Calendar with PIC

[Eugeniu]

Hello !

Are somebody doing a " CALENDAR "( DAY, MOUNTH , YEAR ) with a PIC and LCD ?

Thank you !

[mister_e]

There's some easy route to use if you want to.

DS1307 RTC.
http://www.melabs.com/resources/samp...ted/MN1307.txt

[Eugeniu]

There's some easy route to use if you want to.

Thank you very much for this link . Is usefully .

[Eugeniu]

Tell me please , has DS1307 only a single address code for all with this type ? In datasheet write :

"The slave address byte contains the 7-bit DS1307 address, which is 1101000, followed by the direction bit (R/W),"

If they have everyone a unique code , how can I know it ?

Thanks !

[mister_e]

Don't worry, they all have the same... but you can't stack few of them on the same BUS like most I2C device who have those A0, A1, A2 lines on.

[Eugeniu]

......but you can't stack few of them on the same BUS like most I2C device who have those A0, A1, A2 lines on.

Only , becose is not necessary , yes ?

[mister_e]

Maybe, I don't know a situation where someone would need more than one RTC for a single project... possible, but probably not very common...

You can add some other I2C device on the same I2C bus line though... just not another DS1307.

[Eugeniu]

.........You can add some other I2C device on the same I2C bus line though... just not another DS1307.

Thank you very much , Steve , was , very impportant for me . I am reading much documents to understand this , and I was not sure yet . Now I am !