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    Re: I2C RTC Problem with Pic18f46k22

    Dave,

    You were correct, and it was a register I shouldn't have missed... ANSELx registers. I guess the 4620 default was digital I/O since it ran fine in the past on that micro. I would have...
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    Re: I2C RTC Problem with Pic18f46k22

    I believe I got all the registers I needed to set. I have the RTC on pins D6 and D7 (Both set to output):
    SDA VAR Portd.6 ' RTC I2C serial clock line
    SCL VAR Portd.7 ' RTC I2C...
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    Re: I2C RTC Problem with Pic18f46k22

    I haven't tried changing the crystal. I will give that a try tomorrow.
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    Re: I2C RTC Problem with Pic18f46k22

    Al,

    I did:
    DIFINE OSC 16
    OSCCON = %11111111


    I also tried:
    DEFINE OSC 8
    OSCCON = %11101111
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    Re: I2C RTC Problem with Pic18f46k22

    I am using just the DS1307 (No ready-made module). I am using the surface mount SOIC package. I have used these plenty of times in the past. I don't recall if I ever used them on a pic running...
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    I2C RTC Problem with Pic18f46k22

    I have been using DS1307 Real Time Clocks for some time now without problems. I am attempting to port a program I wrote a while back from a 18f4620 to a 18f46k22 and I can't seem to get the I2C RTC...
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