14-07-2012, 02:18 PM
Friendly ARM
FriendlyARM.pdf (Size: 395.97 KB / Downloads: 29)
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.