1) How autostart midlet on nokia to p2p after touch mobile to ACR122 ? (i'am read all forum nokia - resultless)
I didn't see anything about that in standards but I have maybe missed this part. IMHO, Its more related to Nokia phones specifications than NFC.
2) How send NDEF tag (example mifare) from ACR122 ? (as workaround for start midlet after touch mobile)
May be send APDU byte array?
If I understand, you want to emulate a mifare tag with ACR122 to be able to read it from Nokia phone. To do that, the example (provided with libnfc) nfc-emulate may be a good starting point.
To build your NDEF message, I haven't any ready-to-run tool but I can point some links that could help:
- http://code.google.com/p/nfc-tools/sour … f-decode.c A NDEF message decoder (it doesn't support all NDEF spec, but contribution are welcomed )
- http://mulliner.org/nfc/ A very interessting page on NFC related stuff... with some scripts to handle NDEF.
Hope it helps.