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Old thread has been locked -- no new posts accepted in this thread
???
05/08/07 17:13
Read: times
#138847
- Is it VGA?
Responding to: ???'s
previous message
List of 52 messages in thread
Topic
Author
Date
8051 to VGA
01/01/70 00:00
nope..... but i do know
01/01/70 00:00
Video
01/01/70 00:00
well, if throiughput is a problem
01/01/70 00:00
VGA vs. NTSC (OK, PAL)
01/01/70 00:00
especially on CRTs?
01/01/70 00:00
flicker
01/01/70 00:00
Distortion
01/01/70 00:00
until today...
01/01/70 00:00
Logical Processors
01/01/70 00:00
not likely ...
01/01/70 00:00
sure, but what problem is that
01/01/70 00:00
It's the demand for precise timing
01/01/70 00:00
Monochrome?
01/01/70 00:00
He may be a bit misguided
01/01/70 00:00
Ive used an spi interface
01/01/70 00:00
This is the arbitary display overlay jobby
01/01/70 00:00
A NICE VIDEO GENERATING AND PROCESSING EXAMPLE!!
01/01/70 00:00
Is it VGA?
01/01/70 00:00
Video Buffer
01/01/70 00:00
and a "video DAC"
01/01/70 00:00
Well there are ways and ways ....
01/01/70 00:00
but VGA is twice as fast
01/01/70 00:00
VGA Pixel rate is faster but ...
01/01/70 00:00
If the MCU can\'t do it all ...
01/01/70 00:00
how about this one
01/01/70 00:00
"stuffer"
01/01/70 00:00
it'd better be a really cheap MCU
01/01/70 00:00
why?
01/01/70 00:00
the guy who pays for it would notice.
01/01/70 00:00
why?
01/01/70 00:00
The extra MCU contributes nothing. Why use it?
01/01/70 00:00
because
01/01/70 00:00
TEXT => Pixels = character generator
01/01/70 00:00
sure, but
01/01/70 00:00
True, but only sometimes ...
01/01/70 00:00
HUH?
01/01/70 00:00
so ... which MCU has those built in?
01/01/70 00:00
those?
01/01/70 00:00
Here's what "those" are ...
01/01/70 00:00
options
01/01/70 00:00
working examples
01/01/70 00:00
Nice to think folks remember Don's "cheap video"..
01/01/70 00:00
What do you mean, Phillip?
01/01/70 00:00
A notion not to radical or heretical ...
01/01/70 00:00
I still think it's either/or and not both
01/01/70 00:00
Like the vhdl that you'll find
01/01/70 00:00
Here's an ARM7 Driving a VGA Display direct
01/01/70 00:00
75 Ohm?
01/01/70 00:00
75 Ohm it is...
01/01/70 00:00
dc motor
01/01/70 00:00
start a new thead - and be specific
01/01/70 00:00
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