I am unable to connect using AVR Studio 4.13 SP1.
I installed the serial-usb drivers and mapped the port as COM2: but I am unable to connect using AVR studio.
Is a target board required in order to upgrade the firmware or connect ? I am trying without a target board connected to the probe.
Ok, I connected a target board and AVR studio prompted me in order to upgrade the device, the upgrade finished and now the probe seems to be dead…
Suggestions ? is it possible to re-flash it ?
Here the same: after getting an error at the end of the requested upgrade, the internal MEGA16 doesn’t work anymore. Help, please!
I had some trouble with my project, and I made an upgrade with avrprog and the probe seems to be dead too.
I open the box, and look at the board.
The pin 44 (port pb4) of the atmega16 seems to be connected to the RST (pin 6) of the connector Jtag via a resistor. All of the schematics of JTAG ICE programmers are differents on the net. It’s the port Pb0 that is connected to the pin 6 of the JTAG ICE connector, and not Pb4.
So, I don’t know how It’s possible to upgrade this probe…AVR USB JTAG-D.
I got my Olimex USB JTAG fixed, but I’m not sure, that a later update will work: I opened the JTAG-box, soldered a typical serial ISP-cable to the MEGA16 and could read the Flash data through a STK500. Obviously the first block (from address 0) had been erased (FFs only).
Then I prepared the STK500 with a MEGA16 and a similar circuitry, found in the internet, which got an initial program. By connecting this to the AVR studio, the upgrade was successful, so I could read the new code from the STK500-MEGA16.
In comparison I noticed, that the upgraded code in the Olimex was the same, so only the first block seemed to be erased in the end again. Well, the booter is different, too. I mixed the Olimex booter to the upgrade and flashed the Olimex again via STK500 ISP. And it worked again! But it was neccessary to disable the boot vector, I don’t know, possibly the booter is called from the JTAG code? It might be an explanation for the upgrade problems…
Regards,
Matthias