Other Parts Discussed in Thread: MSP-EXP430F5529LP, DLP-7970ABP, , MSP430G2553
Hello,
We are using the DLP-7970ABP plug in module with MSP-EXP430F5529LP Development Kit which houses the TRF7970A NFC Transceiver. So far we have tested Type 2,4 and 5 tags. We were able to read from and to write to both Type 2 and Type 5 tags, but not from a Type 4. The Type 4 cards we are using are the MIFARE DESFire EV2 4K cards. Write doesn't work at all. And Read works intermittently.
I read that MIFARE technology uses AES encryption and I was wondering that perhaps this could be the reason. However, TRF7970A datasheet claims that all tags Type 1-5 can be read from and written to. Please advise if any modifications are required in order to read from a Type 4 tag. If so, what modifications are required for the module I am using?
The MIFARE DESFire EV1 AES Authentication With TRF7970A assumes MSP430G2553 LaunchPad and DLP-7970ABP BoosterPack and not the MSP-EXP430F5529LP we are using.
Thank you