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[问答]

哪里可以找到CR95HF启动序列

我使用带有UART通信的CR95HF。我用t0 = 200 us创建启动序列。我有30块板与CR95HF。其中一个不与我的微控制器通信。我改变t0 = 250 ms,在此操作之后,通信开始。为什么?
我能找到具有典型值和最大值的启动序列吗?
我有第二个问题。
我想使用校准过程来增加接收的长度,但是这个命令不会发送响应。
使用其他命令,我收到回复。

为什么?

校准增加了多少长度? (毫米或厘米)

以上来自于谷歌翻译


以下为原文




I use a CR95HF with UART communication. I make the startup sequence with t0= 200 us. I have 30 boards with CR95HF. One of them don't communicate with my microcontrolleur. I change t0 = 250 ms and after this operation, the communication begin. Why ?
Can I find a startup sequence with the typical values and maximal values ?
I have a second problem.
I want use the calibration process to increase the lenght of reception but this command don't send response.

With the other commands, I receive a response.

Why ?

How much the calibration increase the lenght ? (millimeters or centimeters)

回帖(1)

刘峰

2019-7-24 09:03:18
你好Mickael,
要回答您的校准需求,CR95HF上的功能可以在标签应答前调整阅读器的灵敏度,而不是相反。因此,您不会通过执行校准来增加传输长度,但您将改进标签检测。
对于您的启动问题,您可以通过阅读好的和失败的IC的IDN来提供CR95HF的版本。
然后解释你如何测量t0时间?据我所知,唤醒的最小值为100us,最大值没有意义。
问候

以上来自于谷歌翻译


以下为原文




Hello Mickael,
To answer your calibration needs the functionality is available on the CR95HF to tune the sensitivity of the reader in front of the Tag answer and not the reverse. Thus you will not increase transmission lenght by executing calibration, but you will improve tag detection.
For your startup issue can you please provide the version of the CR95HF by reading the IDN of the good and failing IC.
Then  explain how you measure the t0 timing? For my knowledge there is a min value of 100us to wake up,  max value doesn't make sense.
Regards
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