i need to declared the values that the counter is to take in a 2D array. Also, how do i select elements from the array and use them (say assign them to another variable) how do i declare the elements of this 2D array ?
type lutable is array (0 to 4, 0 to 63) of integer range 0 to 4000; in a 2D array e.g.:
type lutable is array (0 to 4, 0 to 2) of integer range 0 to 4000; signal sample_array: lutable; you can assign elements to another signal as follows:
out_signal<=sample_array(in_a, in_b); the contents of the array can be declared e.g. as defaults (caution, this is not supported by all synthesis-tools!):
signal sample_array: lutable:=( (1000, 2000, 3000), (4000, 3000, 2000), (100, 200, 300), (1,2,3), (5,6,7)); or over a constant-array, e.g.:
signal sample_array: lutable; constant sample_array_init: lutable:=( (1000, 2000, 3000), (4000, 3000, 2000), (100, 200, 300), (1,2,3), (5,6,7)); ... sample_array<=sample_array_init; ... or, of course, element by element:
sample_array(1,1)<=1000; ... 
