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This is the third time that Witech updated their OK2440 development kit. As introduced by Witech, major improvment that are made on the OK2440-III include a 4MB Nor Flash, a IDE harddisk connector, a IIC EEPROM, and support for LVDS big size LCDs. On the software part, Witech upgraded WinCE5.0 to WinCE6.0 R3, and Embedded Linux to the latest 2.6.33 kernel for the OK2440-III development kit, Board Specific Pakcages and Software Development Kits are provided in source code, “These BSPs and SDKs are supposed to help customers a lot with shortening their development circle and reducing their Time-to-Market”, says Witech.
Touted as the “world’s fastest mobile CPU” when launched in 2003, the S3C2440 primarily targets handheld devices such as smartphones and PDAs. The SoC integrates 16KB each of instruction and data cache, 4KB RAM, a NAND flash boot loader, power management functions, an interrupt controller, and an external memory controller.
In addition to the powerful CPU, the OK2440-III comes with 64MB SDRAM, 4MB NOR Flash, and 256MB NAND Flash, which is expandable with a SD card slot and a IDE hard disk connector, and peripherial I/O including USB, serial connections, 100M Ethernet, audio, video (LCD, camera), etc..
Specifications of OK2440-III includes:
CPU: Samsung S3C2440A microcontroller, running @400MHz
Ram: 64mb Sdram
Flash: 256MB Nand Flash
Serial Ports:
• One 5-wire RS232 port, baud rate @ 115200bps
• One 3-wire serial port interface
Ethernet:
One 100M Ethernet with connection and transmission indicator, using DM9000
• One USB Host
• One USB Device
Audio:
One stereo audio output socket for earphone or speaker, using IIS interface chip UDA1341
Storage Interfaces:
• One SD card slot
• One IDE connector, can be used for connecting hard disk or as Bus expansion interface.
LCD&Touch Interface:
• On-board 4-wire resistive touch screen interface
• One 50-pin LCD connector
• Support black and white, 4 level grayscale, 16 level grayscale, 256-color, 4096-color STN LCD
• On-board 3.3V/5V power output interface for variety LCD models.
• Supports up to 10.4″ LCD, LVDS interface
Camera connector:
One 20p 2.0mm pitch camera connector
Clock source:
Internal real time clock
Reset Circuit:
One reset button with specific reset circuit
JTAG Interface:
One 20pin Multi-ICE JTAG interface, supporting SDT2.51, ADS1.2
Power Supply:
5V power supply with power switch and indicator
Others:
• Five user buttons
• Four user LEDs
• One PWM-controlled buzzer
• One adjustable resistance connected to ADS pins for A/D conversion verification
• One temperature sensor
• One infrared receiver
• One expansion interface, containing SPI/GPIO and I2C, etc.
Availability
The OK2440-III development kit is available now for US$82, add-on parts available for the OK2440-III includes 3.5” LCD, 4.3” LCD, 5.6” LCD, 7” LCD, 8” LCD, CMOS camera, WIFI, GPS, GPRS. More information may be found at the Witech official website www.arm9board.net.
