Description

Measuring only 62mm by 38mm, the MYC-IMX28X is a low-cost and high-performance ARM embedded controller board based on Freescale i.MX28 family applications processor with ARM926EJ-S core and speeds of up to 454MHz. It integrates 128MB DDR2 SDRAM, 256MB Nand Flash, 128KB SPI Flash as well as one Ethernet PHY on board and has two 1.27mm pitch 80-pin SMT connectors to allow all the I/O signals brought in and out from the CPU Module for further expansion.

The MYC-IMX28X CPU Module is a ready-to-run system-on-module (SoM) which can be embedded into your next design for volume production or prototype. It can also come with MYIR own designed base board along with Linux 2.6.35 software packages, document and other necessary cable accessories to enable rapid development based on this Freescale i.MX28 starter kit MYD-IMX28X.

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

MYIR offers the module 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.

MYC-IMX283 CPU Module for Freescale i.MX283

MYC-IMX287 CPU Module for Freescale i.MX287

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

The MYD-IMX28X takes full features of the MYC-IMX28X module and has extended many peripherals and interfaces through headers and connectors including 1 x RS232, 1, Debug, 2 x USB ports, up to 2 x Ethernet, 2 x CAN, 1 x RS485, TF, Audio, LCD, JTAG, etc. It can support -40 to +85 Celsius extended temperature operation and is ideal for smart gateways, human-machine interfaces (HMIs), handheld devices, scanners, portable medical, experimental education and more other industrial applications.

MYD-IMX28X Development Board

Features

Mechanical Parameters

• Dimensions: 62mm x 38mm
• PCB Layers: 6-layer design
• Power supply: +5V
• Working temperature: -20~70 Celsius (commercial grade) or -40~85 Celsius (industrial grade)
  

OS Support

• Linux 2.6.35

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 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 High-speed ports
  - Up to 6 x Serial ports (including one Debug port)
  - 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

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 MYC-IMX28X Dimension Chart of MYC-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 4 MYD-IMX28X Base Board Schematic 190 KB 5 MYC-IMX28X Pinouts Description 124 KB