DEBIX BPC-iMX8MP-03 User manual

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BPC-iMX8MP-03 Industrial
Computer User Guide
Version: V1.0(2023-02)
Complied by: Polyhex Technology Company Limited（http://www.polyhex.net/）
BPC-iMX8MP-03 Industrial Computer is a ruggedized and protected computer. It is composed
of a DEBIX SOM A (core board), a DEBIX SOM A I/O board (carrier board) and a steel and
aluminum enclosure. It combines various types of harsh environment resistance features,
including ruggedness, dustproof, anti-vibration, shock resistance, wide temperature,
portability and other indicators.
Figure 1

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INDEX
Chapter 1 BPC-iMX8MP-03 Industrial Computer Introduction..................................................3
1.1. Overview of Industrial Computer.................................................................................4
1.2. Composition of Industrial Computer............................................................................7
1.3. External Interface of Industrial Computer................................................................... 8
1.3.1. Power Interface................................................................................................ 8
1.3.2. HDMI Interface................................................................................................. 9
1.3.3. Audio Interface..................................................................................................9
1.3.4. Ethernet Interface...........................................................................................10
1.3.5. USB Interface................................................................................................. 10
1.3.6. RS485/RS232/CAN Interface.........................................................................11
1.3.7. GPIO Interface............................................................................................... 13
1.3.8. LED and Key.................................................................................................. 14
1.4. Safety Precaution and Instruction.............................................................................15
Chapter 2 Getting started with BPC-iMX8MP-03 Industrial Computer................................... 18
2.1. Installation................................................................................................................. 18
2.2. Power on....................................................................................................................19
Chapter 3 Software Application Examples ...............................................................................20
3.1. Use of Ethernet..........................................................................................................20
3.2. Use of Wifi................................................................................................................. 22
3.3. Use of Bluetooth........................................................................................................24
3.4. Use of USB................................................................................................................25
3.5. Verification of RS485/RS232/CAN............................................................................28
3.6. Verification of DI/DO ..................................................................................................33
3.7. Verification of LED and Key...................................................................................... 35
3.8. Verification of RTC.....................................................................................................35

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Chapter 1 BPC-iMX8MP-03 Industrial
Computer Introduction
BPC-iMX8MP-03 Industrial Computer is a compact and secure computer, which designed for
industrial applications and can be widely used in machine vision and machine learning,
advanced multimedia, smart cities, edge computing and other solutions that require high
reliability.
Main features:
Stainless steel and aluminum enclosure with MTBF>50,000 hours
It encompasses a DEBIX SOM A and DEBIX SOM A I/O Board
Support boot from eMCC, Micro SD card and SPI NOR Flash
Support dual Gigabit Ethernet, 2.4GHz & 5GHz dual-band Wi-Fi, Bluetooth 5.0 and a Mini
PCIe 4G module/LoRa module/network card
Support 4 x USB 3.0, 2 x USB 2.0, physically isolated interfaces: 4 x RS232, 2 x
RS485/RS232/CAN, 4 x DI, 4 x DO
Support for Ubuntu, Android, Yocto, Windows 10 IoT

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1.1. Overview of Industrial Computer
Figure 2
Figure 3
BPC-iMX8MP-03 Industrial Computer uses DEBIX SOM A and DEBIX SOM A I/O Board
connection as the main board, which supports dual Gigabit Ethernet, three boot modes, shock
and vibration resistance, etc.. The specific specifications are as follows.

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System
Main Board
DEBIX SOM A + DEBIX SOM A I/O Board
Type
BPC-iMX8MP-03
Boot Mode
1) Support DEBIX SOM A board eMCC boot (default)
2) Support DEBIX SOM A I/O Board Micro SD card boot
3) Support DEBIX SOM A I/O Board SPI Nor Flash boot
OS
Ubuntu 20.04, Android 11, Yocto-L5.10.72_2.2.0, Windows 10 IoT
Enterprise
Storage
Onboard 16GB eMMC (8GB/32GB/64GB/128GB/256GB optional)
Communication
Ethernet
2 x Independent MAC RJ45 Gigabit Ethernet ports, both support
POE power supply (need to be equipped with POE power supply
module)
Wi-Fi & Bluetooth
2.4GHz & 5GHz dual-band Wi-Fi, Bluetooth 5.0, external Wi-Fi and
4G SMA antenna interface
Video & Audio
HDMI
1 x HDMI output, connector is Type A HDMI female
Audio
1 x headphone output and microphone input combo interface, the
connector is a 3.5mm socket
External I/O Interface
DC Block
1 x DC socket, supports 5.5mm x 2.1mm plug
USB 3.0
4 x USB 3.0 Host, the connector is double layer Type-A interface
USB 2.0
3 x USB 2.0 Host, the connector is Type-A interface
Serial Ports
1) 4 x physically isolated RS232, compatible with UART TTL 3.3V
without physical isolation
2) 4 x physically isolated RS485/RS232/CAN (RS485 by default),
compatible with UART TTL 3.3V without physical isolation

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GPIO
1) 4 x physically isolated DIs, supporting wet and dry nodes
2) 4 x physically isolated DOs, support wet nodes, compatible
with external relay dry nodes
LED & Key
1) 1 x System status indicator
2) 1 x Power status indicator
3) 1 x ON/OFF key
Internal I/O Interface
SIM Slot
1 x Micro SIM pop-up card slot
SD Slot
1 x Micro SD pop-up card slot
Mini PCIe
1) Support Mini PCIe 4G module, such as Quectel 4G module,
built-in SIM card
2) Support Mini PCIe LoRa module
3) Support Mini PCIe expansion modules, such as network card,
SATA card, serial port card
Power Supply
Power Input
Default DC 12V power input, support DC 12V~36V wide voltage
input
Mechanical & Environmental
Enclosure Material
Steel and aluminum alloy
Dimension
124mm(D) x 169.42mm(W) x 38.9mm(H)
Gross Weight
812g
Heat Dissipation
No fan, heat dissipation through the vent at the bottom of the
enclosure
CPU Temperature
-20 °C to 70 °C(Industrial grade)
Relative Humidity
10%~90%
MTBF
>50000 hours
Shock
15G half-sine 11ms duration

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1.2. Composition of Industrial Computer
Figure 4
BPC-iMX8MP-03 Industrial Computer assembly consists of these main components: DEBIX
SOM A + I/O Board, enclosure and antenna.
Figure 5 DEBIX SOM A + I/O Board
Vibration
1Grms random 5-500Hz hr/axis

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Figure 6 Enclosure and antenna
1.3. External Interface of Industrial Computer
1.3.1. Power Interface
There is 1 power connector (DC socket), with default DC 12V power input. As shown in the
figure below.
Figure 7

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1.3.2. HDMI Interface
There is an HDMI interface, and the connector is an A-type HDMI female socket, which is
used to connect a monitor, TV or projector. As shown in the Figure 8.
HDMI resolution up to 3840x2160p30. HDCP is not supported, audio supports 32 channel
audio, output supports 1 S/PDIF audio and eARC input support.
Figure 8
1.3.3. Audio Interface
There is a combined headphone and microphone input interface. The connector is a 3.5mm
socket, compatible with the built-in needle socket design, has audio input/output functions,
and supports rated voltage 1.5V MIC audio input. As shown in the Figure 9.
Figure 9
USB 3.0
HDMI

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1.3.4. Ethernet Interface
Two independent MAC RJ45 Gigabit Ethernet ports on board (Network port 1: LAN1, Network
port 2: LAN2), both support POE power supply (Additional POE power supply module is
required), connect DEBIX to the network through the network cable of the RJ45 connector,
and there is also a set of status indicators below the interface to display the signal, one is Link
and the other is Active.
Figure 10
LED
Color
Description
Active
Green
Light, the network cable is plugged in
Link
Yellow
Blinking, network data is being transmitted
1.3.5. USB Interface
BPC-iMX8MP-03 Industrial Computer has 2 USB controllers and PHY, supports USB 3.0 and
2.0. There are four USB 3.0 interfaces with dual-layer Type-A connectors on the front of the
enclosure (Figure 8) and two USB 2.0 interfaces with Type-A connectors on the rear of the
enclosure (Figure 11).
Active
Link
Active
Link

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1.3.6. RS485/RS232/CAN Interface
Note: The default configuration is an RS485 interface. RS485, RS232, and CAN on the same
socket, only one can be used at the same time.
Above the rear of the BPC-iMX8MP-03 Industrial Computer there is a row of 2 x
RS485/RS232/CAN interfaces compatible with the UART TTL 3.3V serial port without physical
isolation.
The lower row has 4 x RS232 interfaces, compatible with UART TTL 3.3V serial ports without
physical isolation.
Figure 11
The 2 x RS485/RS232/CAN pin sequence is as shown in the figures:
Figure 12
The 2 x RS485/RS232/CAN interface is defined as follows:
Pins
Definition
Description
Device node
1
RS485_A1/RS232_TXD
1/CAN1_H
RS485 differential signal line A/ RS232 sender/ CAN1
differential signal line H
/dev/ttyWCH0
2 x RS485/RS232/CAN
4 x RS232

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2
RS485_B1/RS232_RXD
1/CAN1_L
RS485 differential signal line B/ RS232 receiver/
CAN1 differential signal line L
3
GND
To ground
4
RS485_A2/RS232_TXD
2/CAN2_H
RS485 differential signal line A/ RS232 sender/ CAN2
differential signal line H
/dev/ttyWCH1
5
RS485_B2/RS232_RXD
2/CAN2_L
RS485 differential signal line B/ RS232 receiver/
CAN2 differential signal line L
6
GND
To ground
The 4 x RS232 pin sequence is as shown in the figures:
Figure 13
Function Name
IO Name
Description
Device node
COM1
RS232_RXD1
RS232 receiver
/dev/ttymxc3
RS232_TXD1
RS232 sender
COM2
RS232_RXD2
RS232 receiver
/dev/ttymxc2
RS232_TXD2
RS232 sender
COM3
RS232_RXD3
RS232 receiver
/dev/ttyWCH3
RS232_TXD3
RS232 sender
COM4
RS232_RXD4
RS232 receiver
/dev/ttyWCH2
RS232_TXD4
RS232 sender
The 4 x RS232 interface is defined as follows:

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Pins
Definition
Pins
Definition
1
NC
2
RS232_RXD
3
RS232_TXD
4
NC
5
GND
6
NC
7
NC
8
NC
9
NC
1.3.7. GPIO Interface
Above the rear of BPC-iMX8MP-03 Industrial Computer there is a GPIO interface with
isolated type (from left to right, DI interface, DO interface), physically isolated DI, supports dry
node input and wet node input. To the right of the DI interface is the DO interface, physically
isolated DO, supports wet node, and is compatible with external relay dry nodes.
Figure 14
The GPIO interface is defined as follows:
Pins
Definition
Pins
Definition
V
DO_PCOM
0
DI_1
1
DI_2
2
DI_3
3
DI_4
4
DO_1
5
DO_2
6
DO_3
7
DO_4
G
GND
GPIO

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DI electrical parameters:
Wet contact:
When the signal input voltage is 0~3V DC, the corresponding SOM A signal is low
level;
When the signal input voltage is 5~30V DC, the corresponding SOM A signal is high
level.
Dry contact:
Open state: high level
Short state with GND: low level
DO electrical parameters:
Node DO-PCOM supports a voltage range of 5~30V DC;
When the SOM A signal is low, the corresponding DO signal output voltage follows the
node DO-PCOM, the higher the node DO-PCOM voltage, the higher the DO signal output
voltage (compared with the node DO-PCOM, there is a 1~3V voltage drop);
When the SOM A signal is high level, the corresponding DO signal output voltage is 0.
1.3.8. LED and Key
On the rear of BPC-iMX8MP-03 Industrial Computer there are two LED indicators and a
power ON/OFF key, as shown in the figure below.
Figure 15
SYS
PWR
ON/OFF key

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LED and Key
Status
Description
SYS
Lighting
DEBIX works normally
off
DEBIX works abnormally
PWR
Lighting
Power is on
off
Power is off
ON/OFF button
Short press
Screen off/wake up
Long press
Power off/on
1.4. Safety Precaution and Instruction
The following messages inform how to make each cable connection. In most cases, you will
simply need to connect a standard cable.
Safety Instruction
To avoid malfunction or damage to this product please observe the following:
1．Disconnect the device from the DC power supply before cleaning. Use a damp cloth. Do
not use liquid detergents or spray-on detergents.
2．Keep the device away from moisture.

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3．During installation, set the device down on a reliable surface. Drops and bumps will lead to
damage.
4．Before connecting the power supply, ensure that the voltage is in the required range.
5．The air vent in the bottom of the enclosure is used for heat dissipation. To prevent the
device from overheating, don't cover the vents.
6．Carefully put the power cable in place to avoid stepping on it.
7．If the device is not used for a long time, power it off to avoid damage caused by sudden
overvoltage.
8．Do not pour liquid into the venting holes of the enclosure, as this could cause fire or
electric shock.
9．For safety reasons, the device can only be disassembled by professional personnel.
10．If one of the following situations occur, get the equipment checked by service personnel:
The power cord or plug is damaged.
Liquid has penetrated into the equipment.
The equipment has been exposed to moisture.
The equipment does not work well, or you cannot get it to work according to the
user's manual.
The equipment has been dropped and damaged.
The equipment has obvious signs of breakage.
11．Do not place the device in a place where the ambient temperature is below -20°C (-4°F)
or above 70°C (158°F). This will damage the machine. It needs to be kept in an environment
at controlled temperature.
12．Due to the sensitive nature of the equipment, it must be stored in a restricted access
location, only accessible by qualified engineer.

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DISCLAIMER: Polyhex disclaims all responsibility for the accuracy of any statement of this
instructional document.
Technical support and assistance
1. Visit Polyhex website http://www.polyhex.net/ where you can find the latest information
about the product.
2. Contact your distributor, sales representative or Polyhex’s customer service center for
technical support if you need additional assistance. Please have the following info ready
before you call:
Product name
Description of your peripheral attachments
Description of your software(operating system, version, application software, etc.)
A complete description of the problem
The exact wording of any error messages

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Chapter 2 Getting started with
BPC-iMX8MP-03 Industrial Computer
2.1. Installation
BPC-iMX8MP-03 Industrial Computer product list:
1 x WiFi antenna
1 x Power adapter
1 x DEBIX SOM A box
After receiving the product, install the accessories as follows.
1. Install the WiFi antenna to the WiFi antenna connection port as shown in the following
figure.
Figure 16
2. Connect the power adapter to the DC connector of enclosure (DC-IN connector as shown
above). When the SYS LED and PWD LED are on, it proves that the Industrial Computer
is powered on.
WiFi antenna
4G antenna(optional)

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Figure 17 Power adapter
2.2. Power on
Note: The factory default boot mode of BPC-iMX8MP-03 Industrial Computer is eMCC boot.
If you need to change to other boot modes, please contact our engineer for modification
before leaving the factory, and do not disassemble the machine by yourself.

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Chapter 3 Software Application Examples
3.1. Use of Ethernet
1. Query ip command.
ip a
As shown above: eth33 network card corresponds to the network port of the device silkscreen
"LAN1" (Figure 10, right side);
eth34 network card corresponds to the network port of the device silkscreen
"LAN2" (Figure 10, left side).
2. Apply ping command.
ping 192.168.1.18
3. Query the speed of the network port.