Configure Argument as Memory Interface

Syntax

#pragma HLS interface argument(<arg_name>) type(memory) num_elements(<int>)

Description

This pragma specifies the memory interface type for an array/struct argument. The array size can be specified or overridden (over the declared size in C++) by specifying the num_elements option. More details in Top-Level RTL Interface section.

Parameters

Parameter	Type	Optional	Default	Description
argument	String	No		Argument name
type	memory	No		Interface type
num_elements	Integer	Yes		Specifies the number of elements of the argument array. Can override the array size in the argument.

Position

At the beginning of the function definition block.

Examples

int fun(int a[], int b[]) {
#pragma HLS interface argument(a) type(memory) num_elements(100)
#pragma HLS interface argument(b) type(memory)
  ...
}

---