Thanks in advance...
Initially we used atmega328p-PU for development board in our project. Due to space concerns we have tried implementing the same with SMD chip which is atmega328P-AU.
Since it does not have bootloader by default, we followed instructions as mentioned in the link : Burn bootloader ATmega328-AU SMD
Bootloader got burnt successfully and firmware also uploaded. Blink was working fine(with interval of 100ms we tested).
But while we upload our project firmware in the same chip not working consistently. Serial monitor is not printing the values we expected at times.
Could someone help us on this???