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RTC problem interfacing ds1307 with pic18f4520 using C18

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dinhvanhoabk

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Hi Friends,

I am trying to interface a DS1307 with PIC18F4520.
porblem is read_ds h=0,m=0,s=0



help me please, and thank you
 

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  • rtc_hoabk.zip
    61.6 KB · Views: 103

Hi,

I think you have to configure the control register properly.

Thank you
 
Hi,
Find the attached code files for ds1307 RTC IC and I2C interface for pic18f252. It is written in Hitech PICC. To use change the extensions, headers and include files. Enjoy!
 

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  • i2c.h.txt
    1.6 KB · Views: 66
  • i2c.c.txt
    1.2 KB · Views: 70
  • ds1307.h.txt
    529 bytes · Views: 86
  • ds1307.c.txt
    3.3 KB · Views: 78
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