 Hello, and welcome to the NFC RFID tag segment of our ST25 NFC workshop. Before starting, make sure that you have the following boards, the ST25R3911B Discovery board and the GUI software, the cloud ST25TA tag board which comes with the ST25R3911B Discovery kit. You also need a micro USB cable. First plug the board to your PC via the USB micro cable. Click on demo board check. It should populate the dialogue boxes with firmware versions, demo board version and SCM32 unique ID. You should also click on calibration antenna and adjust regulators. Before we move forward with some hands-on exercises, let's do a quick review of the ST25TA product line. A typical NFC RFID tag is a memory with one RF interface. With its antenna, it received inducted power from the RF field generated by the reader. For standard RFID, we have products supporting ISO 15693 and ISO 14443B. The ST25TV is our latest ISO 15693 tags with memory size that is up to 64 kbit. Its data can be protected with 32-bit passwords. ST also makes ISO 14443B tag. I see it comes with features such as 32-bit counter and OTP bit. For NFC compliant tags, we make type 4 tags. Special features such as 128-bit passwords, 20-bit counters and field detect are available for some derivatives. Memory sizes range from 2kbit to 64 kilobits. We are going to go into details regarding our ST25TA product line. We will be discussing use cases. We go to the description of the ST25TA family variants or derivatives. We will discuss also the counter features and data protection. GPO features, we also talk about tuning capacitance and related ecosystem. The ST25TA product family has six main features. One, it has an ISO 14443RF interface. Two, it has up to 64 kbit of EEPROM memory. Three, 128-bit passwords for data protections. Four, 200 years of data retention and 1 million erase and write cycles. Five, it comes with a 20-bit counters. And six, configurable general purpose output signal for MCU wake-up. ST25TA tags can find their applications in smart industry where material identifications can be realized. PVCs or metal pipes, for example. In smart city, ST25TA can be used for ticketing and labels for tourism. And finally smart things can use ST25TA for Bluetooth or Wi-Fi pairing with wake-up. In wireless pairing, ST25TA can be used to store the Bluetooth or Wi-Fi hand handled and death message. A simple tab will pair your phone with a Bluetooth speaker or connected to a Wi-Fi network. The ST25TA can also be embedded into posters to give more information such as URLs. Going green with ST25TA and only carry one or two NFC business cards. A simple tab will store the contact information into the phone contact list. ST25TA can be included in consumer products to enable traceability and also protect the brand from clonings and fakes. ST low-density tags cover devices with 512-bit and 2K bits of data memory which are enough for applications such as NFC token, smart posters, gaming and NFC business cards. Data can be protected with 128-bit passwords and 20-bit counters. Devices available in son and bump English 8-inch wafer. The ST25TA O2K comes in two flavors P4 CMOS GPIO and D4 OpenDrain GPIO. It also comes in very small FPN5 package that is measured only 1.7 millimeter by 1.4 millimeters. The 50 picofair chip capacitance also allows small antenna design. The ST25TA 16K and ST25TA 64K are high-density tags with data memory of 16 kb and 64 kb respectively. The ST25TA 20-bit counters increment on each read or write events of the end-of-file. A registered setting allows user to configure the counter to increment on read or write. When the counter is disabled it will reset. Be aware that when the counter is enabled to increment there will be impact on timing of the read or write as some cycles are needed for the operation. There are two 128-bit passwords one for reading and one for writing. There is also option to permanently lock the memory in read or write. Two bytes in the CC file show the status of the lock or unlock. The state of the CMOS GPIO PIN can be configured as follow. MIP active when end-of-message updating is in progress. WIP active when writing is in progress. Interrupt controlled by the RF host to have the ST25TA producing a pulse at this pin. State mode RF host can control the state of the pin. RF busy all RF activities will trigger the event. Field detection active when the field is strong enough to establish communication. When choosing the CMOS version pull-up resistors are not needed but VCC and ground are required. Similar features as the ST25TA02K with CMOS GPIO PIN for the D version. Open drain means that external pull-up resistor is needed. So there are two chip capacitance values. The low density device has 50 picofarad chip capacitance implying antenna inductance of around 2.5 micro Henry. On the other hand the high density version has 25 picofarad chip capacitance which needs antenna inductance of around 5 micro Henry. The entire ST25TA support ecosystem can be accessed on ST.com. Register and log on to use our antenna design software known as the ST Design Suite and access the engineer-to-engineer community. Other items such as schematic bill of material and Gerber files can be found on most existing evaluation boards. They are also PC software tools, datasheets and mobile phone apps that can be found on App Store on either Android or iPhone. The cloud TA board is for evaluation of the ST25TA02K with CMOS GPIO PIN. The antenna is 18 millimeter in diameter and the device has 256 bytes of memory or that's roughly around 2k bit. Now let's complete an exercise involving NDEV message reading and writing. The goal of this exercise covers NDEV message supporting including reading and writing of the TAGS. Also we will see how native NDEV is supported on Android phone. We will need the ST25R3911B discovery board as an NFC reader. Of course you can also use your Android phone if the discovery board is not available. Step one click on the ST25TAG editor. This will launch a large menu. Click on ISO 14443A to choose the last item on the drop-down list. Now click on it. Click on the read NDEV message button and then click on the read NDEV message. This action will read the NDEV that is already on the TAG. Now we're going to write a new message. Before that we'll need to prepare the NDEV message. Click on prepare NDEV message button and choose the URL radio button. Now put in the URL http www.my-test-site.com then click on add record to message. Then step one choose the write NDEV message tab and you will see the NDEV record. Click on write NDEV message to write the record to the TAG. Notice the activity in the log below and make sure that the write was successful. Now you can click on the read NDEV message tab and proceed to read the NDEV message you just wrote. Now we're going to do a little bit more example on ST25TA. We want to show the level access to ST25TA and what is below the NDEV message layer. We will need to use the ST25R3911B discovery board and we will need to configure the GUI as we did earlier regarding demo board check and tender calibration and a chance of regulator. Then we'll put the board it on top on next to the reader board. Click on the ST25TA TAG editor button once the main GUI opens up. Once it opens use a drop-down menu under ISO 14443A to choose the ST25TA02K-P that will open up another GUI window. Now click on the large square button that does multiple commands. The RATS is then short for request for answer to select and PPS short for protocol and parameter selections. Once the button is clicked all the low-level commands will be executed and a new GUI windows open. Here standard APDU can be sent. First click on the NDEV TAG application select then click on select and read sequence button. Click on capacity contain file capability contain the file radio button then click on select and read sequence to get all the content of the CC file. Do similar operation with the system file and the NDEV file. That's it for the segment on the NFC TAG. Thank you