From: Sumit B. <sb...@ta...> - 2006-05-28 21:59:17
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Good to know. I have been doing some reading and this is my understanding of the interface so far (view with fixed width font; I'll put this on a website eventually) - GPSstix Sharp LQ050Q5DR01 My understanding ------------------------------------------------------------------------------------ LCLK PIN_3 Hsync signals the end of line BIAS PIN_13 CLK????? signals that new pixel data is ready to be read PCLK ????????? pixel clock FCLK PIN_28 Vsync signals the end of a frame LDD15 PIN_29 R5 RED_4 - Most significant bit LDD14 PIN_27 R4 RED_3 LDD13 PIN_25 R3 RED_2 LDD12 PIN_21 R2 RED_1 LDD11 PIN_19 R1 RED_0 LDD10 PIN_8 G5 GREEN_5 - Most significant bit LDD9 PIN_6 G4 GREEN_4 LDD8 PIN_4 G3 GREEN_3 LDD7 PIN_37 G2 GREEN_2 LDD6 PIN_35 G1 GREEN_1 LDD5 PIN_33 G0 GREEN_0 LDD4 PIN_24 B5 BLUE_4 - Most significant bit LDD3 PIN_22 B4 BLUE_3 LDD2 PIN_20 B3 BLUE_2 LDD1 PIN_16 B2 BLUE_1 LDD0 PIN_14 B1 BLUE_0 Since this LCD is an 18-bit display, I'll simply ground the least significant bits for blue and red (RGB565, I assume). I don't see a pin for the BIAS in the datasheet, however. Where does this go? PIN_13 is described as 'Clock signal for sampling each data signal'. If this is the BIAS, then to what does PCLK connect? Also, can I use the GPSstix to power the LCD (3.3V)? I have a picture of the lines available on this board at http://sumitbirla.com/temp/gpstix.jpg - Sumit David Vescovi wrote: > I used a Sharp LCD very similar to the one you have in my GPS application. > Should be possible. > > http://home.tampabay.rr.com/vescovi/gumstix/gumstix.htm > > DV > > > > > -----Original Message----- > From: gum...@li... > [mailto:gum...@li...] On Behalf Of Sumit Birla > Sent: Saturday, May 27, 2006 9:06 PM > To: gum...@li... > Subject: [Gumstix-users] Sharp LQ050Q5DR01 LCD > > Hello all, > > Has anyone interfaced this Sharp 5inch 320x240 LCD successfully with > Gumstix? Just trying to gauge how much work will be involved. I have put > the datasheet for this LCD at http://sumitbirla.com/temp/ for your > reference. It would be helpful if someone could take a look to catch any > potential show-stoppers. My knowledge of electronics is limited. > > The goal is to build an indash GPS/OBDII/MP3 device (I am probably not the > only one on this quest). Previous attempts resulted in a 'not so efficient' > design. I am glad that I discovered Gumstix; ordered it last week and got > the basic stuff working... console, USBNet, GPS, mp3 player, toolchain etc. > > > |