是否可以在PSoC 1中实现单主多从系统？

选定的奴隶是由一个-选择线，所以你需要一个输出引脚为每个奴隶你想谈谈。所以在你选择的设备上的自由插脚的数量限制了你可以与之交谈的奴隶数量。
你需要
莫西
味噌
时钟
奴隶数量
看看SPIM数据表，它解释了一切都很清楚。
鲍勃



     以下为原文
  The selected slave is addressed by a -Select line, so you need one output pin for each slave you want to talk to. So the number of free pins on your selected device limits the number of slaves you may talk to.
    You need
    MOSI
    MISO
    CLK
    -SSelect * Number of slaves
    Have a look into the SPIM datasheet, it explains everything quite clear.
     
    Bob

如果你使用I2C来实现这个方法，允许奴隶数量。
将由/模式和巴斯的寻址
C加载。7位寻址，支持128个奴隶如果巴斯加载
在规格之内。
当然I2C比SPI慢得多。
问候，Dana。



     以下为原文
  If you used I2C to effect the approach the number of slaves allowed
    would be governed by either / both the addressing mode and buss
    C loading. 7 bit addressing would support 128 slaves if the buss loading
    is within spec.
     
    Of course I2C much slower than SPI.
     
    Regards, Dana.

如果你选择呆在SPI上，受PSoC可用的PIN限制的奴隶
对于芯片选择，除非您使用链式模式。高总线速度
意味着更短的距离，除非你实现某种类型的LVDS。
信号传递。当然你有圆柱销所有奴隶像时钟，
所以BUS C是你试图操作的速度的一个因素。
问候，Dana。



     以下为原文
  If you elect to stay with SPI, slaves limited by pins available on PSOC
    for chip select, unless you use chained mode. And higher buss speeds
    imply shorter distances, unless you implement some type of LVDS
    signaling. And of course you have paralled pins like clk on all slaves,
    so buss C a factor for the speed you are trying to operate at.
     
    Regards, Dana.

忘记这些
HTTP://E.WiKiTo.Org/Wiki/SerialPurialPurralIa接口总线
HTTP://www. Ti.COM/LIT/AN/SLYT41/SLYT41.1.PDF
问候，Dana。



     以下为原文
  Forgot these -
     
    http://en.wikipedia.org/wiki/Serial_Peripheral_Interface_Bus
     
    http://www.ti.com/lit/an/slyt441/slyt441.pdf
     
    Regards, Dana.

是的，可以在PSOC1中实现单主多从系统。通常使用的两种配置是菊花链式多从系统和并行多从系统。
在菊花链式多从系统中，一个从设备的输出连接到另一个从设备的输入，并且在主站上只有一个从选择线。在这种情况下，要将数据发送到第N个从属，主必须发起N个事务。在这种情况下，奴隶的数量受到设计中可接受的延迟量的限制。
在并行多奴隶制度、奴隶并联主必须提供不同的选择线，每个奴隶的奴隶。在这种情况下，奴隶的数量是由可自由引脚数量有限。
在SPI工作在psoc1详细的解释中可以找到an51234 - http://www.cypress.com/？RID＝34609
以及SPIM用户模块数据表-HTTP://www. CyPress？COM/？RID＝3054



     以下为原文
   Yes, it is possible to implement single master - multi slave system in PSoC1. Two normally used configurations for this are the Daisy chained multi slave system and parallel multislave system..
    In Daisy chained multi slave system the output of one slave connects to the input of another and there is only one slave select line on the master end. To send the data to the nth slave in this case , the master must initiate n transactions. The number of slaves in this case is limited by the amount of delay acceptable in the design.
    In parallel multi slave system , the slaves are connected in parallel and the master must provide separete slave select line for each slave. The number of slaves in this case is limited by the number of free pins available.
    A detailed explanation on SPI working in PSoC1 can be found in AN51234.- http://www.cypress.com/?rID=34609
    and the SPIM user module datasheet - http://www.cypress.com/?rID=3054