Waqar,

It is pretty unrealistic to try and find tutorials/app notes for connecting one microcontroller (out of thousands!) to one SSI or MSI chip. The answer is right in front of you - the datasheet.

Here is my strategy for designing something new: work from the KNOWN towards the UNKNOWN. You have jumped head-first into the unkown, trying to build a device using standards that you didn't know, using a microcontroller you barely know, and using analog & digital electronics that you don't know. That is a recipe for disaster.

Try this (and this is what I have done in the past): Read the datasheet. Understand it. I read datasheets at least several times before I use a device. Then, do a test run on your new device IN A PROVEN CIRCUIT. Maybe that consists of a MCU development board. Maybe it is debounced switches and LED's on a protoboard (perhaps a useful approach for a shift register). Then, drop it into your end system and test it again.

Once a single part is shown to work, then move on to another part. Sure the learning curve is steep, but that is design! You will understand the concepts and won't have to do it that way the next time you want to use a particular part.

I suspect this approach will help you to understand the components in your circuit and then use them properly. You gain very little by executing a project without rigorously analyzing and testing your design.

my $0.02

- Lee Cross