CODEWITHSUNDEEP
avravrdude
uMinded
uMinded

Reputation: 595

AVR Dragon & Arduino (mega1280) Cannot enter programming mode

I recently purchased an Arduino with an atmega1280 on it. I did not get it to use the Arduino IDE but just as a handy board to use with AVR Studio and my Dragon.

I purchased a new computer around the same time and it is running windows 7 64bit, I downloaded AVR Studio 5.1 and plugged in my Dragon. I upgraded to the latest firmware as it forces you to do. I then connected the Dragon to the Arduino and I get the following error:

[ERROR] Failed to enter programming mode. ispEnterProgMode: Error status received: Got 0xc0, expected 0x00, ModuleName: TCF (TCF command: Device:startSession failed.)

I have verified the ribbon cable pinouts are the same on both ends and have continuity. Pin 1 goes to Pin 1 and so forth. AVR Studio can read the 5.0V on the sense line but that is it.

I then installed libusb-win (1.6.2.0) and used avrdude to get a more descriptive error: pasebin output

I have tried to wire up an atmega8 and atmega128 on breadboard with ISP and JTAG connections and I get the same errors as above but it makes more since so troubleshoot the PCB to PCB connection issue to eliminate any mis-wireings I may have.

Any idea where to start looking for the problem???

Upvotes: 3

Views: 4630

Answers (1)

chwi
chwi

Reputation: 2802

One thing is the power on the JTAG header, and another is on the actual chip. Could you try checking connections all the way from the AVR to the JTAG-pins? In my experience, there are almost always bad wiring, even if you think it is perfect. When that is not the case, the AVR is not getting power.

Are you trying ISP or JTAG or both? Does the AVR support JTAG? Is it ISP extracted from a JTAG connector?

Atmel's JTAGICE mkII documentation explains quite a bit of both ISP and JTAG. I just recently build a board with JTAG connection (http://www.avrfreaks.net/modules/PNphpBB2/files/display_105.png), which may be descriptive on how to connect your JTAG, and this I know is working ;)

Upvotes: 0

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