ELASTEL EG500 Mode d'emploi

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Edge Computing Gateway

EG500

Administrator Programming Guide

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Contents

1. Initial Driver Installation.....................................................................................................................3

1.1 Install Ethernet Port Driver ..............................................................................................3

1.2 Install commands .............................................................................................................3

2. Serial Port (RS232 and RS485)............................................................................................................4

2.1 PIN Definition and Wiring ................................................................................................4

2.2 Programming....................................................................................................................5

3. DI & DO...............................................................................................................................................6

3.1 PIN Definition and Wiring ................................................................................................6

3.2 Programming....................................................................................................................7

4. VI & AI ................................................................................................................................................9

4.1 PIN Definition and Wiring ................................................................................................9

4.2 Programming..................................................................................................................10

5. LED....................................................................................................................................................10

5.1 LED Definition.................................................................................................................10

5.2 Programming..................................................................................................................11

6. Cellular Module over Mini-PCIe 1....................................................................................................12

6.1 Module Installation........................................................................................................12

6.2 Dialing Programming......................................................................................................14

6.3 GPS Programming ..........................................................................................................15

7. WiFi ..................................................................................................................................................16

7.1 STA Mode .......................................................................................................................17

7.2 AP Mode.........................................................................................................................17

8. LoRaWAN Module over Mini-PCIe 2 ................................................................................................18

8.1 Module Installation........................................................................................................18

8.2 Driver installation...........................................................................................................19

9. WiFi HaLow ......................................................................................................................................21

9.1 Module Installation........................................................................................................21

9.2 Driver Installation...........................................................................................................22

9.3 How to Start in AP Mode ...............................................................................................22

9.4 How to Start in STA Mode..............................................................................................22

10. WDT (Watch Dog Timer) ................................................................................................................23

10.1 Block Diagram ..............................................................................................................23

10.2 How it works ................................................................................................................23

11. RTC (Real Time Clock).....................................................................................................................24

11.1 Block Diagram ..............................................................................................................24

11.2 Configuration ...............................................................................................................24

12. Bluetooth .......................................................................................................................................24

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1. Initial Driver Installation

1.1 Install Ethernet Port Driver

The Ethernet port labeled “LAN” on EG500 was bridged from PCIe by Realtek network chipset,

you may need install the Ethernet port driver to run it up.

$ cd ~

$ sudo apt-get update

$ sudo apt-get install raspberrypi-kernel-headers

$ git clone https://github.com/Elastel/r8168.git

$ cd r8168

$ sudo ./autorun.sh

1.2 Install commands

Also Elastel provide some prebuilt commands for I/O ports and others operating. They are,

Command Name

Usage description

read_di

Read the Digital input ports value

read_do

Read the Digital output ports value

write_do

Write the Digital output ports value

read_ai

Read the current type analog input value

read_vi

Read the voltage type analog input value

led_ctl

LED control

quectl-CM

The cellular module dialing program

Use below commands to install it.

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$ cd ~

$ git clone https://github.com/Elastel/elastel_command.git

$ cd elastel_command

$ chmod +x install.sh

$ sudo ./install.sh

2. Serial Port (RS232 and RS485)

2.1 PIN Definition and Wiring

Description

RS232 transmit line

RS232 receive line

GND

Ground (Reference potential)

RS485 difference line high

RS485 difference line low

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2.2 Programming

There are two individual serial ports in the system. The /dev/ttyACM1 for RS232 port, and

/dev/ttyACM0 for RS485 port. Use RS232 as an example.

$ python

>>> import serial

>>> ser=serial.Serial('/devttyACM1',115200,timeout=1)

>>> ser.isOpen()

true

>>> ser.write('1234567890')

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3. DI & DO

3.1 PIN Definition and Wiring

Interfaces

PIN Level of active

PIN of GPIO from BCM2711

DI0

HIGH

GPIO4

DI1

HIGH

GPIO17

DI2

HIGH

GPIO18

DI3

HIGH

GPIO27

DI4

HIGH

GPIO23

DI5

HIGH

GPIO24

COM

DO0

HIGH

GPIO22

DO1

HIGH

GPIO20

DO2

HIGH

GPIO13

DO3

HIGH

GPIO12

DO4

HIGH

GPIO16

DO5

HIGH

GPIO19

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DO_24V

DO_GND

3.2 Programming

Use DI0 as an example to test the DI function.

$ sudo -i #enable root account privileges

$ cd /sys/class/gpio

$ echo 4 > export #GPIO4 which is user of DO0

$ cd gpio4

$ echo in > direction

$ cat value # View the value of DI

Use DO0 as an example to test the DO function.

$ sudo -i #enable root account privileges

$ cd /sys/class/gpio

$ echo 22 > export #GPIO22 which is user of DO0

$ cd gpio22

$ echo out > direction

$ echo 1 > value # turn on the DO0, HIGH active

$ echo 0 > value # turn off the DO0

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Another way is using the Elastel prebuilt commands read_di, read_do, write_do to control

the interfaces. Examples as below:

$ sudo read_di

read_di <0|1|2|3|4|5>, eg: read_di 1

$ sudo read_di 0

DI0 = 0

$ sudo read_do

read_do <0|1|2|3|4|5>, eg: read_do 1

$ sudo read_do 0

DO0 = 1

$ sudo write_do

write_do <0|1|2|3|4|5> 1|0, eg: write_do 1 1

$ sudo write_do 0 0

success to write DO0:0

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4. VI & AI

4.1 PIN Definition and Wiring

Description

VI0+

Voltage type analog input channel 0 +

VI0-

Voltage type analog input channel 0 -

VI1+

Voltage type analog input channel 1 +

VI1-

Voltage type analog input channel 1 -

VI2+

Voltage type analog input channel 2 +

VI2-

Voltage type analog input channel 2 -

AI0

Current type analog input channel 0

AI1

Current type analog input channel 1

AI2

Current type analog input channel 2

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4.2 Programming

Use the Elastel prebuilt commands read_vi and read_ai to get the values of analog input value.

Examples as below:

$ read_vi

read_vi <0|1|2>; eg: read_vi 1

$ read_vi 0

VI0 = 0.009V

$ read_ai

read_ai <0|1|2>; eg: read_ai 1

$ read_ai 0

AI0 = 0.000mA

5. LED

5.1 LED Definition

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