为什么ST95HF会出现错误代码？

你好
Yezzi.Ye
，您能否详细说明您发送的命令，命令的总大小，您使用的协议，您尝试读取或写入的标签...
根据不同，答案可能会有所不同。
如果您还不知道，请提供相关信息
，ST95HF在读卡器模式下具有528字节深度（VICC和B型）/ 526字节深度（A型）的有限缓冲区（在4.3支持长帧，参见DataSheet中描述）.Kind问候。
 
 注意：原始帖子包含大量线程对话，只能迁移到第9级



以下为原文




Hi
Yezzi.Ye
,Could you give more details on which command you send, what is the total size of your command, which protocol do you use, which tag are you trying to read or write...
Depending on that the answer can be different.


For information if you do not already know it
, the ST95HF has a limited buffer of 528-byte depth (VICC and Type B) / 526-byte depth (Type A) in reader mode (described in section 4.3 Support of long frames, cf. DataSheet).Kind Regards.

Note: the original post contained a large number of threaded conversations and was only able to be migrated to the 9th level

非常感谢你的回复。有我们的命令代码：ï¼我们在阅读器模式中选择15693协议，我们想读15693tag）
1ã0002 02 02 09
2 f02 ff ff
3ã000904 68 01 01 D1
4€02ff ff
5€0004 03 26 01 00
6 0055
7€02ff ff ff
8ã000202 00 00
发送00 02 02 00 00后，ST95HF回复了大量代码，超过50个字节。
我们在流程中找到了一些有趣的现象：
1如果我们对VPS_TX使用3.3V，ST95HF永远不会回复错误代码
 如果
我们使用5V用于VPS_TX，ST95HF回复错误代码



以下为原文




Thank you so much for your reply.There are our command code:（We select 15693 protocol in reader mode,we want to read 15693 tag）
1�00 02 02 02 09
2�02 ff ff
3�00 09 04 68 01 01 D1
4�02 ff ff
5�00 04 03 26 01 00
6�00 55
7�02 ff ff ff
8�00 02 02 00 00
After we send the 00 02 02 00 00,the ST95HF replys a lot of code back,which more than 50 byte.
And there are some interesting phenomenons we had finded in our process:
1�if we use 3.3V for VPS_TX,the ST95HF never replys error code
   if
we use 5V for VPS_TX,the ST95HF  replys error code

嗨，
您写道，您想使用15693协议读取15693标记，但您的第一个命令选择14443A协议。
对于15693，您应该发送以下命令：
- ＆GT; 00 02 02 01 1D（ISO15693,52Kbps，等待SOF，Mod 10％，单副载波，附加CRC）
如果这是您要选择的15693或14443A协议，请告诉我。
在设计时（3.3V或5V），ST95HF板上的电压是多少？你无法改变
仅限VPS_TX电压，当从3.3V变为5V时，您需要调整电路板（反之亦然）。 VPS_TX，VPS_Main，Antenna tunning，....你可以参考ST95HF
http://www.st.com/resource/en/datasheet/st95hf.pdf
 有关命令和DC特性的更多细节（如果你还没有）。最好的问候。



以下为原文




Hi,
You wrote that you want to use the 15693 protocol to read 15693 tag, but your first command selects 14443A protocol.
For 15693 you should send this command:
->  00 02 02 01 1D             (ISO15693, 52Kbps, Wait for SOF, Mod 10%, Single Subcarrier, Append CRC)
Let me know if this is 15693 or 14443A protocol you want to select.


What was the voltage set on the ST95HF board at design (3.3V or 5V)? You cannot change
VPS_TX voltage only, you need to adapt your board when moving from 3.3V to 5V (and vice versa). VPS_TX, VPS_Main, Antenna tunning, ....You can refer to the ST95HF
http://www.st.com/resource/en/datasheet/st95hf.pdf
to have more details on commands and DC characteristics (if you do not already have it).Best Regards.

嗨，
非常感谢您的回复。
我们确实希望选择15693协议来读取15693标签。在我们的设计中，VPS用电源电压为3.3V，VPS_TX用电源电压为5V。但我没有看到有关VPS的任何建议？VPS_TX必须在ST95HF数据表中设计相同的电压。下面是我的设计原理图。向前看你的更多建议。



以下为原文




Hi,
Thank you very much for your reply.
We do want to select 15693 protocol to read 15693 tag.At our design,the VPS is used 3.3V for supply voltage,and the VPS_TX is used 5V for supply voltage.But i do not see any suggestions about the VPS ?VPS_TX have to be designed with the same voltage in the ST95HF DataSheet. There is my design schematic diagram below.Looking forward to your more suggestion.

嗨，
1）如果要读/写ISO15693标签，首先需要通过向ST95HF发送以下命令来选择ISO15693协议：
- ＆GT; 00 02 02 01 1D
2）我打算通过'
你无法改变
仅VPS_TX电压'，不是你必须有VPS_TX = VPS_Main。但是如果你用VPS_Main = X.X Volts和VPS_TX = Y.Y Volts来设计你的电路板，你不能在不调整电路板（天线调谐，电容......）的情况下改变这些值。你可以参考
http://www.st.com/content/ccc/resource/technical/document/application_note/33/ae/18/cb/dd/0f/46/96/DM00027198.pdf/files/DM00027198.pdf/jcr：内容/翻译/ en.DM00027198.pdf
 帮助您，有一个http://www.st.com/content/st_com/en/products/embedded-software/st25-nfc-rfid-software/stsw-95hf003.html
对于天线也是如此（这些文件是为CR95HF编写的，但也适用于ST95HF）。
我可以建议一个关于这个主题的讨论主题也会对你有所帮助（
https://community.st.com/0D50X00009Xkf5qSAB
）。
希望能帮助到你。
最好的祝福，
 
 注意：原始帖子包含大量线程对话，只能迁移到第9级



以下为原文




Hi,
1) If you want to read/write ISO15693 Tags, you first need to select ISO15693 protocol by sending the following command to the ST95HF:
->  00 02 02 01 1D
2) What I intended to say by '

You cannot change
VPS_TX voltage only', is not that you must have VPS_TX = VPS_Main. But if you design your board with VPS_Main = X.X Volts and VPS_TX = Y.Y Volts, you cannot change those values without adapting the board (antenna tuning, capacitors, ...).You can refer to the
http://www.st.com/content/ccc/resource/technical/document/application_note/33/ae/18/cb/dd/0f/46/96/DM00027198.pdf/files/DM00027198.pdf/jcr:content/translations/en.DM00027198.pdf
to help you and there is a http://www.st.com/content/st_com/en/products/embedded-software/st25-nfc-rfid-software/stsw-95hf003.html
too for the antenna (These documents are wrote for the CR95HF but are also applicable to the ST95HF).

May I suggest a discussion thread on this subject that will help you as well (
https://community.st.com/0D50X00009Xkf5qSAB
).

Hope it helps.


Best Regards,

Note: the original post contained a large number of threaded conversations and was only able to be migrated to the 9th level

嗨，
 
再次感谢您的信息。它对我帮助很大。我按照天线设计指南并使用计算工具设计天线。有什么问题吗
如果VPS_Main = 3.3Volts且VPS_TX = 5伏，它会对ST95HF造成伤害。
 一世
将以下命令发送到ST95HF以选择ISO15693协议：
- ＆GT; 00 02 02 01 09（附加26Kbps WFS MOD100％单子载波CRC），可以吗？
 
再次感谢你。谢谢你的回复。
最好的祝福，



以下为原文




Hi,

Thank you again for your information.It does help me a lot.I had follow the antenna design guide and used the calculation tool to design the antenna.Is there any problem
with VPS_Main = 3.3Volts and VPS_TX = 5 Volts,would it do harm to the ST95HF.


I
sent the following command to the ST95HF to select ISO15693 protocol:

->  00 02 02 01 09(26Kbps  WFS  MOD100%  Single subcarrier  CRC appended), is it OK?




Thank you again.Looking forward to your reply.

Best Regards,

嗨，
使用ST95HF没有问题
VPS_Main = 3.3Volts，VPS_TX = 5伏。 Ø
需要注意的是RX1和RX2上的信号（RX1-GND和RX2-GND之间）不超过8伏。使用1Kohm电阻，这足以衰减信号。您选择ISO15693协议的命令是可以的，ST95HF应该回答：
- ＆GT; 02 00 00
之后，ST95Hf准备发送RF命令。
最好的祝福。



以下为原文




Hi,
There is no problem to use ST95HF
with VPS_Main = 3.3Volts and VPS_TX = 5 Volts. O
ne thing to be aware is that the signal on RX1 and RX2 (between RX1-GND and RX2-GND) does not exceed 8 Volts. With your 1Kohm resistor, this is very sufficient to attenuate the signal.Your command to select ISO15693 protocol is OK and the ST95HF should answer:
-> 02 00 00
And after that the ST95Hf is ready to send RF commands.
Best regards.

嗨，
不幸的是，我们的产品存在另一个问题，我们产品的外壳由金属材料制成，部分覆盖了天线，因此，检测标签（ISO14443标签，A＆amp; B）的距离非常短，有没有增加检测距离的解决方案？
如何改变天线的形状或修改外壳？



以下为原文




Hi,
Unfortunately,there is another problem with our product,the shell of our product is made up of metal material and the antenna was covered partly,as a result,the distance of detecting tag(ISO14443 tag,A&B) is very short,is there any solution to increase the detecting distance?
How about change the shape of the antenna or modify the shell?

嗨，
对不起，我对硬件方面的了解并不足以给你最好的答案。我能给出的唯一建议是，天线应远离任何金属部分，因为这会破坏磁场。结果限制了通信距离。一种可能性是在天线和金属之间添加铁氧体材料，但这不如没有金属的天线那样好，而且可能更昂贵。
我让更专家帮助你。
最好的祝福。



以下为原文




Hi,
I'm sorry my knowledge on hardware side is not good enough to give you the best answer. The only advice that I can give, is that the antenna should be distant from any metal part as this will disrupt the magnetic field. And in consequence limit the distance for communication. One possibility is to add ferrite materials between antenna and metal but this will not be as well as an antenna without metal around and it could be more expensive.


I let someone more expert help you on this.


Best Regards.

你好，
 
当然，通过在天线下添加磁性材料作为金属平面，您将修改/减少磁场并可能缩短通信通道。
您是否发现在金属区域和天线之间引入铁氧体材料？
否则，您必须切割金属区域，以免破坏磁场。
问候



以下为原文




Hello,

For sure by adding magnetic material as metal plane  under the antenna  you will modify/ reduce the field and potentially will short the communication channel.
Did you find ferrite material to introduce between the metal area and the antenna?
Otherwise you will have to cut the metal area in order to not disrupt the magnetic field.
Regards

嗨，
我尝试在EVAL-ST95HF上将VPS_TX从3.3增加到5V，就像在图片上一样
我从USB塞了5个。此外，我使用您推荐的应用程序重新计算电容器，但我仍然没有任何更好的结果。
这个想法是随着电压的增加而增加读取距离。
因为我正在使用评估板，你可以帮助我，也许我做错了什么。
我得到的值，Ca保持在82pF，C22和C25是22pF，并且具有相同的读取距离，我有3.3V。
是否有人成功增加了阅读距离和发射机功率？
谢谢！



以下为原文




Hi,
I tried to increase VPS_TX from 3.3 to 5V on EVAL-ST95HF like on a picture
I tucked 5 from USB. Also I recalculated capacitors with apps you recommended, and still I do not have any better results.
The idea is to increase reading distance with increasing voltage.
So because I am using eval board can you help me maybe I did something wrong.
Values I got, Ca stays on 82pF, and C22 and C25 are 22pF, and with that values I have same reading distance i have with 3.3V.
Did any one succeeded to increase reading distance and transmitter power?  
Thanks!

你好Stefan，
 
请看下面的主题：
https://community.st.com/0D50X00009Xkf5qSAB
 
实验已经完成并且结论似乎ST提供的设计已经被修整为具有3V电源的性能。
通过施加5V来增加功率在传输路径中有益，但也对接收部分有影响，因为它们不会对芯片灵敏度进行修改，因此无法正确看到标签应答。
BR
 
PB
 
 注意：原始帖子包含大量线程对话，只能迁移到第9级



以下为原文




Hello Stefan,

Please have a look on the thread below:
https://community.st.com/0D50X00009Xkf5qSAB
  
Experiment have already been done and conclusion seems that the design provided by ST is already trimmed to have performances at 3V power supply.
Increasing power by putting 5V has benefit in the transmit path but have also impact on receive part because their is no modification on chip sensitivity and thus Tag answer can be not seen correctly.
BR

PB

Note: the original post contained a large number of threaded conversations and was only able to be migrated to the 9th level