At 06:45 PM 14/09/2002 +1000, you wrote:

Do you have pull ups on SCL/SDA??


>Hi,
>
>I have tried to read/write to a x24F128S EPROM, I think it is referred to as
>I2C, but have never worked out from previous posts what the acronym is for.
>
>I tried my own code, unsuccessfully, then tried code from the list again
>unsuccessfully.  I never get a ACK and reasonably confident that the pic is
>driving the port properly as I tested it using a parallel port capture
>program.
>
>The device X24F128S is a 3.5 volt device (I have easy access to these and
>not the 5 volt versions).
>
>I use a 2k resistor between the PIC port and the EPROM and have separate
>power supply for the PIC and EEPROM which is commoned to both.  Should this
>be ok or does it sound like this is my problem.
>
>If I can be confident this is NOT causing the problem I will continue trying
>to fix it, thou I feel I have exhausted all possible problems.
>
>Regards
>Justin
>
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