Yes, I checked memory.  I have 8K bytes available total. =20
 I have the first 512 bytes allocated as text RAM.
 I then tried allocating 1K bytes to Text RAM, but tat made no
difference.



Regards,

Jim

> -------- Original Message --------
> Subject: Re: [ENG]: T6963 LCD [AD]: T6963 LCD
> From: Jean-Paul Louis <louijp@yahoo.com>
> Date: Fri, July 25, 2014 2:09 pm
> To: "Microcontroller discussion list - Public." <piclist@mit.edu>
>=20
>=20
> Most likely, your controller chip is running out of RAM memory. did you c=
heck the data sheet for the Toshiba 6963?
>=20
> Jean-Paul
> AC9GH
>=20
> On Jul 25, 2014, at 2:50 PM, jim@jpes.com wrote:
>=20
> > All,
> >=20
> > I have been trying to control a Graphics LCD that uses the Toshiba 6963
> > controller chip.
> > I have gotten it to display text and graphics. however I have run into
> > an issue that I can't seem to figure out.=20
> >=20
> > What I'm seeing is I can't write text past column 12 in row 8. The LCD
> > I'm using is a 240 x 64.
> > I have it configured as 30 chars per row, and 8 rows. I have rows 1
> > through 7 displaying text.
> > For place holders in an array that I am using to hold the text, in the
> > first two positions on each row, I have an "L", along with the row
> > number (1 through 8).=20
> > At the end of each row, I have "END" along with the row number (1
> > through 8). This is true=20
> > on all rows except row 8.   On row 8, I can't write past column 12. If
> > I try I get nothing=20
> > on the display, and the port pins
> > act as if the unit is resetting, or drawing too much current and
> > causing the pins to cycle through=20
> > on and off cycles. If I put the line position back to 12 (0x0C) or
> > less, all is well.
> >=20
> > Also, if I change the OSCON register to anything other than what it is
> > currently, it does the same=20
> > thing. I have been working on this too long to be objective. Does
> > anyone have any ideas what might=20
> > be happening?
> >=20
> > I am open to any suggestions, and I would appreciate any insight anyone
> > might have.
> >=20
> > I am using the 16F887 for this project, I am writing the firmware in
> > assembler, and I am using the=20
> > EASY PIC 6 development board from Mikroelektronika to develop the
> > application.=20
> >=20
> > Please advise.
> >=20
> > Thanks and Regards,
> >=20
> > Jim
> >=20
> > --=20
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> > View/change your membership options at
> > http://mailman.mit.edu/mailman/listinfo/piclist
>=20
>=20
> --=20
> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
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> http://mailman.mit.edu/mailman/listinfo/piclist

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