Arduino as AVRISP Alternative

Hallo everyone,

I am study electronics and at my school we have a lesson about AVR Assembly programming using AVR Studio.
Considering that I already have a couple of arduino unos would it be possible to use one of them as an AVRISP Programmer to upload my AVR Studio projects to the other using either megaisp or programmer2?

Thanx :slight_smile:

Yes, MegaISP (a.k.a. Examples->ArduinoISP) will act like an older AVR ISP (uses stk500v1 protocol). In programmers.txt the only difference between "AVR ISP" and "Arduino as ISP" is that the Arduino uses speed=19200 and AVR doesn't specify (9600?).

Be sure to disable the auto-reset on the Arduino running ArduinoISP. Connect a 110 ohm resistor from Reset to +5V or a 1 or 2 mfd capacitor from Reset (+) to Ground (-). If you don't the ISP Arduino will reset and try to download the program as a new sketch.

Ok thnx will try it. :slight_smile: