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???
06/22/05 17:11
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#95617 - no SPI for 20 feet
Responding to: ???'s previous message
Any suggestions to communicate between microcontrollers separated by 20feet using SPI protocol
SPI is a single ended logic level non-terminated standard and, as such, not advisable beyond a few feet. For 20 feet, you can use Rs232 or better RS422 or RS485. If it absolutotally has to be SPI, I can visulaize, but would definitely not recommend SPI connected through RS?? transceivers.

Erik

List of 17 messages in thread
TopicAuthorDate
SPI for Micros separated by 20ft.            01/01/70 00:00      
   no SPI for 20 feet            01/01/70 00:00      
      SPI only serial port available            01/01/70 00:00      
         If you have to            01/01/70 00:00      
   Actually            01/01/70 00:00      
   Convert from SPI to UART            01/01/70 00:00      

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