Windows 7 and ISP

Forum 2005-2010 (read only) Hardware Interfacing
1

Hi All,

I've been using Limor's USBTinyISP programmer with Win2k OS. That worked fine. Now my new laptop has Windows 7 and the driver for the TinyISP does not load due to the driver not being signed$$$.

I tried the ArduinoISP but I am getting errors writing EEPROM. I use command line avrdude to write eeprom and fuses. The data is apparently written to eeprom and then read back out and checked agianst the original. This check fails. Have not looked into this any further.

What ISP will work with Win7 and Arduino (I add to boards.txt to program with ISP thru Arduino) and avrdude and target boards from 3 to 5volts?

Thanks,
Rich

2

I think there is an option somewhere in Win. 7 to relax the requirements that drivers should be signed.

If you google it you should be able to find something.

3

I've read that if you press F8 while booting Win7 that you can use unsigned drivers. I did this and the only thing that happened was that no USB device worked at all.

4

I guess someone should make a driver for the brain2google Programmer.

http://www.killertechtips.com/2009/05/06/disable-driver-signing-in-windows-7-using-group-policy-editor/

5

Yes Google sure is useful :wink:

6

OK - some really great ideas! I tried the one that apogee recommended. I turned off driver signing requirements. Used gpedit.msc on Win 7 64 professional to edit the signing requirements. As a side note - my other win 7 Home Premium laptop does not have this tool.
Now the driver installs seemingly fine. But now arduino and avrdude can't find it. The error is:
Could not find USBtiny device (0x1781/0xc9f)

Later I'll research this (google)and see if there is anything to do.

Rich