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Author Topic: Could you burn a bootloader to a atmega 2560 with this?  (Read 246 times)
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Sam97
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« on: December 18, 2012, 06:00:11 pm »
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http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_2157790_-1
And if not could someone give to a link to a tool that can burn a bootloader to atmega 2560?
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Osgeld
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« Reply #1 on: December 18, 2012, 07:40:54 pm »
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yes, but its a little expensive
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Nick Gammon
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« Reply #2 on: December 18, 2012, 08:07:34 pm »
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Does that definitely handle the +64Kb memory boundary?
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retrolefty
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« Reply #3 on: December 18, 2012, 11:12:12 pm »
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Quote from: Nick Gammon on December 18, 2012, 08:07:34 pm
Does that definitely handle the +64Kb memory boundary?

As they name the product "USBtinyISP" I suspect it suffers the same +64KW (not bytes) limitation that adafruit's USBtiny programmer does. However that is just logical speculation on my part.

Lefty
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Nick Gammon
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« Reply #4 on: December 18, 2012, 11:17:57 pm »
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I stand corrected. The limitation is at 128 Kb which of course affects the Atmega2560. This is because you program the flash in words, and at the boundary of 64 K words (128 Kb) the extra instruction "load extended address byte" needs to be sent to the processor.
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