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[on:]

Hi there!

I´ve read the tutorial explaining how to use an Arduino board to burn the bootloader onto an AVR using the Arduino IDE. I´ve also read that it is based on the mega-isp code written by someone else and had a look at it too.

So, is it possilbe to use that same sketch and AVRdude to directly program any supported microcontroller? Should I make any changes?

Any tip or help is most welcomed!

Thanks.

[Reply #1 on:]

So, is it possilbe to use that same sketch and AVRdude to directly program any supported microcontroller?

yep

[Reply #2 on:]

Thanks for the straightforward answer!

As far as I´ve read it also supports burning fuses, lock bits, etc...

Would this be OK?

avrdude -p m328p -P comX -c avrisp -b 19200 -U flash:w:file.hex -U lock:w:0xFF:m

m328p : ATmega328p micro
comX: my com port
file.hex: my program
-U lock:w:0xFF:m -> for the lock bits ( all unprogrammed )

Thanks!

[Reply #3 on:]

should be fine as long as you have your fuses correct, but yea thats pretty much it for avrdude

[Reply #4 on:]

I would recommend that you add two (-v -v) verbose output specifiers to the avrdude command line, at least while testing.  It adds very useful output that can help diagnose problems.

[Reply #5 on:]

Would this be OK?

avrdude -p m328p -P comX -c avrisp -b 19200 -U flash:w:file.hex -U lock:w:0xFF:m

Almost...

avrdude -p m328p -P comX -c stk500 -b 19200 -U flash:w:file.hex -U lock:w:0xFF:m

- OR -

avrdude -p m328p -P comX -c arduino -b 19200 -U flash:w:file.hex -U lock:w:0xFF:m

[Reply #6 on:]

I would recommend that you add two (-v -v) verbose output specifiers to the avrdude command line, at least while testing.  It adds very useful output that can help diagnose problems.

Thanks! I´ll take a look at that.

[Reply #7 on:]

Would this be OK?

avrdude -p m328p -P comX -c avrisp -b 19200 -U flash:w:file.hex -U lock:w:0xFF:m

Almost...

avrdude -p m328p -P comX -c stk500 -b 19200 -U flash:w:file.hex -U lock:w:0xFF:m

- OR -

avrdude -p m328p -P comX -c arduino -b 19200 -U flash:w:file.hex -U lock:w:0xFF:m

I got a bit confused with this. I thought that the idea of using an Arduino board with the ArduinoISP example was to work as AVRISP. 

[Reply #8 on:]

I use avrisp as the programming option all the time, works for me, including in your core files CB

[Reply #9 on:]

I got a bit confused with this. I thought that the idea of using an Arduino board with the ArduinoISP example was to work as AVRISP. 

...a programmer.  "AVRISP" is a specific kind of programmer.  It is also a protocol.  The -c option tells avrdude which protocol to use.  For an Arduino running the ArduinoISP sketch, the correct protocol is stk500 or arduino.

[Reply #10 on:]

I use avrisp as the programming option all the time, works for me, including in your core files CB

I've had problems using avrisp as the protocol.  Unfortunately, I can't remember the details.

The best advice: Whatever works is the correct option.   

[Reply #11 on:]

The best advice: Whatever works is the correct option.  

Agreed, cause STK500 is just an error generator for me, have yet to get it to do anything though an arduino as an ISP, I dont remember what arduino did, its been awhile.

[Reply #12 on:]

I use avrisp as the programming option all the time, works for me, including in your core files CB

I've had problems using avrisp as the protocol.  Unfortunately, I can't remember the details.

The best advice: Whatever works is the correct option.   

Great advice! Thanks for all the tips.