4.27.1. 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

4.27.1.1. 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.