OMAP, nice! but will be an overkill for our application

Gus

--- In l..., "Paul Curtis" wrote:
>
> Hi,
>
> > Is there an LCD to VGA ready-made circuits out there? (basically
> > FPGA+RAM)
> >
> > I was able to generate VGA 640x480 timing using an LPC2478. This greatly
> > slowed down the system, due to the high load on SDRAM.
> > Now, to go to higher resolutions, it is not much of an option on
> > LPC2478. I have seen a VGA frame generator chip before that have built
> > in frame buffer and then you can use LPC248 to clock 1024x768 at low
> > frequency to the chip and then the chip will take care of generating the
> > high speed XVGA timings. It found only one company but I was not able to
> > get any communication back from them!
> >
> > IS there someone that offers a circuit (FPGA/RAM) to take in the LCD
> > signals at low clock rate (4Mhz maybe) and then this circuit will buffer
> > the data on RAM then take the same data and generate the required
> > timings?
> >
> > My understanding is that this can be easily done using FPGA but I know
> > thing about FPGA!
>
> Why not use an OMAP or iMX51, these support HDMI... It's a step up, I
> would grant you. ;-)
>
> -- Paul.
>
> --
> Paul Curtis, Rowley Associates Ltd http://www.rowley.co.uk
> CrossWorks V2 is out for LPC1700, LPC3100, LPC3200, SAM9, and more!
>

Start a New Thread

The G Man schrieb:

> OMAP, nice! but will be an overkill for our application

But if you care for reducing number of chips, there are others around,
like PXA320 which have a LCD controller which can do also VGA.

Ok, depends how much of your application is already done.

Why don't use a second LPC as "intelligent" GFX controller with its own
SRAM connected via SPI ?

--
42Bastian
+
| http://www.sciopta.com
| Fastest direct message passing kernel.
| IEC61508 certified.
+
Start a New Thread