I'm using port D[0-3] (PD12-15) for data. FLM, CP and LP are coming from PD[5,4,3] It's a passive monochrome display. I've configured it as such. It should be working. (See Fig 18-4 in the book) It came with an 8 bit color NEC display that worked, so I'm assuming there's a valid config already. I've checked PD_DIR and _PAR and they all seem to be correct.
My problems may or may not be related to the driver. It makes a horrible assumption that the color map is as deep as the display depth. This is normally true, but not for the 823e. 16 values must be programmed into the cmap. Maybe this is why my bits aren't coming out right. I'm attempting to adjust the driver to match*, but now my display doesn't even work incorrectly. :-( * I went into fbcmap.c and made a 3 new arrays and a new structure. red[16]={0}, green[16]={0}, blue[16]={0..15}. (See 18-3 in the manual) Blue's bits line up with 'GLC' when in not-color modes. (Transp is for displays that have RGBA) Then I packed it into a fb_cmap struct called default_mono and made the necessary changes where I thought they were needed (fb_default_cmap()). Adding to my confusion is 'int con' is passed into numerous functions in lcd832e.c but is never explained and I can't tell where it's coming from. Why or how a 1 bpp connection needs a 16 entry palette is beyond me. Any help on this issue is greatly appreciated! -Jason -----Original Message----- From: Dr. Craig Hollabaugh [mailto:[EMAIL PROTECTED] Sent: Monday, August 26, 2002 3:34 PM To: Hihn Jason; Linuxppc-Embedded at Lists. Linuxppc. Org (E-mail) Subject: Re: 4 bit LCD interface on 823e not working >I'm digging in the 823e book for any registers that may need to be changed. >-Jason Which port are you using? How are you configuring it? Do you have the all the peripherals turned off? ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/