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using SPI on mega8..couldn't comprehend

 
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Phani

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Joined: 31 May 2005
Posts: 1
Location: Monroe
PostPosted: Tue May 31, 2005 7:55 pm    Post subject: using SPI on mega8..couldn't comprehend Reply with quote
I am trying to use SPI of mega8 (as master and SPI of sensor as slave)..but my sensor needs a byte as input and returns 16 bit value as output. It takes 100 ms after recieving an input to send output..

I couldn't comprehend the SPI functions to realize this situation..

Anyone did encounter the same problem??

any suggestions??

Regards,

Phani.
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Frankeman

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Joined: 11 Aug 2004
Posts: 945
Location: the Netherlands
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PostPosted: Wed Jun 01, 2005 9:22 am    Post subject: Reply with quote
Hi,

It is not so difficult to do the SPI yourself.
Toggle a pin (clock) 8 times while on an other pin (data) you put bit the 8 bits.
Wait 100 ms
Toggle the clock pin another 16 times while reading back the bits received.

Frank.
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