Hi uacmsir.
Go this web site [http://www.njqrp.org/hc908/resource.html]and brouse to your hearts content. You will find all sorts of good routines and programs, all in HC908 assembly and well commented. The programs [HCMON] and [VFO]have all sorts of goodies in them. Thease programs are used for "HAM" radio purposes but the code is sound (it works). If thats not good enough, I have another site with alot more code.
Regards, Bob