VHDL to block diagram help please

[ZeroCool666]

Hi for the first time,
I have a register that outputs 4 bits, I need to use those 4 bits as an address for a ROM memory implemented in VHDL, the project has to be done as a block diagram in Active-HDL. My problem is that I can't convert the 4 bits in an integer to use as the address. Can you please tell me a precise method to do this as I am pressed by time and can't do anymore research. I have searched the forum but didn't find what i was looking for. Thank you in advance. Good night.

 

[vipinlal]

You can use the following function to convert std_logic_vector to integer.

signal a : std_logic_vector(3 downto 0);
signal b : integer:=0;

b <= conv_integer(a);

Now you can use this integer to access the memory.

--vipin
https://vhdlguru.blogspot.com/[/code]