices to be interconnected over Wi-Fi. At the same time, to provide
8 more flexible power supply options, the ESP32-Ethernet-Kit also supports power
11 .. _get-started-esp32-ethernet-kit-v1.2-overview:
13 ESP32-Ethernet-Kit is an ESP32-WROVER-E based development.
14 For more information, check the datasheet at `ESP32-WROVER-E Datasheet`_.
17 board B. The `Ethernet Board (A)`_ contains Bluetooth/Wi-Fi dual-mode
18 ESP32-WROVER-E module and IP101GRI, a Single Port 10/100 Fast Ethernet
23 .. _get-started-esp32-ethernet-kit-v1.2:
25 .. figure:: img/esp32-ethernet-kit-v1.2.jpg
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/Zephyr-latest/boards/m5stack/m5stack_stamps3/doc/
Dindex.rst6 M5Stack StampS3 is an ESP32-based development board from M5Stack.
9 - ESP32-S3FN8 chip (240MHz dual core)
10 - 512KB SRAM
11 - 384KB ROM
12 - 8MB Flash
13 - Wi-Fi
14 - Bluetooth
15 - User-Button
23 +---------------+-----------------------------------------------------------------+-----------+
26 | ESP32-S3FN8 | This MPU-ESP32S3 module provides complete Wi-Fi and Bluetooth | supported |
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/Zephyr-latest/dts/riscv/
Driscv32-litex-vexriscv.dtsi2 * Copyright (c) 2018 - 2020 Antmicro <www.antmicro.com>
4 * SPDX-License-Identifier: Apache-2.0
7 #include <zephyr/dt-bindings/i2c/i2c.h>
10 #address-cells = <1>;
11 #size-cells = <1>;
12 compatible = "litex,vexriscv", "litex-dev";
21 #address-cells = <1>;
22 #size-cells = <0>;
24 clock-frequency = <100000000>;
25 compatible = "litex,vexriscv-standard", "riscv";
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/Zephyr-latest/boards/st/sensortile_box_pro/
Dsensortile_box_pro.dts4 * SPDX-License-Identifier: Apache-2.0
7 /dts-v1/;
9 #include <st/u5/stm32u585aiixq-pinctrl.dtsi>
10 #include <zephyr/dt-bindings/input/input-event-codes.h>
13 model = "STMicroelectronics SENSORTILE-BOX-PRO board";
14 compatible = "st,sensortile-box-pro";
19 zephyr,code-partition = &slot0_partition;
20 zephyr,bt-hci = &hci_spi;
24 compatible = "gpio-leds";
44 compatible = "gpio-keys";
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/Zephyr-latest/boards/shields/mcp2515/doc/
Dindex.rst7 Stand-Alone CAN Controller with SPI Interface.
13 --------
15 The DFRobot CAN BUS shield supports the Microchip MCP2515 stand-alone CAN
24 --------
26 - MCP2515
28 - Stand-Alone CAN 2.0B Controller
29 - Up to 1Mb/s baud rate
30 - Standard and extended data and remote frames
31 - 3x Tx Buffers
32 - 2x Rx Buffers
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/Zephyr-latest/boards/others/stm32_min_dev/doc/
Dindex.rst7 breadboard-friendly breakout board for the `STM32F103x8`_ CPU. There
10 - Blue Pill Board
11 - Black Pill Board
50 +--------+---------------+
54 +--------+---------------+
55 | CLK | Clock |
56 +--------+---------------+
58 +--------+---------------+
60 +--------+---------------+
67 silk screen on the PCB reads BX- or BX+ to indicate 0 and 1 logic lines for B0 and B1
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/Zephyr-latest/boards/96boards/carbon/doc/
Dstm32f401xe.rst9 The 96Boards is based on the STMicroelectronics STM32F401RET Cortex-M4 CPU and
13 STM32F401RET Cortex-M4 CPU and an nRF51822 chip connected to
14 the Cortex-M4 CPU over SPI for Bluetooth LE connectivity. Even though
18 - The ``96b_carbon/stm32f401xe`` configuration is used when developing programs for
24 - The ``96b_carbon/nrf51822`` configuration should be used for programming
49 - STM32F401RET6 in LQFP64 package
50 - ARM |reg| 32-bit Cortex |reg|-M4 CPU with FPU
51 - 84 MHz max CPU frequency
52 - VDD from 1.7 V to 3.6 V
53 - 512 KB Flash
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/Zephyr-latest/boards/espressif/esp_wrover_kit/doc/
Dindex.rst6 ESP-WROVER-KIT is an ESP32-based development board produced by `Espressif <https://www.espressif.co…
8 ESP-WROVER-KIT features the following integrated components:
10 - ESP32-WROVER-E module
11 - LCD screen
12 - MicroSD card slot
14 Its another distinguishing feature is the embedded FTDI FT2232HL chip - an advanced multi-interface
16 without a separate JTAG debugger. ESP-WROVER-KIT makes development convenient, easy, and
17 cost-effective.
26 For more information, check `ESP32-WROVER-E Datasheet`_ and `ESP32 Datasheet`_.
31 The block diagram below shows the main components of ESP-WROVER-KIT and their interconnections.
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/Zephyr-latest/boards/ezurio/bt610/doc/
Dbt610.rst8 Cortex-M4F CPU.
15 * :abbr:`GPIO (General Purpose Input Output)`
16 * :abbr:`I2C (Inter-Integrated Circuit)`
25 * :abbr:`UART (Universal Asynchronous Receiver-Transmitter)`
46 +-----------+------------+----------------------+
49 | ADC | on-chip | adc |
50 +-----------+------------+----------------------+
51 | CLOCK | on-chip | clock_control |
52 +-----------+------------+----------------------+
53 | FLASH | on-chip | flash |
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/Zephyr-latest/doc/releases/
Drelease-notes-3.3.rst14 * Introduced :ref:`USB-C <usbc_api>` device stack with PD (power delivery)
17 CMSIS-DSP as the default backend.
30 * CVE-2023-0359: Under embargo until 2023-04-20
32 * CVE-2023-0779: Under embargo until 2023-04-22
66 removed in favor of new :dtcompatible:`zephyr,flash-disk` devicetree binding.
71 * Starting from this release ``zephyr-`` prefixed tags won't be created
82 image states). Use of a truncated hash or non-sha256 hash will still work
88 registration function at boot-up. If applications register this then
93 application code, these will now automatically be registered at boot-up (this
129 This may cause out-of-tree scripts or commands to fail if they have relied
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/Zephyr-latest/drivers/serial/
Duart_stm32.c2 * Copyright (c) 2016 Open-RnD Sp. z o.o.
6 * SPDX-License-Identifier: Apache-2.0
43 #include <zephyr/linker/linker-defs.h>
45 #include <zephyr/dt-bindings/memory-attr/memory-attr-arm.h>
70 /* Placeholder value when wakeup-line DT property is not defined */
105 struct uart_stm32_data *data = dev->data; in uart_stm32_pm_policy_state_lock_get()
107 if (!data->pm_policy_state_on) { in uart_stm32_pm_policy_state_lock_get()
108 data->pm_policy_state_on = true; in uart_stm32_pm_policy_state_lock_get()
118 struct uart_stm32_data *data = dev->data; in uart_stm32_pm_policy_state_lock_put()
120 if (data->pm_policy_state_on) { in uart_stm32_pm_policy_state_lock_put()
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