EMAC SoM-112ES Manuel utilisateur

SoM-112ES

User Manual

July 2018

Revision 1.00

EMAC, Inc.

2390 EMAC Way, Carbondale, Illinois 62902

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

http://www.emacinc.com

SoM-112ES User Manual

Table of Contents

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

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

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

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

2.2 ....Jumper Configuration & Connector Descriptions............................................................................................. - 6 -

2.3 ....Power Connectors ......................................................................................................................................................... - 7 -

2.4 ....Ethernet............................................................................................................................................................................. - 7 -

2.5 ....Serial Ports ....................................................................................................................................................................... - 7 -

2.6 ....USB ...................................................................................................................................................................................... - 9 -

2.7 ....CAN Port............................................................................................................................................................................ - 9 -

2.8 ....MicroSD Card Socket.................................................................................................................................................... - 9 -

2.9 ....Audio.................................................................................................................................................................................- 10 -

2.10..Wi-Fi [Optional]............................................................................................................................................................- 10 -

2.11..I/O Expansion................................................................................................................................................................- 10 -

2.12..Mikrobus Expansion...................................................................................................................................................- 11 -

2.13..I2C......................................................................................................................................................................................- 11 -

2.14..SPI ......................................................................................................................................................................................- 11 -

2.15..Status LEDs and Reset ...............................................................................................................................................- 11 -

2.16..Real-Time Clock............................................................................................................................................................- 12 -

3Software................................................................................................................................................................- 12 -

3.1 ....Das U-Boot.....................................................................................................................................................................- 12 -

3.2 ....Embedded Linux...........................................................................................................................................................- 12 -

3.2.1Linux with Xenomai Real Time Extensions.................................................................................................................. - 13 -

3.2.2Linux Packages ...................................................................................................................................................................... - 13 -

3.2.3Linux Patches......................................................................................................................................................................... - 13 -

3.3 ....Qt Creator.......................................................................................................................................................................- 13 -

3.4 ....ARM EABI Cross Compiler........................................................................................................................................- 13 -

4Appendix A: Connector Pinouts....................................................................................................................- 14 -

4.1 ....4-Pin Molex Male Floppy Power Connector (CN1) .....................................................................................- 14 -

4.2 ....3-Pin Polarized Locking CAN Connector (CN2) ...........................................................................................- 14 -

4.3 ....Utility GPIO Header (HDR1)..................................................................................................................................- 14 -

SoM-112ES User Manual

4.4 ....RS-232 Serial Port COM A Header (HDR2).....................................................................................................- 15 -

4.5 ....RS-232/422/485 Serial Port COM B Header (HDR3)................................................................................- 15 -

4.6 ....Audio Input Jack (JK1) .............................................................................................................................................- 15 -

4.7 ....Audio Output Jack (JK2)..........................................................................................................................................- 15 -

4.8 ....Serial Port COM C (JK3)...........................................................................................................................................- 16 -

4.9 ....Micro USB B 2.0 Console Interface Connector (JK4)..................................................................................- 16 -

4.10..USB Host Port B (JK5) ..............................................................................................................................................- 16 -

4.11..USB Host Port A1 & A2 (JK6) ................................................................................................................................- 17 -

4.12..USB Device Port C (JK7) ..........................................................................................................................................- 17 -

4.13..Single Port Ethernet Connector (JK8)...............................................................................................................- 17 -

4.14..Vin Power Barrel Jack (JK10) ...............................................................................................................................- 18 -

4.15..MikroBUS Socket (SOK2)........................................................................................................................................- 18 -

4.16..Micro SD Card Socket (SOK3)...............................................................................................................................- 18 -

5 Appendix B: Jumper Settings...................................................................................................................- 19 -

5.1 ....JB1 (Boot0 Source Selection)................................................................................................................................- 19 -

5.2 ....JB2 (Boot1 Source Selection)................................................................................................................................- 19 -

5.3 ....JB3 (Flash Write Protect) .......................................................................................................................................- 19 -

5.4 ....JB4 (Standby Battery)..............................................................................................................................................- 19 -

5.5 ....JB5 (External SPI Interface Voltage) ................................................................................................................- 19 -

5.6 ....JB6 (External I2C Interface Voltage) ................................................................................................................- 19 -

5.7 ....JB7 (Serial Port RS-232 or RS-422/485).........................................................................................................- 20 -

5.8 ....JB8 (Serial Port RS-422 or RS-485) ...................................................................................................................- 20 -

5.9 ....JB9 (USB Device Port C Enable)...........................................................................................................................- 20 -

6 Appendix C: Dimensional Drawing ......................................................................................................- 21 -

SoM-112ES 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-112ES User Manual

1Introduction

This document provides information regarding EMAC’s SoM-112ES System-on-Module Carrier Board.

The SoM-112ES is a compact, low-power SoM Carrier/Socket board with WiFi and Bluetooth

connectivity onboard, and MikroBus expansion. This versatile SoM Carrier/Socket board is ideal for

evaluation and early development work. This Carrier is designed to work with all EMAC 144-pin

SODIMM type SoMs. Note: The SoM-112ES is specifically designed for SoMs with APM sleep capability

and utilizes GPIO controllable IO to further reduce sleep current draws.

The SoM-112ES provides access to many of the SoM's I/O through on-board connectors as well as a

number of additional I/O expansion blocks such as Wireless Networking, 10/100 BaseT Ethernet,

MikroBUS modules, and HCSD/MMC flash disk.

When paired with the SOM-IMX6U, the SOM-112ES makes a relatively Low Power IoT connectivity

solution, using a MikroBUS ZigBee Wireless module, the SOM-112ES can collect and route IoT sensors to

the Cloud.

1.1 Features

114 Pin SODIMM SoM Connector

2x serial RS232 ports, 1x USB to Serial Console, & 1x RS232/422/485 Port

3x USB Host ports & 1x USB Device Port

1x 10/100 BaseT Ethernet with onboard Magnetics and RJ45

Wifi/BT & CAN 2.0B Port

General SOM I/O: GPIOs, SPI, A/D, D/A, PWM, I²C, I²S

MikroBus Expansion

Barrel power jack

Standard Molex male floppy power connector for alternate power input

DB9 male for COM C

3x 10 pin header for serial ports

1x micro USB connector for serial console

1x dual USB Type A connector

1x single USB Type A connector

1x mini USB Device Type B connector

1x RJ45 Ethernet connector

1x Micro SD Card Socket

1x 3-pin polarized locking connector for CAN

1x dual row 50-pin .1” GPIO/Misc. Header connector

1x I²S audio with Line in & out jacks

Reset Button

SoM-112ES User Manual

2Hardware

2.1 Specifications

Flash Disk: Micro SD Card Socket

System Reset: External Reset Button

RTC: Real-Time Clock with battery-backed provision

Multi I/O: (any mix of)

oUp to 8x General Purpose Digital Inputs

oUp to 8x General Purpose Digital Outputs

oUp to 8x 12-bit Digital-to-Analog Converter (DAC)

oUp to 8-channel, 12-bit Analog-to-Digital Converter (ADC)

Power: Barrel Jack or Standard 4-Pin Molex Male Connectors with 3.3 linear regulator

Serial Interfaces:

UARTS: 4x Serial Ports (2xRS232, 1xRS232/422/485, 1x USB Device to Serial Console)

Audio: 1x I²S audio with Line in & out jacks

USB: 3x USB Host ports & 1x USB Device Port

Ethernet Interface:

Type: 10/100 BaseT Ethernet with onboard Magnetics and RJ45

Interface: On-Board RJ-45 Connector

Bus Interface:

SoM Bus: 144-Pin SODIMM SOM Module

Bus Expansion.: MikroBUS Expansion Socket (MikroBUS module Optional)

Mechanical and Environmental

Dimensions: 3" W × 4 .75" L × 0.75" H (76mm × 120mm × 19mm)

Power Supply Voltage: +5 V power input

oPower Requirements (typical): 5 Volts @ ~500mA (2.5 watts)

Operating Temperature: 0 to 70° C (32 ~158° F) [-40 to +85° C optional]

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

SoM-112ES User Manual

2.2 Jumper Configuration & Connector Descriptions

The SoM-112ES is factory configured. In the event that jumpers need to be verified or modified this

section provides the information required, including instructions on setting jumpers and connecting

peripherals, switches and indicators. Be sure to read all the safety precautions before you begin any

configuration procedure. See Appendix A for connector pinouts and Appendix B for Jumper Settings.

Table 1: Connectors

Label

Function

CN1

4-Pin Molex Male Floppy Power Connector

CN2

3-Pin Polarized Locking CAN Connector

HDR1

Utility GPIO Header

HDR2

RS-232 Serial Port COM A Header

HDR3

RS-232/422/485 Serial Port COM B Header

JK1

Audio Input Jack

JK2

Audio Output Jack

JK3

Serial Port COM E

JK4

Micro USB 2.0 Console Interface Connector

JK5

USB Host Port B

JK6

USB Host Port A1 & A2

JK7

USB Device Port C

JK8

Single Port Ethernet Connector

JK9

WiFi Antenna Connector

JK10

Vin Power Barrel Jack

SOK1

144 Pin SoM Socket

SOK2

MikroBUS Socket

SOK3

Micro SD Card Socket

Table 2: Jumpers

Label

Function

Default

JB1

Boot0 Source Selection

Position A

JB2

Boot1 Source Selection

Position A

JB3

Flash Write Protect

Position A

JB4

Standby Battery

JB5

External SPI Interface Voltage

3.3V

JB6

External I2C Interface Voltage

3.3V

JB7

Serial Port RS-232 or RS-422/485

232

JB8

Serial Port RS-422 or RS-485

422

JB9

USB Device Port C Enable

Position B

SoM-112ES User Manual

2.3 Power Connectors

The SoM-112ES provides two power connectors. JK10 is a standard 5.5mm barrel jack with an inner

diameter of 2.1mm with a center V+ connection and has an operating temperature of -25 ~ 85°C. This

jack allows for an easy connection to a wall mount power supply (EMAC part number PER-PWR-00032).

An alternative power connector is located at CN1 and is an On-Shore Technology locking power

connector (part# 254B5V1040). This power input provides a more rugged/industrial locking connection

with an operating temperature of -25 ~ 85°C.

Table 3: Pin-out for Power Connector (CN1)

Signal

Pin 1

Pin 2

GND

Pin 3

GND

Pin 4

12V

2.4 Ethernet

The SoM-112ES provides one 10/100 Base-T full duplex Ethernet and uses a standard single port RJ-45

LAN jack (JK8) with integrated magnetics. It can be connected straight to a hub, or another computer

via Ethernet crossover cable. The Ethernet crossover cable can be replaced with a patch cable if the SoM

processor module supports the Auto MDI-X capability. The Ethernet MAC & PHY are integrated into the

SoM processor module. Activity and Link LEDs are integrated into the RJ45 connector.

2.5 Serial Ports

The SoM-112ES is equipped with four serial ports, two that terminate to 10-pin header connectors

(COM A & B), one of which terminates to a male DB9 connector (COM C), and one USB to Serial console

port that terminates to a micro USB 2.0 B connector (COM E). COM D is dedicated to the Bluetooth

Radio. Baud Rates, stop bits, etc. are all programmable for each port via software.

Serial Port COM A is a RS232 port. This port offers RXD/TXD without handshaking lines

terminating to a 10-pin header.

Table 4: Serial Port COM A (HDR2)

RS-232 10-Pin Header: Description

COMA_RX232

COMA_TX232

GND

SoM-112ES User Manual

Serial Port COM B terminates to a 10-Pin header and can be configured as RS232, RS422, or

RS485 via two jumpers (JB7 & JB8). To select RS232 set jumper JB7 to 232 (this is the default).

For RS4xx set jumper JB7 to 4xx and jumper JB8 to 422 or 485 whichever is desired.

Table 5: Serial Port COM B (HDR3)

RS-232 10-Pin Header: Description

RS-422/485 10-Pin Header: Description

COMB_422/485_TX-

COMB_232RX

COMB_422/485_TX+

COMB_232_RTS

COMB_232TX

COMB_422/485_RX+

COMB_232_CTS

COMB_422/485_RX-

GND

Serial Port COM C terminates to a male DB9 connector and is a RS232 port with a full

complement of handshaking lines allowing it to communicate with modems and other devices

requiring hardware flow control (Note actual number of handshake lines is determined be the

SoM)

Table 6: Serial Port COM C (JK3)

DB9 Connector: Description

COMC_232_DCD

COMC_232_RXD

COMC_232_TXD

COMC_232_DTR

COMC_232_GND

COMC_232_DSR

COMC_232_RTS

COMC_232_CTS

COMC_232_RI

COM E is a serial console to USB device port terminating to a 5-Pin USB micro B connector. This

port offers USB to asynchronous serial date transfers and includes RTD/TXD lines. A Green

activity light is provided for the console interface and located at LD2.

SoM-112ES User Manual

Table 7: Serial Port COM E (JK4)

Micro USB B 2.0 Connector: Description

PWR

DM (Data -)

DP (Data +)

GND

2.6 USB

The SoM-112ES provides for 1x dual USB 2.0 Type A host ports (USB PortA1 & A2), 1x single USB 2.0

Type A host port (USB Port B), and 1x single USB Type B device port (USB Port C). Ports A1 & A2 are

provided via a USB Switch. USB HOST Port B and USB Device Port C are both provided directly from the

SOM.

The USB host ports are fused with automatically resettable Polyfuses. If a USB device tries to draw more

than 500 milliamps, the fuses will open. Once the drawing source is removed the fuses will automatically

reset.

Note: When sizing a power supply, make sure to allow for USB Device consumption. A device can

potentially draw 500mA, therefore these devices could use a total of up to 1.5 amp of power. USB ports

must be supported by the SoM for the ports to operate.

A Micro USB Connector is provided as the system serial console (COM E). This makes it easier for

modern day computers that are not equipped with a standard serial port to establish a console port

connection.

2.7 CAN Port

The SoM-112ES provides a CAN 2.0 port utilizing the TI SN65HVD232 CAN Transceiver chip. Note, the

CAN controller must be supported by the SOM in order to have CAN functionality. The CAN port is

accessible via a 3-pin header (CN2).

Table 7: Pin-out for CAN 2.0 (CN2)

Signal

Pin 1

GND

Pin 2

CAN_L

Pin 3

CAN_H

2.8 MicroSD Card Socket

The SoM-112ES provides a high capacity MicroSD socket. This socket is hot-swappable and can accept a

wide variety of Flash Cards. The MicroSD card is serviced through a USB bridge device as the native SoM

SDIO port is dedicated to the Wireless module. A Red activity LED (LD3) will be lit when the Flash card is

accessed and the card should not be removed at this time. A card that is written to by the SoM-112ES

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