People use it to pair with NFC enabled devices which are basically just Android phones and tablets. These are using NFC Forum NDEF Tag Type 4 specification which is as you say NXP Mifare DESFire emulation in ISO14443 layer 4 APDU mode. If you have some reader (ISO14443 Type A PCD device) which isn't working with NFC "tag" emulation on nRF52 then please provide some details from 13MHz radio interface to be able to debug. If you cannot do that (which i do understand as ISO14443 analyzers/sniffers are bloody expensive unless you can hack some low-cost RF device for that purpose) then you will most probably need to switch to other reader/driver/middleware which allows you to debug on lower layer on that side.
People use it to pair with NFC enabled devices which are basically just Android phones and tablets. These are using NFC Forum NDEF Tag Type 4 specification which is as you say NXP Mifare DESFire emulation in ISO14443 layer 4 APDU mode. If you have some reader (ISO14443 Type A PCD device) which isn't working with NFC "tag" emulation on nRF52 then please provide some details from 13MHz radio interface to be able to debug. If you cannot do that (which i do understand as ISO14443 analyzers/sniffers are bloody expensive unless you can hack some low-cost RF device for that purpose) then you will most probably need to switch to other reader/driver/middleware which allows you to debug on lower layer on that side.
