Differences between stamp holes and connector versions of Xunwei 4418/6818 development boards

size

50mm*60mm

PCB Layers

6-layer PCB immersion gold design

8-layer PCB immersion gold design

high

Core board connector combination height 1.5mm

0

4418 CPU

ARM Cortex-A9 Quad-core S5P4418 processor 1.4GHz

ARM Cortex-A9 Quad-core S5P4418 processor 1.4GHz

6818 CPU

ARM Cortex-A53 octa-core S5P6818 processor 1.4GHz

ARM Cortex-A53 octa-core S5P6818 processor 1.4GHz

Memory

1GB DDR3 (2GB optional)

1GB DDR3

storage

16GB EMMC

16GB EMMC

Power Management

AXP228 (official recommended best match), supports dynamic frequency modulation, ultra-low power consumption

AXP228 (official recommended best match), supports dynamic frequency modulation, ultra-low power consumption

Operating Voltage

DC 5V power supply

DC 5V power supply

System Support

Android 4.4/5.1.1/7.1, Linux 3.4.39, QT 2.2/4.7/5.7, Ubuntu 12.04

Android 4.4/5.1.1/7.1, Linux 3.4.39, QT 2.2/4.7/5.7, Ubuntu 12.04

Operating temperature

-25°C to +80°C

-25°C to +80°C

Lead angle extension

Four connectors with a total of 320 PINs

208 PIN pins

Extended Parameters

LCD: 24-bit RGB 888, can be selected according to screen requirements;
LVDS: 4 channels, configurable;

HDMI:v1.4;

MIPI: One DSI and one CSI, supporting LCD and CAMARA;

DVP: Supports DVP format parallel port cameras;

SDIO: 3 (1 is occupied);

USB_HOST: 1, 3 expansion ports on the baseboard;

USB_OTG: 1, the baseboard is used as DEV;
USB_HSIC: 1;

UART: 6 channels;
I2C: 3 channels, can be used for touch screen, etc.;
SPDIF: 1 channel;
GPIO: most of them have been brought out;
SPI: 3 channels;
Ethernet: 1 adaptive Gigabit;
PWM: 3 channels, can be used for backlight control;
Lithium battery charging and discharging: brought out, can be used directly (with fuel gauge);
ADC: 7 analog inputs;
JTAG: 1 channel;

LCD: 24-bit RGB 888, can be selected according to screen requirements;
LVDS: 4 channels, configurable;

HDMI:v1.4;

MIPI: One DSI and one CSI, supporting LCD and CAMARA;

DVP: Supports DVP format parallel port cameras;

SDIO: 3 (1 is occupied);

USB_HOST: 1, 2 baseboard expansions;

USB_OTG: 1, the baseboard is used as host/device;
UART: 6 channels;
I2C: 3 channels, can be used for touch screen, etc.;
SPDIF: 1 channel;
GPIO: most of them are brought out;
SPI: 3 channels;
Ethernet: 1 channel adaptive 10/100/1000

;
PWM: 3 channels, can be used for backlight control;
Lithium battery charging and discharging: lead-out, can be used directly (with fuel gauge);
ADC: 7 analog inputs;

size

Base plate: 125mm * 190mm

Base plate: 125mm * 190mm

PCB Layers

4-layer PCB design

4-layer PCB design

EEPROM

4MB EEPROM for storing key data

4MB EEPROM for storing key data

POWER

DC power input interface, 5V/2A power input

DC power input interface, 5V/2A power input

Charge and discharge interface

1, can be connected to ordinary lithium battery, with fuel gauge

1, can be connected to ordinary lithium battery, with fuel gauge

SWITCH

Power interface

Power interface

DIP SWITCH

3-position dip switch

3-position dip switch

AD

support

support

JTAG interface

1

none

CAMERA interface

1 DVP (supports 5-megapixel cameras); 1 MIPI;

1 DVP (supports 5-megapixel cameras); 1 MIPI;

GPIO/CAN/RS485 interface

1 CAN 1 RS485 interface

1 CAN 1 RS485 interface

SDIO/GPIO

none

1 way 20pin

User Key

6 function buttons

6 function buttons

IRDA

1 infrared integrated receiver

1 infrared integrated receiver

MIC

Support MIC input

Support MIC input

PHONE

Support headphone output

Support headphone output

Serial Port

2 232 serial ports, and 2 TTL serial ports for Bluetooth and GPS

2 232 serial ports, and 2 TTL serial ports for Bluetooth and GPS

USB Host

3-way USB Host, support USB2.0 protocol

2-way USB Host, support USB2.0 protocol

TF Card

1 standard TF card interface

1 standard TF card interface

4G module

Full network access (optional)

Full network access (optional)

WIFI module

Support (S500M)

Support (RTL8723)

GPS Module

Support (optional)

Support (optional)

Network port

Gigabit Ethernet interface

Gigabit Ethernet interface

LCD Interface

1 LVDS interface, 1 RGB interface

1 LVDS interface, 1 RGB interface

MIPI interface

1-channel screen connected to MIPI interface

1-channel screen connected to MIPI interface

HDMI interface

Standard HDMI v1.4, 1080p HD resolution output interface

Standard HDMI v1.4, 1080p HD resolution output interface

USB OTG

1-way USB OTG 2.0

1-way USB OTG 2.0

RTC Block

1

1

Multimedia Coding

Supports multiple audio formats including H.263, H.264, MPEG, etc.

Supports multiple audio formats including H.263, H.264, MPEG, etc.