From 61dddae2e0ce2e28e8518c6513e9897d65c25766 Mon Sep 17 00:00:00 2001
From: cfif <cham-zod@mail.ru>
Date: Mon, 2 Jun 2025 13:26:41 +0300
Subject: [PATCH] Init

---
 modular.json | 10 ++++++++++
 wdt_timer.c  | 36 ++++++++++++++++++++++++++++++++++++
 wdt_timer.h  | 12 ++++++++++++
 3 files changed, 58 insertions(+)
 create mode 100644 modular.json
 create mode 100644 wdt_timer.c
 create mode 100644 wdt_timer.h

diff --git a/modular.json b/modular.json
new file mode 100644
index 0000000..0dd1901
--- /dev/null
+++ b/modular.json
@@ -0,0 +1,10 @@
+{
+  "cmake": {
+    "inc_dirs": [
+      "./"
+    ],
+    "srcs": [
+      "./**.c"
+    ]
+  }
+}
\ No newline at end of file
diff --git a/wdt_timer.c b/wdt_timer.c
new file mode 100644
index 0000000..ac43ccd
--- /dev/null
+++ b/wdt_timer.c
@@ -0,0 +1,36 @@
+//
+// Created by cfif on 24.02.2025.
+//
+#include "at32f435_437.h"
+#include "wdt_timer.h"
+#include "SystemDelayInterface.h"
+
+void Wdt_Start() {
+
+    if (crm_flag_get(CRM_WDT_RESET_FLAG) != RESET) {
+        // reset from wdt
+        crm_flag_clear(CRM_WDT_RESET_FLAG);
+    }
+
+    // disable register write protection
+    wdt_register_write_enable(TRUE);
+
+    // set the wdt divider value
+    wdt_divider_set(WDT_CLK_DIV_4);
+
+    /* set reload value
+
+     timeout = reload_value * (divider / lick_freq )    (s)
+
+     lick_freq     = 40000 Hz
+     divider      = 4
+     reload_value = 3000
+
+     timeout = 3000 * (4 / 40000 ) = 0.3s = 300ms
+    */
+    wdt_reload_value_set(3000 - 1);
+
+    // enable wdt
+    wdt_enable();
+}
+
diff --git a/wdt_timer.h b/wdt_timer.h
new file mode 100644
index 0000000..7c61aed
--- /dev/null
+++ b/wdt_timer.h
@@ -0,0 +1,12 @@
+//
+// Created by cfif on 24.02.2025.
+//
+
+#ifndef SMART_COMPONENTS_V2_WDT_TIMER_H
+#define SMART_COMPONENTS_V2_WDT_TIMER_H
+
+#include "CmsisRtosThreadUtils.h"
+
+void Wdt_Start();
+
+#endif //SMART_COMPONENTS_V2_WDT_TIMER_H