Dont Know what I was thinking.  (Too many dusk til dawn sessions)

I found out I need to do a
TBLRD*-

after the erase then skip the new loading of the address pointers.  this
solved the problem.

----- Original Message -----
From: "Michael Simpson" <msimpson@HIS.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Sunday, August 11, 2002 2:53 AM
Subject: [PIC]:Problems writing to program memory on a 18F242


on a PIC 18F242
I have set up a program that erases 64 bytes of program memory and writes 64
bytes of data in 8 byte chunks (per docs).

here is the code that sets up the pointer
movlw upper program
 movwf TBLPTRU
 movlw high program
 movwf TBLPTRH
 movlw low program
 movwf TBLPTRL


It eraces fine but the data is offset by 8 bytes.

In other words if I set up the pointers to write at 0x3000 the data is
written starting at 0x3008.


I have to add the following afters seting the pointers to get it to write
properly.
TBLRD*+
 TBLRD*+
 TBLRD*+
 TBLRD*+
 TBLRD*+
 TBLRD*+
 TBLRD*+
 TBLRD*+

Any one done this before???

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