Melzi v2 with Arduino Uno

Hello everyone,

I try the ISP connection mode with Arduino Uno equipped with ATmega328P

The PDF file is the procedure that I have made in collecting information.
--> you can find the ISP.PDF here (at the bottom of the page)

Since the second test with "Sanguino / w ATMega1284p 8Mhz" (

  Arduino TX and RX LEDs flash), the screen displays imp

Simple square (cursor-type MSDOS) then Melzi LED does light at all; reset changes nothing.

I have blown the EEPROM?

what solution according to you, please.

thank you for your time

Well, I don't speak french so the link is of no use to me.
I assume you tried to flash it, for that you need the right board selected in the IDE and a bootloader on the UNO.

8Mhz are you sure that right?

Most arduino based reprap boards are 16mz, the odd one is 20mhz

The melz is definitely 16mhz...

If you upload a firmware compiled for 8mh onto a 16mhz mpu all its timing for serial communication will be wrong

Try again with a 16mhz board selected.