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View Full Version : USBasp working on desktop but NOT on laptop!!



tousifzaman
07-30-2011, 10:21 PM
Hey guys,i have a problem in using usb asp on my laptop(windows xp based).I always get a message "Cannot recognize the usb device..device has malfunctioned". But the same usb asp is detected on my desktop(windows xp).

I googled and found that many have encountered the same problem.

Is there any way to solve this or it has to be used with desktop only??

shamikrudra
09-30-2011, 11:28 PM
which circuit you are using? is it using 3.6V zener diode in usb data lines?

d_gal_in_black
10-14-2011, 08:51 PM
is this a chinese USBASP.. well..the ones in market are all fake

shamikrudra
10-14-2011, 11:33 PM
Try to replace 68 ohm resistor with 47 or 56 ohm resistor. this has solved the laptop problem in many cases.