Is it possible to set usb voltage via script? - Script Writing - CHDK Forum
« previous next »
Pages: [1]   Go Down

Is it possible to set usb voltage via script?

  • 1 Replies
  • 3881 Views
*

Offline Kermie

  • *
  • 1
Is it possible to set usb voltage via script?
« on: 13 / October / 2009, 04:44:05 »
Advertisements
Hello

Is there any method one could set the usb voltage via script? If not, is such a feature easy to implement? I know there is the function for testing if usb voltage is set, but can it be set in a script for the camera to simply trigger some external device, such as another camera. I remember reading that it is possible to blink the led and use that to control other devices, but I would prefer the usb port as it is easier to plug a cable there. I was playing with the thought that I could use ixus 870 to trigger my slr by motion detection or use it as an intervalometer.
Logged
*

Offline Microfunguy

  • ****
  • 4037
    • StereoData Maker
Re: Is it possible to set usb voltage via script?
« Reply #1 on: 13 / October / 2009, 05:57:00 »
Quote from: Kermie on 13 / October / 2009, 04:44:05
Hello

Is there any method one could set the usb voltage via script?

No, the USB V+ is an input logic signal, not an output.

 
Quote
If not, is such a feature easy to implement?

You may be able to set the state of the output data lines.
There are some problems with it, EWAVR knows the details.i

Quote
it is possible to blink the led and use that to control other devices

That is what I do using the very bright autofocus LED.
I also blink the LED to talk to a microcontroller.


David
Logged
Pages: [1]   Go Up
« previous next »
 

Related Topics


SimplePortal © 2008-2014, SimplePortal