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ATmega2560 Will Not Enter Power Down Mode
I have a project with an ATmega2560 MCU that refuses to enter power down mode.  It should be a fairly straightforward process.  I am using Timer-4 to generate a 1 second...
Tuesday, 3 April 2018 - 21:25
ATmega2560 ADC Low End Errors
I have an ATmega2560 in a project that involves reading a 0-5VDC signal for a count between 0-1023.  Straightforward.  I am using +5 AVCC (properly filtered) as the...
Friday, 16 February 2018 - 17:30
Rip The Band-aid Off (JTAG disconnect 2560)
OK, this is gonna hurt because I think I already know the answer. . .   When using JTAG on an ATMEGA2560, if you program all of Port-F (JTAG port) pins to all inputs, does it...
Wednesday, 4 October 2017 - 22:14
More Interrupt Madness
I have designed a test box utilizing an ATMEGA2560 with several 4-digit 7-segment displays, 2 encoders, switches, etc.  I have the display scanning and updating routines and...
Friday, 29 September 2017 - 16:16