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samples: video: tcpserversink: add stm32n6570_dk support
Add configuration files for the stm32n6570_dk board. This enables streaming over ethernet of the images captured by MB1854 camera module compressed in 1920x1080 H264 video bitstream. Signed-off-by: Hugues Fruchet <[email protected]>
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‎samples/drivers/video/tcpserversink/README.rst‎

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- :zephyr:board:`mimxrt1064_evk`
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- `MT9M114 camera module`_
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- :zephyr:board:`stm32n6570_dk`
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- :ref:`ST B-CAMS-IMX-MB1854 <st_b_cams_imx_mb1854>`
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Wiring
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******
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USB debug connector (J41) in order to get console output via the freelink
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interface. Ethernet cable must be connected to RJ45 connector.
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On :zephyr:board:`stm32n6570_dk`, the MB1854 IMX335 camera module must be plugged in
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the CSI-2 camera connector. A RJ45 ethernet cable must be plugged in the ethernet CN6
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connector. For an optimal image experience, it is advice to embed STM32 image signal
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processing middleware: https://github.com/stm32-hotspot/zephyr-stm32-mw-isp.
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Building and Running
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********************
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:goals: build
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:compact:
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For :zephyr:board:`stm32n6570_dk`, the sample can be built with the following command:
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.. zephyr-app-commands::
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:zephyr-app: samples/drivers/video/tcpserversink
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:board: stm32n6570_dk
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:shield: st_b_cams_imx_mb1854
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:goals: build
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:compact:
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Sample Output
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=============
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‎samples/drivers/video/tcpserversink/boards/stm32n6570_dk.conf‎

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# Video buffer pool
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CONFIG_VIDEO_BUFFER_POOL_SZ_MAX=10000000
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CONFIG_VIDEO_BUFFER_POOL_NUM_MAX=10
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# Camera interface
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CONFIG_VIDEO_STM32_DCMIPP_SENSOR_PIXEL_FORMAT="pRAA"
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CONFIG_VIDEO_STM32_DCMIPP_SENSOR_WIDTH=2592
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CONFIG_VIDEO_STM32_DCMIPP_SENSOR_HEIGHT=1944
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CONFIG_FPU=y
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# Capture
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CONFIG_VIDEO_FRAME_WIDTH=1920
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CONFIG_VIDEO_FRAME_HEIGHT=1080
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CONFIG_VIDEO_PIXEL_FORMAT="NV12"
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CONFIG_VIDEO_CAPTURE_N_BUFFERING=2
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# Video encoder
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CONFIG_MAIN_STACK_SIZE=4096
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CONFIG_VIDEO_ENCODED_PIXEL_FORMAT="H264"
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# Network buffers
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CONFIG_NET_BUF_RX_COUNT=4
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CONFIG_NET_BUF_TX_COUNT=8

‎samples/drivers/video/tcpserversink/boards/stm32n6570_dk_stm32n657xx_fsbl.conf‎

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# Video buffer pool
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CONFIG_VIDEO_BUFFER_POOL_SZ_MAX=10000000
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CONFIG_VIDEO_BUFFER_POOL_NUM_MAX=10
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# Camera interface
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CONFIG_VIDEO_STM32_DCMIPP_SENSOR_PIXEL_FORMAT="pRAA"
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CONFIG_VIDEO_STM32_DCMIPP_SENSOR_WIDTH=2592
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CONFIG_VIDEO_STM32_DCMIPP_SENSOR_HEIGHT=1944
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CONFIG_FPU=y
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# Capture
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CONFIG_VIDEO_FRAME_WIDTH=1920
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CONFIG_VIDEO_FRAME_HEIGHT=1080
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CONFIG_VIDEO_PIXEL_FORMAT="NV12"
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CONFIG_VIDEO_CAPTURE_N_BUFFERING=2
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# Video encoder
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CONFIG_MAIN_STACK_SIZE=4096
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CONFIG_VIDEO_ENCODED_PIXEL_FORMAT="H264"
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# Network buffers
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CONFIG_NET_BUF_RX_COUNT=4
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CONFIG_NET_BUF_TX_COUNT=8

‎samples/drivers/video/tcpserversink/boards/stm32n6570_dk_stm32n657xx_fsbl.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,videoenc = &venc;
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};
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};
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&venc {
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status = "okay";
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};

‎samples/drivers/video/tcpserversink/boards/stm32n6570_dk_stm32n657xx_sb.conf‎

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# Video buffer pool
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CONFIG_VIDEO_BUFFER_POOL_SZ_MAX=10000000
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CONFIG_VIDEO_BUFFER_POOL_NUM_MAX=10
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# Camera interface
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CONFIG_VIDEO_STM32_DCMIPP_SENSOR_PIXEL_FORMAT="pRAA"
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CONFIG_VIDEO_STM32_DCMIPP_SENSOR_WIDTH=2592
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CONFIG_VIDEO_STM32_DCMIPP_SENSOR_HEIGHT=1944
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CONFIG_FPU=y
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# Capture
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CONFIG_VIDEO_FRAME_WIDTH=1920
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CONFIG_VIDEO_FRAME_HEIGHT=1080
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CONFIG_VIDEO_PIXEL_FORMAT="NV12"
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CONFIG_VIDEO_CAPTURE_N_BUFFERING=2
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# Video encoder
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CONFIG_MAIN_STACK_SIZE=4096
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CONFIG_VIDEO_ENCODED_PIXEL_FORMAT="H264"
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# Network buffers
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CONFIG_NET_BUF_RX_COUNT=4
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CONFIG_NET_BUF_TX_COUNT=8

‎samples/drivers/video/tcpserversink/boards/stm32n6570_dk_stm32n657xx_sb.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,videoenc = &venc;
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};
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};
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&venc {
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status = "okay";
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};

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