And besides that, Google took out microSD from the major NFC phones,
so, basically, we won't be able to do nothing when it comes card
emulation - as for an obvius reason, the SE keys are not available.
As far as I can gather from the giants in this matter (like our friend
Michael Roland), SWP is the only way out.
On 31 jan, 05:52, Fernando Miguélez fernando.migue...@gmail.com
wrote:
No, you cannot read/write APDUs from your application while working with an
external reader. When card emulation is enabled APDUs are routed directly
to SE from NFC Controller. APDU communication with SE has other objective,
main application processor can not emulate a PICC, that is the task of SE.
When communicating main processor with SE you can theoretically load/remove
cardlets, interact with them and so on. For the time being Mifare embedded
inside SmartMX chip can not be accessed from an application. At least
AFAIK.
On Tue, Jan 31, 2012 at 2:22 AM, malls masubha...@gmail.com wrote:
Fernando,
Thanks I could create custom image with nfc enabled by using your
help.
Just to clarify myself, if we are connected to external reader, I
should be able to directly read/write APDUs from my app right.
should I be using NFCService.transceive(..) method to read/write from
the external reader.
regards
malls
On Jan 4, 6:17 am, Fernando Miguélez fernando.migue...@gmail.com
wrote:
Well, options are enabled in cascade. The problem comes because the first
option is not enabled. Besides, if you look at the Wireless Settings
screen, there is only the NFC Settings option, but not the one that
lets
you enalbe/disable NFC directly from that screen. That is beacuse the Nfc
service in not available. Connection to a computer in debug mode will
draw
some light.
Instead of compiling the whole image again I suggest you to compile just
the Nfc.apk system application and replace the original one. You must
remount /system partition in read/write mode and overwrite the apk inside
/system/app. Then you must kill the nfc service by means of DDMS view of
the ADT (you must connnect the phone in debug mode and since you have
compiled in userdebug mode you will see all the running proccesses). The
service will restart automatically.
When it comes to read/write the card by means of an external reader, any
Mifare Classic 4K compatible RFID reader will do. If you try to access
directly to the SE from an Android application I am afraid to disappoint
you but that is not possible, at least I wasn't successful at it and
nobody
I know either. The reasons are well described in other posts and on
stackoverflow.
Regards
On Wed, Jan 4, 2012 at 2:56 PM, s.rawat imsaurabhra...@gmail.com
wrote:
Thanks !
I will also try from my side recompiling it.So you mean I should get
the
Check boxes enabled for
*Only Card EmulationMode*
and
*Use External SE*
My main aim is to write to the NFC card in card emulation mode so that
it
can be read by any Card Reader.is it possible after your patches are
applied using teh android SDKs or do we have to write some native
application.
Rgds,
Softy
..pain is temporary.quitting lasts forever..
2012/1/4 Fernando Miguélez fernando.migue...@gmail.com
Great work.
Obviously there is something wrong with the compilation. Have you
tried
to connect in debug mode the phone to a computer with Android
Development
Tools and see what the traces look like. They may offer a clue. My
suspicion is that NfcService is crashing. I will review my notes
tomorrow
if I find something different to the steps you followed to build the
image.
On Wed, Jan 4, 2012 at 9:17 AM, softy imsaurabhra...@gmail.com
wrote:
Hi All,
Thanks Fernando Miguélez Palomo for posting the patches.I have
applied
it to 2.3.4-r1 Android gingerbread and compiled /flashed it on
Samsung
Nexus S and was able to see the NFC Settings changed(though i cant
select
them, they are disabled)
I have blogged the whole steps here
http://techshek4u.blogspot.com/2012/01/applying-card-emulation-patch-Plz
let me know if I miss something.
@ Fernando Miguélez Palomo
What next after that.How can i test this.Any source code or tool
/card
reader description will be enlightening.
Rgds,
softy
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