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 11 matches

by later123654
Fri Oct 26, 2018 2:40 am
Forum: Questions & Answers
Topic: who can help me to resolve the question and thanks
Replies: 6
Views: 10231

Re: who can help me to resolve the question and thanks

I think perhapse there are some datas needed to write into NVM and the less command data need less time.
Perhapse, you just change the time distribution framework and it just stagger the import time order of WTX sending and receiving.
by later123654
Thu Oct 25, 2018 11:32 pm
Forum: Questions & Answers
Topic: how to solve this question?
Replies: 7
Views: 10581

Re: how to solve this question?

I guess the reason : the reader handle the command as case 1 and refuse the response data from the card.
by later123654
Thu Oct 25, 2018 10:55 pm
Forum: Questions & Answers
Topic: how to solve this question?
Replies: 7
Views: 10581

Re: how to solve this question?

I test the code and the command with JCOP card and the question is still exist.
But the command is ok:
the command( 8005000000) can return 256 bytest data.

so you can modify the command.
by later123654
Thu Oct 25, 2018 10:42 pm
Forum: Questions & Answers
Topic: who can help me to resolve the question and thanks
Replies: 6
Views: 10231

Re: who can help me to resolve the question and thanks

I think you set the FWT too little and it make the frame wait time shorter.
You can set the FWT bigger and test again。
by later123654
Thu Oct 25, 2018 10:40 pm
Forum: Questions & Answers
Topic: who can help me to resolve the question and thanks
Replies: 6
Views: 10231

Re: who can help me to resolve the question and thanks

I want to know the value of ATS. can you tell me?
by later123654
Thu Oct 25, 2018 10:38 pm
Forum: Questions & Answers
Topic: how to solve this question?
Replies: 7
Views: 10581

Re: how to solve this question?

hello, you can provide your code here which can help me to parse this question.
by later123654
Fri Jun 15, 2018 5:41 am
Forum: Questions & Answers
Topic: Get JavaCard's Stack Size
Replies: 2
Views: 5772

Re: Get JavaCard's Stack Size

method is described as follow: 1. build many functions to get the different formula for java stack size. 2. these fuctions are recursion functions and can use the max java stack size. 3. these functions have the different parameters, which can format the different formula. 4. we can get the approxim...
by later123654
Fri Jun 15, 2018 5:33 am
Forum: Questions & Answers
Topic: T=0 protocol, How to use the correct ins value in the apdu command?
Replies: 1
Views: 4894

Re: T=0 protocol, How to use the correct ins value in the apdu command?

you can refer 5.1.2 in 7816-4:
INS indicates the command to process. Due to specifications in ISO/IEC 7816-3, the values '6X' and '9X' are invalid.
by later123654
Fri Jun 15, 2018 5:05 am
Forum: Questions & Answers
Topic: Applet's own space
Replies: 3
Views: 6623

Re: Applet's own space

you can use a new API(since jck3.0.4) to get the size: public static void getAvailableMemory(short[] buffer, short offset, byte memoryType) throws SystemException Obtains the amount of memory of the specified type that is available to the applet. Note that implementation-dependent memory overhead st...
by later123654
Fri Jun 15, 2018 4:46 am
Forum: Questions & Answers
Topic: how to judge that the class byte of APDU command is valid?
Replies: 4
Views: 7845

how to judge that the class byte of APDU command is valid?

how to judge that the class byte of APDU command is valid? I want to know the answer, please tell me and thanks!
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