Hi Waqar,

A couple of suggestions. First, you need to be specific about the chips used, including their package type. A given pin number on a PDIP will not necessarily map one-to-one to its corresponding pin on a TQFP.

Second, rather than describing what's connected to what (and a little ambiguously at that) why don't you draw a schematic. Even something drawn with MSPAINT might be clearer. Previous posts have described the process of including pictures in your post.

Maybe once you have a schematic drawn, it will be more obvious what the circuit is doing.

Dennis