2022-06-30 10:30 PM
2022-06-30 11:57 PM
Welcome, @SSaxe.2, to the community!
The ST72321BAR9 has been discontinued for a long time and is no longer available, but there is still a little information (datasheet, application notes etc) on the website.
If the problem is resolved, please mark this topic as answered by selecting Select as best. This will help other users find that answer faster.
Regards
/Peter
2022-07-01 12:19 AM
2022-07-01 12:54 AM
The ST72321BAR9 does not support USB CCID.
If you want to implement CCID via USB, there are a very large number of STM32 with USB that can cover this. The list is too long to include here. Maybe it would be helpful if you contact your nearest distributor for help?
Regards
/Peter