1 Introduction

The Mini2451 development board is an ARM9 embedded processing board that uses ...    More ...

1 Introduction

The Mini2451 development board is an ARM9 embedded processing board that uses the Samsung S3C2451 System On Chip (SOC). Its highest frequency is 533MHz. As a successor of the Mini2440 its ports,interfaces and layout is almost 99% compatible with the Mini2440. In addition, compared to the Mini2440 the Mini2451 has a better power system and overall design therefore it can avoid strong electrical interference and extreme temperature fluctuations. These features make it fit the most needs of outdoor applications.
Compared to the Mini2440 the Mini2451 runs much faster and can work with larger RAMs. It has four serial ports. Its USB supports USB2.0. The 2451 supports SD card booting and therefore we developed a Superboot-2451 which enables installing OS via an SD card.
1.1 Mini2451 Board
Here is a Mini2451’s photo. FriendlyARM Mini2451 S3C2451 ARM9 Board CPU processor
Samsung S3C2451, based on ARM926EJ, running at 400MHz, up to 533Mhz
DDR2 RAM
Size: 128MB @ 133Mhz
16bit data bus
FLASH memory
Standard 256M SLC NAND Flash
Optional 1GB SLC NAND Flash
LCD Display
LCD: 41Pin, 1.0mm pitch , compatible Mini2440/Mini6410/Mini210S LCD display, 1-wire touch
LCDs can be supported from 3.5 inches to 12.1 inches , up to 1024×768 pixel screen resolution
Network
10/100M adaptive Ethernet RJ45 interface (using DM9000AEP)
Standard interface resources
Five-wire serial interface RS232 DB9 type ( another four TTL level serial )
MiniUSB 2.0 Interface
3.5mm stereo audio output interface, a microphone input channel on the board
USB Host 1.1 Interface
pop- SD card
5V DC voltage input : Interface Block Model DC-23B
Resources
I2C-EEPROM chip (256byte), mainly used for testing the I2C bus
4 user LED green)
4 user buttons (interrupt – based)
An adjustable resistance for ADC conversion test
PWM control buzzer
Onboard real-time clock backup battery
External expansion interface resources
4 Serial: TTL level , 2.0mm pitch;  three -wire serial interface
JTAG interface : 10 pin 2.0mm pitch
LCD Interface : 41pin 1.0mm pitch SMT (LVDS Style)
SDIO interface : 20 pin 2.0mm pitch, can be used wtih SD WiFi, also contains SPI,  IIC, 1 serial port, etc.
A CMOS camera interface : 20 pin 2.0mm pitch can be extended outside CCD camera
A GPIO interface: 34pin, 2.0 mm pitch, including the AD inputs, an interrupt pin, I2C, SPI, PWM, 5V & 3.3V power supply
Size
Size: 100 x 100 (mm)
Software
Superboot-2451
Linux-3.6 + Qtopia-2.2.0/Qt-4.8.5
Bare metal tutorial ( forthcoming support )
uC/OSII ( forthcoming support ), U-boot FriendlyARM Mini2451 S3C2451 ARM9 Board FriendlyARM Mini2451 S3C2451 ARM9 Board FriendlyARM Mini2451 S3C2451 ARM9 Board    
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