Re: Help writing a USB driver

Mercy wrote:

Tim Wescott wrote:

At least one of the flash card protocols includes the ability to
communicate with the card over SPI, so you don't tie up a bunch of
processor pins. A recent Circuit Cellar had an article on doing just
this -- it would be in the May-July time frame, probably.



When you guys refer to SPI, are you talking about:

Serial Peripheral Interface or System Packet Interface?

Also ... how can I identify what I have?

Serial Peripheral Interface, AKA 'the easy way'.

I don't know what you mean by identifying what you have -- I thought you had some design requirements to which you wanted to fit hardware.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Posting from Google? See http://cfaj.freeshell.org/google/

"Applied Control Theory for Embedded Systems" came out in April.
See details at http://www.wescottdesign.com/actfes/actfes.html
.

Relevant Pages

  • Re: Augh! WTF megabaud?
    ... >The SPI you want is the 'Serial Peripheral Interface', ... >Motorola (now either Freescale or OnSemi, ... >There's a different 'SPI' physical layer that refers to the SPI-x ...
    (sci.electronics.basics)
  • Re: Augh! WTF megabaud?
    ... The SPI you want is the 'Serial Peripheral Interface', ... Motorola (now either Freescale or OnSemi, ... There's a different 'SPI' physical layer that refers to the SPI-x ...
    (sci.electronics.basics)
  • Re: DC Motor Control: H-Bridge +5A, 48v
    ... I would really like to find something with these capabilities that uses SPI to communicate with a microprocessor. ... Wescott Design Services ...
    (sci.electronics.design)
  • Re: SPI performance on Freescale MPC83xx?
    ... hundred kHz) serial peripheral interface. ... Since our SPI traffic is short ... clock is 128MHz and the CPU clock is 384MHz. ... CPM loading was high, SPI just might push it over the edge. ...
    (comp.sys.powerpc.tech)
  • Re: Question regarding SPI (Serial Peripheral Interface)
    ... they're just what the manufacturers call them. ... "SPI" is pretty common terminology, but one manufacturer's SPI port won't necessarily be exactly the same as another's, nor will their terminology necessarily be the same. ... Wescott Design Services ...
    (comp.arch.embedded)