U-BloxNEO-M8PHardwareIntegrationManual

需积分: 9 214 浏览量更新于2023-03-16 评论 1 收藏 1.16MB PDF 举报

身份认证购VIP最低享 7 折!

领优惠券(最高得80元）

资源详情

资源评论

资源推荐

NEO-M8P

u-blox M8 High Precision GNSS Modules

Hardware Integration Manual

Abstract

This document provides design-

in and feature information for the

high-accuracy NEO-M8P modules

. Base and rover module variants

together provide a high precision cm-level RTK position solution. Each

module contains the u-blox M8 concurrent GNSS engine

for

concurrent reception of GPS, GLONASS and BeiDou signals.

www.u

-blox.com

UBX

-15028081 - R05

NEO-M8P - Hardware Integration Manual

UBX-15028081 - R05 Early Production Information Page 2 of 27

Document Information

Title NEO-M8P

Subtitle u-blox M8 High Precision GNSS Modules

Document type Hardware Integration Manual

Document number UBX-15028081

Revision and Date R05 26-May-2017

Document status Early Production Information

Document status explanation

Objective Specification Document contains target values. Revised and supplementary data will be published later.

Advance Information Document contains data based on early testing. Revised and supplementary data will be published later.

Early Production Information Document contains data from product verification. Revised and supplementary data may be published later.

Production Information Document contains the final product specification.

This document applies to the following products:

Product name Type number ROM/FLASH version PCN reference

NEO-M8P NEO-M8P-0-11 FLASH FW3.01 HPG1.40 N/A

NEO-M8P NEO-M8P-2-11 FLASH FW3.01 HPG1.40 N/A

NEO-M8P NEO-M8P-0-10 FLASH FW3.01 HPG1.40 PCN UBX-17023320

NEO-M8P NEO-M8P-2-10 FLASH FW3.01 HPG1.40 PCN UBX-17023320

u-blox reserves all rights to this document and the information contained herein. Products, names, logos and designs described herein

may in whole or in part be subject to intellectual property rights. Reproduction, use, modification or disclosure to third parties of this

document or any part thereof without the express permission of u-blox is strictly prohibited.

The information contained herein is provided “as is” and u-blox assumes no liability for the use of the information. No warranty, either

express or implied, is given, including but not limited, with respect to the accuracy, correctness, reliability and fitness for a particular

purpose of the information. This document may be revised by u-blox at any time. For most recent documents, visit www.u-blox.com.

u-blox

is a registered trademark of u-blox Holding AG in the EU and other countries. ARM

is the registered trademark of ARM Limited in

the EU and other countries.

NEO-M8P - Hardware Integration Manual

UBX-15028081 - R05 Early Production Information Contents

Page 3 of 27

Contents

Contents .............................................................................................................................. 3

1 Hardware description .................................................................................................. 5

1.1 Overview .............................................................................................................................................. 5

1.2 Configuration ....................................................................................................................................... 5

1.3 Connecting power ................................................................................................................................ 5

1.3.1 VCC: Main supply voltage ............................................................................................................. 5

1.3.2 V_BCKP: Backup supply voltage .................................................................................................... 5

1.3.3 VDD_USB: USB interface power supply .......................................................................................... 6

1.3.4 VCC_RF: Output voltage RF ........................................................................................................... 6

1.4 Communication interfaces .................................................................................................................... 6

1.4.1 UART ............................................................................................................................................. 6

1.4.2 USB ............................................................................................................................................... 6

1.4.3 Display Data Channel (DDC) .......................................................................................................... 7

1.4.4 SPI ................................................................................................................................................. 7

1.4.5 TX Ready signal ............................................................................................................................. 7

1.5 I/O pins ................................................................................................................................................. 8

1.5.1 RESET_N: Reset input .................................................................................................................... 8

1.5.2 EXTINT: External interrupt input ..................................................................................................... 8

1.5.3 SAFEBOOT_N: input ...................................................................................................................... 8

1.5.4 D_SEL: input .................................................................................................................................. 8

1.5.5 LNA_EN: Antenna ON (LNA enable), output .................................................................................. 8

1.5.6 TIMEPULSE: output ........................................................................................................................ 8

1.5.7 RTK_STAT: output ......................................................................................................................... 8

1.5.8 GEOFENCE_STAT: output .............................................................................................................. 8

1.5.9 Electromagnetic interference on I/O lines ....................................................................................... 8

2 Design ......................................................................................................................... 10

2.1 Pin description .................................................................................................................................... 10

2.1.1 Pin name changes ....................................................................................................................... 10

2.2 Minimal design ................................................................................................................................... 11

2.3 Layout: Footprint and paste mask ....................................................................................................... 11

2.4 Antenna ............................................................................................................................................. 12

2.4.1 Antenna design with passive antenna ......................................................................................... 12

2.4.2 Active antenna design ................................................................................................................. 13

3 Product handling ........................................................................................................ 15

3.1 Packaging, shipping, storage and moisture preconditioning ............................................................... 15

3.2 Soldering ............................................................................................................................................ 15

3.3 EOS/ESD/EMI precautions ................................................................................................................... 18

3.4 Applications with cellular modules ...................................................................................................... 22

NEO-M8P - Hardware Integration Manual

UBX-15028081 - R05 Early Production Information Hardware description

Page 5 of 27

1 Hardware description

1.1 Overview

The NEO-M8P modules combine the high performance u-blox M8 positioning engine with u-blox’s Real Time

Kinematic (RTK) technology. The NEO-M8P provides cm-level GNSS performance designed to meet the needs of

unmanned vehicles and other machine control applications requiring accurate guidance.

u-blox’s RTK technology introduces the concept of a “rover” (NEO-M8P-0) and a “base” (NEO-M8P-2) on the M8

platform for stunning cm-level accuracy in clear sky environments. The base module sends corrections via the

RTCM protocol to the rover module via a communication link enabling the rover to output its position relative to

the base at cm level accuracies.

Available in industry standard form factors in leadless chip carrier (LCC) packages, the modules are easy to integrate

and combine exceptional positioning performance with highly flexible power, design, and connectivity options.

SMT pads allow fully automated assembly with standard pick & place and reflow-soldering equipment for cost-

efficient, high-volume production enabling short time-to-market.

For all product features, see the NEO-M8P Data Sheet [1].

1.2 Configuration

The configuration settings can be modified using UBX protocol configuration messages, see the u-blox 8 / u-blox

M8 Receiver Description including Protocol Specification [2]. The modified settings remain effective until power-

down or reset. If these settings have been stored in BBR (Battery Backed RAM), then the modified configuration

will be retained, as long as the backup battery supply is not interrupted.

For the NEO-M8P module, the configuration can be saved permanently in SQI flash.

1.3 Connecting power

The NEO-M8P high precision GNSS modules have up to three power supply pins: VCC, V_BCK and VDD_USB.

1.3.1 VCC: Main supply voltage

The VCC pin provides the main supply voltage. During operation, the current drawn by the module can vary by

some orders of magnitude. For this reason, it is important that the supply circuitry be able to support the peak

power for a short time (see the NEO-M8P Data Sheet [1] for specification).

When switching from backup mode to normal operation or at start-up, u-blox M8 modules must charge

the internal capacitors in the core domain. In certain situations, this can result in a significant current draw.

For low power applications using Power Save and/or backup modes, it is important that the power supply

or low ESR capacitors at the module input can deliver this current/charge.

Use a proper GND concept. Do not use any resistors or inductors in the power line.

1.3.2 V_BCKP: Backup supply voltage

If the module supply has a power failure, the V_BCKP pin supplies the real-time clock (RTC) and battery backed

RAM (BBR). Use of valid time and the GNSS orbit data at start-up will improve the GNSS performance of hot or

warm starts. If no backup battery is connected, the module performs a cold start at power up.

Avoid high resistance on the V_BCKP line: During the switch from main supply to backup supply, a short

current adjustment peak can cause high voltage drop on the pin with possible malfunctions.

If no backup supply voltage is available, connect the V_BCKP pin to VCC.

While power is supplied to the NEO-M8P module through the VCC pin, the backup battery is disconnected

from the RTC and the BBR to avoid unnecessary battery drain (see Figure 1). In this case, VCC supplies

power to the RTC and BBR.

剩余26页未读，继续阅读

Jecely

粉丝: 0
资源: 7

会员权益专享

U-Blox NEO-M8P Hardware Integration Manual

评论0

会员权益专享

最新资源

U-Blox NEO-M8P Hardware Integration Manual

评论0

u-blox neo-6m模组与stm32

u-blox 8 / u-blox m8 receiver description including protocol specification

u-blox u-center下载

U-Blox ZED-F9P Integration Manual.pdf

u-blox8-M8_ReceiverDescrProtSpec_(UBX-13003221).pdf

u-blox-android-gnss-driver

ubloxneo-m8u

c# 控制开启u-blox7-gps

u-blox8 官方协议文档（英文版）

U-blox LEA/NEO 6T手册

u-center有没有中文版

u-center在哪里下载

ublox-gps模块设计指南中文版

ublox 设置波特率

neo-m8n的定位精度

u-bloxM8-V15_ReceiverDescriptionProtocolSpec_Public_(UBX-13003221).pdf

ublox digtal iF filter

n file included from build/make/core/static_library.mk:44: hardware/u-blox/gps/hal/Android.mk:37: error: "PLATFORM_SDK_VERSION 30 not supported". 17:36:07 ckati failed with: exit status 1

u-center中文用户指南

会员权益专享

最新资源