Re: [CAD_CAM_EDM_DRO] troubleshooting help

Hi Bob,

By inverted pins, we mean that a logic '1' sent to the port will give a
low '0' out. Notice which pins are inverted. This is usually done by
"XORing" the data to be sent to the command port with a 1Bh CMD_MASK
byte.

HTH


Bob Bachman wrote:

>
> Please explain ' inverted pins '.
>
> Does this mean the pins are normally at 0 volts and goes to -5 volts with
> input?
> Or are the pins at +5 volts normally and go to 0 volts with input?
>
> An uninverted pin would normally be at 0 volts and go to +5 volts with
> input, right?
>
> Thanks,
>
> Bob
>
> >Notice that several pins are inverted, per the CMD_MASK.
>