fixed bug in tt tx state machine not asserting interrupt

2026-04-26 03:56:58 +00:00 · 2010-10-23 23:24:52 +00:00
parent 3d425fe732
commit 0622c1c3a8
12 changed files with 304 additions and 115 deletions
--- a/rtl/uart.v
+++ b/rtl/uart.v
@@ -243,6 +243,7 @@ module uart(clk, reset,
 		 4'd7: $display("tx: %b", tx_reg[6]);
 		 4'd8: $display("tx: %b", tx_reg[7]);
 		 4'd9: $display("tx: done");
+		 default: ;
 	       endcase
 `endif
 	       
@@ -261,6 +262,7 @@ module uart(clk, reset,
 		    tx_cnt <= 0;
 		    tx_empty <= 1;
 		 end
+		 default: ;
 	       endcase
 	    end