Description

The MYD-JA5D4X Development Board is a complete evaluation platform for Atmel’s ARM Cortex-A5 based SAMA5D42 or SAMA5D44processor which is among the SAMA5D4 MPU series and can operate at up to 600MHz. Compared to the previous Cortex-A5 SoC from Atmel, the SAMA5D3, the SAMA5D4 brings a L2 cache, NEON, a slightly different clock tree, a hardware video decoder, and Trustzone support. The MYD-JA5D4X board is built around MYIR’s MYC-JA5D4X CPU Module and has a specific designed base board which takes full features of SAMA5D4 SOC to extend a rich set of peripherals and interfaces including serial ports, two USB Host ports, one Mini USB Device port, two 10/100Mbps Ethernet ports, RS485, TF card slot, Audio in/out, HDMI, LCD and more.

MYD-JA5D4X Development Board

The MYC-JA5D42 and MYC-JA5D44 CPU modules are sharing the same circuit design with only minor CPU feature difference. The Atmel SAMA5D44 can support 720p resolution hardware video decoder while the SAMA5D42 cannot. The MYC-JA5D4X has integrated the SAMA5D4 processor, 512MB DDR2, 512MB Nand Flash, 4MB Data Flash, 64KB EEPROM and Ethernet PHY on board. They are served as the core controller of the MYD-JA5D4X development board and connected to the base board through DDR2 SO-DIMM 200-pin connector. They can also be embedded into your products directly which can speed up your time to market.

MYC-JA5D4X CPU Module

SAMA5D4 Series Devices

The MYD-JA5D4X Development Board comes along with Linux 3.18 software packages, necessary cable accessories as well as detailed documents to enable quick start when getting the goods out of box. It is an excellent EVM (Evaluation Module) and a good reference design for extensively evaluation, fast prototyping and creating applications that require video playback, audio, mass storage, networking, connectivity and more. Typical applications are such as control panel/HMI, fitness equipment, smart grid infrastructure, communications gateways, imaging terminals, etc.

Features

Mechanical Parameters

• Dimensions: 153.92mm x 109.73mm (base board), 67.6mm x 45mm (CPU Module)
• PCB Layers: 4-layer design (base board), 8-layer design (CPU Module)
• Power supply: +5V/2A (base board), +3.3V/2A (CPU Module)
• Working temperature: 0~70 Celsius (commercial grade) or -40~85 Celsius (industrial grade)
  

OS Support

• Linux 3.18

The MYD-JA5D4X Controller Board (MYC-JA5D4X CPU Module)

Processor

• Atmel SAMA5D42, SAMA5D44
  - ARM® Cortex™-A5 processor, operates at up to 600MHz (945DMIPS)
  - 64-bit internal bus architecture and 32-bit DDR interface
  - L2 cache for improved overall system performance
  - Neon and floating-point unit (FPU) for high-precision computing and accelerated data processing
  - 720p hardware video decoder supporting H264/263, VP8, JPEG- CMOS image sensor interface and Dual EMAC 10/100 with IEEE1588 support

Memory

• 512MB (2*256MB) DDR2 SDRAM
• 512MB Nand Flash
• 4MB Data Flash
• 64KB EEPROM

Peripherals and Signals Routed to Pins

• On-board Ethernet PHY
• One power indicator (Red LED)
• One user LED (Blue)
• DDR2 SO-DIMM 200-pin connector brings out below peripheral signals:
  - 2 x Ethernet 
  - 3 x USB2.0 Host
  - 8 x Serial ports
  - 4 x TWI
  - 3 x SPI
  - 5 x 12-bit ADC
  - 1 x SMD
  - 4 x 4-bit SDIO
  - 1 x LCD
  - 1 x ISI
  - 7 x GPIOs

The MYD-JA5D4X Base Board

• Serial ports
  - 1 x 5-wire RS232 Debug serial port (DB9, J7, USART3)
  - 1 x 5-wire RS232 serial port (DB9, J8, USART4)
  -1 x RS485 (with isolation, J6)
• USB
  - 2 x USB2.0 Host ports
  - 1 x Mini USB2.0 Device port
• 2 x 10/100Mbps Ethernet interfaces
• 1 x TF card slot
• 1 x HDMI interface
• 1 x LCD interface (24-bit true color, supports optional 4.3-inch and 7-inch TFT LCD with resistive or capacitive touch screen)
• 1 x 4-wire touch screen interface
• 1 x ISI Camera interface (2.0mm pitch, 30-pin header, J23)
• 1 x Audio input port (3.5mm jack)
• 1 x Stereo Audio output port (3.5mm jack)
• 1 x MIC
• 1 x JTAG interface (2.54mm pitch, 20-pin connector, J16)
• 1 x battery backed RTC socket
• 4 x Buttons (1 x RESET, 1 x Wake Up, 1 x CS_BOOT, 1 x USER)
• 1 x 2.0mm pitch 30-pin expansion header (J22, GPIOs)
• 1 x 2.0mm pitch 20-pin expansion header (J21, 1 x TWI, 1 x SPI, 2 x UART, etc.)
• 1 x 2.0mm pitch 20-pin expansion header (J24, 2 x UART, 8 x secured IOs)
• 2 x LEDs

Software Features

MYIR has provided Linux software packages for the MYD-JA5D4X development board. Please see the features below:

Category	Name	Description	Source code provided
Boot loader	Bootstrap	First boot program, init RAM and load u-boot	yes
	U-boot	Secondary boot program, is responsible for system initialization and boot kernel 1. Support network to download images 2. Support settings, save the environment variable 3. Support memory content display, contrast, modify 4. Support bootcmd, bootargs	yes
Kernel	Linux 3.18	Custom for MYD-JA5D4X hardware	yes
Drivers	USB Host	USB Host driver, support OHCI and EHCI	yes
	USB Device	USB Device driver	yes
	Ethernet	Ethernet driver	yes
	MMC/SD	MMC/SD driver	yes
	Nand Flash	Nand Flash driver	yes
	I2C(TWI)	I2C driver	yes
	SPI	SPI driver	yes
	WDI	Watch Dog driver	yes
	LCD Controller	LCD driver, for 4.3 inch, 7 inch	yes
	RTC	RTC clock driver	yes
	Touch Screen	Resistive/capacitive touch screen driver	yes
	PWM	PWM (Pulse Width Modulation) driver	yes
	UART	Serial driver	yes
	ADC	ADC driver	yes
	LED	LED driver, GPIO LED and PWM LED	yes
	GPIO	GPIO driver	yes
	HDMI	HDMI driver	yes
Filesystem	rootfs	Base on build root	Bin
	rootfs-qt	Qt file system	Bin
Applications	Key&LED	Key&LED test program	yes
	NET	TCP/IP Sokect C/S test program	yes
	RTC	RTC clock testing experiment	yes
	I2C(TWI)	i2c-dev application interface demo	yes
	EEPROM	EEPROM Application interface demo	yes
	RS485	RS485 test program	yes
	RS232	RS232 test program	yes
	Audio	Audio test program	yes
	Framebuffer	Display demo	yes

 

Relative Download and Links

You can download relative chip datasheet, products datasheet, user manual, software package from below. Any inquiry, please contact MYIR.

 

1	ATMEL SAMA5D4 Flayer (Revision A)	496 KB
2	ATMEL SAMA5D4 Datasheet (Revision B)	6.9 MB
3	MYC-JA5D4X CPU Module Overview	605 KB
4	MYD-JA5D4X Development Board Overview	868 KB
5	MYC-JA5D4X Dimensions	70.3 KB
6	MYD-JA5D4X Base Board Dimensions	170 KB
7	Signals Rounted to SO-DIMM 200-pin Connector	186 KB