From 5f396d028c6da87223d60079cbad4d1e3fc2d14f Mon Sep 17 00:00:00 2001
From: Julian Blake Kongslie
Date: Sun, 20 Feb 2022 15:26:43 -0800
Subject: Correctly reset command parser state after sending commands or
 invalid input.

---
 hdl/command_parser.sv | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'hdl')

diff --git a/hdl/command_parser.sv b/hdl/command_parser.sv
index 92abced..d15d72d 100644
--- a/hdl/command_parser.sv
+++ b/hdl/command_parser.sv
@@ -40,7 +40,12 @@ module command_parser
             state = state.first;
         end else begin
             if (echo_ready) echo_valid = 0;
-            if (command_ready) command_valid = 0;
+            if (command_ready && command_valid) begin
+                command_valid = 0;
+                command_address = 0;
+                command_write = 0;
+                command_data = 0;
+            end
             if (uart_ready && uart_valid) begin
                 echo_valid = 1;
                 echo_data = uart_data;
@@ -69,6 +74,10 @@ module command_parser
                         command_write = 1;
                         command_data = 0;
                         state = READ_DATA_1;
+                    end else begin
+                        command_address = 0;
+                        command_write = 0;
+                        command_data = 0;
                     end
                 end
 
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