NFC Knowledge Base

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

NFC Knowledge Base

Discussions

Sort by:
This post contains a step by step guide of how to use PN7150 with LPC55S69.  This document is structured as follows: Overview of PN7150:  The PN7150 is a Plug-and-Play all-in-one NFC solution for easy integration into any OS environment like Linux and Android, reducing Bill of Material (BoM) size and cost. The embedded Arm® Cortex®-M0 microcontroller core is loaded with the integrated firmware, simplifying the implementation as all the NFC real-time constraints, protocols and the device discovery (polling loop) are processed internally. In few NCI commands, the host SW can configure the PN7150 to notify for card or peer detection and start communicating with them. It has the following salient features: Full NFC forum compliancy with small form factor antenna Embedded NFC firmware providing all NFC protocols as pre-integrated feature Direct connection to the main host or microcontroller, by I2C-bus physical and NCI protocol Ultra-low power consumption in polling loop mode Highly efficient integrated power management unit (PMU) allowing direct supply from a Battery Overview of LPC55S69:  The LPCXpresso55S69 development board provides the ideal platform for evaluation of and development with the LPC55S6x MCU based on the Arm® Cortex®-M33 architecture. The board includes a high performance onboard debug probe, audio subsystem and accelerometer, with several options for adding off-the-shelf add-on boards for networking, sensors, displays and other interfaces. The LPCXpresso55S69 is fully supported by the MCUXpresso suite of tools, which provides device drivers, middleware and examples to allow rapid development, plus configuration tools and an optional free IDE. MCUXpresso software is compatible with tools from popular tool vendors such as Arm and IAR, and the LPCXpresso55S69 may also be used with the popular debug probes available from SEGGER and P&E Micro. Hardware requirements: OM5578/PN7150ARD  LPCXpresso55S69 + usb  micro cable  Using PN7150 with LPC55S69-EVK: Hardware Connections: The hardware connections are simple. Both the LPC55S69-EVK board and OM5578/PN7150ARD board have an Arduino interface. So, mount the PN7150ARD board with male Arduino connector onto the female Arduino connector of the LPC55S69-EVK board. Running the demo: If this is the first time you’re using LPC55S69-EVK board, follow the getting started guide first à  LPC55S69-EVK | NXP . Make sure to install the SDK package for LPC55S69-EVKboard which is required for the project below to run. Download the ‘NXP-NCI_PN7150_LPC55xx_example’ package which you will find attached to this post. Drag and drop the downloaded package to the “Project Explorer” tab of your MCUXpresso IDE workspace (If you don’t have MCUXpresso, it can be downloaded for free by clicking here: Now that the package has been imported to the MCUXpresso IDE (via drag and drop), click on Debug icon from the Quickstart panel to begin a debug session. Once the debug session has started, click on the run icon to run the code: The project should be running now. The project contains basic discovery loop functionality. Here is how the output looks in the console tab on MCUXpresso: Bring any NFC card near the PN7150 board’s antenna and the output console will show the detection and type of the card. For example, in the picture below, we can see that type 4 card was detected: Available Resources: AN11990 NXP-NCI MCUXpresso example document. (https://www.nxp.com/docs/en/application-note/AN11990.pdf) The example project explained in this project was ported to LPC55S69 using section 5.3 and 6 of the above mentioned document. PN7150 datasheet (https://www.nxp.com/docs/en/data-sheet/PN7150.pdf) PN7150 User Manual (https://www.nxp.com/docs/en/user-guide/UM10936.pdf) PN7150 NFC Controller SBC Kit User Manual  (https://www.nxp.com/docs/en/user-guide/UM10935.pdf)
View full article
Hello NFC enthusiasts,   In the NFC communication protocol, when a device acts as a NFC reader (it provides its own field), it is waiting for a tag to approach. When this occurs, the reader energizes the tag and depending on the application, it can read from or write to a tag.   When multiple tags are in the field, the power decreases according to the number of tags being energized, for which the tag operations will not work properly. For this, there is a process called anti-collision, in which the reader decides, from the detected tags, one to work with.   The purpose of this document is to demonstrate the activation of each tag at a given index.   This demonstration is going to be made with two NTAG 216.     This demonstration is based on NXP NFC Reader Library v05.02.00, NfcrdlibEx3_NFCForum project for PNEV7462B, in which some modifications are going to be made in order to carry this out. These tags are compliant with NFC Forum Type 2 Tag and ISO/IEC14443 Type A specifications.    In phacDiscLoop.h modify the max number of cards supported (two cards for this demonstration):   #define PHAC_DISCLOOP_CFG_MAX_CARDS_SUPPORTED 0x02U      In NfcrdlibEx3_NFCForum.c add the following code in LoadDiscoveryConfiguration():   static phStatus_t LoadDiscoveryConfiguration() { ... /*Passive max typea devices*/ status = phacDiscLoop_SetConfig(pDiscLoop, PHAC_DISCLOOP_CONFIG_TYPEA_DEVICE_LIMIT, 2); CHECK_STATUS(status); }   A fix to the SW stack has to be made (Fix will be implemented in the next release): open "phacDiscLoop_Sw_Int_A.c", line 511, change if statement as below.     if((pDataParams->sTypeATargetInfo.bTotalTagsFound > 1) && ((bTypeATagIdx) < pDataParams->sTypeATargetInfo.bTotalTagsFound))     Until now, the reader is able to detect a maximum of two tags and work with up to two type A devices.   The activation of a tag at a given index is possible to the phacDiscLoop_ActivateCard() function.   Once this function is called, it will receive the discovery loop data parameters, the type of tag and the index of a tag to be activated.   The code will be added after knowing that multiple tags are detected and resolved in the NfcrdlibEx3_NFCForum.c file.   else if((status & PH_ERR_MASK) == PHAC_DISCLOOP_MULTI_DEVICES_RESOLVED) { /* * Multiple cards resolved. It enters here if DEVICE LIMIT > 1 and more than one devices are * detected and resolved. */ DEBUG_PRINTF (" \n Multiple cards resolved: \n"); /* Get detected technology type */ status = phacDiscLoop_GetConfig(pDiscLoop, PHAC_DISCLOOP_CONFIG_TECH_DETECTED, &wTagsDetected); CHECK_STATUS(status); /* Get number of tags detected */ status = phacDiscLoop_GetConfig(pDiscLoop, PHAC_DISCLOOP_CONFIG_NR_TAGS_FOUND, &wNumberOfTags); CHECK_STATUS(status); DEBUG_PRINTF ("\tNumber of tags: %d \n",wNumberOfTags); /* Code */ ... } Note: The code to be inserted in the comment /* Code */ is below in the Code section of this document.   The demonstration will be as simple as activating one tag, read its NDEF message, activate the second tag and read its NDEF message as well so that we make sure the activation process is performed correctly.   Each tag was previously written with a text NDEF message respectively.   Tag 1: Text: Hallo! Language: de   Tag 2: Text: ¡Hola! Language: es   Writing to a tag can be done by making use of our TagWriter app available in the play store: NFC TagWriter by NXP - Aplicaciones de Android en Google Play    Code section:   uint8_t bTagState1; /* Tag 1 */ /* Activate tag at index 0 */ status = phacDiscLoop_ActivateCard(pDataParams, PHAC_DISCLOOP_TECH_TYPE_A, 0x00); /* Check for NDEF presence */ status = phalTop_CheckNdef(palTop, &bTagState1); /* Read NDEF message */ status = ReadNdefMessage(PHAL_TOP_TAG_TYPE_T2T_TAG); DEBUG_ERROR_PRINT(status); /* Tag 2 */ /* Activate tag at index 1 */ status = phacDiscLoop_ActivateCard(pDataParams, PHAC_DISCLOOP_TECH_TYPE_A, 0x01); /* Check for NDEF presence */ status = phalTop_CheckNdef(palTop, &bTagState1); /* Read NDEF message */ status = ReadNdefMessage(PHAL_TOP_TAG_TYPE_T2T_TAG); DEBUG_ERROR_PRINT(status);   Behavior shown in the console monitor:   NFC Forum Example:       This implementation demonstrated the activation of two type A tags at a given index. I hope this is of great help!   Best regards, Ivan. Original Attachment has been moved to: Project-files.zip
View full article
         
View full article
DISCLAIMER APPLICABLE TO THIS DOCUMENT CONTENTS: This post contains a guide of how to use i.MXRT1050 demoboard with other NXP demoboards to demonstrate Secure access to industrial IOT, using NFC, embedded secure element and MCU (see picture below). A ready to use package including preparation of a secure element, and of a MIFARE DESFire EV2 card can be used as 3-step authentication example using symmetric AES keys; a session key will be generated inside SE050 which will be exported to i.MXRT1050 which will handle contactless communication thru CLRC663 plus frontend. This document is structured as follows: Hardware Requirements: Following hardware is required to run the project: i.MXRT1050 EVKB development board plus referred TFT LCD Display BLE-NFC-V2 arduino-friendly board. OM-SE050ARD, embedded secure element arduino-friendly R3 board.   1. Overview of i.MXRT1050 EVKB: The i.MXRT1050 EVKB development board provides the ideal platform for evaluation of and development with the i.MX RT1050 crossover processor, featuring NXP’s advanced implementation of the Arm ® Cortex ® -M7 core. The i.MX RT1050 EVK is a 4-layer through-hole USB-powered PCB. The board includes a high performance onboard debug probe, audio subsystem and accelerometer, with several options for adding off-the-shelf add-on boards for networking, sensors, display and other interfaces. This core operates at speeds up to 600 MHz to provide high CPU performance and best real-time response. Support for Amazon FreeRTOS ™ available within the MCUXpresso SDK.The i.MX RT1050 EVK board is now supported by Arm ® Mbed ™ OS and Zephyr ™ OS, both open source embedded operating systems for developing the Internet of Things. i.MXRT1050 EVKB board supported devices Processors and Microcontrollers i.MX RT Series i.MX-RT1050 : i.MX RT1050 Crossover Processor with Arm ® Cortex ® -M7 core Sensors 6-Axis FXOS8700CQ : Digital Motion Sensor - 3D Accelerometer (±2g/±4g/±8g) + 3D Magnetometer Interfaces USB PD-PHY and CC-Logic PTN5110 : USB PD TCPC PHY IC Power Management Load Switches NX3P190UK : Logic controlled high-side power switch NX5P3090UK : USB PD and type C current-limited power switch The i.MXRT1050 EVKB is fully supported by the MCUXpresso suite of tools, which provides device drivers, middleware and examples to allow rapid development, plus configuration tools and an optional free IDE. MCUXpresso software is compatible with tools from popular tool vendors such as Arm and IAR, and the i.MXRT1050 EVKB may also be used with the popular debug probes available from SEGGER and P&E Micro.   As final touch to this demonstrator, one LCD display will be added in order to show "access control" check result when approaching a MIFARE DESFire EV2 card to the Reader antenna, without the use of a computer console.Connection between i.MXRT1050 EVKB board and LCD Display requires attachment of two flat cables, one for touch-screeen functionality and the other for controlling Display itself.   Click here to order Touchscreen LCD Display thru buy direct:                                          P/N: RK043FN02H-CT 12NC:935358709598   2. BLE-NFC-V2: It is easier to use the BLE-NFC-V2 board due to four Arduino compliant male connectors. Current version has only double row-male connectors which imposes that BLE-NFC-V2 board will be the last board stacked on top of other arduino boards. The following figure shows the pin mapping between the two boards.   Pin Function i.MXRT1050  (Arduino connector # - Pin #) CLRC663 plus NFC BLE V2 (Arduino connector # - Pin #) MOSI J24-5 MOSI J10-P14 MISO J24-4 MISO J10-P12 SPI CLK J24-6 SCK J10-P10 SPI CS J24-3 SSEL J10-P16 RESET J22-6 CLRCL_NRST J12-P6 IRQ J22-5 IRQ J12-P8 IFSEL0 J24-7 GND IF0 Via R11 IFSEL1 J25-4 VCC IF1 Via R9 GND J25-6 GND GND J11-P11   Connections between i.MXRT1050 EVKB Board and NFC BLE V2   3 OM-SE050ARD: SE050 Arduino ® Compatible Development Kit The OM-SE050ARD is the flexible and easy-to-use development kit for the EdgeLock™ SE050 Plug & Trust product family. It can be used in various ways for example via the Arduino interface compatible to any board featuring an Arduino compatible header, including many i.MX, LPC and Kinetis ® boards, or via a direct I 2 C connection. This kit allows evaluation of the SE050 product family features and simplifies the development of secure IoT applications. More information can be found in the respective Application Note AN12395. Preparing hardware for "Secure Access to Industrial IOT demo" at i.MXRT1050 EVKB   Reworking i.MXRT1050 EVKB: It is necessary to short circuit 4 empty resistor pads: R278, R279, R280 and R281 – they connect SPI from i.MX1050 until Arduino SPI pads, which will be used by NFC BLE V2 board.   Reworking NFC-BLE V2 board: It is necessary to cut at least one male pin to avoid conflict with OM-SE050ARD board (better would be to cut first 2 pins):   Configuring OM-SE050ARD board jumpers:     Final HW configuration of these three boards altogether: Since NFC BLE V2 has only male connectors, OMSE050ARD board is first connected to i.MX1050 EVKB, then NFC BLE V2 is plugged on top of this latest pcb.       Running "Secure Access to Industrial IOT demo" at i.MXRT1050 EVKB:   If this is the first time you’re using i.MXRT1050 EVKB board, follow this link  i.MXRT1050 board overview . Make sure to install the SDK package for i.MXRT1050 EVKB which is required for the project below to run. Download the following zip package Access_RT_v_1_0_18092019.zip. This file is split in two parts and includes 3 functionalities in one MCUxpresso project: Preparation of MFDFEV2 card The touch screen display will offer three functionalities. By default, the first screen will be "Authenticate" functionality. When you choose the arrow to the right, you'll find TAB with word START, that you'll touch when you need to prepare a MIFARE DESFire EV2 card with suitable application and AES keys used for demonstrator. Just place a virgin card on top of Reader antenna, and press "START" button and check with Terminal on MCUxpresso to check sequence of actions to personalize one DESFire EV2 card. You may also use Teraterm to monitor the execution of DESFire card personalization, by inspecting the COM number used by i.MXRT1050 board.     Preparation of SE050 with proper keys    When you choose the arrow to the left once, you'll find TAB with word Authenticate; if you do it again, then you'll the word "START", which you will touch when you need to prepare a virgin OM-SE050ARD demoboardcard with suitable application and AES keys used for demonstrator. Just press "START" button and check with Terminal on MCUxpresso to check sequence of actions to personalize one SE050 board. You may also use Teraterm to monitor the execution of SE050 key provisioning, by inspecting the COM number used by i.MXRT1050 board. After steps 2.a and 2.b have been done to obtain preparation of one Secure element as well as preparation of one MIFARE DESFire EV2 card, then select using < and > keys the Default Display menu, containing word "Authenticate" : just place DESFire EV2 card on top of NFC antenna and press "Authenticate". If the DESFire EV2 card is the one you have personalized, you'll see a Locker icon that will show "Open locker" , that is "Access granted action". If you place other cards, "Locker icon"will stay closed, that is "Access denied". Again, use MCUxpresso Terminal or use Teraterm to monitor the execution of DESFire EV2 authentication steps with SE050 by inspecting the COM number used by i.MXRT1050 board. Available Resources: Application Note Secure Access to Industrial IoT: https://www.nxp.com/docs/en/application-note/AN12569.pdf  Quick start guide to integration of SE050 with i.MXRT1050 https://www.nxp.com/docs/en/application-note/AN12450.pdf i.MXRT1050 EVKB i.MX RT1050 Evaluation Kit | NXP  BLE-NFC-V2 https://www.nxp.com/products/identification-security/rfid/nfc-hf/nfc-readers/clrc663-iplus-i-and-qn902x-nfc-bluetooth-low-energy-solution-for-consumer-applications:BLE-NFC SE050: www.nxp.com/SE050 Porting guidelines of P&T MW to other non-NXP MCU's:  https://community.nxp.com/t5/Secure-Authentication/Does-the-EdgeLock-SE050-Plug-Trust-middleware-support-non-NXP/m-p/1686723#M1305  https://www.nxp.com/docs/en/application-note/AN12448.pdf  In the attachment area, you'll find:  one bundle zip file split in 2 files: Access RT...zip001.zip and ....zip001.zip. download both files, unzip them in one laptop directory, then you may re-zip them and import in MCUxpresso. They include draft of all three functionalities of secure access to industrial iot hands-on: DESFire EV2 card preparation, SE050 trust provisioning (with keys) and authentication of card with current installed SE050.
View full article
This porting guide is for FRDM-K82F, and it can also be used for any other platform supported by KSDK 2.2. The released NXPNCI-KDS_Example_KSDK2.2 is based on FRDM-K64F, so before porting, we need to configure and download KSDK 2.2 for FRDM-K82F. Please make sure you have selected Kinetis Design Studio before downloading. After downloading, extract the package to some folder like below: and change PROJECT_KSDK_PATH to this folder: Change project settings as below: Remove all files in the folder of drivers, and import new source files as below: and similar procedure for "startup" folder and "utilities" folder: Replace the source files in board folder with the files from some ksdk demo like hello_world: FRDM-K82F uses PTC3 for NCI_IRQ pin, PTC9 for NCI_VEN pin, and PTA1 and PTA2(I2C3) as the I2C interface. so add definition in board.c and modify BOARD_InitPins() as below: Change linker settings: -Build -Debug settings -Test Result:
View full article
The demonstration aims at how to protect the NDEF messages in the NTAG, here we use OM5569-NT322ER | NTAG I2C plus Explorer Kit + reader | NXP  as this dev kit contains NTAG as well as the NFC reader. The NTAG I2C plus has the unprotected memory starting from page 04h of sector 0, and NDEF messages are stored there. Referring to 8.3.11 of the data sheet, AUTH0 specifies the starting page to be protected, ACCESS[NFC_PROT] enables read&write password protection from NFC interface, PWD and PACK are for password configuration, but before changing any of above , you have to do a password authentication as below: Then you may select sector 0 and read the contents starting from E3h. Here FFh is the default value for AUTH0.  Now you may change the AUTH0,ACCESS[NFC_PROT] , PWD and PACK as you wish, for example, something like below: read the data from E3h to E6h and change the corresponding bytes in one write. The video shows how to read the NDEF message under password protection.  
View full article
SPIM module is one of the master interfaces provided by PN7462 , which is a 32-bit ARM Cortex-M0-based NFC microcontroller, and users may use this interface to connect with up to two SPI slave devices. The NFC reader library provides SPIM driver code in phHal/phhalSPIM, and users may directly use the following APIs in their application to implement simple SPI transaction, just like what is done  in the demo of "PN7462AU_ex_phExHif". While this demo has limitation with some SPI nor flash devices, which need a write-read operation in one NSS session, for example, the SPI nor flash device on OM27462 as below: Please note to solder R202 and connect it to 3V3 to make sure nHold pin has pull-up out of POR. The following is one of the command sets this device supports: This command contains 1 write(9F) followed by 3 read operations in one NSS session, but if you implement it with phhalSPIM_Transmit() and phhalSPIM_Receive() as below: status = phhalSPIM_Transmit(PH_EXHIF_HW_SPIM_SLAVE, PH_EXHIF_HW_SPIM_INIT_CRC, PH_EXHIF_HW_SPIM_APPEND_CRC, PH_EXHIF_HW_SPIM_CRC_INIT, 2, cmd_buf, PH_EXHIF_HW_SPIM_CRC_OFFSET);    status = phhalSPIM_Receive(PH_EXHIF_HW_SPIM_SLAVE, PH_EXHIF_HW_SPIM_INIT_CRC, PH_EXHIF_HW_SPIM_CRC_INIT, data_length, dst, PH_EXHIF_HW_SPIM_CRC_OFFSET);" You will have the following result: expected: NSS   \__________________________/ MOSI     CMD A7-A0 MISO                            DATA       actual:                         NSS   \____________||______________/ MOSI     CMD A7-A0 MISO                           DATA so the pulse between the write and read is the problem, and here we have to handle the NSS line manually, with the help of NSS_VAL and NSS_CONTROL bits in SPIM_CONFIG_REG. so the code should be like this:   Assert NSS   status = phhalSPIM_Transmit(PH_EXHIF_HW_SPIM_SLAVE, PH_EXHIF_HW_SPIM_INIT_CRC, PH_EXHIF_HW_SPIM_APPEND_CRC, PH_EXHIF_HW_SPIM_CRC_INIT, 2, cmd_buf, PH_EXHIF_HW_SPIM_CRC_OFFSET);    status = phhalSPIM_Receive(PH_EXHIF_HW_SPIM_SLAVE, PH_EXHIF_HW_SPIM_INIT_CRC, PH_EXHIF_HW_SPIM_CRC_INIT, data_length, dst, PH_EXHIF_HW_SPIM_CRC_OFFSET);"   De-assert NSS The NSS line assert and de-assert function can be implemented with register bit level APIs, just like below:             PH_REG_SET_BIT(SPIM_CONFIG_REG, NSS_VAL);//de-assert NSS             PH_REG_SET_BIT(SPIM_CONFIG_REG, NSS_CTRL);             PH_REG_CLEAR_BIT(SPIM_CONFIG_REG, NSS_VAL);//assert NSS Please also include the following header files in your application code. #include "ph_Reg.h" #include "PN7462AU/PN7462AU_spim.h" Please notice that phhalSPIM_Transmit() and phhalSPIM_Receive() are Rom based function, which clear NSS_CTRL bit by default. We can not change ROM API's behave but fortunately we have phhalSPIM_TransmitContinue() and phhalSPIM_ReceiveContinue() instead. so the final solution will be like below: Assert NSS   status = phhalSPIM_TransmitContinue(1, cmd_buf);    status = phhalSPIM_ReceiveContinue(3, dst);   De-assert NSS This doesn't mean phhalSPIM_Transmit() and phhalSPIM_Receive() are useless, because they can also help up to configure the SPI master interface, if you don't want to use register bit level API to initial the SPIM module manually. Please note to use 1 byte for write/read length to make these two functions work properly. so the whole pseudo code is like below: phhalSPIM_Init(PH_HW_SPIM_TIMEOUT) ; phhalSPIM_Configure(PH_HW_SPIM_SLAVE, PH_HW_SPIM_MSB_FIRST,                 \                                     PH_HW_SPIM_MODE, PH_HW_SPIM_BAUDRATE,  \                                     PH_HW_SPIM_NSSPULSE, PH_HW_SPIM_NSSPOL) ; status = phhalSPIM_Transmit(PH_EXHIF_HW_SPIM_SLAVE, PH_EXHIF_HW_SPIM_INIT_CRC, PH_EXHIF_HW_SPIM_APPEND_CRC, PH_EXHIF_HW_SPIM_CRC_INIT, 1, cmd_buf, PH_EXHIF_HW_SPIM_CRC_OFFSET);    status = phhalSPIM_Receive(PH_EXHIF_HW_SPIM_SLAVE, PH_EXHIF_HW_SPIM_INIT_CRC, PH_EXHIF_HW_SPIM_CRC_INIT, 1, dst, PH_EXHIF_HW_SPIM_CRC_OFFSET);" Assert NSS   status = phhalSPIM_TransmitContinue(1, cmd_buf);    status = phhalSPIM_ReceiveContinue(3, dst);   De-assert NSS The following steps show how to create a new project based on NFC reader library, please refer to https://www.nxp.com/docs/en/user-guide/UM10883.pdf  on how to import the NFC reader library. 1. Create a new project after importing the NFC reader library. 2. if you installed PN7462 support package, you will see this: 3. add a link to NFC reader lib: 4. add path and enable NFC reader lib in the project: 5. delete cr_startup.c and create the main code as well as the header file: 6. Build result: 7.Debug result: To fetch the ready demo, please submit a private ticket via the guide of https://community.nxp.com/docs/DOC-329745 . Hope that helps, Best regards, Kan
View full article
The NXPNCI-KDS_Example for the PN7120/PN7150 Arduino interface boards available in NXP webpage at the time of publishing this document includes a project compatible with KSDK v2.0 for FRDM-K64F platform. With the latest KSDK v2.1 some changes in the drivers along with the later FreeRTOS v9.0.0 make the build process fail when following the instructions in the application note AN11845 NXP NCI KDS Example due to incompatibilities. Meanwhile until the project in NXP webpage is updated there is a temporary project attached to this document fixed to work with KSDK v2.1. The steps to build this project are the same as explained in the appnote, summarized below: - Download and install KSDK v2.1 for FRDM-K64F using MCUXpresso SDK online builder: Welcome to MCUXpresso | MCUXpresso Config Tools  Create a new workspace in KDS IDE. Import the "NXPNCI-KDS_Example_KSDK2.1" project from the archive file. Update the PROJECT_KSDK_PATH build variable according to the installation path of KSDK v2.1. Build the project. For more details please refer to the application note AN11845. Regards! Jorge Gonzalez
View full article
DISCLAIMER APPLICABLE TO THIS DOCUMENT CONTENTS:   This post contains a guide of how to use LPC55S69 demoboard with other NXP demoboards to demonstrate Access control using NFC, one embedded secure element and an MCU (see picture below). A ready to use package including preparation of a secure element, and of a MIFARE DESFire EV2 card can be used as 3-step authentication example using symmetric AES keys; a session key will be generated inside SE050 which will be exported to LPC55S69 which will handle contactless communication thru CLRC663 plus frontend.   This document is structured as follows: Hardware Requirements: Following hardware is required to run the project: LPC55S69-EVK development board. OM-SE050ARD development board. CLEV6630B board or BLE-NFC-V2 board. 1. Overview of LPC55S69-EVK: The LPCXpresso55S69 development board provides the ideal platform for evaluation of and development with the LPC55S6x MCU based on the Arm® Cortex®-M33 architecture. The board includes a high performance onboard debug probe, audio subsystem and accelerometer, with several options for adding off-the-shelf add-on boards for networking, sensors, displays and other interfaces. The LPCXpresso55S69 is fully supported by the MCUXpresso suite of tools, which provides device drivers, middleware and examples to allow rapid development, plus configuration tools and an optional free IDE. MCUXpresso software is compatible with tools from popular tool vendors such as Arm and IAR, and the LPCXpresso55S69 may also be used with the popular debug probes available from SEGGER and P&E Micro.   2. Overview of OM-SE050ARD demoboard: The OM-SE050ARD is the flexible and easy-to-use development kit for the EdgeLock SE050 Plug & Trust product family. It can be used in various ways for example via the Arduino interface compatible to any board featuring an Arduino compatible header, including many i.MX, LPC and Kinetis boards, or via a direct I 2 C connection. This kit allows evaluation of the SE050 product family features and simplifies the development of secure IoT applications. More information can be found in the respective Application Note AN12395.   2.1 Connections between OM-SE050ARD and LPC55S69 EVK   OM-SE050ARD LPC55S69 (Conn.# - Pin #) Port Function Name SE_SDA (J22-1) P24-6 also P17-3 PIO1_21 FC4_I2C_SDA_ARD SE_SCL (J22-4) P24-5 also P17-1 PIO1_20 FC4_I2C_SCL_ARD +5V_PC (J22-2)     VDD_TARGET GND (J22-3)     GND 2.2 Jumper settings on OM-SE050ARD to connect it to LPC55S69 EVK Connect SE050 to LPC55S Arduino stackable headers and change jumper J14 as: This connects SE_VDD directly to 3V3 and bypasses enable signal. This is required because enable pin on LPC55S coincides with Silex-2401 SPI pins so we cannot use SE_EN signal to drive SE_VDD.   3. Overview of NFC Front end boards working with LPC55S69 EVK board for this example:   3.1 BLE-NFC-V2: It is easier to use the BLE-NFC-V2 board since less changes have to made on the board as compared to the CLEV6630B board. The following figure shows the pin mapping between the two boards. It is advisable to add a pull-up resistor (4k7 to VCC) on CLRC663 plus signal IRQ.   3.2 CLEV6630B board: The CLEV6630B board consists of CLRC663 plus (NFC frontend) connected by default to an LPC1769 µC via SPI. However, the board is made in such a way that the LPC1769 MCU can be bypassed to connect to an external MCU (in our case the LPC55S69) easily. For doing so: Six resistors from the board need to be removed. These are highlighted in red in the Figure 1: Use the SPI pin connectors available on the left-hand side, on the board edge to connect to external MCU (LPC55S69 in this case) Solder jumper wires onto the following pins of CLEV6630B Board:  GND IRQ CLRC_NRST SSEL MOSI MISO SCK IF0 IF1          The CLEV6630B is shown in Figure 2 after the required changes have been made to it (Removal of resistors and soldering of wires).   Now connect the two boards as follows: Signal function LPC55S69 (conn. # - Pin #) Port CLEV6630B MOSI P17-10 PIO0_20 MOSI MISO P17-12 PIO0_19 MISO SPI SCK P17-14 PIO0_21 SCK SPI CSEL P17-6 PIO1_11 SSEL RESET P18-11 PIO0_15 CLRCL_NRST IRQ P18-3 PIO1_10 IRQ GND P17-7   GND  As final touch to this demonstrator, one LCD display will be added in order to show "access control" check result when approaching a MIFARE DESFire EV2 card to the Reader antenna, without the use of a computer console. Connection between LPC55S69 board and LCD Display:   TFT LPC55S69 (Jumper # - Pin #) Port      SPI_CLK D13 (P17-9) PIO1_2      SPI_MISO D12 (P17-11) PIO1_3      SPI_MOSI D11 (P17-13) PIO0_26      SPI_CS_TFT D10 (P17-15) PIO1_1      GPIO_LCD_BL D9 (P17-17) PIO1_5      GPIO_LCD_DC D7 (P18-1) PIO1_9 5V 5V   GND GND     Click here to order 2.8 inch TFT Display from Waveshare: P/N: 2.8 inch TFT Touch Shield Brand       4. Running "Secure Access to Industrial IOT demo" at LPC55S69:   If this is the first time you’re using LPC55S69-EVK board, follow the getting started guide first à  LPC55S69-EVK | NXP . Make sure to install the SDK package for LPC55S69-EVKboard which is required for the project below to run. Download the ‘demobinaries.zip' package which you will find attached to this post. This zip file contains 2 bin files: ex_prepareCard.bin - upload this binary file to LPC55S69 when you need to prepare a MIFARE DESFire EV2 card with suitable application and AES keys used for demonstrator. Upload bin file to LPC55S69 by using MCUxpresso. Just place a virgin card on top of Reader antenna, and reset MCU board by clicking on "RESET KEY" push button. ex_prepareSe050.bin - upload this binary file to LPC55S69 when you need to prepare a new SE050 with suitable AES keys to be used in this demo. Just  upload binary using MCUxpresso; connect a virgin OM-SE050ARD on LPC55S69 arduino connectors, connect micro USB connector to MCU board, and reset MCU by clicking "RESET KEY". After steps 2.1 and 2.2 have been done to obtain preparation of one Secure element as well as preparation of one MIFARE DESFire EV2 card, then upload the next bin file to LPC55S69 using MCUxpresso: ex_Ev2Auth_se05x.bin Alternatively, you can import the whole project in your MCUxpresso environment. Download the file EmbeddedWorld2019DemoLatest.zip at end of this page. Import this zip file project in MCUxpresso environment Now that the package has been imported to the MCUXpresso IDE (via drag and drop), click on Debug icon from the Quickstart panel to begin a debug session. Once the debug session has started, click on the run icon to run the code: PICTURE TO BE UPDATED MCUXPRESSO PICTURE TO BE UPDATED The project should be running now. The project contains a closed loop that tries to check presence of a card on top of Reader. Here is how the output looks like in LCD Display. Press the button reset, and you will see the text "Secure Access to Industrial IOT demo 2019" PICTURE TO BE UPDATED Then press the button "Wake-up". Afterwards NFC reader will enter in a loop in which he will look for a card to authenticate. If there are no cards, he will soon show the red allert with text "Access denied" Bring any NFC card near the frontend’s antenna (or in presence of no card) LCD display will show a message in RED "ACCESS DENIED". PICTURE TO BE UPDATED Only in case the "prepared DESFire EV2" card is placed on top of reader, in the picture below, we can see message in GREEN "ACCESS GRANTED" PICTURE TO BE UPDATED.     Available Resources: Porting NFC Reader Library to i.MX RT1050. (Detailed Description of porting) https://community.nxp.com/docs/DOC-341843 LPC55S69 https://www.nxp.com/products/processors-and-microcontrollers/arm-based-processors-and-mcus/lpc-cortex-m-mcus/lpc5500-cortex-m33/lpcxpresso55s69-development-board:LPC55S69-EVK BLE-NFC-V2 https://www.nxp.com/products/identification-security/rfid/nfc-hf/nfc-readers/clrc663-iplus-i-and-qn902x-nfc-bluetooth-low-energy-solution-for-consumer-applications:BLE-NFC CLEV6630B Product Information|NXP  SE050: www.nxp.com/SE050
View full article
This post contains a step by step guide of how to use PN7150 with i.MX RT1060. This document is structured as follows: Overview of PN7150 PN7150 is a Plug-and-Play all-in-one NFC solution for easy integration into any OS environment like Linux and Android, reducing Bill of Material (BoM) size and cost. The embedded Arm® Cortex®-M0 microcontroller core is loaded with the integrated firmware, simplifying the implementation as all the NFC real-time constraints, protocols and the device discovery (polling loop) are processed internally. In few NCI commands, the host SW can configure the PN7150 to notify for card or peer detection and start communicating with them. It has the following salient features: Full NFC forum compliancy with small form factor antenna Embedded NFC firmware providing all NFC protocols as pre-integrated feature Direct connection to the main host or microcontroller, by I2C-bus physical and NCI protocol Ultra-low power consumption in polling loop mode Highly efficient integrated power management unit (PMU) allowing direct supply from a Battery Hardware Requirements      1. OM5578/PN7150ARD      2. i.MX RT1060 EVK Evaluation Board + usb micro cable        Using PN7150 with i.MX RT1060 Hardware Connections The hardware connections are simple. Both the EVKB-IMXRT1060 board and OM5578/PN7150ARD board have an Arduino interface. So, mount the PN7150ARD board with male Arduino connector onto the female Arduino connector of the EVKB-IMXRT1060 board.  Running the Demo If this is the first time you’re using EVK-MIMXRT1060 board, follow the getting started guide first: i.MX RT1060 Evaluation Kit | NXP . Make sure to install the SDK package for EVK-MIMXRT1060 board which is required for the project to run.   Download the ‘evkbimxrt1060_PN7150’ package which you will find attached to this post. Drag and drop the downloaded package to the “Project Explorer” tab of your MCUXpresso IDE workspace (If you don’t have MCUXpresso, it can be downloaded for free from here: https://www.nxp.com/support/developer-resources/software-development-tools/mcuxpresso-software-and-tools/mcuxpresso-integrated-development-environment-ide:MCUXpresso-IDE Now that the package has been imported to the MCUXpresso IDE (via drag and drop), click on Debug icon from the Quickstart panel to begin a debug session. Once the debug session has started, click on the run icon to run the code: After step 3, the project should be running now. The project contains basic discovery loop functionality. Here is how the output looks in the console tab on MCUXpresso: Bring any NFC card near the PN7150 board’s antenna and the output console will show the detection and type of the card. For example, in the picture below, we can see that type 4 card was detected: Available Resources AN11990 NXP-NCI MCUXpresso example document. (https://www.nxp.com/docs/en/application-note/AN11990.pdf) The example project explained in this project was ported to i.MX RT1060 using section 5.3 and 6 of the above mentioned document. PN7150 datasheet (https://www.nxp.com/docs/en/data-sheet/PN7150.pdf) PN7150 User Manual (https://www.nxp.com/docs/en/user-guide/UM10936.pdf) PN7150 NFC Controller SBC Kit User Manual  (https://www.nxp.com/docs/en/user-guide/UM10935.pdf)
View full article
The latest NFC reader library supports lpc1769 which is a cortex M3 controller with LPCopen lib supports, so in theory , it should supports other controllers supported by LPCopen, but we have to test this, so we choose , for example, lpc11u37, a cortex M0 based controller for this porting. Platform for this porting: LPC11u37h-Xpresso Rev A: CLRC663 plus based CLEV663B Blueboard 3.0. Please refer to Prepare CLEV663B board for NFC reader library porting  for details. They are connected via LPCXpresso ports. Now we may start the porting, the IDE we use in this porting is MCUXpresso 10.1.1 1. Download and import the latest NFC reader library for CLEV6630B, as it supports CLRC663 plus. For how to import the project, please refer to https://www.nxp.com/docs/en/application-note/AN11211.pdf . 2. Download LPCopen for LPC11u37h and import it as well. 3. Now we may choose some demo in the NFC reader library, for example, the NfcrdlibEx1_BasicDiscoveryLoop, and create new build configuration for lpc11u37h. 4.Select the correct MCU 5.Modify build settings Here we find LPC1769RC663 is defined, so we have to find what is related with this definition in the code and change it/them. Fortunately they are not too many. you may find they are just related with board header file including or something like that, so it is not difficult to modify them. 6. Add new header file for the new board definition 7. add the new board definition 8. As we now use LPCopen lib for LPC11u37h instead, so we have to change the including path. As LPC11u37h is cortex M3 based, so we have to setup FreeRTOS for M0 support: and add the source code for building: 9.Change the link libraries and including path 10.Set the correct ref projects to use LPCopen for LPC11u37h. 11. Some changes in LPCopen library: 1)enable semihosting debug 2) add startup source code for the demo, this C file can be reused/imported from the some lpcopen project. 12. After the above steps, we still have to change the source code in DAL: You know , due to different version of LPCopen library,  some function definition might be changed, and different LPCXpresso boards has different pin connection to the LPCXpresso ports, so it is recommended checking the board schematics and the examples in lpcopen project , find the proper function calls to implement the source codes in the DAL folder. When you finished , the porting is done. 13. As the final image size is greater than 128K, we have enable optimization for size. 14.Demo test ok. Now , we know lpc11u37 can be supported by the latest NFC reader library, so the porting should also be applied for other Cortex M0 controllers, and it is recommended the controller with large internal flash size, better greater than 128K, but anyway, in this porting, I didn't enable the size optimization for LPCopen library, so there might be possibility to have a smaller size image at last...
View full article
Hello NFC Community, This document describes how to write multiple NDEF Text Record by making use of NFC TagWriter app by NXP. First of all, download the TagWriter app from the Play Store: NFC TagWriter by NXP - Apps on Google Play  1) Once downloaded, go to the Write tags section. 2) In this case, a NDEF text record will be written. 3) Write a text message in the TextBox and press the Save & Write Button. 4) Now, press the ADD MORE RECORD Button so that another record can be added to the content to be written in the tag. 5) Select Plain Text again.   6) Same, procedure as in 3. 7) Finally, Tap the card and press the DONE Button. I hope this is of great help! Ivan R.
View full article