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SPI @ 26MHz — Parallax Forums

SPI @ 26MHz

MD2010MD2010 Posts: 11
edited 2010-07-28 20:34 in Propeller 1
I am working on a project that requires a 26MHZ SPI communication. Is it possible to do it with this microcontroller?

Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2010-07-28 20:05
    It's possible, but not simple and depends on the details of the device being used. The normal instruction time for the Propeller is 50ns, so you get 20MIPS.
  • MD2010MD2010 Posts: 11
    edited 2010-07-28 20:13
    I tried to use the ShifIO.spin but I could get it to work at high speed. It seems that every time my delay was less than 1us, the microcontroller stop responding.
  • DynamoBenDynamoBen Posts: 366
    edited 2010-07-28 20:34
    You might want to look at the Wiznet 5100 code (search forums), or the Microchip ENC (OPEX) code they are both SPI (to ethernet) and are relatively high speed ~10mhz.
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