shields: st_stm32f4dis_cam: ov9655 sensor based shield
Introduction of the STM32F4DIS-CAM shield for STM32 boards embedding a DVP based OV9655 sensor. Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
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boards/shields/st_stm32f4dis_cam/Kconfig.shield
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boards/shields/st_stm32f4dis_cam/Kconfig.shield
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# Copyright (c) 2025 STMicroelectronics
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# SPDX-License-Identifier: Apache-2.0
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config SHIELD_ST_STM32F4DIS_CAM
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def_bool $(shields_list_contains,st_stm32f4dis_cam)
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CONFIG_VIDEO_INIT_PRIORITY=72
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boards/shields/st_stm32f4dis_cam/doc/index.rst
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boards/shields/st_stm32f4dis_cam/doc/index.rst
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.. _st_stm32f4dis_cam:
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ST STM32F4DIS-CAM
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#################
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Overview
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********
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The STM32F4DIS-CAM camera board embeds a 1.3MPix OV9655 sensor and a
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30 pins FFC connector in order to be used for some of the STM32 Discovery
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kits such as STM32L4R9I-disco board offering a DVP camera interface.
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Requirements
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************
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The camera module bundle is compatible with STM32 Discovery kits and
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Evaluation boards featuring a 30 pins FFC connector, such as the STM32F4
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Discovery kit or STM32L4R9I Discovery kit.
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Usage
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*****
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The shield can be used in any application by setting ``SHIELD`` to
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``st_stm32f4dis_cam`` for boards with the necessary device tree node labels.
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Set ``--shield "st_stm32f4dis_cam"`` when you invoke ``west build``. For example:
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.. zephyr-app-commands::
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:zephyr-app: samples/drivers/video/capture
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:board: stm32l4r9i_disco
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:shield: st_stm32f4dis_cam
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:goals: build
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boards/shields/st_stm32f4dis_cam/shield.yml
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boards/shields/st_stm32f4dis_cam/shield.yml
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shield:
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name: st_stm32f4dis_cam
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full_name: ST STM32F4DIS-CAM
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vendor: st
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supported_features:
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- video
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boards/shields/st_stm32f4dis_cam/st_stm32f4dis_cam.overlay
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boards/shields/st_stm32f4dis_cam/st_stm32f4dis_cam.overlay
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/*
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* Copyright (c) 2025 STMicroelectronics
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/ {
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chosen {
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zephyr,camera = &st_cam_dvp;
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};
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};
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&dma2 {
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status = "okay";
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};
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&dmamux1 {
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status = "okay";
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};
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&st_cam_i2c {
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ov9655: camera@30 {
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compatible = "ovti,ov9655";
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reg = <0x30>;
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pwdn-gpios = <&dcmi_camera_connector 6 GPIO_ACTIVE_HIGH>;
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port {
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ov9655_ep_out: endpoint {
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remote-endpoint-label = "dcmi_ep_in";
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};
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};
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};
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};
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#define MCO1_SEL_SYSCLK 1
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#define MCO1_PRE_DIV_4 2
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&mco1 {
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status = "okay";
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clocks = <&rcc STM32_SRC_SYSCLK MCO1_SEL(MCO1_SEL_SYSCLK)>;
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prescaler = <MCO1_PRE(MCO1_PRE_DIV_4)>;
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pinctrl-0 = <&rcc_mco_pa8>;
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pinctrl-names = "default";
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};
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&st_cam_dvp {
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status = "okay";
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/* DMA config is already hardcoded within the DCMI driver */
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dmas = <&dma2 5 0 0>;
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port {
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dcmi_ep_in: endpoint {
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remote-endpoint-label = "ov9655_ep_out";
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bus-width = <8>;
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hsync-active = <1>;
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vsync-active = <1>;
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pclk-sample = <1>;
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};
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};
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};
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