Hi, I have developed Arduino Board using ATMEGA328-PU and bootloaded it with Optiboot using USB programmer. I connected my arduino board using MAX323 serial connection. When i connect my board to my PC and try uploading blink sketch. I get below error :: avrdude: stk500_getsync(): not in sync: res…

Arduino Breadboard with Optiboot

CrossRoads September 14, 2012, 7:52pm 2

What board type are you selecting for sketch downloads? Uno, or something else?

Have you posted similar elsewhere? Where perhaps I suggested copying the Uno section in boards.txt?

Topic		Replies	Views
optiboot 3rd Party Boards	5	1654	May 6, 2021
avrdude: stk500_getsync(): not in sync: resp=0x00 3rd Party Boards	24	9072	May 6, 2021
Arduino Clone. Cannot upload 3rd Party Boards	6	1794	May 6, 2021
arduino problem IDE 1.x	8	1813	May 5, 2021
Arduino UNO wont program "stk500_getsync(): not in sync: resp=0xb4" ...... Programming	16	8121	May 5, 2021