MOD-RFID125 wrong bit ordering

[Yenya]

Hello, is there a firmware source code for MOD-RFID125 available somewhere for study and modification?

We use a system with EM4102-based cards, and I wanted to use MOD-RFID125 for reading the card IDs. The problem is that the ID code readed by MOD-RFID125 is different to what other readers in our systems read. For example, it reads
0123456789 for a test card which has the ID
084C2A6E19 stored in our database. (line-wrapped for character-to-character alignment).

Comparing several cards with the output of MOD-RFID125 I have discovered that it has the bit ordering in each hex digit reversed:

0 stays 0
1 becomes 8 and vice versa (0001 <--> 1000)
2 <--> 4
3 <--> C
5 <--> A
6 stays 6
7 <--> E
9 stays 9
B <--> D
F stays F

I can probably fix it myself, provided that I have the firmware source code. Is it possible to obtain it? Thanks!

[LubOlimex]

Hey yenya,

Check your personal messages,

Regards,
Lub/OLIMEX

[mac72]

Hey yenya,

Check your personal messages,

Regards,
Lub/OLIMEX

Hello, have a same problem as Yeyna. Could you help me, pls?
Thanks Martin

[josh]

Same problem here,
it is VERY important for my organization to find a way to read RFId hexes in inverted order.
Could you please post the solution publicly?
Thank you in advance

[itec]

Hi. I've the same problem.
What can I do?

BR
EC