VOGONS

Common searches


Search results

Display options

Re: MDA/CGA/EGA to VGA Converter Released!

You have to disable all clocks and change the first to 120. But then I may not be able to set the others in the correct clocks. so you will probably have to remove the MDA/HGC and EGA modules and make only one for the poisk frequency. Thanks, i will try later. Should i change SRAM clock to 120 MHz …

Re: MDA/CGA/EGA to VGA Converter Released!

Try to identify the poisk pixel clock Thanks for replay. Yes, you are right. Poisk use 15 MHz crystal for CLK, so CPU run at 5 MHz. I think pixel clock is also 15 MHz or similar, not 14.3 MHz. if you could manage to change the FGPA code I am newbie in FPGA, i am trying change PLL2 c0 clock to 120.0 …

Re: MDA/CGA/EGA to VGA Converter Released!

Hello all Big thanks to retrocanada76 for his great video scandoubler. I build one today and tested it with all my video cards including MDA/Hercules and CGA clone. Image quality is perfect at all! But I have very interesting old soviet computer named "Poisk". This computer has almost CGA compatible …

Re: Next project? AY-3-8910 Sound Card

Nice idea to make YM2149 ISA soundcard. For some reason i build my LPT version back in 2014 (USB connector only to get 5V power from USB): https://hsto.org/getpro/habr/post_images/1bf/17b/ab5/1bf17bab54bdc0591e21c59fd7c236ad.jpg Then in 2015 i make USB version (based on pic16f microcontroller) : …

Page 7 of 7