nRF52 support ISO7816 protocol

[Jagadish.H]

Hi,

let me know if nRF52 support ISO7816 protocol for Smart Card Interface.

Regards, jagadish.H

[Gopal]

Hi,

Do you have any reference design with ISO7816 protocol/interface?

if so, can you kindly share the design?

[Tony Garland]

Hi Jiacheng,

A couple of additional questions if you will permit me?

Are you using the UART for send/receive of the individual ISO-7816 bytes? Or are you bit-banging a GPIO pin (a software UART)?

If you are using the UART, then I'm not certain I understand why 7816 communications would be disturbed by ongoing radio operations by the BLE stack? If the 7816 interface is asynchronous and the UART can buffer data, wouldn't that provide immunity from interference by the radio (similarly to when one uses the UART for debug printing while BLE is active)?

Thanks for your patience - Tony