ATMEGA328PU on Arduino uno is not working

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1

Hello,
Im using Arduino uno R3 board for bootloading "Atmega328P U".
on the last bought chips I can't do it.
Led 'L' is ON all time and reset have no afect to blikning.
On some Atmega328PU LED 'L' is blinking on some - not and then I can't burn bootloader.

What I do wrong?

Thanks

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2

Anyone's guess. For help, please post useful information about what you are doing, error messages, etc.

For guidance, spend some time studying the "How to get the best out of this forum" post.

3

What is your setup for burning the bootloader? We cannot see how that ZIF socket is wired (if it is just plugged into the socket for the original atmega328 on the UNO, then there is no way you can burn the bootloader using the USB connection).

4

Thanks David,
yes, ZIF socket is just plugged in Arduino UNO....
I will wired it following manuals and try.

Confusing me is why LED 'L' on arduino board blinks only with some chips.

5

Those chips probably already have the bootloader installed, and have been programmed with the blink sketch.

6

You right David!
Thanks!