ISO 7816 Interface on AM3352

Rene Roesti

Prodigy 90 points

Other Parts Discussed in Thread: AM3352, AM1808

Hello,

is there an application note or recommendation, how to implement a ISO 7816 smart card interface with the AM3352?

best regards

Rene

over 9 years ago

0 Biser Gatchev-XID over 9 years ago

TI__Guru**** 393215 points

Hi,

There is a wiki article, but it's based on the older AM1808 processor: http://processors.wiki.ti.com/index.php/SmartCard_Implementation_on_OMAPL_PRU_-_Software_Users_Guide

Here are a couple of posts that offer some additional information:

https://e2e.ti.com/support/arm/sitara_arm/f/791/t/212221

https://e2e.ti.com/support/dsp/omap_applications_processors/f/42/p/333975/1164952

Best advice is to contact your nearest TI representative about this.

0 Rene Roesti over 9 years ago in reply to Biser Gatchev-XID

Prodigy 90 points

Hi Biser,

thank you for the answer.
The AM1808 example uses the PRU. Im not sure if this is possible with the AM3352?

In the datasheet of the AM3352, I cant't find any information about internal structure of the UART ports A17 (UART2 RXD) / B17 (UART2 TXD).
How do I have to connect them, to get a one wire UART?

best regards
René

0 Biser Gatchev-XID over 9 years ago in reply to Rene Roesti

TI__Guru**** 393215 points

This is a regular UART, you can't connect is as a one-wire. As for the AM1X example, I know from the developers that this is an example that's been tested with only one type of Smart card and they strongly warn that there may be compatibility issues.

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ISO 7816 Interface on AM3352