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Adresare DS1307


Bird
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Va salut !

 

Vreau sa folosesc un DS 1307 pentru a scrie intr-o memorie I2C datele respective (anul ,luna, ziua, ore, minute si secunde , si apoi sa le " pun " pe un display . Am luat datasheet-ul de la DS1307 si am mai gasit si niste aplicatii gata facute care mi s-ar potrivi , dar ....

Din datasheet ar rezulta ca foloseste SPI , iar intr-un exemplu am vazut sa foloseste un BUS I2C .

 

"

I2CWrite SDApin,SCLpin,$D0,$00,[RTCSec,RTCMin,RTCHour,RTCWDay,RTCDay,RTCMonth,RTCYear,RTCCtrl]
"

 

Rugamintea mea este , sa-mi puneti de fapt cum accesez / adresez un astfel de device , mai ales cand am mai multe pe acelas BUS ? I-l pot folosi impreuna cu o memorie 24Cxxx pe I2C ? Memoria o "lucrez " din pini , un OneWire cu codul unic , dar pe DS1307 , cum ??

 

Va multumesc !

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.....................da ,deci este un device pe bus I2C, ......

Dar cum il accesez ? Are un cod unic ca OneWire senzor ? Daca da , atunci cum il stiu / citesc ?

 

Multumesc !

 

M-am lamurit ! Are un cod unic pentru toate RTC-urile , acelas model DS1307 ,

 

"The slave address byte contains the 7-bit DS1307 address, which is 1101000 "

 

pentru ca " de obicei " nu e necesar sa folosesti mai mult de un RTC in aceesi schema .

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