Edge-RT300
From FriendlyELEC WiKi
Contents
1 Introduction
- The Edge-RT300 is designed and developed by FriendlyELEC for professional and enterprise users. It is based on SOM-4418.
- The Edge-RT300 has rich interconnection interfaces, including dual RJ45 ethernet ports, Wi-Fi, BT, 4G, RS-485 and M-BUS master, which makes it suitable for IoT applications.
2 Hardware Spec
- CPU Board: SOM-4418
- SoC:Samsung S5P4418 Quad Core Cortex-A9 with dynamic frequency scaling up to 1.4G Hz
- System Memory:1GB 32bit DDR3 RAM
- eMMC:8GB
- Connectivity:
- One 10/100/1000Mbps Ethernet Port (Native MAC, PHY is RTL8211E) with unique MAC, support WOL(Wake On Lan)
- One 10/1000Mbps Ethernet Port (USB to LAN, RTL852B)
- One MiniPCIe Socket & MicroSIM Card Slot for 4G module
- One 802.11b/g/n Wi-Fi & Bluetooth 4.0 (AP6212)
- One TTL to RS-485 converter
- One TTL to wired M-BUS Master converter
- Video Input: MIPI-CSI
- Video Output: LVDS
- Audio: 2-Chanel headphone output, one Microphone input
- USB: 1 x USB 2.0 Host(Via USB Hub), 1 x USB 2.0 OTG
- LED: 1 x power LED , 2 x User LED
- Key: 1 x User Key, PowerKey, Reset key, SD/MMC Boot Select key
- Other Resource: 1 x MicroSD, RTC battery input, 2-pin ZH connector for 5V cooling fan
- Power: DC 12V/2A
- PCB: Four Layer, 96 mm x 90 mm x 1.6mm
- Working Temperature: -40℃ to 70℃
3 Detailed description
3.1 RS-485&M-BUS
Connector Pitch: 3.5mm
Pin# | 1 | 2 | 3 | 4 | 5 | 6 |
---|---|---|---|---|---|---|
Name | 12V | GND | A | B | L1 | L2 |
Description | 12V Power input(optional) | GND | RS-485 A | RS-485 B | M-BUS L1 | M-BUS L2 |
' RS-485
- Use SN65HVD3082EDR RS-485 Transceivers, support 1/8 Unit Load—Up to 256 Nodes on a Bus, Bus-Pin ESD Protection Up to 15 kV.
- Connetected to UART2.
M-Bus Master
- Connetected to UART3.
- support up to 40 slaves.
- about M-bus, refer to https://m-bus.com/documentation
3.2 MIPI-CSI&Audio
Pinout
Pin# | Name | Description |
---|---|---|
1 | 3.3V out | 3.3V Power Output |
2 | 3.3V out | 3.3V Power Output |
3 | GND | Ground |
4 | I2C0_SDA | I2C bus0 data |
5 | I2C0_SCL | I2C bus0 clock |
6 | GND | Ground |
7 | AUDIO_GND | Audio Common terminal |
8 | HP_R | Headphone output R |
9 | HP_L | Headphone output L |
10 | MICIN_P | Microphone input P |
11 | GND | Ground |
12 | GPIOB23 | GPIO |
13 | GPIOC2 | GPIO |
14 | GPIOC13/PWM1 | GPIO or PWM |
15 | GND | Ground |
16 | GPIOB27/HP_DETECT | GPIO, or Headphone insert detect |
17 | /NC | |
18 | GND | Ground |
19 | /NC | |
20 | /NC | |
21 | GND | Ground |
22 | MIPI_CSI0_D1N | MIPI CSI Data0 |
23 | MIPI_CSI0_D1P | |
24 | GND | Ground |
25 | MIPI_CSI0_D0N | MIPI CSI Data1 |
26 | MIPI_CSI0_D0P | |
27 | GND | Ground |
28 | MIPI_CSI0_CLKN | MIPI CSI Clock |
29 | MIPI_CSI0_CLKP | |
30 | GND | Ground |
3.3 LVDS
Pin# | Name | Description |
---|---|---|
1 | 5V | 5V Power output |
2 | 5V | 5V Power output |
3 | 5V | 5V Power output |
4 | LVDS_Y0M | LVDS D0- |
5 | LVDS_Y0P | LVDS D0+ |
6 | GND | Ground |
7 | LVDS_Y1M | LVDS D1- |
8 | LVDS_Y1P | LVDS D1+ |
9 | GND | Ground |
10 | LVDS_Y2M | LVDS D2- |
11 | LVDS_Y2P | LVDS D2+ |
12 | GND | Ground |
13 | LVDS_CLKM | LVDS Clock- |
14 | LVDS_CLKP | LVDS Clock+ |
15 | GND | Ground |
16 | LVDS_Y3M | LVDS D3- |
17 | LVDS_Y3P | LVDS D3+ |
18 | GND | Ground |
19 | /NC | |
20 | GND | Ground |
21 | LCD_SCL | for touch pannel,and backlight control,etc |
22 | LCD_SDA | |
23 | LCD_TPINT | |
24 | GND | Ground |
3.4 USB Host
- The 10/100Mbps USB-LAN, MiniPCIe and USB Type-A share the USB 2.0 480Mbps bandwidth.
3.5 User LEDs
LED LED1 LED2 GPIO GPIOB30 GPIOB31 ON logic 0 0
3.6 User Key
- This key is connected to AliveGPIO3 of the SoC.
3.7 RJ45 Ethernet
- 10/100/1000Mbps Ethernet support WOL(Wake On Lan) function. The following steps shows how to enable this function.
a) disable NetworkManager first b) install ethtool c) add following lines to /etc/network/interfaces
{{auto eth0 iface eth0 inet dhcp ethernet-wol g}}
3.8 debug console
- The baud rate is 115200bps.
3.9 Power Supply
Load to MiniPCIe USB Type-A USB OTG LVDS MIPI-CSI&Audio Output Voltage 3.5V 5V 5V 5V 3.3V Recommended Load 2A 0.5A 0.5A 0.3A 0.3A Max allowed Load 3A 1A 1A 0.5A 0.5A 10W Max totally