EMAC SoM-iMX6U Manuel utilisateur

SoM-iMX6U

User Manual

April 2016

Revision 1.00

EMAC, Inc.

2390 EMAC Way, Carbondale, Illinois 62902

Phone: (618) 529-4525 Fax: (618) 457-0110

http://www.emacinc.com

SoM-iMX6U User Manual

Table of Contents

1Introduction........................................................................................................................................................... - 4 -

1.1 ....Features............................................................................................................................................................................. - 4 -

2Hardware ................................................................................................................................................................ - 5 -

2.1 ....Specifications .................................................................................................................................................................. - 5 -

2.2 ....Real-Time Clock.............................................................................................................................................................. - 6 -

2.3 ....Watchdog Timer............................................................................................................................................................ - 6 -

2.4 ....External Connections ................................................................................................................................................... - 7 -

2.4.1 External Bus ............................................................................................................................................................................. - 7 -

2.4.2 JTAG............................................................................................................................................................................................ - 8 -

2.4.3 One-Wire / I2C ........................................................................................................................................................................ - 8 -

2.4.4 Ethernet .................................................................................................................................................................................... - 9 -

2.4.5 USB........................................................................................................................................................................................... - 10 -

2.4.6 SPI............................................................................................................................................................................................. - 10 -

2.4.7 MCI Multimedia Card / SDIO .......................................................................................................................................... - 11 -

2.4.8 Serial Ports ............................................................................................................................................................................ - 12 -

2.4.9 I2S............................................................................................................................................................................................. - 13 -

2.4.10 CAN ....................................................................................................................................................................................... - 13 -

2.4.11 GPIO...................................................................................................................................................................................... - 14 -

2.5 ....Power Connections .....................................................................................................................................................- 16 -

2.6....Boot Options..................................................................................................................................................................- 16 -

2.7 ....Serial Data Flash..........................................................................................................................................................- 17 -

2.8 ....Module Status LED......................................................................................................................................................- 17 -

3Design Considerations......................................................................................................................................- 18 -

3.1 ....The EMAC SoM Carrier SoM-150ES .....................................................................................................................- 18 -

3.2 ....Power ...............................................................................................................................................................................- 18 -

3.2.1 Legacy ..................................................................................................................................................................................... - 18 -

3.2.2 Battery Backup..................................................................................................................................................................... - 18 -

3.2.3 Analog Reference................................................................................................................................................................ - 19 -

3.2.4 Analog Voltage..................................................................................................................................................................... - 19 -

SoM-iMX6U User Manual

4Software................................................................................................................................................................- 20 -

4.1 ....Das U-Boot .....................................................................................................................................................................- 20 -

4.2 ....Embedded Linux...........................................................................................................................................................- 20 -

4.2.1Linux with Xenomai Real Time Extensions.................................................................................................................. - 20 -

4.2.2Linux Packages ...................................................................................................................................................................... - 21 -

4.2.3Linux Patches ......................................................................................................................................................................... - 21 -

4.3 ....Qt Creator.......................................................................................................................................................................- 21 -

4.4 ....ARM EABI Cross Compiler........................................................................................................................................- 21 -

SoM-iMX6U User Manual

Disclaimer

EMAC Inc. does not assume any liability arising out of the application or use of any of its

products or designs. Products designed or distributed by EMAC Inc. are not intended for, or

authorized to be used in, applications such as life support systems or for any other use in which

the failure of the product could potentially result in personal injury, death or property damage.

If EMAC Inc. products are used in any of the aforementioned unintended or unauthorized

applications, Purchaser shall indemnify and hold EMAC Inc. and its employees and officers

harmless against all claims, costs, damages, expenses, and attorney fees that may directly or

indirectly arise out of any claim of personal injury, death or property damage associated with

such unintended or unauthorized use, even if it is alleged that EMAC Inc. was negligent in the

design or manufacture of the product.

EMAC Inc. reserves the right to make changes to any products with the intent to improve

overall quality, without further notification.

SoM-iMX6U User Manual

1Introduction

This document describes EMAC’s SoM-iMX6U System-on-Module (SoM). TheSoM-iMX6U is designed to

be compatible with EMAC’s 144-pin SODIMM form factor. This module is built around the Freescale/NXP

i.MX 6UltraLite (MCIMX6G1) Cortex A7 528MHz processor, which provides several of its key features.

The SoM-iMX6U has onboard Ethernet PHY, 5 serial ports, 2 USB 2.0 ports, 1 I2S audio port, 1 SDIO SD

port, 1 I2C port, 2 CAN port, an internal real time clock (RTC), a programmable clock synthesizer,

onboard eMMC flash, a Serial NOR Flash and LPDDR2 RAM.

In addition to the standard SoM features, the SoM- iMX6U also features a fast 32-bit core, open source

software support, and a wide range of controller I/O pins.

1.1 Features

Small, 144 pin SODIMM form factor (2.66” x 1.5”)

NXP ARM Cortex-A7 MCIMX6G1CVM05AA 528MHz Processor

10/100 BaseT Ethernet with on-board PHY

16 bit External Bus Interface

4 Serial RS232 ports and 1 Serial RS232/422/485 port

2 USB 2.0 (High Speed) OTG ports

512/128 MB LPDDR2

4 GB of Resident eMMC Flash

16 MB of Serial Data Flash

Battery-backed Real-Time Clock

SD/MMC Flash Card Interface

1 SPI port

1 I2C port

1 I2S Audio port

2 CAN Bus Interface

Timer/Counters and Pulse Width Modulation (PWM) ports

4-Channel 12-bit Analog-to-Digital Converter

Typical power requirement: 3.3V @ 170 mA

JTAG for debug, including real-time trace

FREE QT Creator IDE with GCC and GDB development tools

SoM-iMX6U User Manual

2Hardware

2.1 Specifications

CPU: Embedded NXP MCIMX6G1CVM05AA processor running at 528 MHz

Flash: 4 GB eMMC Flash and 16 MB of Serial NOR Flash

RAM: 512/128 MB LPDDR2

Flash Disk: 4-bit Parallel or SPI serial SDHC/MMC interface

System Reset: Supervisor with external Reset Button provision

RTC: Real-Time Clock with battery-backed provision using 32-bit free running counter

Timer/Counters: 2, 3-channel , 32-bit timers/counters with capture, compare, and PWM

Watchdog Timer: External Watchdog Timer (MAX6747)

Digital I/O: 18 General Purpose I/Os with 16mA drive when used as an output

Analog I/O: 4-channel, 12-bit Analog-to-Digital Converter (ADC)

Power: Power Management Controller allows selectively shutting down on-processor I/O

functionality and running from a slow clock

JTAG: JTAG for debug, including real-time trace

Clocks: PLL synthesized 8 MHz, 200 KHz, and 14.3 MHz clock outputs

Serial Interfaces

UARTS: 4 Serial RS232 ports with no handshaking and 1 Serial RS232/422/485 port with

handshaking

SPI: 1 High-Speed SPI port with chip select

Audio: I2S Synchronous Serial Controller with Analog interface support

USB: 2 USB 2.0 High-Speed OTG ports

Ethernet Interface

MAC: MCIMX6G1CVM05AA on chip MAC

PHY: Micrel KSZ8081 low power PHY with software shutdown and slow clock modes

Interface: IEEE 802.3u 10/100 BaseT Fast Ethernet (requires external magnetics and Jack)

Bus Interface:

Local ARM MCIMX6G1CVM05AA Bus accessible through SODIMM provides 8 address lines, 16

data bus lines, and control lines.

SoM-iMX6U User Manual

Mechanical and Environmental

Dimensions: SODIMM form factor with the length dimension extended (2.66" x 1.5")

Power Supply Voltage: +3.3 Volts DC +/- 5%

Power Requirements (typical):

Typical 3.3 Volts @ 170mA (0.56 watts)

Max current draw during boot process: 300 mA

Constant busy loop: 240 mA

Idle system: 170 mA

APM sleep mode with Ethernet PHY disabled: 3.60 mA

Operating Temperature: -40 ~ 85° C (-40 ~ 185 ° F), fan-less operation

Operating Humidity: 0% ~ 90% relative humidity, non-condensing

2.2 Real-Time Clock

The SoM-iMX6U has an embedded Real-time Clock. Battery backup is provided from the carrier board

using the VSTBY pin. The SoM-iMX6U will retain the RTT value register during reset and hence use it as a

RTC. The RTC has the provision to set alarms that can interrupt the processor. For example, the

processor can be placed in sleep mode and then later awakened using the alarm function.

2.3 Watchdog Timer

The SoM-iMX6U provides an external Watchdog Timer/ Supervisor (MAX6747) with an extended

watchdog timeout period of 1.42 seconds (±10%). Upon power-up the Watchdog is disabled and does

not require pulsing. To start the Watchdog, it must first be enabled. This is done by configuring port line

CSI_HSYNC as an output and setting it low in software. Once enabled, the Watchdog should be pulsed,

using port line LCD_DATA02, continually every 1.28 seconds or faster to prevent the Watchdog from

timing out and resetting the module. If the user is using the watchdog to force a system reset, the

watchdog may need up to 1.56 seconds of inactivity before the watchdog reset will occur. The watchdog

is automatically disabled upon reset but it can also be disabled by setting CSI_HSYNC high.

SoM-iMX6U User Manual

2.4 External Connections

The SoM-iMX6U connects to a carrier board containing its connectors, power supply and any expansion

I/O, through a standard ENIG-plated (Electroless Nickel Immersion Gold) SODIMM 144 pin connection

(top half shown below).

The SoM model will fit in any standard 144-pin SODIMM socket. These connections are designed to be

compatible with all EMAC 144-pin SoM products. See EMAC SoM 144-pin SODIMM pin-out Specification

to see how other 144-pin SoMs pin-outs line up with the SoM-A5D35’s pin-out.

The use of the SODIMM form-factor for EMAC’s SoMs is a sound choice that has been proven rugged

and reliable in the laptop market.

2.4.1 External Bus

SODIMM

Pin#

SoM

Pin Name

Processor

Pin Name(s)

Description

100

GP_CS1

CSI_MCLK

/EIM_CS0#

General Purpose Processor Chip Select CS0

GP_CS2

~NAND READY

/EIM_CS1#

General Purpose Processor Chip Select CS1

108

GP_CS3

LCD_CLK

/EIM_CS2#

General Purpose Processor Chip Select CS2

~OE

CSI_PIXCLK

Read Signal

~WR

CSI_VSYNC

Write Signal

~RST_IN

~SOM_RST_OUT

Processor Reset

~RST_OUT

~ POR

Processor Reset

Flash WP

Serial Flash WP

Serial Flash Write Protect

26,35,33,31,

28,109,111,

113

A0-A7

Address Bus

29,27,25,22,

23,21,19,20,

8,24,34,70,

77,81,84,86

D0-D15

Data Bus

SoM-iMX6U User Manual

2.4.2 JTAG

The SoM specification allows for access to the JTAG lines for the MCIMX6G1CVM05AA processor. These

connections are used for the I2S interface; custom software will need to be deployed to enable the JTAG

lines’ capability to debug software.

Processor JTAG

SODIMM

Pin#

SoM

Pin Name

Processor

Pin Name(s)

Description

139

JTAG_TCK

JTAG clock

137

JTAG_TDI

JTAG serial in

138

JTAG_TDO

JTAG serial out

140

JTAG_TMS

JTAG operation mode

112

JTAG_TRST

~JTAG_TRST

Test Reset Signal

2.4.3 One-Wire / I2C

The SoM specification calls for a one-wire port. Since the SoM-iMX6U does not have a one-wire port, this

line is not connected for One-Wire Operation. The MCIMX6G1CVM05AA processor does provide an I2C

bus and so these pins are dedicated to that function although they can also be used as GPIOs.

One-Wire / I2C Port

SODIMM

Pin#

SoM

Pin Name

Processor

Pin Name(s)

Description

116

LOCAL1W /SCL

GPIO1_IO02

I2C Clock

SDA

GPIO1_IO03

I2C Data

SoM-iMX6U User Manual

2.4.4 Ethernet

The SoM-iMX6U provides a Micrel KSZ8081 Low Power Ethernet RMII PHY IC on board. Carrier designers

need only run these lines through the appropriate magnetics layer to have a functional Ethernet

connection. Remember the RX and TX lines are differential pairs and need to be routed as such.

The LED/configuration pins’ state at reset determines the Ethernet’s configuration (10-baseT, 100-

baseT, autoconfig) and the function of the LED’s. The SoM-100ES and the SoM-150ES pull them all high,

which configures the chip for network autoconfig, with LED0 functioning as active low link, and LED1 is

functioning as active low Rx Activity (Refer to Carrier schematics).

The Ethernet PHY can be put into a low power mode by writing directly to the MAC via software.

Additional power can be saved by turning off the PHY Oscillator. This is done by setting GPIO1_IO00

low. Make sure to send software commands to the PHY to put it into slow clock and power-down mode

before shutting off the Oscillator. When restoring the PHY first turn the Oscillator on and disable slow

clock mode before accessing the PHY.

Ethernet

SODIMM

Pin#

SoM

Pin Name

{PHY}

Pin Name

Description

LED1_LINK

LED0/NWAYEN

Ethernet Link LED

Configuration Pin

LED2_ACT

LED1/SPEED

Ethernet Activity LED

Configuration pin

Ethernet_Rx-

RXM

Low differential Ethernet

receive line

Ethernet_Rx+

RXP

High differential Ethernet

receive line

Ethernet_Tx-

TXM

Low differential Ethernet

transmit line

Ethernet_Tx+

TXP

High differential Ethernet

transmit line

Table des matières

Autres manuels EMAC Carte mère

EMAC

EMAC PCA-6782 Manuel utilisateur

EMAC

EMAC PCM-5864 Manuel utilisateur

EMAC

EMAC PCM-4896L Manuel utilisateur

EMAC

EMAC PCM-6892E Manuel utilisateur

EMAC

EMAC PCM-9580F-00A1 Manuel utilisateur

EMAC

EMAC PCA-6003 Manuel utilisateur

EMAC

EMAC MicroPac 535 Guide rapide de l'utilisateur

EMAC

EMAC SBC-557 Manuel utilisateur

EMAC

EMAC PCM-53E52 Manuel utilisateur

EMAC

EMAC iPac HCS12 Manuel utilisateur

EMAC

EMAC PCM-4896 Manuel utilisateur

EMAC

EMAC PCM-5315 Manuel utilisateur

EMAC

EMAC SBC-675 Manuel utilisateur

Manuels Carte mère populaires d'autres marques

DFI

DFI SD170 Manuel utilisateur

ASROCK

ASROCK ROMED8-2T Manuel utilisateur

Asus

Asus P2L97A Manuel utilisateur

Winmate

Winmate IC70 Manuel utilisateur

Asus

Asus MES-B Manuel utilisateur

Grantech

Grantech SYS8F377VGGA-3OMN Manuel utilisateur

Telit Wireless Solutions

Telit Wireless Solutions SL869-3DR Manuel utilisateur

Gigabyte

Gigabyte GA-9IVDT Manuel utilisateur

Texas Instruments

Texas Instruments ADS8372EVM Manuel utilisateur

Commell

Commell MS-C73 Manuel utilisateur

IBT Technologies

IBT Technologies MB860 Manuel utilisateur

Nvidia

Nvidia TEGRA DG-04927-001_V01 Manuel utilisateur

Biostar

Biostar M7VIT Bravo Instructions d'utilisation et d'installation

Intel

Intel D33217CK Manuel utilisateur

Asus

Asus F1A55-M LX PLUS R2.0 Manuel utilisateur

EPC

EPC EPC9147C Manuel utilisateur

Asus

Asus EX-B760M-V5 D4 Manuel utilisateur

EPOX

EPOX MU-8KHA0010 Manuel utilisateur