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PN548 proprietary 2F 31 01 00 Rejected

Question asked by Elias Limneos on May 17, 2018
Latest reply on May 17, 2018 by Elias Limneos

After manually sending several commands to PN548 , now on each startup when 2F 31 01 00 is sent by the controlling software, it returns 

4F 31 01 01 - REJECTED and the software crashes there.

 

The software's startup sequence is:

TX: FF FF 20 00 01 00 (I'll be omitting FF FF from now on)

   RX: 40 00 03 00 10 00

TX: 20 01 00

   RX: 40 01 15    00 03 0e 03 00 04 00 01 02 03 02 c8 00 ff 02 00 04 08 02 01 26

TX: 2f 02 00   

   RX: 4f 02 05     00 00 00 93 e5

TX: 2f 00 01 00

   RX: 4f 00 01    00

TX: 20 03 03 01 a0 0f

   RX: 40 03 45   00 01 a0 0f 40 1d 01 26 01 a5 a5 c3 c3 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 

TX: 2f 02 00

   RX: 4f 02 05   00 00 00 93 e5

TX: 2f 31 01 00

   RX: 4f 31 01   01

 

whereas the response to that before , used to be 

   RX: 4f 31 03    00 00 10

 

 

After searching the logs, I found that the last command I sent that got a response was

2f 02 08 01 A0 0D 04 32 03 40 3D

with a reponse: 

4f 02 05 09 00 00 93 e5

where I mistakenly used 2f instead of 20 trying to set an antenna register.

 

Does anyone know what 2f 31 does and in which manual its refereed, so I can reset some values and resolve the issue?

 

(I dont' have access to the controlling/driver software source code, so I probably need to set a value back to its defaults in order for this to get back to working)

 

Thank you in advance!

 

 

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