PN7462 door acces firmware working supply voltage

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PN7462 door acces firmware working supply voltage

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sanath_rai
Contributor III

Hello ,

I am working on PN7462 controller.

I am building my application on door access example firmware.

my development is on PNEV7462C evaluation board which is working at 5V and the door access firmware is working fine.

but now we have changed the system voltage to 3.3V in PNEV7462C and the door access example is not working and all the remaining example firmware's are working .

We have made the Changes below as per the document (UM10883 page number 30 and 31) are listed below.

1. Jumper JP 42 close

2. R179-R181 DNL

3.Soldering p3 pin 2(3.3v) to R179-R181 pads

4.Jumper JP16 pin no 2 and 3 given to p3 pin 2(3.3v)

5.R213 DNL,R188 -0 ohms

6.Jumper JP1 open

7.R191 0 ohms R189 DNL

Any particular voltage setup is required for door access example?

Regards,

Sanath Rai

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IvanRuiz
NXP TechSupport
NXP TechSupport

Hello,

Could you please provide us information about the contact card you are trying to read?

BR,

Ivan.

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