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RFID output has unknown value — Parallax Forums

RFID output has unknown value

wanshazictwanshazict Posts: 3
edited 2012-11-26 12:12 in General Discussion
hello all...iam trying to working with rfid...i have use the rfid software that i found in this forum...what i do is just change the baudrate to 9600 accroding to my frid manual...
my rfid manual setting is

i) Baud rate (Bits per second) = 9600
ii) Data bits = 8
iii) Parity = None
iv) Stop bits = 1
v) Flow control = None

but when scan i got something unknown values at the end of the data...i just want to read 10 character from the card(it should read only 10 character/interger)...see this image...please help mee
11.png
txt
txt
Rfid Reader Coding.txt
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11.png
390 x 386 - 43K

Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2012-11-26 07:22
    You cannot change the Baud setting of the RFID reader. It's fixed at 2400 Baud. The Baud settings in the PC have to match.

    I assume you're talking about this software and the USB RFID Reader.
  • wanshazictwanshazict Posts: 3
    edited 2012-11-26 08:31
    but my manual setting rfid said the baudrate need to set to 9600...that why i change from 2400 to 9600...so what should i do ??
  • JordanCClarkJordanCClark Posts: 198
    edited 2012-11-26 08:39
    Which RFID gadget do you have? The read-only version (#28140) is at 2400. The read-write version (#28440) is at 9600.

    Just wondering if you grabbed the correct manual.:smile:
  • Mike GreenMike Green Posts: 23,101
    edited 2012-11-26 08:40
    This is the documentation for Parallax's RFID Reader which only works at 2400 Baud. Parallax does have another RFID device for read/write tags that only works at 9600 Baud (see here). Other companies make other RFID readers and you'd have to consult with their documentation for any information about their RFID readers. What kind of RFID reader do you have?
  • wanshazictwanshazict Posts: 3
    edited 2012-11-26 09:45
    RFID-IDR-232N_User's_Manual_2.pdf here is the manual
    pdf
    pdf
    RFID-IDR-232N_User's_Manual_2.pdf
    335K
  • Mike GreenMike Green Posts: 23,101
    edited 2012-11-26 10:00
    We can't help you with this RFID reader, sorry. It's neither made nor sold by Parallax and you're not using it with a Parallax microcontroller. It looks like a fairly standard RFID reader though, with a 9600 Baud output and it ought to work with the software posted by Chris Savage once that's modified to work at 9600 Baud, but you're on your own with that. You should contact either the manufacturer or the dealer you bought it from for advice.
  • JordanCClarkJordanCClark Posts: 198
    edited 2012-11-26 12:12
    Not to stick you out completely in the cold, I will add that your reader is putting out 12 bytes with one byte before and one after the ID. It's likely why your output looks funky.

    Good luck!
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