Product Data Sheet / Brochure
Table Of Contents
- Intel® RealSense™ Depth Camera D400-Series Datasheet
- Contents
- Revision History
- 1 Description and Features
- 2 Introduction
- 2.1 Disclaimer
- 2.2 Purpose and Scope of this Document
- 2.3 Terminology
- 2.4 Overview
- 2.5 Stereo Vision Depth Technology Overview
- 2.6 D400-Series Camera Block Diagram
- 2.7 Depth Module
- 2.8 Color Image Signal Processor (ISP)
- 2.9 Intel® RealSense™ Vision Processor D4 Card
- 2.10 D400-Series Depth Cameras Thermals
- 2.11 Storage and Operating Conditions
- 3 Functional Specification
- 4 Software Package
- 5 Firmware
- 6 Calibration Support
- 7 Regulatory Compliance
- 8 Mechanical Drawings
Firmware
Datasheet 25
5 Firmware
The firmware contains the operation instructions. Upon runtime, Intel® RealSense™
Depth Camera D400 series loads the firmware and programs the component registers.
If the Intel® RealSense™ Depth Camera D400 series is configured for update or
recovery, the unlocked R/W region of the firmware can be changed.
5.1 Firmware Update
During a firmware update, the Device Firmware Update tool for Intel® RealSense™
technology will issue a device firmware update command to the RealSense D400
series Depth Camera. The RealSense D400 series Depth Camera will then reset into
firmware update mode. The Device Firmware Update tool for Intel® RealSense™
technology uses a single binary file to maintain the firmware image. The Device
Firmware Update tool for Intel® RealSense™ technology compares the firmware
version installed on the camera to the firmware version file to be updated. Based on
the comparison, the Device Firmware Update tool for Intel® RealSense™ technology
will downgrade, upgrade, or skip if the versions match.
The device firmware update tool and firmware binary will be located at the
https://downloadcenter.intel.com/
5.1.1 Update Limits
The firmware update engine does not allow infinite update cycles between older and
current versions of firmware. The engine will establish a baseline version of firmware
based on the latest firmware version installed. The engine will allow a return to a
previous version or baseline version of firmware up to 20 times. After the 20th
update, the engine will only allow an update to a firmware revision higher than the
baseline version.
5.2 Recovery
A read only boot sector is built into firmware which enables basic operation regardless
of the integrity of the operation instructions region. This ensures the imaging system
can function in the case of firmware not be written properly. When a firmware
recovery is required, the Device Firmware Update tool for Intel® RealSense™
technology will communicate with the recovery driver to set the DFU pin low and reset
the imaging system in recovery mode.
Firmware Recovery can also be externally triggered by having controllable interrupt
connected to the Intel® RealSense™ Vision Processor D4 DFU (Device Firmware
Update) pin.
The firmware recovery sequence will be triggered by the firmware client utility. This
client utility will communicate through ACPI _DSM to trigger the controllable interrupt
(GPIO) at the appropriate times. The firmware recovery requires an ACPI _DSM
interface to control the interrupt GPIO in configuring to firmware recovery state. The
_DSM methods and BIOS use the Write to GPIO functions to set the controllable
interrupt.
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