如何提高CLRC663非接读卡器读写的速度

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如何提高CLRC663非接读卡器读写的速度

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elvyis
Contributor II

你好,我现在在想提高RC663非接读卡器读通行证写的速度,目前调试的是14443的B卡,速度已经调成848kbits,但是当我实际测量执行一条APDU指令读242字节却发现需要7ms时间,计算得到实际速度只有276kbits,远远小于理论值848kbits,请问这正常吗?另外请问还有没有办法提高663的读写速度,例如还要关注某个寄存器等等之类的,请各位大佬帮我指明方向,先谢谢了!

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Kan_Li
NXP TechSupport
NXP TechSupport

848K是设备RF端和非接触式卡之间的速率,你测得的数据恐怕是host controller那端的速率吧,这个数据还受到host interface的速率以及host controller的性能的影响吧。你可以先试试提高接口速率,看看有没有改善。

Have a great day,
Kan

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Kan_Li
NXP TechSupport
NXP TechSupport

848K是设备RF端和非接触式卡之间的速率,你测得的数据恐怕是host controller那端的速率吧,这个数据还受到host interface的速率以及host controller的性能的影响吧。你可以先试试提高接口速率,看看有没有改善。

Have a great day,
Kan

-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!
- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
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elvyis
Contributor II

Hi Kan,谢谢你的回答,目前我已经确定将接口速率提高到848K了。看来的确是host端的影响!

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