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ATMEGA8535 SPI to DS1305 nvram

2004-06-04 by sguhrofst8

can anyone help. I have not been able to successfully talk to my nvram
on the DS1305 using the SPI interface from the ATMEGA... I am not
using the the calendar/time, etc options of the DS1305 just the
memory. It seems that each time I read the SPDR register, it contains
the last byte i sent. 

Thanks in advance.

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