how to send bulk data to host PC?.... Does any one have any idea?.... Sample code?........

 

Without a lot more information I doubt that anyone here can give you much help. We are good but not that good, nor to my knowledge is anyone on this site clairvoyant. To get sensible answers you must supply sensible information.

What do you consider to be "bulk"? In other words how much data are we actually talking about?
Is this a one off transfer or a regular occurrence? If regular then how often?
Is there a time constraint on how quickly the data must be transferred? If so then what?
What is generating the data?
Does it have any native intelligence?
Does it have any native communications interface?

 

Are you referring to the Bulk transfer used in USB protocol?

If so Microchip Forum thread on topic

 

Using two endpoints, and the Bulk Transfer protocol you implement a device with a Mass Storage profile. It is more than a bit challenging and I recommend that you purchase a USB Analyzer before you start. The most difficult part of the development is getting your device to enumerate.

My code wouldn't do you much good since it is for a Blackfin and Maxim USB controller, its not written in Visual DSP++, and I'm sure the company would be cross with me if I just gave it to you.