用SPI协议将RFID RC522与PSoC 4套件进行接口但RC522没有SS引脚

SS是一种使用几个引脚来指定SPI发送数据的多个芯片的芯片的方法。如果你的RFID芯片总是基于时钟线进行通信/读/写，那么SS线就不需要了。
您可以手动控制GPIO引脚上的RESET PIN，然后只需编程代码就可以用它做您想要的。
这听起来像阿杜诺示范课程：阿杜诺游乐场-MFRC522
将有你正在寻找的信息。试着阅读那里的信息，看看你是否能成功。



     以下为原文
  SS is a method of using a few pins to designate which chip of multiple chips that the SPI is sending data to. If your RFID chip is always communicating/reading/writing based on the clock line, then the SS line is not needed.
You can manually control the Reset pin on a GPIO pin, and then just program the code to do what you want with it.
 
It sounds like this arduino example course: Arduino Playground - MFRC522
will have the information you are looking for. Try reading the information there, and see if you can't get it going

如果您使用PSOC4 SCB SPI作为主机，您可以选择SS的数量为“0”。



     以下为原文
  If you are using PSoC4 SCB SPI as a master, you could select '0' for number of SS.

我已经尝试过，让奴隶数量0。但它对我们不起作用。



     以下为原文
  I have tried it by making number of slaves 0. but It did not work for us.

我读过这个。并尝试实现这一点。但是读复位引脚的状态是什么？



     以下为原文
  I have read this. And try to implement this. But what is state of reset pin when it is reading?