[En-Nut-Discussion] Multiple devices on the SPI BUS

ennut at thezachariasgroup.com ennut at thezachariasgroup.com
Wed Aug 13 05:01:38 CEST 2008

   Which processor are you using?
The Atmel AT91SAM7X series has a problem with multiple devices on the SPI bus.

At 08:23 PM 8/12/2008, you wrote:
>My board has three devices connected to SPI0.  It has an SD/MMC, Real-time
>clock, and another MCU for interprocessor communication.  Both the ftpd and
>httpd example software is running on my board with the PHAT file system and
>an SD card.  The SD card driver is functioning and the next step for me is
>to develop code for the RTC and the MCU communication.  What is the best way
>to access the SPI interface without interfering with the PHAT/SD card

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