Round up default KEEP_WIDTH settings when DATA_WIDTH is not a multiple of 8

Author: alexforencich

README.md

@@ -205,7 +205,7 @@ Parametrizable priority encoder.
 
     DATA_WIDTH           : width of tdata signal
     KEEP_ENABLE          : enable tkeep signal (default DATA_WIDTH>8)
-    KEEP_WIDTH           : width of tkeep signal (default DATA_WIDTH/8)
+    KEEP_WIDTH           : width of tkeep signal (default (DATA_WIDTH+7)/8)
     LAST_ENABLE          : enable tlast signal
     ID_ENABLE            : enable tid signal
     ID_WIDTH             : width of tid signal

rtl/axis_adapter.v

@@ -39,14 +39,14 @@ module axis_adapter #
     // If disabled, tkeep assumed to be 1'b1
     parameter S_KEEP_ENABLE = (S_DATA_WIDTH>8),
     // tkeep signal width (words per cycle) on input interface
-    parameter S_KEEP_WIDTH = (S_DATA_WIDTH/8),
+    parameter S_KEEP_WIDTH = ((S_DATA_WIDTH+7)/8),
     // Width of output AXI stream interface in bits
     parameter M_DATA_WIDTH = 8,
     // Propagate tkeep signal on output interface
     // If disabled, tkeep assumed to be 1'b1
     parameter M_KEEP_ENABLE = (M_DATA_WIDTH>8),
     // tkeep signal width (words per cycle) on output interface
-    parameter M_KEEP_WIDTH = (M_DATA_WIDTH/8),
+    parameter M_KEEP_WIDTH = ((M_DATA_WIDTH+7)/8),
     // Propagate tid signal
     parameter ID_ENABLE = 0,
     // tid signal width

rtl/axis_arb_mux.v

@@ -40,7 +40,7 @@ module axis_arb_mux #
     // Propagate tkeep signal
     parameter KEEP_ENABLE = (DATA_WIDTH>8),
     // tkeep signal width (words per cycle)
-    parameter KEEP_WIDTH = (DATA_WIDTH/8),
+    parameter KEEP_WIDTH = ((DATA_WIDTH+7)/8),
     // Propagate tid signal
     parameter ID_ENABLE = 0,
     // input tid signal width

rtl/axis_arb_mux_wrap.py

@@ -75,7 +75,7 @@ def generate(ports=4, name=None, output=None):
     // Propagate tkeep signal
     parameter KEEP_ENABLE = (DATA_WIDTH>8),
     // tkeep signal width (words per cycle)
-    parameter KEEP_WIDTH = (DATA_WIDTH/8),
+    parameter KEEP_WIDTH = ((DATA_WIDTH+7)/8),
     // Propagate tid signal
     parameter ID_ENABLE = 0,
     // input tid signal width

rtl/axis_async_fifo.v

@@ -43,7 +43,7 @@ module axis_async_fifo #
     // If disabled, tkeep assumed to be 1'b1
     parameter KEEP_ENABLE = (DATA_WIDTH>8),
     // tkeep signal width (words per cycle)
-    parameter KEEP_WIDTH = (DATA_WIDTH/8),
+    parameter KEEP_WIDTH = ((DATA_WIDTH+7)/8),
     // Propagate tlast signal
     parameter LAST_ENABLE = 1,
     // Propagate tid signal

rtl/axis_async_fifo_adapter.v

@@ -43,14 +43,14 @@ module axis_async_fifo_adapter #
     // If disabled, tkeep assumed to be 1'b1
     parameter S_KEEP_ENABLE = (S_DATA_WIDTH>8),
     // tkeep signal width (words per cycle) on input interface
-    parameter S_KEEP_WIDTH = (S_DATA_WIDTH/8),
+    parameter S_KEEP_WIDTH = ((S_DATA_WIDTH+7)/8),
     // Width of output AXI stream interface in bits
     parameter M_DATA_WIDTH = 8,
     // Propagate tkeep signal on output interface
     // If disabled, tkeep assumed to be 1'b1
     parameter M_KEEP_ENABLE = (M_DATA_WIDTH>8),
     // tkeep signal width (words per cycle) on output interface
-    parameter M_KEEP_WIDTH = (M_DATA_WIDTH/8),
+    parameter M_KEEP_WIDTH = ((M_DATA_WIDTH+7)/8),
     // Propagate tid signal
     parameter ID_ENABLE = 0,
     // tid signal width

rtl/axis_broadcast.v

@@ -40,7 +40,7 @@ module axis_broadcast #
     // Propagate tkeep signal
     parameter KEEP_ENABLE = (DATA_WIDTH>8),
     // tkeep signal width (words per cycle)
-    parameter KEEP_WIDTH = (DATA_WIDTH/8),
+    parameter KEEP_WIDTH = ((DATA_WIDTH+7)/8),
     // Propagate tlast signal
     parameter LAST_ENABLE = 1,
     // Propagate tid signal

rtl/axis_broadcast_wrap.py

@@ -75,7 +75,7 @@ def generate(ports=4, name=None, output=None):
     // Propagate tkeep signal
     parameter KEEP_ENABLE = (DATA_WIDTH>8),
     // tkeep signal width (words per cycle)
-    parameter KEEP_WIDTH = (DATA_WIDTH/8),
+    parameter KEEP_WIDTH = ((DATA_WIDTH+7)/8),
     // Propagate tlast signal
     parameter LAST_ENABLE = 1,
     // Propagate tid signal

rtl/axis_crosspoint.v

@@ -42,7 +42,7 @@ module axis_crosspoint #
     // Propagate tkeep signal
     parameter KEEP_ENABLE = (DATA_WIDTH>8),
     // tkeep signal width (words per cycle)
-    parameter KEEP_WIDTH = (DATA_WIDTH/8),
+    parameter KEEP_WIDTH = ((DATA_WIDTH+7)/8),
     // Propagate tlast signal
     parameter LAST_ENABLE = 1,
     // Propagate tid signal

rtl/axis_crosspoint_wrap.py

@@ -81,7 +81,7 @@ def generate(ports=4, name=None, output=None):
     // Propagate tkeep signal
     parameter KEEP_ENABLE = (DATA_WIDTH>8),
     // tkeep signal width (words per cycle)
-    parameter KEEP_WIDTH = (DATA_WIDTH/8),
+    parameter KEEP_WIDTH = ((DATA_WIDTH+7)/8),
     // Propagate tlast signal
     parameter LAST_ENABLE = 1,
     // Propagate tid signal