Epson IMU G Series User manual

Rev. 1.3
Epson IMU G series & V series
Epson IMU_OEM7
Interposer Board
User Manual
Document Number: XB9A-G-001-01

Evaluation board/kit and Development tool important notice
1. This evaluation board/kit or development tool is designed for use for engineering evaluation,
demonstration, or development purposes only. Do not use it for other purposes. It is not intended to
meet the requirements* of design for finished products. *They include requirements of chemical
substances.
2. This evaluation board/kit or development tool is intended for use by an electronics engineer and is
not a consumer product. The malfunction by the noise etc. might be caused depending on your use
environment. The user should use it properly and in a safe manner.
3. Seiko Epson does not assume any responsibility or liability of any kind of damage and/or fire
coursed by the use of this evaluation board/kit or development tool. The user should cease to use it
when any abnormal issue occurs even during proper and safe use.
4. When you dispose this evaluation board/kit or development tool, discard it in accordance with
domestic law concerning disposal.
5. The part used for this evaluation board/kit or development tool may be changed without any notice.
NOTICE
No part of this material may be reproduced or duplicated in any form or by any means without the
written permission of Seiko Epson. Seiko Epson reserves the right to make changes to this material
without notice. Seiko Epson does not assume any liability of any kind arising out of any inaccuracies
contained in this material or due to its application or use in any product or circuit and, further, there is no
representation that this material is applicable to products requiring high level reliability, such as, medical
products. Moreover, no license to any intellectual property rights is granted by implication or otherwise,
and there is no representation or warranty that anything made in accordance with this material will be
free from any patent or copyright infringement of a third party. When exporting the products or
technology described in this material, you should comply with the applicable export control laws and
regulations and follow the procedures required by such laws and regulations. You are requested not to
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military purposes.
All brands or product names mentioned herein are trademarks and/or registered trademarks of their
respective companies. ©SEIKO EPSON CORPORATION 2017-2018, All rights reserved.

Epson IMU_OEM7 Interposer Board Seiko Epson Corporation i
User Manual (Rev. 1.3)
Table of Contents
1. Description................................................................................................................. 1
2. Features...................................................................................................................... 2
3. Block Diagram............................................................................................................ 3
4. Technical Description................................................................................................ 4
5. Configuration ............................................................................................................. 5
5.1. Configuration Resistors ............................................................................................................5
6. Board Interfaces and Connectors ............................................................................ 6
6.1. OEM7 Development Kit Connector P1.....................................................................................6
6.2. Epson G Series IMU Connector P2...........................................................................................7
6.3. Epson V Series IMU Connector P3...........................................................................................8
7. Parts List................................................................................................................... 10
8. Schematic Diagrams.................................................................................................11
9. Board Layout............................................................................................................ 12

Description
Epson IMU_OEM7 Interposer Board Seiko Epson Corporation 1
User Manual (Rev. 1.3)
1. Description
This document describes the Epson IMU_OEM7 Interposer Board (referred to as EIIB). The purpose of
the EIIB is solely for prototype and evaluation in a laboratory or development environment when using
the Epson G2 and V series IMU with the NovAtel OEM7 Development Kit.
The EIIB is a simple board that mounts directly onto the designated “IMU Board” area of the OEM7
Development Kit and routes all the necessary interface signals to the designated connector.
This product is intended for use by qualified engineers familiar with electronics or software development
and should not be used as all or part of a finished end product.

Features
2 Seiko Epson Corporation Epson IMU_OEM7 Interposer Board
User Manual (Rev. 1.3)
2. Features
SMT socket 20x2 1 mm pitch connector Samtec CLM-110-02-L-D (mates with Epson G-series pin
compatible IMU)
SMT socket 20x2 0.4 mm pitch connector Panasonic AXE120224 (mates with Epson V-series
compatible IMU)
SMT header 20x2 1.27 mm pitch connector Samtec FTSH-110-01-F-DV (mates with OEM7
Development Kit)
PCB footprint for mounting 33 ohm 5% 0603 resistors to optionally connect OEM7 output signal
TIMEMARK or EVENT_OUT2 (mutually exclusive) to the Epson IMU GPIO2/EXT input pin.

Block Diagram
Epson IMU_OEM7 Interposer Board Seiko Epson Corporation 3
User Manual (Rev. 1.3)
3. Block Diagram
Figure 3.1 Epson IMU_OEM7 Interposer Board Block Diagram
Epson IMU
Epson IMU_OEM7
Interposer Board
(EIIB)
OEM7
Development
Kit
SPI I/F
DRDY
*Optional
TIMEMARK or
EVENT_OUT2
3.3V / GND

Technical Description
4 Seiko Epson Corporation Epson IMU_OEM7 Interposer Board
User Manual (Rev. 1.3)
4. Technical Description
The EIIB is intended for two primary purposes:
1. To provide a direct hardware connection between the supported Epson IMU and the
NovAtel OEM7 Development Kit.
2. To facilitate prototyping and software development of the supported Epson IMU with the
NovAtel OEM7 Development Kit without the need of additional hardware or cabling.
The EIIB is powered directly by the 3.3 volt power supply and GND pins on connector P1, which is
supplied directly from the OEM7 Development Kit.
The serial host bus interface between the OEM7 Development Kit and EIIB only supports an SPI
interface with DRDY (Data Ready) line.A UART interface is not supported.
Additionally, the OEM7 TIMEMARK or EVENT_OUT2 signals can optionally be connected to the Epson
IMU on the EIIB. Refer to Section 5.1 Configuration Resistors for more information.
The EIIB is a carrier board for directly mounting supported Epson G-series and V-series IMUs. Please
contact NovAtel directly to inquire about the supported Epson IMU models.
NOTE: Only one Epson IMU should be mounted on the respective P2 or P3 connectors at any given
time. Mounting Epson IMUs on both P2 and P3 at the same time may cause irreversible damage to
Epson IMUs, EIIB or the OEM7 Development Kit.

Configuration
Epson IMU_OEM7 Interposer Board Seiko Epson Corporation 5
User Manual (Rev. 1.3)
5. Configuration
5.1. Configuration Resistors
The EIIB has two mountable 33 ohm 5% 0603 size resistors for optionally connecting either the
TIMEMARK or EVENT_OUT2 output signals from the NovAtel OEM7 Development Kit to the Epson
IMU GPIO2_EXT input. By default, neither R1 nor R2 resistors are mounted on the EIIB.
NOTE: This feature requires additional configuration settings on both the OEM7 Development Kit and
Epson IMU to make use of this function. Please contact NovAtel directly to inquire about the supported
Epson IMU models. Please refer to appropriate datasheets for additional technical information.
Table 5.1 Configuration Resistor Description
IMU Signal
OEM7 Signal
Resistor
Description
Comment
GPIO2/EXT
TIMEMARK
R1
Mount R1 to connect
GPIO2/EXT to
TIMEMARK
NOTE: DO NOTmount both R1 and
R2 at the sametime. This will cause
TIMEMARK and EVENT_OUT2
output signals to be shorted
together and damage the OEM7
Development Kit.
If TIMEMARK or EVENT_OUT2 is
not used, then R1 and R2 do not
need to be mounted.
EVENT_OUT2
R2
Mount R2 to connect
GPIO2/EXT to
EVENT_OUT2
Figure 5-1 Configuration Resistor R1 and R2 Location (PCB Backside View)

Board Interfaces and Connectors
6 Seiko Epson Corporation Epson IMU_OEM7 Interposer Board
User Manual (Rev. 1.3)
6. Board Interfaces and Connectors
6.1. OEM7 Development Kit Connector P1
The NovAtel OEM7 Development Kit provides a mating connector and mounting holes for direct
connection of an external IMU Board. The EIIB supports this connection using a 2x10 1.27 mm pitch
header connector P1 (Samtec FTSH-110-01-F-DV). The EIIB also contains 3.45 mm diameter mounting
holes located on the four corners to secure the PCB to the NovAtel OEM7 Development Kit. For more
information regarding the recommended mounting hardware please contact NovAtel directly.
Table 6.1 OEM7 Connector P1 Pin Description
Pin Number
Signal Name
Description / Comment
2
VCC
3.3V supplied by OEM7 Development Kit
5
TIMEMARK
Optionally provides PPS
7, 13
GND
Circuit ground
8
SPI_CLK
SPI Clock (Supports SPI Mode 3 only)
10
SPI_nCS
SPI Chip select (Supports SPI Mode 3 only)
12
SPI_MISO
SPI Master In Slave Out (Supports SPI Mode 3 only)
14
SPI_MOSI
SPI Master Out Slave In (Supports SPI Mode 3 only)
16
EVENT_IN2
Connects to Epson IMU DRDY output
20
EVENT_OUT2
Optionally provides EVENT_OUT2 clock signal
1, 3, 4, 6, 9, 11,
15, 17, 18, 19
—
Not connected
The following diagram shows the P1 connector wiring.
Figure 6-1 OEM7 Connector P1 Wiring