1. DIGI a9m2440

This CPU card is based on a Samsung S3C2440 CPU. The card is shipped with:

• S3C2440@400 MHz or 533 MHz (ARM920T/ARMv4T)

• 16.9344 MHz crystal reference

• SDRAM 32/64/128 MiB

  • Samsung K4M563233E-EE1H (one or two devices for 32 MiB or 64 MiB)
    • 2M x 32bit x 4 Banks Mobile SDRAM
    • CL2@100 MHz (CAS/RAS delay 19ns)
    • 105 MHz max
    • column address size is 9 bits
    • Row cycle time: 69ns
  • Samsung K4M513233C-DG75 (one or two devices for 64 MiB or 128 MiB)
    • 4M x 32bit x 4 Banks Mobile SDRAM
    • CL2@100MHz (CAS/RAS delay 18ns)
    • 111 MHz max
    • column address size is 9 bits
    • Row cycle time: 63ns
  • 64ms refresh period (4k)
  • 90 pin FBGA
  • 32 bit data bits
  • Extended temperature range (-25°C...85°C)

• NAND Flash 32/64/128 MiB

  • Samsung KM29U512T (NAND01GW3A0AN6)
    • 64 MiB 3,3V 8-bit
    • ID: 0xEC, 0x76, 0x??, 0xBD
  • Samsung KM29U256T
    • 32 MiB 3,3V 8-bit
    • ID: 0xEC, 0x75, 0x??, 0xBD
  • ST Micro
    • 128 MiB 3,3V 8-bit
    • ID: 0x20, 0x79
  • 30ns/40ns/20ns

• I2C interface, 100 KHz and 400 KHz

  • Real Time Clock
    • Dallas DS1337
    • address 0x68
  • EEPROM
    • ST M24LC64
    • address 0x50
    • 16bit addressing

• LCD interface

• Touch Screen interface

• Camera interface

• I2S interface

• AC97 Audio-CODEC interface

• SD card interface

• 3 serial RS232 interfaces

• Host and device USB interface, USB1.1 compliant

• Ethernet interface

  • 10Mbps, Cirrus Logic, CS8900A (on the CPU card)

• SPI interface

• JTAG interface

1.1. How to get the binary image

Configure with the default configuration:

make ARCH=arm a9m2440_defconfig

Build the binary image:

make ARCH=arm CROSS_COMPILE=armv4compiler

NOTE: replace the armv4compiler with your ARM v4 cross compiler.