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1  Using Arduino / Installation & Troubleshooting / Re: Trouble Burning the Bootloader to Arduino Uno [SOLVED] on: November 15, 2012, 04:29:13 pm
Hi crossroads

thanks for the support, by the way I have a close related issue in this thread:

could you give some feedback on that?
(actually it is for the same project!)

2  Using Arduino / Microcontrollers / Re: ATMega2560 ICSP on: November 15, 2012, 01:14:26 pm
hi crossroads

Im having a similar situation with a custom board that has an atmega2560. the ISP port is connected to a USB-SPI chip to talk to a PC without the need of drivers (like for the FTDI)
im trying to program the bootloader but this error appears:

avrdude: stk500v2_command(): command failed
avrdude: stk500v2_program_enable(): bad AVRISPmkII connection status: MOSI fail, SCK fail
avrdude: initialization failed, rc=-1
         Double check connections and try again, or use -F to override
         this check.

Im using the avrisp mkii and the custom board has all the caps and osc stuff in place.
could it be that this chip is interfering? thanks
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