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Friendly ARM

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Introduction

The FriendlyARM Mini2440 is a single board computer based on a Samsung S3C2440 ARM9
microprocessor. The board measures 10 cm x 10 cm, ideal for learning about ARM systems or
integrating into numerous products.


SDRAM

There are two 32MByte chips (HY57V561620, 4Banks x 4MBit x 16bit) on the board. The two 16bit
chips form a 32bit data bus. Their physical start address is 0x30000000.


USB

The USB Host is a USB type A connector and the USB Device is a USB type B connector. For
communication control the USB Device has got an additional pin: USB_EN (GPC5).

LCD Interface

The board has got a 41 pin display connector (0.5mm pitch). All signals + a four-wire touch screen
interface are on the connector.
The jumper J2 is used for the LCD driver board power supply select signal, either 5V or 3.3V
supply.

FriendlyARM

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Introduction

The FriendlyARM Mini2440 is a single board computer based on a Samsung S3C2440 ARM9
microprocessor. The board measures 10 cm x 10 cm, ideal for learning about ARM systems or
integrating into numerous products.

Features

CPU
• Samsung S3C2440A (ARM920T), 400MHz, max. 533Mhz
RAM
• 64MByte SDRAM
• 32bit Bus
• 100MHz Clock
Flash
• 64MByte or 128MByte Nand Flash
• 2MByte Nor Flash with Bios
System Clock
• 12Mhz Crystal
LCD
• 4 wire resistive touch screen interface
• STN-Displays
• 4bit dual scan, 4bit single scan or 8bit single scan display type
• monochrome, 4 gray levels, 16 gray levels, 256 colors or 4096 colors
• Max: 1024x768
• TFT-Display
• 1, 2, 4 or 8 bpp palletized color displays
• 16 or 24 bpp non-palletized true-color displays
• Max: 1024x768, 64k colors
Interface and Resource
• 1 10/100M Ethernet RJ-45 (DM9000)
• 3 Serial Ports (1 RS232)
• 1 USB Host
• 1 USB Device
• 1 SD-Card Interface
• 1 Audio Output
• 1 Audio Input
• 1 Microphone
• 4 User LEDs
• 6 User Buttons
• 1 PWM Buzzer
• 1 Adjustable Resistance (for ADC testing)
• 1 I2C EEPROM
Power Supply
• 5V Connector
Dimension
• 10 x 10 cm
OS Support
• Linux 2.6
• Android
• Windows CE 5 and 6