well i have 3 microcontrollers with 3 different problems
atmega644pa-pu
i use arduino as isp, that work with other cips; schematics are uploaded below
mi question witch one is ded ??
1 .
i can burn any boatloader - ok (tried more )
i have a led on D0 in the bootloader must blink and it does - ok
no errors
================ problem
when i upload a sketch that makes all pins to blink ... alll are dead
any sketch that i upload does not work
burn bootloader
avrdude: verifying ...
avrdude: verification error, first mismatch at byte 0x0000
0xff != 0xfd
avrdude: verification error; content mismatch
upload sketch
avrdude: verifying ...
avrdude: verification error, first mismatch at byte 0x004a
0xb9 != 0x79
avrdude: verification error; content mismatch
avrdude: Send: Q [51] [20]
burn bootloader
avrdude: Device signature = 0x000000
avrdude: Yikes! Invalid device signature.
Double check connections and try again, or use -F to override
this check.
upload sketch
avrdude: Device signature = 0x000000
avrdude: Yikes! Invalid device signature.
Double check connections and try again, or use -F to override
this check.
the connections are fine because i have other cip and everything work just fine
is not on breadboard ... everything is fixed no lose wires
can i unbrik one of them ?
