I've Got VGA Output!!

A project log for ISA 8-Bit Video Experiments

A Series of Experiment to Create an ISA 8-Bit Video Card

Dave's Dev LabDave's Dev Lab 10/22/2019 at 14:460 Comments

After a considerable amount of debugging, (with the help of @agp.cooper and @Alastair Hewitt ) I was able to get solid 40x35 text output from my 8-bit video board! I'm using a 8x16 font with the resolution of 640x480@60Hz and driving it with a pixel clock of 12.5875MHz, which is within the range of the clock speeds supported for the MC6845. I've got a ton of stuff to test before making a new revision of the board, but..... it works!