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1  Forum 2005-2010 (read only) / Troubleshooting / upload problem for arduino mega on: April 13, 2010, 01:00:16 pm
My board is arduino mega 1280, I use arduino_0018 to burn the bootloader and upload sketch. After I burn the bootloader with usbtinyisp programmer, the bootloader seems working, the L led flashes. Then I upload a sketch to the mega board, the problem is upload done successfully for only the first time. When I upload again, it always fails, the error information is:
avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51
I am sure I select the right board and right serial port in Tools menu, could anyone help me with some suggestions? Very thanks!
2  Forum 2005-2010 (read only) / Development / Re: Arduino Mega with ATmega2560 on: August 15, 2010, 09:13:08 am

Hi, Mark, have you got any result on stk500 v2 bootloader for the 2560?
Thanks a lot for your time.
3  Forum 2005-2010 (read only) / Uno Punto Zero / Any plan to replace ATMEGA8u2 with ATMEGA16/32u2 on: October 11, 2010, 10:14:30 am
I've seen the arduino uno, it is really a wonderful art. One improvement is using ATMEGA8U2 instead of FT232. As ATMEGA8U2 is pin compatible with ATMEGA16/32U2, is there any plan to update the 8u2 to 16/32u2, because the bom will be almost same, while the internal flash size will be double or tripple.
Thanks a lot for your time!
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