RV1126B AI Camera Carrier PCB Design – AR0234, Dual GMSL2, MIPI CSI-2, Ethernet and Isolated Trigger

About the project

We are developing an industrial AI camera system based on the Rockchip RV1126B processor and onsemi AR0234 global-shutter image sensors. We want to use a ready-made RV1126B SOM/core board and develop a custom carrier PCB. Our internal team will concentrate on AI and application software. The freelancer/company must handle hardware design, PCB layout, board bring-up and low-level Linux camera integration. The system will support: Two GMSL2 camera inputs One local AR0234 MIPI CSI-2 camera Three simultaneous camera streams Isolated industrial trigger input Gigabit Ethernet for compressed preview and communication 3.3 V TTL UART service/debug connection 12–24 V DC power input Proposed Architecture RV1126B SOM/core board Minimum 2 GB RAM Minimum 16 GB eMMC MAX96716A dual GMSL2 deserializer or approved equivalent MAX96717-compatible remote GMSL2 cameras Two FAKRA or mini-FAKRA GMSL2 connectors Power-over-Coax support, if required by the selected cameras One local 23-pin AR0234 FPC connector Gigabit Ethernet PHY and RJ45 connector Isolated 12–24 V external trigger input 3.3 V UART/TTL connector Protected 12–24 V DC input Local AR0234 Interface We will provide the AR0234 module drawing and predefined 23-pin pinout. The local camera interface includes: One-lane MIPI CSI-2 clock and data I²C SCL/SDA RESET External sensor clock External trigger Shutter and flash signals AVDD 2.8 V DOVDD 1.8 V DVDD 1.2 V Multiple ground connections The designer must verify the FPC connector pitch, cable thickness, contact orientation and pin-1 direction before PCB layout. GMSL2 Requirements Two independent GMSL2 camera inputs Preferred deserializer: MAX96716A 3 Gbps/6 Gbps link support Both streams routed to one RV1126B CSI receiver Separate MIPI virtual channels for the two cameras I²C pass-through for remote sensor configuration Remote GPIO/trigger support Link-lock and error monitoring Optional PoC with independent current protection for each camera ESD and EMC protection Target cable length must be stated and tested The base quotation should cover the main RV1126B carrier board. Please provide a separate optional quotation if custom AR0234 + MAX96717 remote GMSL2 camera boards are also required. Trigger Requirements One galvanically isolated trigger input Accept 12–24 V industrial input Reverse-polarity and surge protection Trigger output translated to the required 1.8 V sensor level Trigger distributed to:Local AR0234 Both remote GMSL2 cameras RV1126B GPIO for timestamping Measured inter-camera trigger/exposure skew Target synchronization accuracy: preferably 1 µs or better Trigger polarity and operating mode configurable through software The industrial trigger voltage must never be connected directly to the image sensor. Ethernet and Communication 10/100/1000 Mbps Ethernet RGMII PHY or compatible RV1126B Ethernet interface RJ45 MagJack with ESD protection H.264/H.265 compressed network preview RTSP or another documented preview protocol 3.3 V TTL UART for debug and service Recovery/programming interface for the RV1126B module Power Requirements 12–24 V DC input Reverse-polarity protection Input fuse/eFuse Surge and transient protection EMI filtering DC/DC rails for the SOM, deserializer and cameras Independent protected PoC outputs, if PoC is included Power-good and reset sequencing Thermal design for continuous operation Approximate design target: 30–36 W input capacity, subject to the final camera power requirement PCB Requirements Preferably 6-layer or higher PCB Controlled-impedance MIPI CSI-2 routing Controlled-impedance GMSL2 routing Correct RGMII/Ethernet layout Proper grounding and power-plane design ESD protection on all external connectors Test points for power rails, I²C, reset, trigger and clocks Debugging provisions for GMSL and MIPI bring-up Design suitable for prototype and later production Software and BSP Scope The contractor must deliver the complete low-level working camera platform, including: RV1126B Linux BSP Kernel configuration Device-tree files AR0234 V4L2 subdevice driver AR0234 register initialization and mode tables External-trigger configuration MAX96716A/MAX96717 configuration or drivers GMSL virtual-channel configuration RKAIQ ISP configuration and AR0234 IQ/tuning files Exposure and gain controls Multi-camera streaming Trigger timestamp support Ethernet and UART support Example camera capture application Example H.264/H.265 network-preview application Complete build instructions Our team will develop the AI and final application after the camera platform is stable. Required Deliverables Complete system block diagram Power-tree calculation Schematic source files and PDF PCB layout source files Gerbers and fabrication files BOM with manufacturer part numbers Pick-and-place and assembly files PCB stack-up and impedance requirements 3D PCB model Linux kernel/BSP source code V4L2 drivers and device-tree source GMSL initialization source code RKAIQ IQ files Board bring-up report Trigger synchronization test report GMSL link and cable test report Thermal test results Manufacturing and functional-test procedure KiCad or Altium is acceptable. Please state which design software and version will be used. Minimum Acceptance Test The completed prototype must demonstrate: Two GMSL2 cameras and one local AR0234 camera detected simultaneously Three cameras streaming at 1920×1200 RAW10, 30 fps Continuous operation for at least eight hours No repeated MIPI CSI errors, GMSL link loss or unexplained dropped frames External 12–24 V trigger captures synchronized frames Measured synchronization/skew results supplied Exposure and gain controllable through V4L2 H.264/H.265 Ethernet preview working Automatic camera recovery after GMSL cable disconnect/reconnect Linux boots reliably from eMMC UART debug and system recovery working Higher frame rates may be discussed separately. Do not assume three-camera operation at 60 or 120 fps without bandwidth validation. Required Experience Please apply only if you have proven experience with several of the following: Rockchip RV1126/RV1126B camera platforms Rockchip Linux camera framework V4L2 sensor-driver development RKAIQ ISP tuning AR0234 or other RAW Bayer sensors MAX96716/MAX96717 or other GMSL2 devices Multi-camera MIPI virtual channels High-speed MIPI PCB layout Industrial power and isolated-input design Gigabit Ethernet hardware design Prototype bring-up and debugging Information Required in Your Proposal Please provide: Similar camera or GMSL projects completed. Which RV1126B SOM you recommend. Whether both CSI interfaces are exposed by that SOM. Experience with AR0234 drivers and ISP tuning. Experience with MAX96716A/MAX96717. Whether you can supply and assemble prototype boards. Number of prototypes included. Estimated project schedule. Fixed-price milestone breakdown. Software and hardware tools you will use. Which deliverables require third-party NDA documentation. Confirmation that all project source files will be provided to us. Suggested Milestones Architecture, SOM selection and feasibility review Schematic and power-tree approval PCB layout and design-review approval Prototype manufacturing and assembly Power and interface bring-up Single AR0234 camera streaming Dual GMSL2 camera streaming Three-camera simultaneous operation Trigger synchronization and Ethernet preview Final source-code, manufacturing-file and documentation handover All custom schematic, PCB and software source files developed under this project must be delivered to us with commercial usage and manufacturing rights.

Skills required