MAME - Dragon Plus

[robcfg]

The CLK pin of the 6845 seems to be connected to pin Q2 of a 74HC161 High-Speed CMOS Logic Presettable Counter.

Datasheet here.

I need to follow the tracks on the composite view of the Dragon Plus to see where the inputs are coming from.

[Alastair]

I've no idea about the disk error though. Is there a FLEX manual anywhere?

You could try the FLEX User Group. There are two addresses, no doubt one is the mirror of the other.

http://www.flexusergroup.com/flexusergroup/default.htm

http://www.evenson-consulting.com/flexu ... p/fug1.htm

[Pernod70]

You could try the FLEX User Group.

Thanks, should prove useful. The error simply says DISK FILE READ ERROR, could the image be bad or do I have more issues, who knows!

[prime]

Here's the Eagle schematic that I traced from my Plus board, this may be of some help.

DragonPlus.zip

(79.54 KiB) Downloaded 230 times

Cheers.

Phill.