This is really a better candidate for the Projects or Propeller 1 forums. Please restart the thread in one of those places.
Also, search for RS232 and RS485. They both use driver chips that apply higher signal voltages for longer distances. A MAX232 chip would be an example of an RS232 transceiver that you could put on both ends. It is normally used for passing asynchronous serial signals, but you could run synchronous signals through it. You may need to slow down the SPI signalling to ensure the data makes it through.
Mark Mara
Posts: 64
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This is really a better candidate for the Projects or Propeller 1 forums. Please restart the thread in one of those places.
Also, search for RS232 and RS485. They both use driver chips that apply higher signal voltages for longer distances. A MAX232 chip would be an example of an RS232 transceiver that you could put on both ends. It is normally used for passing asynchronous serial signals, but you could run synchronous signals through it. You may need to slow down the SPI signalling to ensure the data makes it through.
Andy