VMIC VME7807RC Single Board Computer

Module Feature

VMIC VME7807RC is a single-slot 6U VME64 Eurocard single board computer built on Intel Pentium M processor paired with Intel 855GME chipset, supporting CPU speed options from 1.1 GHz up to 1.8 GHz. It accepts one 200-pin DDR SDRAM SODIMM plus optional soldered 512 MB onboard memory, maximum total memory up to 1.5 GB. Equipped with one PCI-X PMC mezzanine expansion site running at 66 MHz for reflective memory or custom I/O modules. Integrated graphics engine supports front-panel SVGA and rear DVI-D dual-head display output. Network interfaces include front-panel 10/100 Mbps Ethernet plus dual gigabit Ethernet with optional VITA 31.1 P0 rear interface. Four 16550-compatible serial ports configurable for RS232/422, four USB2.0 channels, SATA and IDE storage interface, PS/2 keyboard/mouse, hardware watchdog timer and real-time clock. Flash BIOS supports field firmware upgrade. Passive heatsink cooling without fan; rugged board construction with shock and vibration resistance, widely deployed for real-time simulation, turbine control, aerospace test and high availability industrial embedded systems.

Working principle

The Pentium M processor executes embedded operating system and user application code. PCI-to-VME bridge implements VMEbus master and slave functions for data exchange with other VME modules in chassis. PCI-X PMC connector enables expansion with mezzanine boards for extra communication or signal acquisition. Integrated GPU handles display output; multi-Ethernet controllers manage network data transmission. Flash memory stores BIOS firmware for boot sequence. Programmable watchdog timer automatically resets the board when software crash occurs to maintain system stability.

Onboard components

Intel Pentium M CPU, Intel 855GME chipset, DDR SDRAM socket, soldered optional memory array, integrated SVGA/DVI graphics chip, gigabit & fast Ethernet PHY chips, multi-channel UART, flash BIOS chip, watchdog FPGA logic, PCI-X PMC connector, VME J1/J2 transceivers, front panel I/O connectors, status LED array, reset pushbutton.

LED indicators

Front panel LED indicators for power, CPU heartbeat, 10/100 Ethernet link/activity, gigabit Ethernet activity and system fault warning.

Hardware self-diagnosis

Visual inspection of PCB, front panel ejectors and solder joints; power-on POST self-test; memory read/write cyclic verification; VME register access test; Ethernet loopback test; serial port communication test; BIOS version and watchdog function validation.

Programming software

Supports VxWorks, Linux, Windows XP embedded OS; VMIC VME device driver suite, BIOS configuration utility and dedicated board diagnostic firmware.

Electrical & Process Parameters

Model: VME7807RC Device type: 6U VME64 single board computer Bus standard: VME64, PCI-X for PMC site Processor: Intel Pentium M Memory: Max 1.5 GB DDR SDRAM Control mode: VME master / slave operation, hardware watchdog Power supply: +5 V from VME backplane Cooling: Passive convection cooling Protection: Over current, ESD protection, watchdog auto-reset Mounting: Standard 6U VME front panel ejector locking Protection class: Conformal coating optional

Mechanical & Structure

Mounting: Standard single-slot 6U VME Eurocard Protection class: PCB with optional conformal coating

Environmental

Operating temperature: -40℃ ~ +70℃ for conformal coated version Storage temperature: -40℃ ~ +85℃ Ambient humidity: 5~95% non-condensing Certification: CE compliant Status: VMIC rugged VME64 Pentium M single board computer

Installation

Follow ESD safety procedure before handling. Fully power off VME chassis. Insert VME7807RC into vacant 6U VME slot and lock front panel ejector latches. Connect front panel DVI, Ethernet, serial, USB and PS/2 peripherals as required. Power on chassis and enter BIOS to configure boot sequence, memory and watchdog parameters. Install OS and VMIC VME drivers, run full board diagnostic before commissioning.

Interface

VME J1/J2 backplane connector, PCI-X PMC mezzanine site, SVGA video, DVI-D rear video, 10/100 RJ45 Ethernet, dual gigabit Ethernet, four serial ports, 4 × USB2.0, PS/2 keyboard/mouse, SATA / IDE via P2 rear I/O, optional VITA31.1 P0 interface.

Diagnostic

Board fails POST: faulty SODIMM memory, defective CPU chip, insufficient backplane power. VME communication timeout: poor backplane contact, missing bus termination, PCI-VME bridge hardware fault. Gigabit Ethernet no link: bad network cable, PHY chip damage, incorrect duplex configuration. Watchdog fails to trigger: wrong BIOS watchdog parameter setup.

Product Brief

VME7807RC VMIC 6U VME64 single board computer,Pentium M CPU,PCI-X PMC site and dual gigabit Ethernet,for rugged real-time simulation,turbine control and aerospace embedded VME chassis systems.