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NXP Semiconductors OM27642 Скачать руководство пользователя страница 34

NXP Semiconductors

UM11038

OM27642 Smart Lock KIT

UM11038

All information provided in this document is subject to legal disclaimers.

© NXP B.V. 2018. All rights reserved.

User manual
COMPANY PUBLIC

Rev. 1.1 — 11 October 2018

407611

34 of 38

15. Power consumption figures

The above table shows different power consumption figures based on Bluetooth Low

Energy advertising intervals. The current QN firmware implementation is configured for
600ms -14 dBm.

at around 93 µA while advertising.

16. Power optimization considerations

At present the Bluetooth Low Energy is operating in polling mode and advertises every
600ms. In order to further reduce the average power consumption, one might consider
changing the hardware and software design in a way that the Bluetooth Low Energy
circuitry is also woken up by an external trigger such as the capacitive wakeup sensor.
Care must be taken to ensure proper RTC (real time clock) operation of the QN9021 in
this case.

Note: the KIT´s hardware and software are delivered as is. Any modifications on this
hardware and/or software are not in the responsibility of NXP.

17. Download available Documents and firmware

www.nxp.com/demoboard/OM27462NBR

18. References

[1]

LPCXpresso webpage

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Содержание OM27642

Страница 1: ...ds OM27462NBR Smart Lock KIT User manual Abstract This document describes the content the hardware implementation and the usage of the Android application as well as the access token structure and pro...

Страница 2: ...ject to legal disclaimers NXP B V 2018 All rights reserved User manual COMPANY PUBLIC Rev 1 1 11 October 2018 407611 2 of 38 Contact information For more information please visit http www nxp com Revi...

Страница 3: ...sts of two PCBs and incorporate the following main IC components PN7462AU all in one full NFC application controller with freely programmable Controller PN from now on QN9020 for Bluetooth Low Energy...

Страница 4: ...his document is subject to legal disclaimers NXP B V 2018 All rights reserved User manual COMPANY PUBLIC Rev 1 1 11 October 2018 407611 4 of 38 2 Smart Lock KIT Package Content Fig 1 OM27462NBR Smart...

Страница 5: ...rd contains all necessary blocking capacitors XTAL 2 status LEDs and the antenna EMC filter The Core module is designed for general purpose use therefore all power supply options e g internal external...

Страница 6: ...2018 All rights reserved User manual COMPANY PUBLIC Rev 1 1 11 October 2018 407611 6 of 38 3 1 Smart lock system block diagram Fig 3 Main building blocks Fig 4 OM27462NBR NFC Bluetooth Low Energy Modu...

Страница 7: ...t Lock KIT UM11038 All information provided in this document is subject to legal disclaimers NXP B V 2018 All rights reserved User manual COMPANY PUBLIC Rev 1 1 11 October 2018 407611 7 of 38 4 Schema...

Страница 8: ...UM11038 All information provided in this document is subject to legal disclaimers NXP B V 2018 All rights reserved User manual COMPANY PUBLIC Rev 1 1 11 October 2018 407611 8 of 38 4 1 Base board sche...

Страница 9: ...11038 All information provided in this document is subject to legal disclaimers NXP B V 2018 All rights reserved User manual COMPANY PUBLIC Rev 1 1 11 October 2018 407611 9 of 38 4 2 Core Module schem...

Страница 10: ...ng of the Smart Lock main PCB is shown below The EMC filter is part of the stack on core Module The base board consists of the matching circuit with the damping resistors and the serial and parallel m...

Страница 11: ...rdware module 1 Connect the Touch sensor plate as shown in fig 1 2 Connect a DC power source 2V 3 3V to the pins labeled BAT see fig 1 6 1 1 Smart Lock power connection As the Smart Lock is intended t...

Страница 12: ...ile active 2 Present Room 201 ACCESS Guest 1 card or Room 201 ACCESS Guest 1 re issued card in close proximity of the module If the card is valid and accepted LED will light up green and the buzzer wi...

Страница 13: ...isclaimers NXP B V 2018 All rights reserved User manual COMPANY PUBLIC Rev 1 1 11 October 2018 407611 13 of 38 7 2 Operating the Smart Lock using the mobile Smart Lock App Download the NXP SMARTLOCK a...

Страница 14: ...art Lock KIT UM11038 All information provided in this document is subject to legal disclaimers NXP B V 2018 All rights reserved User manual COMPANY PUBLIC Rev 1 1 11 October 2018 407611 14 of 38 Fig 1...

Страница 15: ...r mode any time by interrupt on GPIO when PN requires the current time from QNs RTC to check the token 8 2 Interaction between PN and QN when token is delivered over RFID When the token is delivered o...

Страница 16: ...00 bps and data format 8N1 The GPIO lines are used to power the PN in case a Bluetooth Low Energy client connects or to wake up QN in case a card or phone is presented to the PN via NFC The UART is us...

Страница 17: ...exist to start the communication between QN and PN 10 1 1 NFC Transaction In this use case the PN is powered up either by the proximity switch or the micro switch In both cases the PN has to wake up t...

Страница 18: ...is use case QN will power PN using the BLE_OUT line after establishing the Bluetooth Low Energy connection After power on the PN will start the communication by triggering the QN GPIO interrupt using...

Страница 19: ...le C PN sends APDU command to QN QN forwards data to the Bluetooth Low Energy client A QN responds with response APDU T PN sets RTC in QN N PN sets a new Bluetooth Low Energy device name in QN D PN in...

Страница 20: ...e PN TASK which will handle the event in a synchronous way Note In the download area only the binary files are provided 11 1 src app pn app_pn_task c The PN TASK has the overall responsibility to take...

Страница 21: ...sending multiple messages allow_wakeup 0 ATTENTION To be sure that the QN OS Kernel is active the library function sw_wakeup_ble_hw must be called Otherwise the sent message could be processed only af...

Страница 22: ...uetooth Low Energy client After a Bluetooth Low Energy disconnect sequence is completed trigger via Bluetooth Low Energy client or smartlock the PN_TASK receives a PN_BLE_DISC_IND message and the hand...

Страница 23: ...advertise cycle again 11 7 Data exchange 11 7 1 1 Send data Data exchange state is entered by calling Smart Lock _uart_wait_for_cmd to set up the correct callbacks on UART to wait for command from PN...

Страница 24: ...FARE DESFire to some other card from MIFARE family these two functions smart_lock_init_mfdf and smart_lock_retrive_token should be replaced After the token is retrieved it is passed to smart_lock_proc...

Страница 25: ...ams_t phalMfdf_Sw_DataParams_t phKeyStore_Sw_DataParams_t phCryptoSym_Sw_DataParams_t phCryptoRng_Sw_DataParams_t 12 3 2 phbalReg_Smart Lock _DataParams_t phbalReg_Smart Lock _DataParams_t component c...

Страница 26: ...ersion Purpose OM27462NBR Smart Lock KIT 1 2 or higher Demonstrator board OM13054 LPC Link 2 1 0 Standalone debug adaptor LPCXpresso IDE 8 0 0 or higher Development IDE for PN LPCXpresso PN7462AU plug...

Страница 27: ...ort the Smartlock PN Project via File Import Existing Project into Workspace Build the Project via Project Build All Additional compiler may need to be installed based on your environment Connect the...

Страница 28: ...ild Target Connect the LPC Link2 and the Smartlock QN SWD Pins with the flashing cable to the correct pins as shown in Fig 18 Make sure the JP2 jumper on the LPC Link 2 is set and the Battery is conne...

Страница 29: ...ved User manual COMPANY PUBLIC Rev 1 1 11 October 2018 407611 29 of 38 A new Window should open and show the SW Device in the List Device Name should be ARM CoreSight SW DP as in Fig 20 Fig 20 Configu...

Страница 30: ...rovided in this document is subject to legal disclaimers NXP B V 2018 All rights reserved User manual COMPANY PUBLIC Rev 1 1 11 October 2018 407611 30 of 38 Fig 21 Configure Utilities in Keil Save the...

Страница 31: ...it is also possible to flash the QN via a serial port Remove the PN Core module and connect your serial port with the QN as shown in the Fig 22 Fig 22 Connections for serial flashing Open the QBlue I...

Страница 32: ...Crypto Mode AES DF Name 07060504030201 HEX 3 keys Key 0 app Master key Diversified Key needed Non diversified Key 00000000000000000000000000000001 Key 1 Read key for File id 00 Diversified key needed...

Страница 33: ...bytes 14 3 Standard Data file content 14 3 1 Token format 14 3 2 Token verification process 1 Validate RevToken chose appropriate processing If revision is below current Rev in lock Token isn t valid...

Страница 34: ...siderations At present the Bluetooth Low Energy is operating in polling mode and advertises every 600ms In order to further reduce the average power consumption one might consider changing the hardwar...

Страница 35: ...ponsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer s applications and products planned as well as for the planned application and use of customer s th...

Страница 36: ...tooth The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG Inc and any use of such marks by NXP Semiconductors is under license AMBA Arm Arm7 Arm7TDMI Arm9 Arm11 Artisan...

Страница 37: ...Energy Transaction 18 10 2 Data exchange 19 11 Structure of the QN Firmware 20 11 1 src app pn app_pn_task c 20 11 2 src driver pn_nfc c 21 11 3 Interaction with Bluetooth Low Energy Stack 22 11 4 Blu...

Страница 38: ...NXP B V 2018 All rights reserved For more information please visit http www nxp com Date of release 11 October 2018 407611 Document identifier UM11038 15 Power consumption figures 34 16 Power optimiza...

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