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