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Re: Where Is The AVRISP USB Programmer When I Plug It In?

Mikkel L. Ellertson wrote:

First, thanks a lot for taking the time to make your suggestions. I really appreciate it.
Stopping IPtables is not going to help. This is not a network
problem. IPtables will only affect a USB NIC, and not other USB
devices on the local machine.
Good point, I should have considered that. Maybe I was really thinking of SELinux. But it's disabled on this machine. Silly of me.

If the problem were that the program could not write to the serial
port, you should see that is the dialog from avrdude. It looks like
the program is able to read and write the port.
OK, I follow you (and am learning from you too.)

Now, I have a couple of questions:
Does the programmer plug directly into the USB bus, or is the a USB
to serial adapter that is then plugged into a serial port on the
It plugs straight into a USB port. Has the usual 'A' style USB connector. There is no USB-to-serial adapter although I have one still in the clamshell packaging. If you want I can send you a photo of the programmer off-list.
Is the programmer a USB to serial device with TTL level outputs? If
so, are you doing this with the cable plugged into something you are
trying to program?
I'm not sure what you mean here by 'USB to serial device with TTL level outputs'. Yes, the programmer is plugged into a USB port on my FC5 machine at one end and an Atmel-based controller board on the other end. I want to program an Atmel Atmega128 chip which is on the controller board. It has a Maxim Max3222 chip on board. The board is intended to be a robot controller.

Do you have any other USB serial devices? (ls /dev/ttyUSB*) If so,
are you sure you are using the correct one?
There is only /dev/ttyUSB0.
Are you sure the programmer works?

No, I'm not sure. I'm going to test it on a different computer tonight.



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