Difference between revisions of "All-in-One Android Touch Screen"

Latest revision as of 07:23, 19 June 2019

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1 Introduction

• All-in-One Android Touch Screen is designed and developed by FriendlyElec. It is a comprehensive solution with a 9" HD LCD and capacitive touch panel. It is based on FriendlyElec's Smart6818 CPU board which uses Samsung's octa-core Cortex-A53 S5P6818. Its frequency can scale up to 1.4Ghz. It has 1GB DDR3 RAM and 8GB eMMC flash.It has a power management unit which implements software power on/off and hardware wake-up functions.It integrates Wi-Fi, bluetooth, Gbps Ethernet and audio. It supports EC20 4G modules.Its display resolution is 1280 x 800. It has a capacitive touch panel. Its back-light is controllable via i2c. In addition it has popular interfaces such as I2C, SPI, RS232-UART, USB etc.These features make it a good platform for fast prototyping and industrial applications.

2 Hardware Spec

Features

• SoC: Samsung Octa-Core Cortex-A53 S5P6818
• Clock: Dynamic scaling from 400Mhz up to 1.4GHz
• DDR3 RAM: 1GB
• eMMC: 8GB
• Network: 1000/100/10M Ethernet(RTL8211E) with unique MAC address
• Wi-Fi/Bluetooth: onboard Wi-Fi Bluetooth (AP6212) with SMA antenna interface
• 4G: it works with EC20 4G modules via MiniPCIe interface. It supports only data service, no voice service. Onboard IPX to SMA interface available
• SIM Card Slot: pop-up MicroSIM card slot
• DVP Camera Interface: 24pin 0.5mm pitch FPC seat
• I2C: 2 x I2C interface, 2.0mm pitch PH-4A connector
• SPI/GPIO: 2 x SPI interface(SPI0,SPI1), 2.0mm pitch PH-6A connector. They can be used as GPIOs
• TTL Serial: 1 x 3-wire serial interface(UART0), 2.54mm pitch
• RS-232 Serial Port: 2 x 3-wire serial interface(UART3), 2.0mm pitch PH-4A connector
• USB Host: x 3, extended from a USB 2.0 hub (compatible with USB 1.1)
  1 x USB Type A interface,2 x 2.0mm pitch PH-4A connector
• USB Slave: x 1, MicroUSB, It only supports data transmission.
• Audio Input/Output: it supports audio recording and playing. 2.0mm pitch PH-4A connector
• Key: PWRKEY(power key), K1/K2/K3 programmable keys
• RTC Battery Seat: Onboard RTC battery seat(CR2032 battery)
• Buzzer: 1 x PWM buzzer. You need to short the buzzer pins with a jumper to enable it
• Other Resources: Onboard one 3-Axis Digital Accelerometer, one 3 x 2Pin 2.54mm pitch pin-header(including a pin for boot options: eMMC or MicroSD card. When it is set HIGH it will boot from eMMC otherwise boot from MicroSD), one RST, one PWRKEY and three GNDs
• Power Supply: DC 9V~15V/2A
• Dimension: 235.12 x 156.4(mm)

3 Board Dimension

• Schematic:[All-in-One Android Touch Screen schematic file in pdf format）]
• Schematic:[All-in-One Android Touch Screen schematic file，Capture 16.5 or above ]
• PCB: [All-in-One Android Touch Screen PCB file，Allegro 16.5 or above ]
• PCB dimension: [All-in-One Android Touch Screen PCB dimension file in dxf format]
• Datasheet: [HD900 Specification in pdf format]

4 Layout

• HD900(LVDS) Pin Spec

Pin#	Symbol	I/O	Function
1	VDD-C-TP	P	Power supply input for C-TP
2	GND-C-TP	P	Ground for C-TP
3	RST-C-TP	I	Reset C-TP
4	SCL	I	I2C Clock
5	SDA	I/O	I2C Data
6	INT	O	Interrupt pin
7	GND	P	Ground
8	GND	P	Ground
9	GND	P	Ground
10	VCOM	P	Common Voltage
11	VDD	P	Power Voltage for digital circuit
12	VDD	P	Power Voltage for digital circuit
13	RST GLOBAL	I	Global reset pin
14	STBYB	I	Standby mode
15	GND	P	Ground
16	RXIN0-	I	-LVDS differential data input
17	RXIN0+	I	+LVDS differential data input
18	GND	P	Ground
19	RXIN1-	I	-LVDS differential data input
20	RXIN1+	I	+LVDS differential data input
21	GND	P	Ground
22	RXIN2-	I	-LVDS differential data input
23	RXIN2+	I	+LVDS differential data input
24	GND	P	Ground
25	RXCLKIN-	I	-LVDS differential clock input
26	RXCLKIN+	I	+LVDS differential clock input
27	GND	P	Ground
28	RXIN3-	I	-LVDS differential data input
29	RXIN3+	I	+LVDS differential data input
30	GND	P	Ground
31	GND	P	Ground
32	DIMO	O	Backlight CABC controller signal output
33	SELB	I	6/8bit mode select
34	AVDD	P	Power for Analog Circuit
35	GND	P	Ground
36	LED-	P	LED Cathode
37	LED-	P	LED Cathode
38	L/R	I	Horiaontal inversion
39	U/D	I	Vertiacl inversion
40	VGL	P	Gate OFF Voltage
41	CABCEN1	I	CABC H/W enable
42	CANCEN0	I	CABC H/W enable
43	VGH	P	Gate ON Voltage
44	LED+	P	LED Anode
45	LED+	P	LED Anode

• DVP CAM Interface Pin Spec

Pin#	Name	Function
1, 2	SYS_3.3V	3.3V power output, to camera modules
7,9,13,15,24	GND	Gound, 0V
3	I2C2_SCL	I2C Clock Signal
4	I2C2_SDA	I2C Data Signal
5	GPIOE15	Regular GPIO, control signals output to camera modules
6	GPIOE14	Regular GPIO, control signals output to camera modules
8	MCLK	Clock signals output to camera modules
10	NC	Not Connected
11	VSYNC	vertical synchronization to CPU　from camera modules
12	HREF/HSYNC	HREF/HSYNC signal to CPU from camera modules
14	PCLK	PCLK signal to CPU from camera modules
16-23	Data bit7-0	data signals

5 Hardware Setup

• All-in-One Android Touch Screen has a BOOT pin-header which is used to set the system to boot from either TF card or eMMC:
  • BOOT not shorted---boot from eMMC
  • BOOT shorted by jumper---boot from TF card

Here is a hardware setup:

• Connect HD900:

6 Resources

• Schematic:[All-in-One Android Touch Screen schematic file in pdf format）]
• Schematic:[All-in-One Android Touch Screen schematic file，Capture 16.5 or above ]
• PCB: [All-in-One Android Touch Screen PCB file，Allegro 16.5 or above ]
• PCB dimension: [All-in-One Android Touch Screen PCB dimension file in dxf format]
• Datasheet: [HD900 Specification in pdf format]

7 Update Log

7.1 April-2-2019

1) Released English version

7.2 April-19-2019

1) Updated section 5