On Thu, 12 Jun 2003, Roger Froud wrote:

> Many thanks for that keen observation, I have no idea where my datasheet
> came from. The new one is about twice the size and includes the missing
> line. The read now works but the write is still not working.

Do you have the EEPROM write-protect configuration fuse cleared by any
chance?

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of John Temples
> Sent: 12 June 2003 22:04
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]:PIC18F458 Data EEPROM R/W example doesn't work?
>
> On Thu, 12 Jun 2003, Roger Froud wrote:
>
> > There seems to be some confusion in the data sheet PIC18FXX8.PDF as
> the
> > diagram 5-1 refers to bit 6 as EEFS in EECON1 whereas diagram 6-1
> refers
> > to bit 6 as CFGS.
>
> I suspect you have an old datasheet; there's nothing called EEFS in
> the current 18Fxx8 datasheet.
>
> --
> John W. Temples, III
>
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John W. Temples, III

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