I have a broken Arduino Uno. The man tells that he connected power supply and USB at the same time.
I got the new 16u2 (empty) chip. then asked my friend to re-solder it. He was using an air soldering station, but that did not work out. Then I try do that by myself. After 6 or 8 time I was successful. I think.
With stk500v2 programmer thru ICSP I burned in the hardware called:
which I found in Arduino "hardware" folder.
I then burned bootloader to 328p controller:
That hardware also from Arduino folder.
The problem is that I can upload sketch
error: avrdude: stk500_getsync(): not in sync: resp=0x00
meaning that device not recognizing.
My PC founds Arduino in device manager. 328p with ICSP programmable and working. (checked with blinking.hex 13 pin)
When pressing reset button the 13 led turns of then blinks fast several times that means the boot loader installed property.
Right after pressing upload the Rx blinks 3 times after that I am getting error.
Strange isn't it?
So what I what to know:
I suppose the first must start blinking Tx led?
Can anyone show me how must look like rxd txd interrupts?
So about my assumption that I overheated 16u2 and it does strange things. What are you thinking about that?