I have a fresh new 2560 (this is a 2560 soldered on a PCB, NOT an Arduino Mega) with the following connections (please see schematic). I tried both using 16mhz and 8mhz crystals but when running
avrdude -c usbasp -p m2560
I get “avrdude: error: programm enable: target doesn’t answer. 1. initialization failed”
So the 2560 is not responding. I tried with several -B parameters but did not work. Am I missing something obvious? What would be the best way to proceed?
I am using the USBAsp pinout from https://s-media-cache-ak0.pinimg.com/564x/b7/11/40/b71140dd1ccb8ddf94327ab74ebe46ee.jpg
- The connections seem ok since I am measuring 5V across other 5V,GRD pins from the ATMEL 2560 (probably doesn’t prove too much anyway)
** I tried this USBasp some time ago with an Arduino Mega (full board) and was working well. Haven’t tried it for some time - I think its safe to assume that the USBasp is doing well.