Hi, Thanks a lot and sorry for the mistakes. I have gone through the trm of the adc as well as the omap driver. my question is that i want to interact the adc to the board. now should i directly use the omap driver or should i mak one of my own. if i make one of my own then i would like to know how would the spi registers be changed by driver. should it include the omap2 driver or is the fuctionality provided directly when i include spi.h.
another doubt: when and why is the spidev.c/h used? i am deeply grateful towards you for helping me out thanks Arnav On Fri, Apr 24, 2009 at 11:50 AM, David Brownell <davi...@pacbell.net>wrote: > On Thursday 23 April 2009, Arnav Das wrote: > > i am a newbie > > Lesson #1: make sure your Subject: lines match the message > topic (I did a partial repair) and don't post to the wrong > list (e.g. PPC lists for OMAP questions). > > > > and am doing a project on beagle board(running > > omap3530). i am interfacing an adc(ads7886) to the beagleboard via > > spi. need to know how the spi works > > Read the ads7886 data sheet, in this case. It uses > a subset of SPI ... no input commands, just a 12-bit > sample returned each time chipselect pulses. > > > > and how a module can access the > > spi registers of the omap. if someones already made an adc driver can > > they mail me? > > Use drivers/spi/omap2_mcspi.c on OMAP3 boards, at > least to start with. If you want streaming conversions > you may want to use different modes than are currently > supported by that driver. > > - Dave > > > > >
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