hce

I'm trying to get my ACR122 (usb) device to emulate a passive NFC tag, but am having difficulty getting the communication to occur properly. I'm hoping someone can see what I'm doing wrong here and help point me in the correct direction. The response on this other question ACR122 - Card Emulation pointed to a document at http://code.google.com/p/nfcip-java/source/browse/trunk/nfcip-java/doc/ACR122_PN53x.txt but when we follow this to the letter it doesn't behave as expected. We're using an Samsung Galaxy S3 Android 4.3 device for testing, and are seeing the below behaviour: Transmit

I have a ACR122U-A9, I want to card emulate with it. I ask who has done this point? Can you give me some suggestions? Now I have also other problems, when I put the white smartcard on this NFC reader, LED blinks only once. But when I put the phone on it, the LED always blinks until phone out. The ACR122U contains a PN532 NFC controller chip. The PN532 supports host card emulation through its TgInitAsTarget command (see the PN532 user manual ). In order to pass commands to the PN532, you would connect to the ACR122U just as if it was a normal smartcard reader (e.g. using PC/SC). You can then

As more and more devices have KitKat, I'm trying to compile a list of devices support HCE. Does anyone have the list? Feel free to add comments to contribute to this list. Below is what I have so far: Notes: Not all KitKat devices support HCE. To detect HCE support, use this code snippet: boolean isHceSupported = getPackageManager().hasSystemFeature("android.hardware.nfc.hce"); Some people reported that KitKat HCE phones has "Tap & Pay" in NFC Setting. I don't know if using "Tap & Pay" as HCE detection method is valid because "Tap & Pay" can mean Tap & Pay using internal SE. It doesn't have to

I'm new in NFC thing, so I tested several phones with calling getTagId() method in HCE mode, and this is the result: device | UID LG G2 | random LG G3 | static S4 | random HTC One Mini | static Xiaomi mi3 | static My questions: Why do some phones have static UID and some do not? Is this chipset related? Is it possible to get a fixed UID? I need it to authenticate the device. On other side, I'm using Kitkat CyanogenMod 11 on Xperia M, but I did not manage to use it for HCE, why? Any documents that can explain/support the answer? Why do some phones have static UID and some do not? Is this

I'm currently in the process of developing a project for my University course wherein I will be hopefully editing the functionality of the HCE Feature of Android to allow me to set my own UID when emulating a card. Now, i've downloaded the AOSP source, and built a custom image with no edited code and installed that to my Nexus 7 (This includes downloading and including the Vendor specific hardware drivers), and i'm stuck on the next part. I physically cannot find the device code that governs the NFC features of Android, and i'm unsure how to go about a) Looking for it, and b) How I should be

Android 4.4 introduced Host-based Card Emulation (HCE). As you know, all NFC cards come with a fixed card ID ( NfcAdapter.EXTRA_ID ). My office door access usually detects the NFC card ID for the authorization. After flashing my phone to KitKat, I tried to scan my phone with the access reader. But whenever the screen turns off and on again, I get a different card ID. I did try keeping the phone screen on, and registering the emulated card ID to the door access system. It managed to grant the access to open the door. But this won't work after the screen turns off and on again. Ever since KitKat