MIFARE DESFire EV1 vs EV2

[wilmer_suarez]

Hello,

I'm currently working on a project where I need to detect EV1 & EV2 cards. I'm using an STM32F207 (Cortex-m3) MCU and a TI TRF7970A as the RFID reader. I just wanted to know what the differences between the EV1 & EV2 cards are in terms of the detection requirements. The system I've set up is able to detect the EV2 cards seamlessly; but not the EV1 cards. Any Idea why this is happening?

Thank you!

[stephanie_m]

Hello,

Please consider that the MIFARE DESFire EV2 is backwards with EV1 so it can be used as a MIFARE DESFire EV1 in its default delivery configuration, still here are some commands and processes that might vary between both of them .

Still, as you might know,  there are some of the documents and libraries which are under NDA (Non-Disclosure Agreement) and placed in docstore, could you please follow this guides?

Docstore tutorial part 1: User Registration|NXP

https://www.nxp.com/video/docstore-tutorial-part-1-user-registration:DOCSTORE-USER-REGISTRATION

Docstore tutorial part 2: portal usage|NXP

https://www.nxp.com/video/docstore-tutorial-part-2-portal-usage:DOCSTORE-TUTORIAL-PORTAL-USAGE

Also, you will need to contact one of our distributors available in the  Distributor Network|NXP to help you through the NDA process.

https://www.nxp.com/support/sample-buy/distributor-network:DISTRIBUTORS

Regards,

Estephania