From Arduino Duemilanove to a uC on a breadboard

Hi! Im new on this forum.
I've problem to migrate from Arduino Duemilanove to a stand alone atmega328.

I followed all step explain here:

so i burned the bootloader (step succesfully made) of atmega stand alone and then tried to upload "blink" sketch to the atmega328 on the breadboard.
First upload of sketch was successfully and i had led blinking, but then i try to upload the same sketch with different blink frequency i had this error:

avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51

Itried more time but i get the same error!
Any suggestions?

Thanks a lot, Flavio

Solved :slight_smile:

Can you explain how did you resolve it?