Cannot read fuses on ATMEGA8515 using STK500

Quit being puffed up, install Windows, install AvrStudio and enjoy. If you are really high and mighty, then don't ask stupid questions.

Vladimir Vassilevsky DSP and Mixed Signal Design Consultant

From an old makefile (mega128) here is the commandline I was using to read out the fuses:

SERIAL =3D /dev/ttyUSB0

avrdude -p m128 -b 57600 -c jtagmki -P ${SERIAL} -U hfuse:r:h- fuse.txt:i -U lfuse:r:l-fuse.txt:i -U efuse:r:e-fuse.txt:i

Perhaps you want to look at Rowley's Linux edition for Atmel micros since this would take out the guesswork and it's much easier to work with a real integrated debugger (IMHO). rowley.co.uk - a personal license will cost you $150.

Also, winavr works perfectly happily inside VirtualBox under Linux, as does the JTAG-ICEmkii and the STK500.

Maybe you do not have rights to write into the current directory.

Try

touch high.txt

to verify.

M.O.B. i L. schrieb:

^^^^^^^^^^^^

I've had many problems with the STK500 (and other programming devices) and USB-Serial bridges. A pcmcia serial card with a real UART solved all problems.

While I agree USB-serial bridges can be problematic, my experience with the Atmel tools (all of them, including Olimex's clones with FTDI USB interfaces) has been that they work very well over a USB-serial converter.

Thanks, this worked i Kubuntu 8.04: $ avrdude -c stk500v2 -p m8515 -P /dev/ttyUSB0 -U hfuse:r:h-fuse.txt:i

-U lfuse:r:l-fuse.txt:i

In Asus EEE Linux I had to add switch -F.

My Asus EEE has only 1 GB RAM and might not work well with Virtual Box.

...

Sigh... *Only* 1GB *RAM* ?

It should work well with half of this. BTDT.

But I returned to vi, make, gcc-cross, uisp/avrdude under Linux, as this is my basic OS. As I have to use Codewarrior from time to time, I am happy that it works in "wine".

A note on USB programmers: All that use the serial port as a ... serial port, will work fine. All that use bit-banging will not.

A cardbus LPT-card works well, a USP-LPT1 does not.

YMMV, Falk

Correction to above:

For STK500: avrdude -c stk500v2 -p m8515 -P /dev/ttyUSB0 -U hfuse:r:h-fuse.txt:r -U lfuse:r:l-fuse.txt:r

For USB-ASP: sudo avrdude -c usbasp -p m88 -U hfuse:r:h-fuse.txt:r -U lfuse:r:l-fuse.txt:r -U efuse:r:e-fuse.txt:r

The lines above for each uC-programmer stores the fuse-values in files that needs to be interpreted: od -d h-fuse.txt | head -1 | sed -e 's/0000000 *//' | xargs -i perl -e '$str= unpack("B32", pack("N",{})); $str =~ s/.*([01]{4})([01]{4})$/$1 $2/; print "$str\n";' (see AVR Fuses HOWTO Guide) This prints the fuse-values in binary form.

Alternatively for STK500: avrdude -vv -c stk500v2 -p m8515 -P /dev/ttyUSB0 -F

Alternatively for USB-ASP: sudo avrdude -vv -c usbasp -p m88

Here you get the fuse-values in hexadecimal form after a long text.