That'd be for Steve to decide I guess...JonAbbott wrote:LCDgm is setting the clock to 24MHz, should I change LCDgm to set 25.175 instead?PaulV wrote:Running at 66Hz indicates that you're running the VIDC clock at 24MHz.
Right I see, so as I understand it, the VCO needs to be set to something that will allow the 25.175MHz dotclock to be generated then.JonAbbott wrote:The reference clock is fixed at 24MHz, the VCO output can be anything from 55MHz to 100MHz which is then divided by up to 8 to set the pixel rate. It's incredibly flexible.
Ummm.. Steve's baby but...JonAbbott wrote:I've no idea , you tell me, LCDgm is your baby! What does 0.21 do?
I took photo's during my testing a dual VIDC Enhancer setup which shows the monitors OSD
http://www.retro-kit.co.uk/page.cfm/con ... -Enhancer/
About half way down that page it show the photo of MODE 15 with a dotclock of 24MHz and then a dotclock of 25.175MHz. Clearly these are from a VIDC1 driven Arc but the dotclock calculations should still hold true for VGA type modes in terms of dotclock to refresh rate.
Paul