Mega2560 not responding to programmer

nwrightson
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Mega2560 not responding to programmer

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Posted: 29.01.2016 - 22:58  ·  #1
Hi,

I have a Mega2560 that will not respond to the programmer either via ISP or JTAG.
I did program it once and I think I must have set a fuse somewhere. Oops.

Any ideas on how to establish communications again?

Kind regards,
Neil.
miparo
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Re: Mega2560 not responding to programmer

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Posted: 30.01.2016 - 13:30  ·  #2
Hi nwrightson,
no change. Only 19 Pin high voltages parallel programming mode can restore it.

miparo
rh
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Re: Mega2560 not responding to programmer

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Posted: 30.01.2016 - 17:14  ·  #3
Hello Neil,

I always use:
Code
define_fuses
  Override_Fuses;
  ..........

If the fuses are correct defined there will no accidental change in the fuses.
Use XMegas! They never can be bricked!

rolf
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