On Apr 20, 2008, at 10:26 PM, jiang chen wrote: > Deal Dr. Philip Levis, > > Reccently I am working on the MICAZ platform and I would like to > connect an additional hardware component (analog to > digital converter with SPI interface) with the MICAZ board by using > the 51 pin connector. > > I search on the web and know that someone ask you the similar > question about the possibility in tinyos to have several > external devices on the spi bus.You said "The SPI bus can have > multiple devices attached to MICAZ",and you also said > your group "have done this with external SPI devices, in particular > a storage board" > > The question and your previous answer are on > http://mail.millennium.berkeley.edu/pipermail/tinyos-help/2007-February/022801.html > > I meet the same question as the previous asker,and I want to know > your exact answer： > Is it possible to an additional hardware component share SPI port > with the radio chip cc2420 on MICAZ?
Yes. > If the answer is yes ,which pins should I connect the external > device to MICAZ? The SPI pins (SCLK, MISO, MOSI) and a digital I/O pin for chip select. So, the same pins as the CC2420, except you need a separate chip select. > > Can you share your code and your circuit diagram with me ?or could > you tell me which web I can find my answer? > Uh -- I'll see if I can find it somewhere. Phil _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
