From 6e02336069438c32708924d0517d5ff115a9b0e3 Mon Sep 17 00:00:00 2001
From: Theodor Stana <t.stana@cern.ch>
Date: Sun, 8 Dec 2013 20:53:45 +0100
Subject: [PATCH] Fixed the FSM watchdog max value bug
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Signed-off-by: Theodor Stana <t.stana@cern.ch>
Signed-off-by: Tomasz WÅ‚ostowski <tomasz.wlostowski@cern.ch>
---
modules/common/gc_fsm_watchdog.vhd | 4 ++--
sim/gc_fsm_watchdog/tb_gc_fsm_watchdog.vhd | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/modules/common/gc_fsm_watchdog.vhd b/modules/common/gc_fsm_watchdog.vhd
index 9c1b2c3d..9d57d80d 100644
--- a/modules/common/gc_fsm_watchdog.vhd
+++ b/modules/common/gc_fsm_watchdog.vhd
@@ -66,7 +66,7 @@ architecture behav of gc_fsm_watchdog is
--============================================================================
-- Signal declarations
--============================================================================
- signal wdt : unsigned(f_log2_size(g_wdt_max)-1 downto 0);
+ signal wdt : unsigned(f_log2_size(g_wdt_max)-1 downto 0);
--==============================================================================
-- architecture begin
@@ -84,7 +84,7 @@ begin
fsm_rst_o <= '0';
else
wdt <= wdt + 1;
- if (wdt = g_wdt_max) then
+ if (wdt = g_wdt_max-1) then
fsm_rst_o <= '1';
end if;
end if;
diff --git a/sim/gc_fsm_watchdog/tb_gc_fsm_watchdog.vhd b/sim/gc_fsm_watchdog/tb_gc_fsm_watchdog.vhd
index 0e50d1c8..aef83722 100644
--- a/sim/gc_fsm_watchdog/tb_gc_fsm_watchdog.vhd
+++ b/sim/gc_fsm_watchdog/tb_gc_fsm_watchdog.vhd
@@ -61,7 +61,7 @@ architecture behav of tb_gc_fsm_watchdog is
constant c_clk_per : time := 50 ns;
constant c_reset_width : time := 112 ns;
- constant c_fsm_time : positive := 32767;
+ constant c_fsm_time : positive := 32766;
--============================================================================
-- Signal declarations
@@ -105,7 +105,7 @@ begin
DUT : gc_fsm_watchdog
generic map
(
- g_wdt_max => 65536
+ g_wdt_max => 32768
)
port map
(
--
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