Manuals / Huawei / Kitchen Appliance / Refrigerator

Huawei ME909u-521 manual Software Interfaces, Principle

Models: ME909u-521

1 67

Page 54

HUAWEI ME909u-521 LTE LGA Module
Application Guide	Sleeping and Waking Up Application Scenarios

Figure 8-3WAKEUP_IN PIN input sequence

About the vote, see section 8‎ .3.1 .

Figure 8-4SLEEP_STATUS PIN output sequence

8.3 Software Interfaces

8.3.1Principle

The module runs on a multi-task software system. The sleep task is granted with the lowest priority and assigned to detect whether the module can enter sleep mode. Other tasks (such as the RF, SIM card, USB) have voting rights. They vote to decide whether the module can enter sleep mode. When no other tasks are running, the sleep task is executed. If the sleep task detects that all other tasks agree on the module's sleep, the module enters sleep mode, as shown in ‎Figure 8-5 .At this time, the baseband chip reduces the work frequency, and the RF enters the Discontinuous Reception (DRX) mode.

Issue 01 (2013-07-05)	Huawei Proprietary and Confidential	54
	Copyright © Huawei Technologies Co., Ltd.

Page 54

Image 54

Huawei ME909u-521 manual Software Interfaces, Principle

Contents

Application Guide HUAWEI ME909u-521 LTE LGA ModuleNO WARRANTY Trademarks and PermissionsImport and Export Regulations Issue About This DocumentRevision History HUAWEI ME909u-521 LTE LGA Module3 Network Searching and Registration Application Scenarios Contents2 Initialization Application Scenarios 4 ECM Application Scenarios5 SMS Application Scenarios 7 SIM Operation Application ScenariosIssue Contents10 Module Powering Off and Resetting Application Scenarios HUAWEI ME909u-521 LTE LGA Module1.1.1 Conventions 1 Overview1.1 Conventions and Definitions 1.1.2 Definitions1.2 Organization of This Document ApplicationMobile equipment 1.3 Basic AT Command Processing Principles 1.3.2 AT Command Processing Mechanism1.3.1 Ports Issue 01 Return results of AT commandReturn results of AT command HUAWEI ME909u-521 LTE LGA ModuleIssue All AT commands entered duringAll AT commands entered HUAWEI ME909u-521 LTE LGA ModuleAT Command Timeout DurationAT+COPS=1,2,23415 OK 2. If the module returns failure information, go to step 2.1 Startup Indication SYSSTART 2.1.2 Troubleshooting2 Initialization Application Scenarios 2.1.1 Reference Process2.2.2 Troubleshooting 2.2 Querying Basic Information2.2.1 Reference Process 2.3 Network Service Operations 2.3.1 Reference ProcessHUAWEI ME909u-521 LTE LGA Module 2.3.2 TroubleshootingIssue Application Guide3 Network Searching and Registration Application Scenarios 3.1 Searching and Registering Network3.1.1 Reference Process HUAWEI ME909u-521 LTE LGA Module Enable automatic search for networks. AT+COPS=0Issue Network Searching and Registration ApplicationSolution 3.1.2 TroubleshootingPossible Error Scenario4 ECM Application Scenarios 4.1 ECM Dialing4.1.1 Reference Process 4.1.2 Troubleshooting 4.2 Querying the Dial-up Connection State4.2.1 Reference Process 4.3.2 Troubleshooting 4.3 Disconnecting the Dial-up Connection4.2.2 Troubleshooting 4.3.1 Reference Process5 SMS Application Scenarios 5.1 OverviewFigure 5-2 General SMS process Figure 5-1 Example of data encoded in PDU format of submitted typeFigure‎ 5-2 shows the general SMS process SMS initialization5.2 Initializing SMS 5.2.1 Reference ProcessSet the short message format to PDU Application Guide IssueHUAWEI ME909u-521 LTE LGA Module SMS Application Scenarios5.2.2 Troubleshooting 5.3 Sending Short Message5.3.1 Reference Process The message is unsuccessfully sent Send a PDU message with the wrong service center addressThe message is successfully sent HUAWEI ME909u-521 LTE LGA Module5.3.2 Troubleshooting 0031000B813109731147F4 0000FF04F4F29C0E ESC0891683108608805F931000B 813109731147F40000FF04F4 F29C0Ectrl-Z 5.4 Reading Short Messages 5.4.1 Reference ProcessAll messages 5.4.2 Troubleshooting 5.5 Deleting Short Messages5.5.1 Reference Process 5.5.2 Troubleshooting invalid memoryindex 6.2 Memory Operations 6 Phonebook Application Scenarios6.1 Overview 6.2.1 Reference Processstorage types for the phonebook AT+CPBS=? +CPBS“SM”,‎“EN”,“ON” OK 6.2.2 TroubleshootingInitializing the phonebook Start Query the available Query the current phonebook storage AT+CPBS? +CPBS“ON”,0,0 OK6.3 Reading Phonebook Entries 6.3.1 Reference Process6.3.2 Troubleshooting Initialize the phonebook6.3.3 Writing/Deleting Phonebook Entries 6.3.4 Reference Process 6.3.5 Troubleshooting 6.4 Searching for Phonebook Entries 6.4.1 Reference Process6.4.2 Troubleshooting 6.5 Querying User Number6.5.1 Reference Process 6.6 Setting the TEs Character Sets 6.5.2 Troubleshooting6.6.1 Reference Process +CPBR 6.6.2 TroubleshootingAT+CPBR=1 1,0123456789,129,0048005500417 SIM Operation Application Scenarios 7.1 PIN Operations7.1.1 Reference Process 7.1.2 Troubleshooting  Either CPIN or +CPIN can be used to authenticate the PIN7.2 CRSM Command 7.2.1 Reference Process If pathid is not contained in the command, the module will prefer to access the files with the same FID in the current directory Solution 7.2.2 TroubleshootingPossible Error Scenario8 Sleeping and Waking Up Application Scenarios Interface 8.1 Hardware InterfacesDiagram Pin nameHUAWEI ME909u-521 LTE LGA Module 8.2 Sequence DiagramIssue 01 Application Guide8.3 Software Interfaces 8.3.1 PrincipleFigure 8-5 Currency state when the module is in sleep mode 8.3.2 USB and Sleep 8.3.4 Module Wake-up Remotely Waking up the Host Using USB8.3.3 UART and Sleep 8.3.5 Host Woken up by ModuleWAKEUPOUT Waking up the Host HS HubHS Device 8.4 Application Scenarios System with USB Connection only 8.4.2 Software ProcedureRemote Wake-up Configuration 8.4.1 Hardware Connection8.4.3 Advantages 8.5.2 Software Procedure8.5 Application Scenarios System with USB and WAKEUPOUT 8.5.1 Hardware Connection8.6 System with Other Connection Methods 8.5.3 Advantages9 Thermal Protection Application Scenarios 9.1 Pre-configuration9.1.1 Troubleshooting 9.2 Thermal Protection ProcessApplication Guide IssueHUAWEI ME909u-521 LTE LGA Module Thermal Protection Application Scenarios10.1.2 Troubleshooting 10 Module Powering Off and Resetting Application Scenarios10.2 Power Off ME 10.1 Restarting the MEIssue 10.2.2 TroubleshootingModule Powering Off and Resetting Application HUAWEI ME909u-521 LTE LGA Module11 Appendix 11.1 Relative Documents11.2 Acronyms and Abbreviations IMEI