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MYS-SAM9G45 (Atmel SAM9G45) (1)

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MY-WF004S SDIO WiFi Module (1)

MY-UART012U Convertor (1)

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MY-EVC5100S-HMI (TI AM335x) (1)

          Products >  Discontinued Products >  MYS-SAM9G45 (Atmel SAM9G45) > MYS-SAM9G45 Single Board Computer
MYS-SAM9G45 Single Board Computer

MYS-SAM9G45 Single Board Computer

- 400MHz Atmel AT91SAM9G45 ARM9 Processor
- 128MB DDR2 SDRAM, 256MB Nand Flash, 4MB Data Flash, 512KB EEPROM
- UARTs, USB, Ethernet, LCD, TF, Audio
- Complete MDK-ARM Sample Codes
- Ready-to-Run Linux 2.6.30 and Android 2.3.1 OS
- Optional 4.3 or 7 inch LCD

The MYS-SAM9G45 Single Board Computer is highly-integrated controller board for Atmel AT91SAM9G45 which is a 400MHz ARM926 based embedded microprocessor with DDR2 and LPDDR support, a wide range of connectivity and user interface peripherals, as well as a dual external bus interface.

Measuring 100mm by 64mm, the compact board takes full features of the Atmel SAM9G45 processor. It has 128MB DDR2 SDRAM, 256MB Nand Flash, 4MB Data Flash and 512KB EEPROM on board and exposes many peripheral interfaces including two USB Host and one OTG, Ethernet, LCD, TF, Audio, etc. The board supports running Linux 2.6.30 and Android 2.3.1 operating systems and is delivered with driver source code to help users create their own application. MYIR also offers detailed documents as well as some necessary cable accessories along with the goods delivery which help user to start their development quickly.

The MYS-SAM9G45 SBC board is smart in size and advanced in PCB design, it’s easy to embed into your products directly which will help cut down cost and reduce time. It can be used for a wide range of applications including Industrial Control Terminal, Intelligent Instrumentation, Data Acquisition and Analysis, Medical products, Network Terminal, etc.



  • Atmel AT91SAM9G45 ARM926EJ-S processor
    - 32-bit ARM RISC processor running at up to 400MHz
    - 32KB Data Cache, 32KB Instruction Cache with MMU
    - 64KB Chip SRAM, 64KB ROM

Memory and Storage

  • 128MB DDR2 SDRAM, 256MB Nand Flash,4MB Data Flash and 512KB EEPROM
  • 1 x Micro SD Card slot

Peripheral Interfaces

  • One RS232 serial port
  • One LCD interface (support 24-bit true color, resolution up to 1280 x 860)
  • One 4-wire touch screen interface
  • USB
    - 2 x High-speed USB 2.0 Host port
    - 1 x High-speed Mini USB 2.0 OTG port
  • One 10/100Mbps Ethernet
  • One Audio input port (3.5mm Jack)
  • One stereo Audio output port (3.5mm Jack)
  • RTC Battery socket
  • One 14-pin JTAG interface
  • One power indicator (Red LED)
  • One User LED (Blue)
  • Two buttons (one for Reset, one for WakeUp)
  • Four expansion interfaces

Mechanical Parameters

  • Dimension:  100mm x 64mm
  • PCB layers:  8-layer design
  • Power supply: 5V/2A or USB power supply
  • Working Temp.: 0~70 Celsius (commercial level) or -40~85 Celsius (industrial level)

OS support and Sample codes

  • Linux 2.6.30
  • Andriod 2.3.1
  • Keil MDK-ARM example code

Hardware Specification

CPU AT91SAM9G45 (ARM926EJ-S) working at 400MHz

On-chip: 64KB SRAM, 64KB EEPROM

External 256MB Nand Flash, 4MB Data Flash, 128MB DDR2 SDRAM

Debug 14-pin, 1.27mm JTAG debug interface
periphery Type Qty Description
COM 1 Support RS232
ethernet 1 100Mbps, DM9161AEP
USB 2 Support  USB HOST 2.0 x1 1xUSB OTG 2.0
Audio 2 Audio In/out
SD interface 1 SD/MMC interface
Display 1 LCD interface
Extension 2 Extension for customer
JTAG 1 Standard 14 pin JTAG interface
Button User button 1 User button
RESET 1 Reset button

5V/2A power supply

Software Features


Name Description
Bootloader AT91Bootstrap Guide Uboot
Uboot Version: UBoot1.3.4
1. NandFlash erase/read/write
2. Support network download image 3.Configure, save setting bootm,bootargs setting
Kernel and device driver System clock System frequency:400MHz
Display driver Support4.3’’ LCD
Touchscreen Touch screen
DM9000 DM9000 ethernet driver
NANDFLASH Nandflash driver
SERIAL Com driver
USB Host Support USB keyboard, mouse, U-disk
DMA DMA driver
SPI SPI driver
IIC I2Cdriver
USB Gadget USB Gadget driver
Jffs2 file system Support jffs2 file system
Cross compile arm-none-linux-gnueabi Cross compile tools chain
PC Software SAM-BA1.13+USB SAM-BA download kernel into board Nanflash via USB

MDK-ARM Sample Code
Name Description
NandFlash NandFlash operation
fatfs File system operation
filesystem The implement of source-open FAT file system
datafalsh SPI with dataflash
twi-eeprom Access EEprom by TWI
rtt Timer
rtc Real time clock


Content Name Description
Boot code AT91Bootstrap Uboot

Uboot NandFlash read/write image by ethernet
4.Supportmemory display, compare and modify 5. support bootm,bootargs setting.
Android Android 2.3.1
Device driver Ethernet Ethernet driver
LCD+Touch LCD and touch panel driver
MMC/SD MicroSD driver
SPI SPI driver
TWI(I2C) Two Wire Interface(I2C)driver
DMA DMA driver
GPIO GPIO driver
File system Android file system


MYS-SAM9G45 Single Board Computer

MYS-SAM9G45 Single Board Computer with LCD (4.3" or 7" LCD)

MYD-SAM9G45 SBC Board With connector

MYS-SAM9G45 Single Board Computer with JTAG and UART conversion board

Price and Ordering


Part No.

Unit Price


MYS-SAM9G45 Single Board Computer



Out of Stock

MY-LCD43TP 4.3-inch LCD Module with resistive touch screen



MY-LCD70TP 7-inch LCD Module with resistive touch screen



Packing List

NO. Item Qty


1 MYS-SAM9G45 board 1pc

MYS-SAM9G45 single board computer

2 Ethernet cable 1pc

3 USB Cable 1pc

Micro USB

4 Serial cable 1pc

DB9 to DB9

5 Conversion board


JTAG and UART conversion board
6 DVD 1pc

user manual, schematic in PDF format, datasheet, software package

More FAQ >>

1. MYS-SAM9G45 root directory capacity only shows 64MB

I'm using the MYS-SAM9G45 board under Linux. But found the root directory capacity is only 64MB when using the df -h command. So 256MB Nand Flash seems lost much space for using. How to solve the problem then?


Hello, that's because the much space of the MYS-SAM9G45 is as user space which has not been mounted. User may need to mount it himself and then it can be used. You can follow below ways:

1. Please use text editor to open the file "at91sam9g45ekes_demo_linux_nandflash.tcl" before the system auto-programming;

2. Go to the location roughly in the 84th line, the contents are as below:

"bootargs=mem=128M console=ttyS0,115200 mtdparts=atmel_nand:5M(bootstrap/uboot/kernel)ro,64M(rootfs),-(data) root=/dev/mtdblock1 rw   rootfstype=jffs2" \

Please change 64M to 200M and note do not change to 256M as part of the space will be used for uboot and system.

"bootargs=mem=128M console=ttyS0,115200 mtdparts=atmel_nand:5M(bootstrap/uboot/kernel)ro,64M(rootfs),-(data) root=/dev/mtdblock1 rw   rootfstype=jffs2" \

3. Re-programming

4. It will be as following if successful.

root@at91sam:~$ df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/mtdblock1          200.0M     31.8M    168.3M  16% /
tmpfs                    40.0k         0     40.0k   0% /mnt/.psplash
/dev/mtdblock1          200.0M     31.8M    168.3M  16% /dev/.static/dev
tmpfs                     2.0M     48.0k      2.0M   2% /dev
tmpfs                    61.5M     92.0k     61.4M   0% /var/volatile
tmpfs                    61.5M         0     61.5M   0% /media/ram

More FAQ >>