I want my board to be supplied from USB through PC,I want:
And I prefer if there is some IC that can enumerate for me, is it possible? Or is there any specific pin configuration that will Identify to host that my board need lot's of current (1.5A)?
(If there is no low cost IC able to doing this form me. Then can you give me reference to do it through MCU, if this is not too hard.)
ADI offers several USB Power Manager solutions and papers that may be used as reference. It is recommended that you contact local sales team who can guide on what you are trying to achieve.