I am a complete novice to microcontrollers, do not judge me strictly.
Recently purchased several ATxmega256A3U-AU and debugger AVR-JTAG-USB from Olimex: https://www.olimex.com/Products/...
(Yes, I know that VCC, AVCC needs LC filters, additional capacitors and voltage regulator IC)
Connected this board to a 3.3V laboratory power supply. I didn't program the MCU and decided to just connect to it through JTAG.
Installed FTDI driver for the debugger device and it is defined in Windows 7 as a USB Serial Port (COM3). I installed AVR Studio 4.19 and tried to connect to the MCU.
(In the "Select AVR Programmer" dialog, selected "JTAG ICE" Platform and "Auto" Port).
2. Description of the problem.
After clicking "Connect", an error appears:
I tried different settings in the dialog "Select AVR Programmer" and FTDI driver but it didn't help.
I am sure that the MCU is working and sends data to the device through the JTAG.TDO port (Checked this with an oscilloscope by disconnecting the MCU.PB7 pin from JTAG.TDO contact).
I recorded a oscillogram of all data pins of JTAG connector:
|Inverse of "Activate target device external reset upon connect" checkbox state in the error dialog|
But I'm not sure that decrypting the JTAG protocol will lead me to solve the problem.
The description for the debugging device said that it does not support my MCU series. Did I just buy the wrong debugging device?