I bought recently the Olimex AVR USB JTAG Unit.
I do not have any target board as I am on a short visit to USA.
I would like to test the unit and make sure it is working before I leave USA.
I have downloaded and installed the latest AVR Studio v4.12 SP2 Build 472.
I am running Windows XP SP1.
When I connect the unit to the USB port, it is recognized and installed as COM Port 8.
I cannot change it to COM2.
Device Manager ->Ports ->USB Serial Port ->Properties ->Port Settings ->Com port number: (COM1 to COM7 - in use !!)
I have only one physical com port which is COM1 - I don’t know which app. is using those ports.
However, this may not become an issue since the latest version of AVR Studio seems to recognize Com8
AVR Studio ->Tools ->Program AVR ->Connect ->JTAG ICE ->Com 8
Connect failed !!
I can see upto COM9 in the combo box
After this point, I have no idea how to proceed further to check the unit.
Olimex’s AVR-USB-JTAG.pdf is very sketchy.
I have patiently gone through the various forum discussions and still no better.
There are plenty of complaints about “JTAG not working” - All those complaints could have been avoided if Olimex had given a simple step-by-step procedure for using the unit.
I don’t understand why Olimex chose to give the unit, a USB A Female connector. Although I bought my unit a few weeks back, I had to order and wait for the USB Male A to Male A Cable.
True, the website does mention about this. It just didn’t strike me at that time. I took it for granted all USB accessories will have a Male connector.
When I tried to plug the unit, I was in for a surprise 
If the connector had been Male A, I could have just plugged the unit directly to my notebook or used a standard extender cable.
The opening sentence “AVR-USB-JTAG (complete analog of ATMEL’s AVR JTAG ICE)” suggests that I should read the manual of Atmel’s JTAG ICE (Mark II ?) - Am I right ??
Can Olimex or some one in this forum help me with relevant info or links to such topics ?
If I take the unit back to my country and find that it is not working, then there is nothing that I can do. I can’t even ask for a replacement. The shipping costs would be prohibitive.
Regards,
KPS