Home
QNX SDP 8.0 BSP Documentation
The board support package (BSP) documentation includes user guides that describe how to work with the BSPs provided for the QNX Software Development Platform (SDP) 8.0, and release notes that describe the supported features and hardware as well as any known issues for each BSP.
Broadcom
Raspberry Pi 5 BCM2712
User's Guide
BSP-specific Drivers and Utilities
mbox-bcm
Mailbox utility for BCM SOC

QNX SDP 8.0 BSP Documentation
The board support package (BSP) documentation includes user guides that describe how to work with the BSPs provided for the QNX Software Development Platform (SDP) 8.0, and release notes that describe the supported features and hardware as well as any known issues for each BSP.
- AMD
- Broadcom
  - Raspberry Pi 4 BCM2711
  - Raspberry Pi 5 BCM2712
    - Graphics Release Notes
      This document lists the details, updates, and issues associated with the Raspberry Pi screen board support release, specifically with respect to the Raspberry Pi 5.
    - User's Guide
      - Before You Begin
        Before you begin working with this BSP, you should become familiar with the resources available to you.
      - About This BSP
        These notes list what's included in the BSP, and identify the host OSs and boards it supports.
      - Installation Notes
        These installation notes describe how to build, work with, and run this BSP.
      - Build the BSP
        You can use the QNX Momentics IDE or the commandline on Linux or Windows to build an image.
      - Driver Commands
        The tables below provide a summary of driver commands for the Xilinx KD240.
      - BSP-specific Drivers and Utilities
        i2c-dwc-rpi5
        Driver for inter-integrated circuits on the Xilinx Zynq UltraScale+ MPSoC KD240 Evaluation Kit.
        mbox-bcm
        Mailbox utility for BCM SOC
        devc-serpl011-rpi5
        Serial driver for PL011 on the Xilinx KD240.
        devu-hcd-dwc3-xhci.so
        Driver for eXtensible Host Controller Interface (xHCI) USB controllers
        gpio-rp1
        GPIO utility for Raspberry Pi5 RP1
        spi-dwc
        Enhanced Serial Peripheral Interface (SPI)
        fan-rpi5
        Fan control utility for BCM2712 SOC
- Intel
- NXP
- Texas Instruments
- Generic Information
Typographical Conventions, Support, and Licensing
This section describes the typographical conventions used throughout the documentation, explains how to obtain technical support, and provides some information about licensing.

mbox-bcm

QNX Board Support Packages8.0BSP User's GuideRaspberry Pi 5raspberrypi.orgBroadcomARM

Mailbox utility for BCM SOC

Syntax:

 mbox-bcm [commandstring|command_id] [:|=] [parameters]

Runs on:

QNX OS

Options:

commandstring:

    clockrate
    clockratemeasured
    clocks
    clockstate
    cmdline
    dmachan
    firmwarerev
    firmwarevar
    firmwarehash
    gpioconfig
    gpiostate
    macaddress
    maxclockrate
    maxtemperature
    maxvoltage
    memory
    minclockrate
    minvoltage
    model
    notifyxhcireset
    powerstate
    powertiming
    revision
    serial
    temperature
    throttled
    turbo
    vcmemory
    voltage

Examples:

mbox-bcm temperature    # get temperature
mbox-bcm 0x30006        # get temperature in hex value
mbox-bcm clockrate:3    # get arm clock

Page updated: December 02, 2025