sim: Parameterize chdr_word_t data type

This replaces chdr_word_t, which was a statically defined 64-bit data
type, with a paramaterizable data type that matches the defined CHDR_W.
Code that formerly referenced the chdr_word_t data type can now define
the data type for their desired CHDR_W and ITEM_W as follows:

  // Define the CHDR word and item/sample data types
  typedef ChdrData #(CHDR_W, ITEM_W)::chdr_word_t chdr_word_t;
  typedef ChdrData #(CHDR_W, ITEM_W)::item_t      item_t;

ITEM_W is optional when defining chdr_word_t if items are not
needed. Static methods in the ChdrData class also provide the ability to
convert between CHDR words and data items. For example:

  // Convert CHDR data buffer to a buffer of samples
  samples = ChdrData#(CHDR_W, ITEM_W)::chdr_to_item(data);

1 files changed, 2 insertions, 0 deletions

diff --git a/fpga/usrp3/lib/rfnoc/sim/chdr_stream_endpoint_tb/chdr_stream_endpoint_tb.sv b/fpga/usrp3/lib/rfnoc/sim/chdr_stream_endpoint_tb/chdr_stream_endpoint_tb.sv
index 0626ee447..34bf10707 100644
--- a/fpga/usrp3/lib/rfnoc/sim/chdr_stream_endpoint_tb/chdr_stream_endpoint_tb.sv
+++ b/fpga/usrp3/lib/rfnoc/sim/chdr_stream_endpoint_tb/chdr_stream_endpoint_tb.sv
@@ -45,6 +45,8 @@ module chdr_stream_endpoint_tb;
   localparam [9:0]  PORT_A   = 10'd1;
   localparam [9:0]  PORT_B   = 10'd2;
 
+  typedef ChdrData #(CHDR_W)::chdr_word_t chdr_word_t;
+
   // ----------------------------------------
   // DUT (and Crossbar) Instantiations
   // ----------------------------------------