Old PC`s and Mach3

[magicniner]

(I must just be a reactionary old fart ).

Rob,
I don't think that's the case, everyone is best sticking with what they're happy with.

Windows 7 simply gives access to several later generations of PC hardware,
Regards,
Nick

[Clive S]

It also depends if it is 32bit or 64 bit syatem

[magicniner]

It also depends if it is 32bit or 64 bit syatem

Given that parallel ports are not supported under 64 bit then external motion controllers would be the only option in 64 bit, Mach3 still works under 64 bit though

- Nick

[Robin Hewitt]

Takes me back...

C:\>debug
-d40:0
0040:0000 F8 03 00 00 00 00 00 00 - 78 03 00 00 00 0B 02
-q
C:\>

Meaning one serial port at 03f8h and one parallel port at 0378h so if you wrote to 0378h your data would be on the pins in microseconds if not faster.

Of course you were supposed to access it via the BIOS, not that that would slow it down much.

It only really goes tits up when writing to 0378h causes an interrupt that will join the queue to sort the mess out at some nebulous time in the future.