I'm not entirely sure what you're looking for here. Why technology specifically and not tactics, strategy, organization, et al? Technology doesn't exist in a vacuum, after all. But I'll include a few books on medieval warfare in general that I hope might be helpful.

https://books.google.com/books?id=lvWNAgAAQBAJ&printsec=frontcover&dq=john+france&hl=en&sa=X&ved=0ahUKEwiR-Y3Z-L7OAhUBYCYKHT0CCtUQ6AEIIjAB#v=onepage&q=john%20france&f=false

https://books.google.com/books?id=adoAAAAACAAJ&dq=medieval+warfare+sourcebook&hl=en&sa=X&ved=0ahUKEwiEtsfO-L7OAhWM7CYKHVBqBEQQ6AEIHzAA

https://books.google.com/books?id=Sqtj4rioa9UC&printsec=frontcover&dq=medieval+warfare&hl=en&sa=X&ved=0ahUKEwjn7frH-L7OAhWFKyYKHdnPCbsQ6AEIHDAA#v=onepage&q&f=false