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? If the answer is yes ,which pins should I connect the *external device to MICAZ?* ** *Can you share your code and your circuit diagram with me ?or could you tell me which web I can find my answer?* ** *Thank you for your patience* ** *Johnson * *04/21/2008*
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