Re: How do I programmatically send signals to USB?

unisonharmonics@xxxxxxxxx wrote:
Hello

How do I control voltages to pins of the USB programmatically?
For example, I'd like to say send a signal to individual USB pins (if
that's applicable in USB) how do I do that ?

AFAIK, you don't get to. The USB interface has (IIRC) D+, D-, +5v and ground lines. Your operating system will let you send streams of serial data, on the data lines, but nothing else. It sounds like you might be better off investigating parallel ports.

Cheers,
Nicholas Sherlock
.

Relevant Pages

  • Re: How do I programmatically send signals to USB?
    ... How do I control voltages to pins of the USB programmatically? ... I'd like to say send a signal to individual USB pins (if ... Could also be used on a serial port of a PC ...
    (comp.arch.embedded)
  • Re: How do I programmatically send signals to USB?
    ... I'd like to say send a signal to individual USB pins (if ... are used for signaling equipment states. ... Doug Miller (alphageek at milmac dot com) ...
    (sci.electronics.basics)
  • How do I programmatically send signals to USB?
    ... How do I control voltages to pins of the USB programmatically? ... I'd like to say send a signal to individual USB pins (if ... Also what's the appropriate newsgroup for this question? ...
    (comp.arch.embedded)
  • How do I programmatically send signals to USB?
    ... How do I control voltages to pins of the USB programmatically? ... I'd like to say send a signal to individual USB pins (if ... Also what's the appropriate newsgroup for this question? ...
    (sci.electronics.basics)
  • Re: How do I programmatically send signals to USB?
    ... How do I control voltages to pins of the USB programmatically? ... I'd like to say send a signal to individual USB pins (if ... connection or no connection and the information/control is in the ...
    (sci.electronics.basics)