Arduino as an AVR ISP

Using Arduino Microcontrollers
1

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.

2

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

yep

3

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!

4

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

5

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.

6

Luciano_Carcagno:
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

7

wanderson:
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.

8

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. :~

9

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

10

Luciano_Carcagno:
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.

11

Osgeld:
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. :wink:

12

The best advice: Whatever works is the correct option. :wink:

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.

13

Great advice! Thanks for all the tips.

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