Our Online Store have the new products: RFID antenna board. Currently it can work with JC10M24R and JCOP4 card chips.
Compared with normal cards, the antenna board module has a smaller size and fixed holes, which is easy to integrate in the IOT(Internet Of Things) project.

Search found 4 matches

by feature
Mon Jul 04, 2022 6:33 am
Forum: Card Products
Topic: Unable to change historical bytes JCOP4 P71 J3R200 with default privilege
Replies: 1
Views: 11031

Re: Unable to change historical bytes JCOP4 P71 J3R200 with default privilege

Could it be because I'm using GlobalPlatform 2.1.1, and the card only supports GlobalPlatform 2.2.1 or 2.3?

I only have option to add 2.1.1 or 2.0.1 with the "Add Jar Container", is there a way to add 2.2.1 or 2.3?

Or is there something else that's the matter?
by feature
Sun Jul 03, 2022 5:40 am
Forum: Card Products
Topic: Unable to change historical bytes JCOP4 P71 J3R200 with default privilege
Replies: 1
Views: 11031

Unable to change historical bytes JCOP4 P71 J3R200 with default privilege

I've created a simple app which should be able to modify historical bytes. Compiled it with java_card_kit-305u3 and GlobalPlatform 2.1.1 Successfully installed it using GlobalPlafromPro using the command /gp --install miniAppletPkg.cap -default (after deleting the applet that came with the card and ...
by feature
Mon Jan 03, 2022 4:16 am
Forum: Questions & Answers
Topic: How to profile run time on card?
Replies: 0
Views: 20382

How to profile run time on card?

I want to find out how much time each line takes so that I can optimize my application. I created a log class which I can write and read to, but I can't find any way to measure time... I see that JCop 3.1 has a javacardx.framework.time package which seems to have what I need - but my card only suppo...
by feature
Tue Dec 21, 2021 10:53 am
Forum: Questions & Answers
Topic: breakpoint not triggered in debug mode when using vreader
Replies: 6
Views: 12973

breakpoint not triggered in debug mode when using vreader

Hi, I have a simple applet which I want to debug. When I start debug, and put a breakpoint in the install function, it indeed breaks. But if I put the breakpoint in the process function, it doesn't break for any command. I know the code from that function is executing, because I get a reply for my s...
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