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Lpc2000

Index last updated: 2026-04-28 23:31 UTC

Message

RE: [lpc2000] LPC2138, VGA, and SD/MMC

2005-07-28 by jdarling@eonclash.com

Peter,

Actually I did manage to find an ARM7 with a built in TFT display that
can be easily (Their words not mine) hacked to do VGA with an external
memory chip.  Only two problems here :)
1) Its another chip I have to buy and learn
2) The code doesn't leave much processing time to do anything else.

Just in case anyone is curious:
http://www.revely.com/LAB100/LAB100_VGA_App.htm

So I've pretty much given up on the single chip solution.  Now I'm
looking into an FPGA/CPLD board that comes with a simple 6 bit DAC and
VRML VGA source code.  I'll have to replace the DAC and update the code
for a higher color ratio (god I hope it isn't very difficult to figure
out VRML) but it looks to be the only solution to my problem.

In the end I hope to come up with a simple to use 4, 8, or 16 bit VGA
card that is quite generic and powerful.  This way I can use it on my
small 8 bit micros as well as on larger projects.  Who knows thou as my
level of expertiese in all these areas is quite minimal.  I hope that in
the end the learning experience that I get from the whole project will
be worth it :).

Its always irritating that the big companies can beat us out, but that
doesn't mean I'm not going to try :).

Jeremy

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