Hello NFC and Kinetis enthusiasts, NTAG I2C plus tag ICs offer both, a contact (I2C) and a contactless interface (NFC) to ease the development of IoT, home-automation and consumer applications. The target of this document and the example projects is to show how NTAG I2C plus can act as the bridge from a host NFC device, like a smartphone or PC, to an embedded board such as a Kinetis Freedom board. 2 main functionalities are demonstrated: embedded board control via NFC and firmware upgrades over NFC. Board control with NFC enabled device NTAG I2C plus provides an easy way of sending/receiving any kind of data between a product embedding an MCU to a host NFC device (e.g. smartphone). Some use cases include product configuration, control or data sensing. A major advantage is that we can have a customized application or graphic interface in the smartphone instead of expense of an LCD screen for the embedded board. Bootloader over NFC Firmware updates in the field are a very common practice for products based in an embedded system. The main advantages of a bootloader over NFC are the simplicity and the non intrusive nature, as it communicates using NFC antennas, i.e. without any wires or physical connections. DEMO PROJECT The next picture shows the setup and connections from the NTAG I2C Plus antenna board to the FRDM-K64F. Hardware - Kinetis Freedom board FRDM-K64F - NTAG I2C Plus Antenna board or flex antenna with the NTAG I2C plus IC. Software - Kinetis Software Development Kit (KSDK) v2.0 - Kinetis Design Studio (KDS) v3.2 - NTAG I2C Demo Android application. Available from Google Play. :smileyalert: Note: Please verify that your smartphone supports NFC. Otherwise the Android app can be installed but it cannot be used for interfacing with the NTAG I2C Plus IC. TESTING THE DEMO PROJECTS There are two KDS projects attached to this document: - NTAG_I2C_Plus_FRDMK64_Demo: Demonstrates the transfer of data between the phone and the MCU. - NTAG_I2C_Plus_FRDMK64_Bootloader: Provides a mean to update the firmware in the Kinetis MCU. The application must be prepared to be placed at an offset of 0x4000 in the MCU internal flash. To load any of these demos please open the corresponding project in KDS IDE, build the project and start a debugger session to program the K64. NTAG_I2C_Plus_FRDMK64_Bootloader 1- In FRDM-K64F, SW2 must be pressed during reset to enter bootloader mode. Hence the 2 usual ways are:+    A) If the board is powered, press and hold SW2 and then press Reset button.    B) When the board is not powered, press and hold SW2 and then plug the USB cable. 2- From the Android demo app go to the "Flash" option. Then click on "Select from Storage" to browse for the application binary file. :smileyinfo: Note: For this bootloader example, the application including the vector table must be relocated to an offset of 0x4000 in Flash. 3- Finally tap the phone to the NTAG I2C Plus antenna and hold it steady during the flashing progress. When the app shows "Flash Completed" the new application starts executing. NTAG_I2C_Plus_FRDMK64_Demo :smileyalert: NOTE: By default the demo project has the 0x4000 offset, so please build the project and then load the generated binary using the bootloader as described above. - Bring the NFC enabled phone near the NTAG I2C Antenna. - Verify transfer is already in progress, by checking the "Board Status". - Press the Orange/Blue/Green buttons in the Android app to change the color of the RGB LED. - Enable the checkbox for "Enable Temperature Sensor" to see the reading of the K64 internal temperature. I hope these demo projects are useful. Please feel free to share your comments or ask any questions. Regards! Jorge Gonzalez

The NFC reader library is supporting multiple frontends. For a customer this might become a more difficult to use, if only the part for one of the frontend chips is needed. To enhance the readability and usability, you can remove the support for not used reader ICs by simply removing the folders below NxpRdLib/comps/phhalHw/src. For instance: if you only want to use the RC663, you could simply delete the folders Pn5180, Rc523. The result would be a library that only supports RC663. This short screen recording shows the steps to reduce the number of supported Frontends.

AN13189 provides guidelines for the integration of PN7160 NXP NCI-based NFC controller to an Android platform from software perspective. But some developers found some compile issues when integrating PN7160 NFC package into Android 11.   This article describes how to fix the build error when you integrating PN7160 NXP NCI-based NFC controller to Android 11 system.  You need to follow the AN13189 (PN7160 Android porting guide ) first.  After you run the installation script install_NFC.sh, the following modification should be added to the source code. 1) Open package/apps/Nfc/nci/jni/Android.bp Add  "-DNXP_EXTNS=TRUE",   2 )  open system/nfc/src/Android.bp Add   "-DNXP_EXTNS=TRUE",     3 )   open packages/apps/Nfc/src/com/android/nfc/NfcService.java And add this: between isNfcSecureEnabled and setNfcSecure methods:             @Override         public IBinder getNfcAdapterVendorInterface(String vendor) {             if(vendor.equalsIgnoreCase("nxp")){                     return (IBinder) mNfcAdapter;             } else {                    return null;             }         }     Next, follow AN13189, complete the following steps in section 4.2. Then you can build the package successfully.  Thanks  @andraz_skupek .      

This page contains information about the supported NXP MCU/MPU and NXP NFC product combinations which have ready to use packages. These can be used as a reference. The table below contains link to where you can find the projects as well.    MCU ↓   NFC IC →  NTAG I²C  plus NTAG 5 PN7150 CLRC663 plus family* PN5180 i.MX RT1050 i.MX RT1050 + NTAG I²C plus i.MX RT1050 + CLRC663 plus   Video: Using i.MX RT1050 with CLRC663 plus family and the NFC Reader Library | NXP  i.MX RT1060 i.MX RT1060 + NTAG I²C plus  i.MX RT1060 + PN7150 i.MX 8M Mini i.MX 8M Mini + PN7150 (Andriod) i.MX 8M Mini + PN7150 (linux-yocto) i.MX 7 Dual Sabre i.MX7 Dual Sabre + PN5180 LPC1769 LPC1769 + CLRC663 plus LPC1769 + PN5180 LPC55S69 LPC55S69 + NTAG I²C plus LPC55S69 + NTAG 5 LPC55S69 + PN7150 LPC55S69 + CLRC663 plus LPC55S69 + CLRC663 plus + SE050 (smart lock) LPC11u37h LPC11u37 + PN7150 LPC11u37h + CLRC663 plus LPC11u68 LPC11u68 + PN7150 LPC82X LPC82X + PN7150 LPC845 LPC845 + CLRC663 plus Kinetis K82F K82F + CLRC663 plus K82F + PN5180 Kinetis K64F K64F + PN7150 K64F + CLRC663 plus Kinetis K63 K63 + PN7150 Kinetis K24 K24 + PN7150 KW41Z KW41Z + NTAG I²C plus KW41Z + NTAG 5 KW41Z + PN7150 *CLRC663 plus family: CLRC663 plus, MFRC630 plus, MFRC631 plus, SLRC610 plus For more information on the NFC products, please visit https://www.nxp.com/nfc