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Spi bus

 
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joven



Joined: 30 Jan 2007
Posts: 56
Location: Viana do Castelo - Portugal

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Spi bus
PostPosted: Mon Apr 16, 2007 4:18 pm     Reply with quote
Hi

I need connect the adc and the mmc in the same spi bus.
Can i connect in the same line the data in or data out of the adc and mmc? or need make another connection?

Thanks
kd5uzz



Joined: 28 May 2006
Posts: 56

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SPI BUs
PostPosted: Mon Apr 16, 2007 7:27 pm     Reply with quote
The Data lines are shared among all SPI slaves, each slave should have a CS or Enable line. To talk to MMC you would drive the MMC's CS line low, perform your SPI transactions, then bring the MMC CS high. Do the same thing for your SPI ADC.
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