Description

The MYD-IMX28X Development Board designed by MYIR is a cost-effective and power-efficient ARM Evaluation Kit (EVK) for Freescale i.MX28 family of multimedia applications processors which has an ARM926EJ-S Core, with speed up to 454 MHz. The board can support running Linux operating systems, which allows developers to use it as an i.MX28 reference platform to quickly start their own design. The board takes full features of the i.MX28 ARM processor and has exposed a comprehensive set of peripherals and connectivity options to make the board suitable for smart gateways, human-machine interfaces (HMIs), handheld devices, scanners, portable medical, experimental education and more other industrial applications.

The MYD-IMX28X Development Board is using the MYC-IMX28X CPU module as the heart of the system which is an ARM9-based system-on-module (SOM) integrated with the i.MX28 processor, 128MB DDR2 SDRAM, 256MB Nand Flash and Ethernet PHY. It is connected to the base board through two 1.27mm pitch 80-pin connectors. The base board has extended many peripherals and interfaces through headers and connectors, featuring 1 x RS232, 1 x Debug, 2 x USB ports, up to 2 x Ethernet, 2 x CAN, 1 x RS485, TF, Audio, LCD, JTAG, etc.

MYIR offers the board with Freescale i.MX283 or i.MX287 ARM9 CPU by default; user can integrate a different MYC-IMX28X CPU module on the same base board, thus making two variants of i.MX28 evaluation boards.

MYD-IMX283 Development Board – with MYC-IMX283 CPU Module for Freescale i.MX283

MYD-IMX287 Development Board – with MYC-IMX287 CPU Module for Freescale i.MX287

The MYD-IMX283 and MYD-IMX287 boards only have a few differences as described in below table:

Features

Mechanical Parameters

• Dimensions: 140mm x 90mm (base board), 62mm x 38mm (CPU Module MYC-IMX28X)
• PCB Layers: 4-layer design (base board), 6-layer design (CPU Module MYC-IMX28X)
• Power supply: +5V
• Working temperature: -40~85 Celsius (industrial grade)
  

The MYD-IMX28X Controller Board (MYC-IMX28X CPU Module)

                                         MYC-IMX28X Top-View                                                                      MYC-IMX28X Bottom-View

Processor

• Freescale i.MX283, i.MX287 Applications processor
  - Up to 454MHz ARM926EJ-STM core with 16KB/32KB I and D Cache
  - 128 kbytes of integrated low-power on-chip SRAM
  - 128Kbytes of integrated mask-programmable on-chip ROM
  - 1280 bits of on-chip one-time-programmable (OCOTP)ROM
  - 16-bit mobile DDR (mDDR) (1.8V),DDR2 (1.8V) and LV-DDR2 (1.5V), up to 205MHz DDR clock frequency with voltage overdrive
  - Support for up to eight NAND Flash memory devices with up to 20-bit BCH ECC

Memory

• 128MB DDR2 SDRAM
• 256MB Nand Flash
• 128KB SPI Data Flash

Peripherals and Signals Routed to Pins

• On-board Ethernet PHY
• One power indicator (Red LED)
• One user LED (Blue)
• Two 1.27mm pitch 2 x 40-pin SMT male expansion connectors can carry out interfaces below:
  - Ethernet (two for i.MX287, one for i.MX283)
  - 2 x USB2.0 OTG ports
  - Up to 4 x Serial ports
  - 1 x I2C
  - 2 x SPI
  - Up to 8 x ADC (one high-speed ADC, seven low-resolution ADC)
  - Up to 5 x PWM
  - 1 x SDIO

The MYD-IMX28X Base Board (MYB-IMX28X)

• Serial ports
  - 1 x 3-wire RS232 Debug serial port (DB9)
  - 1 x 5-wire RS232 serial port (UART0)
  - 1 x RS485
• USB
  - 1 x USB2.0 Host port
  - 1 x USB2.0 OTG port
• 10/100Mbps Ethernet interfaces (two for i.MX287, one for i.MX283)
• 2 x CAN interfaces (only for i.MX287)
• 1 x TF card slot
• 1 x LCD interface (16-bit true color, supports optional 4.3-inch and 7-inch TFT LCD)
• 1 x 4-wire resistive touch screen interface
• 1 x Audio input port (3.5mm jack)
• 1 x Audio output port (3.5mm jack)
• 1 x Headphone output port (3.5mm jack)
• 1 x Mic In interface
• 1 x Buzzer
• 1 x 2.54mm pitch 20-pin JTAG interface
• 4 x Buttons (1 x Reset button, 3 x User buttons)
• 2 x User LEDs (Blue)
• 2 x 2.0mm 20-pin expansion connectors
  - 3 x ADC (one high-speed ADC, two low-resolution ADC)
  - 1 x SPI
  - 2 x I2C
  - 3 x UART
  - 3 x PWM

 

Hardware Specification The i.MX28 is a low-power, high-performance applications processor optimized for the general embedded industrial and consumer markets. The core of the i.MX28 is Freescale's fast, power-efficient implementation of the ARM926EJ-S™ core, with speeds of up to 454 MHz. The device is suitable for a wide range of applications, including the following: Human-machine interface (HMI) panels: industrial, home Industrial drive, PLC, I/O control display, factory robotics display, graphical remote controls Handheld scanners and printers Patient-monitoring, portable medical devices Smart energy meters, energy gateways Media phones, media gateways The integrated power management unit (PMU) on the i.MX28 is composed of a triple output DC-DC switching converter and multiple linear regulators. These provide power sequencing for the device and its I/O peripherals such as memories and SD cards, as well as provide battery charging capability for Li-Ion batteries. The i.MX28 processor includes an additional 128-Kbyte on-chip SRAM to make the device ideal for eliminating external RAM in applications with small footprint RTOS. The i.MX28 supports connections to various types of external memories, such as mobile DDR, DDR2 and LV-DDR2, SLC and MLC NAND Flash. The i.MX28 can be connected to a variety of external devices such as high-speed USB2.0 OTG, CAN, 10/100 Ethernet, and SD/SDIO/MMC.   i.MX28 Family Comparison Feature i.MX280 i.MX283 i.MX286 i.MX287 Temp. ranges -20°C to +70°C -40°C to +85°C -20°C to +70°C -40°C to +85°C -20°C to +70°C -40°C to +85°C -40°C to +85°C LCD - Y Y Y Ethernet X1 X1 X1 X2 L2 Switch - - - Y CAN - - X2 X2 SDIO* X4 X4 X4 X4 SPI* X4 X4 X4 X4 S/PDIF Tx - - Y Y * Represents maximum available. Some pins are shared with other interfaces   Function Block Diagram of MYD-IMX28X Dimension Chart of MYD-IMX28X

Software Features

MYIR’s i.MX28 Starter Kit MYD-IMX28X supports for Linux and is provided with software packages. Many peripheral drivers are in source code to help accelerate customers’ designs with a stable and reliable hardware and software platform. The software features are summarized as below:
 

OS	Item	Features	Description
Linux	Bootstrap	u-boot	The secondary bootstrap
	Kernel	Version	Linux 2.6.35
	Drivers	USB Host (support both OHCI and EHCI transmission modes), USB Device (Gadget), Ethernet, MMC/SD, NandFlash, TWI (I2C), SPI, Audio (SGTL5000), LCD Controller (supports 4.3-inch, 7-inch and 10.2-inch LCD), RTC, TouchScreen (4-wire resistive), PWM, UART, CAN, Power Management Unit, LED (GPIO LED and PWM LED)
	File system	UBIFS	Provide image file

Relative Download and Links You can download relative chip datasheet, products datasheet, user manual, software package from below. Any inquiry, please contact MYIR.   1 Freescale i.MX28 Datasheet 1.14 MB 2 MYD-IMX28X Development Board Overview 911 KB 3 MYC-IMX28X CPU Module Overview 548 KB

Relative Download and Links You can download relative chip datasheet, products datasheet, user manual, software package from below. Any inquiry, please contact MYIR.   1 Freescale i.MX28 Datasheet 1.14 MB 2 MYD-IMX28X Development Board Overview 911 KB 3 MYC-IMX28X CPU Module Overview 548 KB