cga to vga converter uPython

Are you looking for something like this RGB to VGA adapter? They cost about $1.

I think they mean the old IBMPC Color Graphics Array RGBI TTL output

https://en.wikipedia.org/wiki/Color_Graphics_Adapter#DE-9_connector_for_RGBI_monitor

RGB + Hsync Vsync. the adapter should contain 5inputs the one youl listed looks like 3 inputs

sorry the other reply was for the original comment.

i looked up your link and hsync is pretty similiar, but vsync is 63hz not 59.xxx

the sync is ttl level

rgb also ttl level

mine has no intensity output and rgb signals look like low high

possibly you are right and my machine was derived from this standard, its a cnc mill sinumerik controlled operators panel

sorry the other reply was for the original comment.

i looked up your link and hsync is pretty similiar, but vsync is 63hz not 59.xxx

the sync is ttl level

rgb also ttl level

mine has no intensity output and rgb signals look like low high

possibly you are right and my machine was derived from this standard, its a cnc mill sinumerik controlled operators panel

Probably just ignoring the intensity bit in that case.

Perhaps something more like this then:

https://www.amazon.co.uk/Mcbazel-Arcade-Converter-Monitor-Projector-Black/dp/B078ZDTLBJ/ref=sr_1_1

That looks like it will do the job!

Some more to check out

https://www.serdashop.com/MCE2VGA

( https://github.com/lfantoniosi/mce2vga )

https://www.serdashop.com/MCE2HDMI

this card is documented that not working with industrial equipment even if its advertised that it should, i bought one similiar card recently and nothing

How about this R-Pi Zero + CPLD based one:

https://github.com/hoglet67/RGBtoHDMI/wiki

You would need an HDMI monitor or a HDMI to VGA adapter.

However it has options to create custom timing profiles or alternatively the design is there to roll your own.

Yeah i started it because i think its doable but as using my logic analyzer and looking at different boards and different codes, the signal processing looks pretty erratic for me and the stated cycle clocks are usually different in reality as in theory

An FPGA approach is also a very good one. Lots of VGA example code out there to reuse. Depends on what the OP is comfortable with.

i was thinking about it. im an enthusiast who started on arduino, but in school always loved logic circuit design and fpga is something like that, but i would need some pinpointing:

- is there any arduino like reprogrammable fpga board for learning?

- what kind of programming languages FPGA-s using to program them and what is the whole approach to make it work?

I recall that Ben Heck did a project with FPGA to convert to VGA a while back. Might have been the Giant Game Boy episode.

That rings a bell. I recall I wanted to do a similar thing for a Game Gear I had lying around, but never had the time for it : (