yes it is (there is only the bootloader so at the right clock speed the LED flashes twice per second
The clock input from the Mega has been disconnected, when running off the breadboard power supply?
yes it is disconnected
ok adding the caps fixed it not running when connected to the mega but it still runs on the 16Mhz crystal when in the uno
If you set the fuses on an ATmega MCU to run on the internal 8 MHz oscillator, it runs on that oscillator.
Something else seems to be confusing you now.
so now it is running at 8Mhz even in the uno.
maybe the chip has a memory problem and it is sometimes returning wrong values for the fuses because sometimes it returns a device id of an ATmega3090, sometimes a random id that corresponds to nothing and i get some data mismatches when avrdude is verifying that a program has been corectly uploaded at adress 0x007E. (always this exact adress.)
Ok, so what initially damaged the 16u2?
idk it just stopped working (no it is not the cable as i use the same cable for the mega and it works fine)
Any possibility the 16u2 still works, but the atmega328 was damaged?
i dont think so because the uno isnt detected by windows
or maybe the broken 16u2 damaged the 328 but how could this be possible
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.