Add RTC functionality

bsp/novosns/ns800/libraries/HAL_Drivers/drivers/SConscript

@@ -41,6 +41,9 @@ if GetDepend('BSP_USING_EPWM'):
 if GetDepend('BSP_USING_I2C'):
     src += ['drv_i2c.c']
 
+if GetDepend('BSP_USING_RTC'):
+    src += ['drv_rtc.c']
+
 group = DefineGroup('HAL_Drivers', src, depend = [''], CPPPATH = path)
 
 Return('group')

bsp/novosns/ns800/libraries/HAL_Drivers/drivers/drv_rtc.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2006-2026, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ */
+
+#ifndef __DRV_RTC_H__
+#define __DRV_RTC_H__
+
+#include <rtthread.h>
+#include <time.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct ns800_rtc_ops
+{
+    rt_err_t (*init)(void *user_data);
+    rt_err_t (*get_time)(void *user_data, struct tm *time);
+    rt_err_t (*set_time)(void *user_data, const struct tm *time);
+};
+
+rt_err_t ns800_rtc_register(const char *name,
+                            const struct ns800_rtc_ops *ops,
+                            void *user_data);
+int rt_hw_rtc_init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __DRV_RTC_H__ */
+

bsp/novosns/ns800/ns800rt7p65-nssinepad/board/Kconfig

@@ -184,6 +184,70 @@ menu "On-chip Peripheral Drivers"
 
     endif
 
+    menuconfig BSP_USING_RTC
+        bool "Enable external RTC"
+        select RT_USING_RTC
+        default n
+        help
+            Enable the board-level RTC framework for an external RTC chip.
+
+        if BSP_USING_RTC
+            choice
+                prompt "External RTC backend"
+                default BSP_RTC_USING_DS1307
+
+                config BSP_RTC_USING_DS1307
+                    bool "DS1307 over I2C"
+                    select BSP_USING_I2C
+                    select BSP_USING_HARD_I2C1
+                    select RT_USING_I2C
+
+                config BSP_RTC_USING_SOFT
+                    bool "Software RTC"
+            endchoice
+
+            if BSP_RTC_USING_DS1307
+                config BSP_RTC_DS1307_I2C_BUS_NAME
+                    string "DS1307 I2C bus name"
+                    default "hwi2c1"
+
+                config BSP_RTC_DS1307_I2C_ADDR
+                    hex "DS1307 I2C address"
+                    default 0x68
+            endif
+
+            if BSP_RTC_USING_SOFT
+                config BSP_RTC_SOFT_DEFAULT_YEAR
+                    int "Software RTC default year"
+                    default 2026
+
+                config BSP_RTC_SOFT_DEFAULT_MONTH
+                    int "Software RTC default month"
+                    range 1 12
+                    default 1
+
+                config BSP_RTC_SOFT_DEFAULT_DAY
+                    int "Software RTC default day"
+                    range 1 31
+                    default 1
+
+                config BSP_RTC_SOFT_DEFAULT_HOUR
+                    int "Software RTC default hour"
+                    range 0 23
+                    default 0
+
+                config BSP_RTC_SOFT_DEFAULT_MIN
+                    int "Software RTC default minute"
+                    range 0 59
+                    default 0
+
+                config BSP_RTC_SOFT_DEFAULT_SEC
+                    int "Software RTC default second"
+                    range 0 59
+                    default 0
+            endif
+        endif
+
     menuconfig BSP_USING_SPI
         bool "Enable SPI"
         select RT_USING_SPI

bsp/novosns/ns800/ns800rt7p65-nssinepad/board/SConscript

@@ -3,7 +3,13 @@ from building import *
 
 cwd = GetCurrentDir()
 src = ['board.c']
-path = [cwd]
+path = [cwd, cwd + '/port']
+
+if GetDepend('BSP_RTC_USING_DS1307'):
+    src += ['port/ds1307.c']
+
+if GetDepend('BSP_RTC_USING_SOFT'):
+    src += ['port/soft_rtc.c']
 
 cppdefines = ['NS800RT7P65X', 'USE_HAL_DRIVER', 'DUAL_CORE_ENABLE=0', 
         'SYSCLK_USE_PLL', 'SYSCLK_SOURCE_USE_HXTL', 'PLLCLK_SOURCE_USE_HXTL']

bsp/novosns/ns800/ns800rt7p65-nssinepad/board/port/ds1307.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2006-2026, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2026-06-24     wenzhi346    first version
+ */
+#ifndef __DS1307_H__
+#define __DS1307_H__
+
+#include <rtthread.h>
+#include <time.h>
+
+rt_err_t ds1307_init(void);
+rt_err_t ds1307_get_time(struct tm *time);
+rt_err_t ds1307_set_time(const struct tm *time);
+int rt_hw_ds1307_init(void);
+
+#endif
+

bsp/novosns/ns800/ns800rt7p65-nssinepad/board/port/soft_rtc.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2006-2026, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2026-06-30     rcitach    first version
+ */
+#ifndef __SOFT_RTC_H__
+#define __SOFT_RTC_H__
+
+#include <rtthread.h>
+#include <time.h>
+
+rt_err_t soft_rtc_init(void);
+rt_err_t soft_rtc_get_time(struct tm *time);
+rt_err_t soft_rtc_set_time(const struct tm *time);
+int rt_hw_soft_rtc_init(void);
+
+#endif /* __SOFT_RTC_H__ */
+