changelog

FM收音机的解码及控制器VHDL语言实现

[20050103] Clean up all do file
[20041227] First time working
[20041221] Fix adder and multiply function
[20041218] Remove clock signal acros adder component
	   - Reorganize phase detector
[20041223] Clean up all comment
[20041227] Fix conversion between signed to unsigned by 
	   - shifting 4 bit left
	   - Finished first level of FM Demodulator
[20041228] Adder header in each design file.
	   - rename project directory into fm_receiver