On Sun, 2008-03-23 at 23:18 -0400, Robert L Cochran wrote: > John Summerfield wrote: > > Robert L Cochran wrote: > >> I'm having trouble trying to access a USB device under Fedora 7. I think > >> udev might be my problem. > >> > >> When I try using avrdude with this line: > >> > >> [rlc@bobcp4 atmega644]$ avrdude -c usbtiny -p m644 -P usb -U > >> flash:w:blink_pb3.hex > >> > >> I get this error message: > >> > >> avrdude: Error: Could not find USBtiny device (0x1781/0xc9f) > > Try with a leading zero. .../0x0c9f > > > I got frustrated and tried this on Microsoft Windows XP...I have this > working on XP -- avrdude definitely detects the programmer device and > then it is able to initialize the target microcontroller through the > programmer. On Fedora 7, it cannot detect the programmer at all, and I > think that is either because there is a udev rules problem, or avrdude > was built without libusb support. Maybe I should get the source rpm and > check into that. > > I will try to put up a web page with photos of the programmer connected > to a breadboard with the target mcu (an ATMega644) and a test circuit to > play with...specifically an LED connected to pin PB3 that I want to blink. What was the name of the company that RedHat acquired in 2000 that had a software suite for microdevices?? They were in California, Sunnyvale, I dimly recall. Rahul, do you know this one?? It was one of RedHat's profitable entities. Ric -- ================================================ My father, Victor Moore (Vic) used to say: "There are two Great Sins in the world... ..the Sin of Ignorance, and the Sin of Stupidity. Only the former may be overcome." R.I.P. Dad. Linux user# 44256 Sign up at: http://counter.li.org/ http://www.sourceforge.net/projects/oar http://www.wayward4now.net <---down4now too ================================================
