Thanks FvM for your reply,
One more thing I wanted to ask here,
I am interfacing stm32f405 micro-controller to enable the LTC4020 IC, at the same time I am measuring the input voltage and current & Battery voltage and current through the microcontroller by using Op-amps then sending all the data serially.
When LTC4020 configured for 3 cell battery & input is also equal, I am getting all the data in serial port properly, and battery also charging
When input is above the battery(3 cell), the LTC4020 is stepping down the voltage also battery is charging, but microcontroller is giving junk data serially.
Can any one help me, where is the problem??
Thanks in advance
Mani