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phonoplug1
56 posts
Frequent Visitor
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16-01-2010 01:14
Hi... How can we get a real conversation going in here? I keep checking this forum every now and then and its dead! Whats happening in here? Is nobody making anything interesting, stuck developing something or got some really good ideas to share?
Come on people...
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vvvv
75 posts
Frequent Visitor
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26-01-2010 01:11
yes,I agree..posts 1 views 10,000
This forum has always been like that with little or no feedback with the exception of ELEKTOR projects.
I think it's down to the fact that ELEKTOR is read by skilled,qualified and intelligent people and from my experience they don't seem to share their knowledge.
Oh well,we can make a start here:
years ago I designed and built a RS232 to composite video board using a motorola CRTC and a 8031.
Recently I came across a single PIC solution but unforunately it was written in BASICPro .don't have a compiler and never used the software.
Nevertheless a hex code is provided so shall burn a PIC using my old programmer since the PICKIT2 doesn't have the facility to manually set the fuses.You can bet the hexcode doesn't contain the correct fuse information.
will let you know how i get on.
the pic only arrived from FEC today.
Regards
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vvvv
75 posts
Frequent Visitor
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26-01-2010 01:15
nearly forgot.
4D systems have a neat serial to vga video board with RGB
Post edited by vvvv
on 27-01-2010 13:27
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vvvv
75 posts
Frequent Visitor
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27-01-2010 13:25
I guessed it- no configuration fuse information in the hex code.
But,PICKIT 2 now has new V2.61 setup and now able to edit the configuration so that the oscillator type etc can be edited.In this case internal OSC with PLL x 4 giving a clock frequency of 32 Mhz.
The rs232-video circuit was built on a strip board and gives intermmitent operation.So sensistive,when I place finger on the PIC is stops working.
So next step is to design PCB with ground plane and see what happens.
The joys of debugging someone else's design!
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phonoplug1
56 posts
Frequent Visitor
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29-01-2010 22:33
I'm curious. What are you using this system for?
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vvvv
75 posts
Frequent Visitor
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29-01-2010 23:12
in my past life i was a repairer.
so designed test equipmemt.e.g. PIC-based RGB and white VGA generator.
This pinched design I will dispense with the RS232 (it unreliable) and with a 100 mA lipo battery use it as a simple video generator for testing televisions.
Also useful for fault-finding on CCTV systems as the unit outputs a standard 1 volt p-to-p composite video signal.
The hexcode text section can be viewed and edited using VC.COM
and then burned back into the PIC.
Post edited by vvvv
on 01-02-2010 00:56
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