1 files changed, 108 insertions, 0 deletions
diff --git a/src/app/google_rcu/reset_watch_dog_timer.c b/src/app/google_rcu/reset_watch_dog_timer.c
new file mode 100644
index 0000000..ac4c07c
--- /dev/null
+++ b/src/app/google_rcu/reset_watch_dog_timer.c
@@ -0,0 +1,108 @@
+/**
+*********************************************************************************************************
+*               Copyright(c) 2020, Realtek Semiconductor Corporation. All rights reserved.
+**********************************************************************************************************
+* @file     reset_watch_dog_timer.c
+* @brief    This is the entry of user code which the watch dog module resides in.
+* @details
+* @author   barry_bian
+* @date     2020-03-10
+* @version  v1.0
+*********************************************************************************************************
+*/
+
+/*============================================================================*
+ *                              Header Files
+ *============================================================================*/
+#include "rtl876x_tim.h"
+#include "rtl876x_rcc.h"
+#include "rtl876x_nvic.h"
+#include "app_msg.h"
+#include "app_task.h"
+#include "trace.h"
+#include <app_section.h>
+
+/*============================================================================*
+ *                              Macros
+ *============================================================================*/
+#define TIMER_NUM               TIM5
+#define TIMER_IRQN              TIMER5_IRQ
+#define WDG_Timer_Handler       Timer5_Handler
+#define TIMER_PERIOD            (2*1000*1000*40-1)  //2s for 40M clock
+
+/*============================================================================*
+ *                              Functions Declaration
+ *============================================================================*/
+static void watch_dog_timer_driver_init(void);
+
+void WDG_Timer_Handler(void) DATA_RAM_FUNCTION;
+
+/*============================================================================*
+ *                              Local Functions
+ *============================================================================*/
+/******************************************************************
+ * @brief  Initialize watch dog timer.
+ * @param  none
+ * @return none
+ * @retval void
+ */
+void watch_dog_timer_driver_init(void)
+{
+    RCC_PeriphClockCmd(APBPeriph_TIMER, APBPeriph_TIMER_CLOCK, ENABLE);
+
+    TIM_TimeBaseInitTypeDef TIM_InitStruct;
+    TIM_StructInit(&TIM_InitStruct);
+
+    TIM_InitStruct.TIM_PWM_En = PWM_DISABLE;
+    TIM_InitStruct.TIM_Period = TIMER_PERIOD ;
+    TIM_InitStruct.TIM_Mode = TIM_Mode_UserDefine;
+    TIM_TimeBaseInit(TIMER_NUM, &TIM_InitStruct);
+
+    /*  Enable TIMER IRQ  */
+    NVIC_InitTypeDef NVIC_InitStruct;
+    NVIC_InitStruct.NVIC_IRQChannel = TIMER_IRQN;
+    NVIC_InitStruct.NVIC_IRQChannelPriority = 3;
+    NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
+    NVIC_Init(&NVIC_InitStruct);
+
+    TIM_ClearINT(TIMER_NUM);
+    TIM_INTConfig(TIMER_NUM, ENABLE);
+    TIM_Cmd(TIMER_NUM, ENABLE);
+}
+
+/*============================================================================*
+ *                              Global Functions
+ *============================================================================*/
+/******************************************************************
+ * @brief  enable watch dog timer.
+ * @param  none
+ * @return none
+ * @retval void
+ */
+void reset_watch_dog_timer_enable(void)
+{
+    watch_dog_timer_driver_init();
+}
+
+/******************************************************************
+ * @brief  watch dog timer handle.
+ * @param  none
+ * @return none
+ * @retval void
+ */
+void WDG_Timer_Handler(void)
+{
+    TIM_ClearINT(TIMER_NUM);
+    TIM_Cmd(TIMER_NUM, DISABLE);
+    //send message to app task in which reset the watch dog timer
+    T_IO_MSG bee_io_msg = {0};
+    bee_io_msg.type = IO_MSG_TYPE_RESET_WDG_TIMER;
+    if (false == app_send_msg_to_apptask(&bee_io_msg))
+    {
+        APP_PRINT_ERROR0("[WDG] send IO_MSG_TYPE_RESET_WDG_TIMER message failed!");
+    }
+
+    TIM_Cmd(TIMER_NUM, ENABLE);
+}
+
+/******************* (C) COPYRIGHT 2020 Realtek Semiconductor Corporation *****END OF FILE****/