Comments on: Build your own AVR JTAG ICE clone

By: davidrs

davidrs — Sun, 21 Mar 2010 23:07:11 +0000

I found the JTAG ICE CLONE and decided to try it
EVERYTHING worked fine; Bootloader, software, and
hardware…
I flashed a small program into my target, also a
MEGA16, @ 16mhz, all went fine…
I went into DEGUG, STUDIO4 4.16 in “C” , and recieved the following ERROR meassage:
Could not connect to JTAG ICE…
I know this puppy is WORKING but why the
message?
Can you help???

By: Partha

Partha — Fri, 12 Mar 2010 20:50:04 +0000

I tried to burn the boot.hex file u provided here using WINAVR, but it failed, it gives this error–\make.exe: *** No rule to make target `boot.eep’, needed by `program’. Stop.\
—-Ponyprog also failed to detect the device. Please help me. mail me at urpal.partha@gmail.com or post here

By: Aurangozeb

Aurangozeb — Thu, 11 Feb 2010 07:20:41 +0000

Go to the link given Below.
http://www.avrportal.com/?page=jtag
Here you can find the sourc code. But there is a one mistake. PB4 pin of JTAG should be connected with the RST PIN of Target. Or you can find by observing your source code.

By: saeed ahmed

saeed ahmed — Wed, 03 Feb 2010 09:15:16 +0000

hello author,
sir i m facing a problem with jtagclone the one build by withe refrenec to ur tutorial on the following link http://www.scienceprog.com/build-your-own-avr-jtagice-clone/ jtag programming is ok but problem in emulation the code do not run from the avr studio through jtagclone and the controller operating normally ,step into or f11 controle donot effect the controller code.plz help in this regard.
regards
saeed ahmed

By: saeed ahmed

saeed ahmed — Mon, 01 Feb 2010 12:24:02 +0000

hello author,
sir i make a jtag progrmmer and its ok in the first attemp by putting the hex file available on this site the communication is ok and i programme atmega 32 and mega16 but there is some problem
1:
as i know it is an emulatoar also but when i wana debug the code by start debugging and by pressing the step into or f11 button on the key board the code is stepping into in the avr studio but the controller is normally operating and the code contrle is not transfer to the avr studio or i can say jatag emulator.
2:
the second thing is that its capable of isp progammming also by connecting the jumper on pb0 to the ground but when i connet the jtag programmer/debugger in the avr studio it is all the displaying in the jtag mode and not in the isp mode .
sir kindly help me to solve these two problems.
regards
saeed ahmed