Post your code as it is now, I'm sceptical about the = / == thing 
I'll leave you to the learning process - find some other 7-segment driver code and read it - and find out how it all works, it will be a very useful exercise.
Post your code as it is now, I'm sceptical about the = / == thing
I'll leave you to the learning process - find some other 7-segment driver code and read it - and find out how it all works, it will be a very useful exercise.