| ??? 09/20/06 11:13 Read: times |
#124661 - just a remark Responding to: ???'s previous message |
just a remark, if the AT89C4051 performs the complete communication with the card via RF plus the other tasks (card ID evaluation, keyboard scan), it means a complete rework of the whole gadget (except the RF part), so you might be perhaps better off starting from scratch, maybe using some of the RFID kits available...
But it might be also a two-piece stuff, a "kit", performing the RFID protocol (gap-protocol uplink, manchester decoding for downlink; eventually the cryptofunctions etc.), then the AT89C4051 might receive from it the ID number, and then the task might be easy. You might want to have a look into it, find, what is connected to AT89C4051, or find out otherwise how it really works (ask the manufacturer, perhaps, but I doubt that is what you want). JW |
| Topic | Author | Date |
| Q2000-C | 01/01/70 00:00 | |
| Reply | 01/01/70 00:00 | |
| Q2000-C | 01/01/70 00:00 | |
| RFID Door access control | 01/01/70 00:00 | |
| The way it works.. | 01/01/70 00:00 | |
| re: | 01/01/70 00:00 | |
| Time control | 01/01/70 00:00 | |
| re: | 01/01/70 00:00 | |
just a remark | 01/01/70 00:00 | |
| I don't believe it's encrypted | 01/01/70 00:00 | |
| I wish i did | 01/01/70 00:00 | |
| even if the code is fetched from internal? | 01/01/70 00:00 |