From 4ea52ca04edf6340a5c53bcc1c5410456b3db7b8 Mon Sep 17 00:00:00 2001
From: xingchen <1098756313@qq.com>
Date: Fri, 25 Sep 2026 11:57:24 +0800
Subject: [PATCH] feat: add rtl/watchdog_supervisor.v

---
 rtl/watchdog_supervisor.v | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 rtl/watchdog_supervisor.v

diff --git a/rtl/watchdog_supervisor.v b/rtl/watchdog_supervisor.v
new file mode 100644
index 0000000..308ce30
--- /dev/null
+++ b/rtl/watchdog_supervisor.v
@@ -0,0 +1,13 @@
+module watchdog_supervisor #(
+    parameter WIDTH = 16,
+    parameter LIMIT = 1000
+) (
+    input wire clk, input wire rst_n, input wire heartbeat_async,
+    input wire acknowledge, output wire alarm,
+    output wire [WIDTH-1:0] elapsed
+);
+  wire heartbeat_rise, timeout;
+  heartbeat_sync sync_unit(clk, rst_n, heartbeat_async, heartbeat_rise);
+  timeout_counter #(WIDTH, LIMIT) timer_unit(clk, rst_n, heartbeat_rise, timeout, elapsed);
+  alarm_latch alarm_unit(clk, rst_n, timeout, heartbeat_rise, acknowledge, alarm);
+endmodule