[FIXED] Problem burning bootloader

Forum 2005-2010 (read only) Hardware Troubleshooting
1

Hi everyone, I decided to build my own serial arduino board (as per http://www.arduino.cc/en/Main/StandaloneAssembly).
However, I couldnt get my hands on a 16Mhz crystal, so i used a 10Mhz one instead. I also built a parallel programmer.
Trouble came when I tried burning the bootloader with the Arduino software (using the parallel port programmer). it fails with:

avrdude: AVR device not responding
avrdude: initialization failed, rc=-1
avrdude: Yikes!  Invalid device signature.
avrdude: Expected signature for ATMEGA8 is 1E 93 07
avrdude: AVR device not responding
 ***failed;  
avrdude: verification error, first mismatch at byte 0x0000
         0xca != 0xff
avrdude: verification error; content mismatch

I also tried burning the bootloader with uisp (ATmegaBOOT.hex is the bootloader for atmega8 downloaded from svn.arduino.cc):

sudo uisp -dprog=dapa -dpart=ATmega8 if=./ATmegaBOOT.hex -dlpt=0x378 --erase --upload

Here, it seems everything went fine according to the output:

Atmel AVR ATmega8 is found.
Erasing device ...
Reinitializing device
Atmel AVR ATmega8 is found.
Uploading: flash

However, the LED (connected to SCK Atmega8 pin 19) never blinks when I reset the board. It only turns on when I connect the parallel port programmer, and it flashes two or three times when I use uisp (it doesnt flash at all when I use the arduino software).

Now the question is: Does this happen because I m using a 10Mhz crystal instead of a 16mhz crystal ?
I did check the board a couple of times with a multimeter, and I dont think there are any issues...
Help would be greatly appreciated.
Gilles

2

Which version of Arduino software are you using? With version 0010 the device signature seems to fail sometimes.
Can you try version 0011 with the same parallel programmer?

With UISP, I used this three command lines with DOS, in this order, one at a time (you used only the last one):

uisp -v=4 -dpart=atmega8 -dprog=dapa -dlpt=0x378 --wr_lock=0xFF
uisp -v=4 -dpart=atmega8 -dprog=dapa -dlpt=0x378 --wr_fuse_l=0xdf --wr_fuse_h=0xca
uisp -v=4 -dpart=atmega8 -dprog=dapa -dlpt=0x378 --erase --upload --verify if=bootloader\ATmegaBOOT.hex

You must change/adapt the command to use with linux.

I'm not sure, but with the 10MHz crystal I think you can burn the bootloader, but the timing will be changed.

The led must flash very softly with parallel programmer while bootloading using both: Arduino IDE or UISP.

3

Adilson,
Thanks for your tips. The problem was in my board's design. I fixed it, and now it works. I can burn the bootloader using the parallel programmer both from the arduino software (i m using Arduino 0011 alpha) and from uisp (using the 3 commands you gave me).
thanks for your help !
Gilles

4

I have the same behaviour trying to burn the bootloader. Can you explain what was the board design error that you made? I also have a STK200 programmer that works with the uisp.

On a side note, what are the fuse settings for atmega168 using the same uisp commands?

5

I have the same behaviour trying to burn the bootloader. Can you explain what was the board design error that you made? I also have a STK200 programmer that works with the uisp.

I simply forgot to ground pin 8 of the ATmega8...

On a side note, what are the fuse settings for atmega168 using the same uisp commands?

According to http://www.arduino.cc/en/Hacking/Bootloader (bottom of the page), the fuse high byte should be set to 0xdd and low byte to 0xff.