GMSL and MIPI: map the connection from camera to host
Start interface selection with a system connection diagram. Identify the camera, transmission path, host and software responsibilities so the discussion can move to specific components and configurations. Use this checklist for a selection meeting or supplier discussion.
1. Locate the camera and host
Record the physical distance, cable route, adapters and moving sections. For a selected host, collect the available input interfaces, connector information and related hardware. If the host is still open, list space constraints and candidate interfaces.
- Record: mounting position, required cable length, connectors, bends and service needs.
2. Identify the actual link devices
A typical GMSL link uses a serializer at the camera and a deserializer at the host. MIPI CSI-2 carries camera image data and may connect the GMSL receive side to the processor. Both can therefore appear in the same system diagram.
- Record: sensor, serializer, deserializer and processor models, marking selected and open items.
3. List the modes that must run together
For each camera, record resolution, frame rate, bit depth or pixel format, capture mode and synchronization. Review capacity against the actual devices and configuration rather than treating a single stream's pixel-data estimate as the available capacity of the whole path.
- Record: per-camera modes, simultaneous combinations and host input constraints.
4. Review power and control
Describe where power enters the module, who controls power-up and reset, and which devices sit on the control path. Recheck electrical definitions and power requirements when changing cables or connectors.
- Record: power method, pinout, signal levels, control bus and power-up ownership.
5. Add software and validation ownership
After selecting interface hardware, identify the owners of the driver, configuration, image processing and application capture. Agree one initial capture mode and its acceptance check before extending testing to all cameras and operating conditions.
- Record: software release, current driver status, first capture mode, and log and sample formats.
Keep the configuration and test records
The result should be a connection diagram with devices, cables, power, modes and owners. Keep open items visible so the design review can address them.