Merge pull request #1 from RT-Thread/master

sync rtt

27 files changed, 695 insertions, 269 deletions

diff --git a/bsp/ls1cdev/libraries/ls1c_can.c b/bsp/ls1cdev/libraries/ls1c_can.c
index f113e60990..437ef3ba84 100644
--- a/bsp/ls1cdev/libraries/ls1c_can.c
+++ b/bsp/ls1cdev/libraries/ls1c_can.c
@@ -1,21 +1,7 @@
 /*
- * File      : ls1c_can.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
@@ -25,6 +11,7 @@
 #include "ls1c.h"
 #include "ls1c_public.h"
 #include "ls1c_can.h"
+#include "ls1c_delay.h"
 
 unsigned char  set_reset_mode(CAN_TypeDef* CANx)
 {
@@ -51,7 +38,7 @@ unsigned char  set_reset_mode(CAN_TypeDef* CANx)
     /*检查复位标志*/
     status = CANx->MOD;
   }
-  rt_kprintf("\r\nSetting SJA1000 into reset mode failed!\r\n");
+  printf("\r\nSetting SJA1000 into reset mode failed!\r\n");
   return 0;  
 }
 
@@ -77,7 +64,7 @@ static unsigned char  set_normal_mode(CAN_TypeDef* CANx)
     delay_us(10); 
     status = CANx->MOD;	
   }
-  rt_kprintf("\r\nSetting SJA1000 into normal mode failed!\r\n");
+  printf("\r\nSetting SJA1000 into normal mode failed!\r\n");
   return 0;
 }
 
@@ -102,7 +89,7 @@ unsigned char CAN_Init(CAN_TypeDef* CANx, CAN_InitTypeDef* CAN_InitStruct)
   status = CANx->MOD;
   if( status == 0xFF)
   {
-    rt_kprintf("\n Probe can0 failed \r\n");  	   
+    printf("\n Probe can0 failed \r\n");  	   
     return CAN_InitStatus_Failed;
   }
 
diff --git a/bsp/ls1cdev/libraries/ls1c_can.h b/bsp/ls1cdev/libraries/ls1c_can.h
index 4e27a4b075..b2b0f8efa8 100644
--- a/bsp/ls1cdev/libraries/ls1c_can.h
+++ b/bsp/ls1cdev/libraries/ls1c_can.h
@@ -1,22 +1,7 @@
-
 /*
- * File      : ls1c_can.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:  (Pelican Mode) 
  * Date           Author       Notes
@@ -221,7 +206,7 @@ unsigned char CAN_Transmit(CAN_TypeDef* CANx, CanTxMsg* TxMessage);
 void CAN_Receive(CAN_TypeDef* CANx,  CanRxMsg* RxMessage);
 
 unsigned char  set_reset_mode(CAN_TypeDef* CANx);
-unsigned char  set_start(CAN_TypeDef* CANx); 
+unsigned char  set_start(CAN_TypeDef* CANx);
 
 #endif
 
diff --git a/bsp/ls1cdev/libraries/ls1c_clock.c b/bsp/ls1cdev/libraries/ls1c_clock.c
index c038651e8d..1ae621cbbb 100644
--- a/bsp/ls1cdev/libraries/ls1c_clock.c
+++ b/bsp/ls1cdev/libraries/ls1c_clock.c
@@ -1,28 +1,32 @@
-/*************************************************************************
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- * ʱ����غ���
+ * SPDX-License-Identifier: Apache-2.0
  *
- *************************************************************************/
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     勤为本       first version
+ */
 
 
 #include "ls1c_regs.h"
 #include "ls1c_public.h"
 
 
-// �����Ƶ��
+// 晶振的频率
 #define AHB_CLK                 (24000000)
 #define APB_CLK                 (AHB_CLK)
 
 
-// START_FREQ�Ĵ���bits
+// START_FREQ寄存器bits
 #define M_PLL_SHIFT             (8)
-#define M_PLL                   (0xff << M_PLL_SHIFT)       // PLL��Ƶϵ������������
+#define M_PLL                   (0xff << M_PLL_SHIFT)       // PLL倍频系数的整数部分
 #define FRAC_N_SHIFT            (16)
-#define FRAC_N                  (0xff << FRAC_N_SHIFT)      // PLL��Ƶϵ����С������
+#define FRAC_N                  (0xff << FRAC_N_SHIFT)      // PLL倍频系数的小数部分
 #define DIV_SDRAM_SHIFT         (0)
 #define DIV_SDRAM               (0x3  << DIV_SDRAM_SHIFT)
 
-// CLK_DIV_PARAM�Ĵ���bits
+// CLK_DIV_PARAM寄存器bits
 #define DIV_PIX_EN              (0x1  << 31)
 #define DIV_PIX                 (0x7f << 24)
 #define DIV_CAM_EN              (0x1  << 23)
@@ -42,8 +46,8 @@
 
 
 /*
- * ��ȡPLLƵ��
- * @ret PLLƵ��
+ * 获取PLL频率
+ * @ret PLL频率
  */
 unsigned long clk_get_pll_rate(void)
 {
@@ -58,8 +62,8 @@ unsigned long clk_get_pll_rate(void)
 
 
 /*
- * ��ȡCPUƵ��
- * @ret CPUƵ��
+ * 获取CPU频率
+ * @ret CPU频率
  */
 unsigned long clk_get_cpu_rate(void)
 {
@@ -69,8 +73,8 @@ unsigned long clk_get_cpu_rate(void)
     pll_rate = clk_get_pll_rate();
     ctrl = reg_read_32((volatile unsigned int *)LS1C_CLK_DIV_PARAM);
 
-    // ѡ��ʱ����Դ
-    if (DIV_CPU_SEL & ctrl)     // pll��Ƶ��Ϊʱ���ź�
+    // 选择时钟来源
+    if (DIV_CPU_SEL & ctrl)     // pll分频作为时钟信号
     {
         if (DIV_CPU_EN & ctrl)
         {
@@ -81,7 +85,7 @@ unsigned long clk_get_cpu_rate(void)
             cpu_rate = pll_rate / 2;
         }
     }
-    else                        // bypassģʽ��������Ϊʱ������
+    else                        // bypass模式，晶振作为时钟输入
     {
         cpu_rate = APB_CLK;
     }
@@ -91,8 +95,8 @@ unsigned long clk_get_cpu_rate(void)
 
 
 /*
- * ��ȡDDRƵ��
- * @ret DDRƵ��
+ * 获取DDR频率
+ * @ret DDR频率
  */
 unsigned long clk_get_ddr_rate(void)
 {
@@ -125,8 +129,8 @@ unsigned long clk_get_ddr_rate(void)
 
 
 /*
- * ��ȡAPBƵ��
- * @ret APBƵ��
+ * 获取APB频率
+ * @ret APB频率
  */
 unsigned long clk_get_apb_rate(void)
 {
@@ -135,8 +139,8 @@ unsigned long clk_get_apb_rate(void)
 
 
 /*
- * ��ȡDCƵ��
- * @ret DCƵ��
+ * 获取DC频率
+ * @ret DC频率
  */
 unsigned long clk_get_dc_rate(void)
 {
diff --git a/bsp/ls1cdev/libraries/ls1c_clock.h b/bsp/ls1cdev/libraries/ls1c_clock.h
index 8222350022..3cacb7454a 100644
--- a/bsp/ls1cdev/libraries/ls1c_clock.h
+++ b/bsp/ls1cdev/libraries/ls1c_clock.h
@@ -1,8 +1,12 @@
-/*************************************************************************
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- * ʱ�����ͷ�ļ�
+ * SPDX-License-Identifier: Apache-2.0
  *
- *************************************************************************/
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     ����       first version
+ */
 
 
 #ifndef __OPENLOONGSON_CLOCK_H
diff --git a/bsp/ls1cdev/libraries/ls1c_delay.c b/bsp/ls1cdev/libraries/ls1c_delay.c
index 214926e58e..418a310bf8 100644
--- a/bsp/ls1cdev/libraries/ls1c_delay.c
+++ b/bsp/ls1cdev/libraries/ls1c_delay.c
@@ -1,4 +1,12 @@
-// ������ʱԴ�ļ�
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     ����       first version
+ */
 
 
 #include "ls1c_clock.h"
@@ -12,7 +20,7 @@
  */
 void delay_ms(int j)
 {
-    int k_max = clk_get_cpu_rate()/1000/3;  // ����1000��ʾms������3Ϊ�������õľ���(��������Ϊ���ڲ�ѭ��ִ��һ����Ҫ��ʱ�Ӹ���)
+    int k_max = clk_get_cpu_rate()/1000/92;  // ����1000��ʾms������һ������Ϊʵ���õľ���ֵ
     int k = k_max;
 
     for ( ; j > 0; j--)
@@ -33,24 +41,25 @@ void delay_ms(int j)
  */
 void delay_us(int n)
 {
-    int count_1us = clk_get_cpu_rate() / 1000000 / 3;   // ��ʱ1us��ѭ������
+    int count_1us = 252000000 / 1000000 / 84;           // ��ʱ1us��ѭ������
+                    // 252000000ΪcpuƵ�ʣ�����1000000��ʾ��ʱ��λΪus��92Ϊʵ���õľ���ֵ
     int count_max;                                      // ��ʱn΢���ѭ������
     int tmp;
 
-    // ������ʱ����΢��(ע�⣬�������ֶ��Ż��ģ�cpuƵ�ʸı��˿�����Ҫ�����Ż�����ʱcpuƵ��Ϊ252Mhz)
+    // ΢��
+    count_max = n * count_1us;
     if (10 >= n)                // <=10us
     {
-        count_1us -= 35;
+        count_max = count_max / 3;
     }
     else if (100 >= n)          // <= 100us
     {
-        count_1us -= 6;
+        count_max = count_max - count_max / 5;
     }
     else                        // > 100us
     {
-        count_1us -= 1;
+        count_max = count_max - count_max / 10;
     }
-    count_max = n * count_1us;
 
     // ��ʱ
     for (tmp = count_max; tmp > 0; tmp--)
diff --git a/bsp/ls1cdev/libraries/ls1c_delay.h b/bsp/ls1cdev/libraries/ls1c_delay.h
index d6f366de33..15cc1d43b1 100644
--- a/bsp/ls1cdev/libraries/ls1c_delay.h
+++ b/bsp/ls1cdev/libraries/ls1c_delay.h
@@ -1,5 +1,12 @@
-// ������ʱͷ�ļ�
-
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     ����       first version
+ */
 
 
 #ifndef __OPENLOONGSON_DELAY_H
diff --git a/bsp/ls1cdev/libraries/ls1c_gpio.c b/bsp/ls1cdev/libraries/ls1c_gpio.c
index ee073b7c4b..4bf6b7a20b 100644
--- a/bsp/ls1cdev/libraries/ls1c_gpio.c
+++ b/bsp/ls1cdev/libraries/ls1c_gpio.c
@@ -1,4 +1,12 @@
-// ��װgpio�ӿ�
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     勤为本       first version
+ */
 
 
 #include "ls1c_public.h"
@@ -8,13 +16,13 @@
 
 
 /*
- * ��ȡָ��gpio��CFG�Ĵ���
- * @gpio gpio���
- * @ret CFG�Ĵ���
+ * 获取指定gpio的CFG寄存器
+ * @gpio gpio编号
+ * @ret CFG寄存器
  */
 volatile unsigned int *gpio_get_cfg_reg(unsigned int gpio)
 {
-    volatile unsigned int *gpio_cfgx = NULL;            // GPIO_CFGx�Ĵ���
+    volatile unsigned int *gpio_cfgx = NULL;            // GPIO_CFGx寄存器
     unsigned int port = GPIO_GET_PORT(gpio);
 
     switch (port)
@@ -45,13 +53,13 @@ volatile unsigned int *gpio_get_cfg_reg(unsigned int gpio)
 
 
 /*
- * ��ȡָ��gpio��EN�Ĵ���
- * @gpio gpio���
- * @ret EN�Ĵ���
+ * 获取指定gpio的EN寄存器
+ * @gpio gpio编号
+ * @ret EN寄存器
  */
 volatile unsigned int *gpio_get_en_reg(unsigned int gpio)
 {
-    volatile unsigned int *gpio_enx = NULL;         // GPIO_ENx�Ĵ���
+    volatile unsigned int *gpio_enx = NULL;         // GPIO_ENx寄存器
     unsigned int port = GPIO_GET_PORT(gpio);
     
     switch (port)
@@ -81,28 +89,28 @@ volatile unsigned int *gpio_get_en_reg(unsigned int gpio)
 }
 
 /*
- * gpio��ʼ��
- * @gpio gpio���ţ�ȡֵ��Χ[0, 127]
- * @mode gpio�Ĺ���ģʽ(���롢���)
+ * gpio初始化
+ * @gpio gpio引脚，取值范围[0, 127]
+ * @mode gpio的工作模式(输入、输出)
  *
- * ��: ��gpio50��ʼ��Ϊ���
+ * 例: 将gpio50初始化为输出
  * gpio_init(50, gpio_mode_output);
  */
 void gpio_init(unsigned int gpio, gpio_mode_t mode)
 {
-    volatile unsigned int *gpio_enx = NULL;        // GPIO_ENx�Ĵ���
+    volatile unsigned int *gpio_enx = NULL;        // GPIO_ENx寄存器
     unsigned int pin = GPIO_GET_PIN(gpio);
 
-    // ��pin��Ϊ��ͨGPIO
+    // 将pin设为普通GPIO
     pin_set_purpose(gpio, PIN_PURPOSE_GPIO);
 
-    // ����gpio����ģʽ(���롢���)
+    // 设置gpio工作模式(输入、输出)
     gpio_enx  = gpio_get_en_reg(gpio);
-    if (gpio_mode_output == mode)       // ���
+    if (gpio_mode_output == mode)       // 输出
     {
         reg_clr_one_bit(gpio_enx, pin);
     }
-    else                                // ����
+    else                                // 输入
     {
         reg_set_one_bit(gpio_enx, pin);
     }
@@ -112,20 +120,20 @@ void gpio_init(unsigned int gpio, gpio_mode_t mode)
 
 
 /*
- * ��ָ��gpio����ߵ�ƽ��͵�ƽ
- * @gpio gpio���ţ�ȡֵ��Χ[0, 127]
- * @level ��ƽֵ
+ * 在指定gpio输出高电平或低电平
+ * @gpio gpio引脚，取值范围[0, 127]
+ * @level 电平值
  *
- * ��: ��gpio50������͵�ƽ
+ * 例: 在gpio50上输出低电平
  * gpio_set(50, gpio_level_low);
  */
 void gpio_set(unsigned int gpio, gpio_level_t level)
 {
-    volatile unsigned int *gpio_outx = NULL;       // GPIO_OUTx�Ĵ���
+    volatile unsigned int *gpio_outx = NULL;       // GPIO_OUTx寄存器
     unsigned int port   = GPIO_GET_PORT(gpio);
     unsigned int pin    = GPIO_GET_PIN(gpio);
 
-    // ��ȡ�Ĵ�����ַ
+    // 获取寄存器地址
     switch (port)
     {
         case 0:
@@ -144,11 +152,11 @@ void gpio_set(unsigned int gpio, gpio_level_t level)
             gpio_outx = (volatile unsigned int *)LS1C_GPIO_OUT3;
             break;
 
-        default:        // ��ȷ�ij���Ӧ���ߵ����ֱ�ӷ���
+        default:        // 正确的程序不应该走到这里，直接返回
             return ;
     }
 
-    // ���
+    // 输出
     if (gpio_level_low == level)
     {
         reg_clr_one_bit(gpio_outx, pin);
@@ -163,20 +171,20 @@ void gpio_set(unsigned int gpio, gpio_level_t level)
 
 
 /*
- * ��ȡָ��gpio���ŵ�ֵ
- * @gpio gpio���ţ�ȡֵ��Χ[0,127]
+ * 读取指定gpio引脚的值
+ * @gpio gpio引脚，取值范围[0,127]
  *
- * ��: ��ȡgpio50�����ϵ�ֵ
+ * 例: 读取gpio50引脚上的值
  * gpio_level_t level;
  * level = gpio_get(50);
  */
 unsigned int gpio_get(unsigned int gpio)
 {
-    volatile unsigned int *gpio_inx = NULL;        // GPIO_INx�Ĵ���
+    volatile unsigned int *gpio_inx = NULL;        // GPIO_INx寄存器
     unsigned int port   = GPIO_GET_PORT(gpio);
     unsigned int pin    = GPIO_GET_PIN(gpio);
 
-    // ��ȡ�Ĵ�����ַ
+    // 获取寄存器地址
     switch (port)
     {
         case 0:
@@ -195,28 +203,28 @@ unsigned int gpio_get(unsigned int gpio)
             gpio_inx = (volatile unsigned int *)LS1C_GPIO_IN3;
             break;
 
-        default:        // ���������̲�Ӧ���ߵ����ֱ�ӷ���
+        default:        // 正常的流程不应该走到这里，直接返回
             return 0;
     }
 
-    // ��ȡ
+    // 读取
     return reg_get_bit(gpio_inx, pin);
 }
 
 
 /**
- * ���������
- * @gpio gpio����
- * @type �����жϵ��������ߵ�ƽ�������͵�ƽ�����������ش��� or �½��ش���
+ * 设置中断类型
+ * @gpio gpio引脚
+ * @type 触发中断的条件。高电平触发、低电平触发、上升沿触发 or 下降沿触发
  */
 void gpio_set_irq_type(unsigned int gpio, gpio_irq_type_t type)
 {
-    volatile unsigned int *int_pol = NULL;     // �жϼ���ѡ��Ĵ���
-    volatile unsigned int *int_edge = NULL;    // �жϱ���ѡ��Ĵ���
+    volatile unsigned int *int_pol = NULL;     // 中断极性选择寄存器
+    volatile unsigned int *int_edge = NULL;    // 中断边沿选择寄存器
     unsigned int port = GPIO_GET_PORT(gpio);
     unsigned int pin  = GPIO_GET_PIN(gpio);
 
-    // ��ȡ�Ĵ�����ַ
+    // 获取寄存器地址
     switch (port)
     {
         case 0:     // GPIO[31:0]
@@ -235,7 +243,7 @@ void gpio_set_irq_type(unsigned int gpio, gpio_irq_type_t type)
             break;
     }
 
-    // ���������
+    // 设置中断类型
     switch (type)
     {
         case IRQ_TYPE_EDGE_RISING:
diff --git a/bsp/ls1cdev/libraries/ls1c_gpio.h b/bsp/ls1cdev/libraries/ls1c_gpio.h
index 1609684bd3..c5c9b12312 100644
--- a/bsp/ls1cdev/libraries/ls1c_gpio.h
+++ b/bsp/ls1cdev/libraries/ls1c_gpio.h
@@ -1,3 +1,12 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     ����       first version
+ */
 
 
 #ifndef __OPENLOONGSON_GPIO_H
diff --git a/bsp/ls1cdev/libraries/ls1c_i2c.c b/bsp/ls1cdev/libraries/ls1c_i2c.c
index 6a1622471c..11475cf149 100644
--- a/bsp/ls1cdev/libraries/ls1c_i2c.c
+++ b/bsp/ls1cdev/libraries/ls1c_i2c.c
@@ -1,21 +1,7 @@
 /*
- * File      : ls1c_i2c.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/bsp/ls1cdev/libraries/ls1c_i2c.h b/bsp/ls1cdev/libraries/ls1c_i2c.h
index ada22242fb..1fb1ef6941 100644
--- a/bsp/ls1cdev/libraries/ls1c_i2c.h
+++ b/bsp/ls1cdev/libraries/ls1c_i2c.h
@@ -1,21 +1,7 @@
 /*
- * File      : ls1c_i2c.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
diff --git a/bsp/ls1cdev/libraries/ls1c_pin.c b/bsp/ls1cdev/libraries/ls1c_pin.c
index 81f56c0b0c..0a817abe07 100644
--- a/bsp/ls1cdev/libraries/ls1c_pin.c
+++ b/bsp/ls1cdev/libraries/ls1c_pin.c
@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     勤为本       first version
+ */
+
 // 引脚功能(普通gpio，pwm，复用等)相关接口
 
 
diff --git a/bsp/ls1cdev/libraries/ls1c_pin.h b/bsp/ls1cdev/libraries/ls1c_pin.h
index c483f5659a..26cc4cac92 100644
--- a/bsp/ls1cdev/libraries/ls1c_pin.h
+++ b/bsp/ls1cdev/libraries/ls1c_pin.h
@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     ����       first version
+ */
+
 // ���Ź���(��ͨgpio��pwm�����õ�)��ؽӿ�
 
 #ifndef __OPENLOONGSON_PIN_H
diff --git a/bsp/ls1cdev/libraries/ls1c_public.c b/bsp/ls1cdev/libraries/ls1c_public.c
index 3e57e9a50a..3523ced419 100644
--- a/bsp/ls1cdev/libraries/ls1c_public.c
+++ b/bsp/ls1cdev/libraries/ls1c_public.c
@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     ����       first version
+ */
+
 // һЩ���õġ����õĽӿ�
 
 /*
diff --git a/bsp/ls1cdev/libraries/ls1c_public.h b/bsp/ls1cdev/libraries/ls1c_public.h
index c06aa4dd8a..5d2390acec 100644
--- a/bsp/ls1cdev/libraries/ls1c_public.h
+++ b/bsp/ls1cdev/libraries/ls1c_public.h
@@ -1,4 +1,14 @@
-// һЩ���õġ����õĽӿ�
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     勤为本       first version
+ */
+
+// 一些常用的、共用的接口
 
 #ifndef __OPENLOONGSON_PUBLIC_H
 #define __OPENLOONGSON_PUBLIC_H
@@ -7,7 +17,7 @@
 #include <stdio.h>
 
 
-// pmon�ṩ�Ĵ�ӡ��������main()����
+// pmon提供的打印函数，见main()函数
 struct callvectors {
 	int     (*open) (char *, int, int);
 	int     (*close) (int);
@@ -35,58 +45,58 @@ typedef enum
 }BOOL;
 
 /*
- * ��ָ���Ĵ�����ָ��λ��1
- * @reg �Ĵ�����ַ
- * @bit ��Ҫ��1����һbit
+ * 将指定寄存器的指定位置1
+ * @reg 寄存器地址
+ * @bit 需要置1的那一bit
  */
 void reg_set_one_bit(volatile unsigned int *reg, unsigned int bit);
 
 
 /*
- * ��ָ���Ĵ�����ָ��λ����
- * @reg �Ĵ�����ַ
- * @bit ��Ҫ�������һbit
+ * 将指定寄存器的指定位清零
+ * @reg 寄存器地址
+ * @bit 需要清零的那一bit
  */
 void reg_clr_one_bit(volatile unsigned int *reg, unsigned int bit);
 
 
 /*
- * ��ȡָ���Ĵ�����ָ��λ��ֵ
- * @reg �Ĵ�����ַ
- * @bit ��Ҫ��ȡֵ����һbit
- * @ret ָ��λ��ֵ
+ * 获取指定寄存器的指定位的值
+ * @reg 寄存器地址
+ * @bit 需要读取值的那一bit
+ * @ret 指定位的值
  */
 unsigned int reg_get_bit(volatile unsigned int *reg, unsigned int bit);
 
 
 /*
- * ��Ĵ�����д��8bit(һ���ֽ�)����
- * @data ��������
- * @addr �Ĵ�����ַ
+ * 向寄存器中写入8bit(一个字节)数据
+ * @data 待写入的数据
+ * @addr 寄存器地址
  */
 void reg_write_8(unsigned char data, volatile unsigned char *addr);
 
 
 /*
- * �ӼĴ�������8bit(һ���ֽ�)����
- * @addr �Ĵ�����ַ
- * @ret ����������
+ * 从寄存器读出8bit(一个字节)数据
+ * @addr 寄存器地址
+ * @ret 读出的数据
  */
 unsigned char reg_read_8(volatile unsigned char *addr);
 
 
 /*
- * ��Ĵ�����дһ��32bit������
- * @data ��������
- * @addr �Ĵ�����ַ
+ * 向寄存器中写一个32bit的数据
+ * @data 待写入的数据
+ * @addr 寄存器地址
  */
 void reg_write_32(unsigned int data, volatile unsigned int *addr);
 
 
 /*
- * �ӼĴ�������һ��32bit����
- * @addr �Ĵ�����ַ
- * @ret ����������
+ * 从寄存器读出一个32bit数据
+ * @addr 寄存器地址
+ * @ret 读出的数据
  */
 unsigned int reg_read_32(volatile unsigned int *addr);
 
diff --git a/bsp/ls1cdev/libraries/ls1c_pwm.c b/bsp/ls1cdev/libraries/ls1c_pwm.c
index 01ffc6f3a9..b91f81c43b 100644
--- a/bsp/ls1cdev/libraries/ls1c_pwm.c
+++ b/bsp/ls1cdev/libraries/ls1c_pwm.c
@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     ����       first version
+ */
+
 // ��װӲ��pwm�ӿ�
 
 #include "ls1c_public.h"
@@ -6,13 +16,9 @@
 #include "ls1c_clock.h"
 #include "ls1c_regs.h"
 
-
-
 // pwm���������
 #define PWM_MAX_PERIOD                  (0xFFFFFF)      // ��������ֵ
 
-
-
 /*
  * ����gpio��ȡ��Ӧpwm�Ļ���ַ
  * @gpio pwm����
@@ -193,5 +199,3 @@ void pwm_init(pwm_info_t *pwm_info)
     return ;
 }
 
-
-
diff --git a/bsp/ls1cdev/libraries/ls1c_pwm.h b/bsp/ls1cdev/libraries/ls1c_pwm.h
index aa9daeeb0c..865a2ddf1d 100644
--- a/bsp/ls1cdev/libraries/ls1c_pwm.h
+++ b/bsp/ls1cdev/libraries/ls1c_pwm.h
@@ -1,3 +1,12 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     ����       first version
+ */
 
 
 #ifndef __OPENLOONGSON_PWM_H
diff --git a/bsp/ls1cdev/libraries/ls1c_regs.h b/bsp/ls1cdev/libraries/ls1c_regs.h
index 1f8b60ed17..7947c2bfe0 100644
--- a/bsp/ls1cdev/libraries/ls1c_regs.h
+++ b/bsp/ls1cdev/libraries/ls1c_regs.h
@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-09-06     勤为本       first version
+ */
+
 // 龙芯1c外设寄存器
 
 
@@ -139,6 +149,8 @@
 #define LS1C_UART10_BASE                    (0xbfe4ca00)
 #define LS1C_UART11_BASE                    (0xbfe4cb00)
 
+//RTC寄存器
+#define LS1C_RTC_BASE                       (0xbfe64024)
 
 
 #endif
diff --git a/bsp/ls1cdev/libraries/ls1c_rtc.c b/bsp/ls1cdev/libraries/ls1c_rtc.c
new file mode 100644
index 0000000000..838f6a85c1
--- /dev/null
+++ b/bsp/ls1cdev/libraries/ls1c_rtc.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-05-06     sundm75       first version
+ */
+#include "ls1c.h"
+#include "ls1c_public.h"
+#include "ls1c_rtc.h"
+
+#define LS1C_SEC_OFFSET		(4)
+#define LS1C_MIN_OFFSET		(10)
+#define LS1C_HOUR_OFFSET	(16)
+#define LS1C_DAY_OFFSET		(21)
+#define LS1C_MONTH_OFFSET	(26)
+
+#define LS1C_SEC_MASK		(0x3f)
+#define LS1C_MIN_MASK		(0x3f)
+#define LS1C_HOUR_MASK		(0x1f)
+#define LS1C_DAY_MASK		(0x1f)
+#define LS1C_MONTH_MASK		(0x3f)
+#define LS1C_YEAR_MASK		(0xff)
+
+#define ls1c_get_sec(t)		(((t) >> LS1C_SEC_OFFSET) & LS1C_SEC_MASK)
+#define ls1c_get_min(t)		(((t) >> LS1C_MIN_OFFSET) & LS1C_MIN_MASK)
+#define ls1c_get_hour(t)	(((t) >> LS1C_HOUR_OFFSET) & LS1C_HOUR_MASK)
+#define ls1c_get_day(t)		(((t) >> LS1C_DAY_OFFSET) & LS1C_DAY_MASK)
+#define ls1c_get_month(t)	(((t) >> LS1C_MONTH_OFFSET) & LS1C_MONTH_MASK)
+
+int RTC_SetTime(RTC_TypeDef *hrtc, RTC_TimeTypeDef *sTime)
+{
+
+	hrtc->SYS_TOYWRITE0
+		= (sTime->Month  << LS1C_MONTH_OFFSET)
+		| (sTime->Date << LS1C_DAY_OFFSET)
+		| (sTime->Hours << LS1C_HOUR_OFFSET)
+		| (sTime->Minutes  << LS1C_MIN_OFFSET)
+		| (sTime->Seconds  << LS1C_SEC_OFFSET);
+	hrtc->SYS_TOYWRITE1 =  sTime->Year % 100;
+	printf("\r\ntoy_read0 = 0x%x, toy_read1 = 0x%x.\r\n", hrtc->SYS_TOYREAD0, hrtc->SYS_TOYREAD1);
+
+   return 0;
+}
+
+int RTC_GetTime(RTC_TypeDef *hrtc, RTC_TimeTypeDef *sTime)
+{
+  unsigned long toy_read0, toy_read1; 
+  toy_read0 = hrtc->SYS_TOYREAD0;
+  toy_read1 = hrtc->SYS_TOYREAD1; 
+  sTime->Seconds = ls1c_get_sec(toy_read0);
+  sTime->Minutes = ls1c_get_min(toy_read0);
+  sTime->Hours = ls1c_get_hour(toy_read0);
+  sTime->Date = ls1c_get_day(toy_read0);
+  sTime->Month = ls1c_get_month(toy_read0);
+  sTime->Year = toy_read1 & LS1C_YEAR_MASK;  
+  return 0 ;
+}
+
+unsigned char RTC_IsLeapYear(unsigned int nYear)
+{
+  if((nYear % 4U) != 0U) 
+  {
+    return 0U;
+  }
+  
+  if((nYear % 100U) != 0U) 
+  {
+    return 1U;
+  }
+  
+  if((nYear % 400U) == 0U)
+  {
+    return 1U;
+  }
+  else
+  {
+    return 0U;
+  }
+}
+
+unsigned char RTC_WeekDayNum(unsigned long nYear, unsigned char nMonth, unsigned char nDay)
+{
+  unsigned long year = 0U, weekday = 0U;
+
+  year = 2000U + nYear;
+  
+  if(nMonth < 3U)
+  {
+    /*D = { [(23 x month)/9] + day + 4 + year + [(year-1)/4] - [(year-1)/100] + [(year-1)/400] } mod 7*/
+    weekday = (((23U * nMonth)/9U) + nDay + 4U + year + ((year-1U)/4U) - ((year-1U)/100U) + ((year-1U)/400U)) % 7U;
+  }
+  else
+  {
+    /*D = { [(23 x month)/9] + day + 4 + year + [year/4] - [year/100] + [year/400] - 2 } mod 7*/
+    weekday = (((23U * nMonth)/9U) + nDay + 4U + year + (year/4U) - (year/100U) + (year/400U) - 2U ) % 7U; 
+  }
+
+  return (unsigned char)weekday;
+}
diff --git a/bsp/ls1cdev/libraries/ls1c_rtc.h b/bsp/ls1cdev/libraries/ls1c_rtc.h
new file mode 100644
index 0000000000..dee8000d6b
--- /dev/null
+++ b/bsp/ls1cdev/libraries/ls1c_rtc.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-05-06     sundm75       first version
+ */
+
+ #ifndef __OPENLOONGSON_RTC_H
+#define __OPENLOONGSON_RTC_H
+
+
+#define RTC               ( (RTC_TypeDef* )LS1C_RTC_BASE)
+
+typedef struct
+{
+  unsigned char Year;     /*0 ~ 99 */
+  unsigned char Month;    /*1 ~ 12 */
+  unsigned char Date;     /*1 ~ 31 */
+  unsigned char Hours;    /*0 ~ 23 */
+  unsigned char Minutes;  /*0 ~ 59 */
+  unsigned char Seconds;  /*0 ~ 59 */
+}RTC_TimeTypeDef; 
+
+typedef struct
+{
+   unsigned long SYS_TOYWRITE0;
+   unsigned long SYS_TOYWRITE1;
+   unsigned long SYS_TOYREAD0;
+   unsigned long SYS_TOYREAD1;
+} RTC_TypeDef;
+
+int  RTC_SetTime(RTC_TypeDef *hrtc, RTC_TimeTypeDef *sTime);
+int  RTC_GetTime(RTC_TypeDef *hrtc, RTC_TimeTypeDef *sTime);
+
+unsigned char RTC_IsLeapYear(unsigned int nYear);
+unsigned char RTC_WeekDayNum(unsigned long nYear, unsigned char nMonth, unsigned char nDay);
+
+#endif
diff --git a/bsp/ls1cdev/libraries/ls1c_spi.c b/bsp/ls1cdev/libraries/ls1c_spi.c
index eff1deb74f..6ad39d964c 100644
--- a/bsp/ls1cdev/libraries/ls1c_spi.c
+++ b/bsp/ls1cdev/libraries/ls1c_spi.c
@@ -1,21 +1,7 @@
 /*
- * File      : ls1c_spi.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
@@ -24,7 +10,6 @@
 
 // 硬件spi接口源文件
 
-
 #include <string.h>
 #include "ls1c_public.h"
 #include "ls1c_regs.h"
@@ -38,7 +23,7 @@
  * 获取指定SPI模块的基地址
  * @SPIx SPI模块的编号
  */
-inline void *ls1c_spi_get_base(unsigned char SPIx)
+void *ls1c_spi_get_base(unsigned char SPIx)
 {
     void *base = NULL;
 
@@ -67,7 +52,7 @@ inline void *ls1c_spi_get_base(unsigned char SPIx)
  */
 void ls1c_spi_print_all_regs_info(void *spi_base)
 {
-    rt_kprintf("[%s] SPCR=0x%x, SPSR=0x%x, SPER=0x%x, SFC_PARAM=0x%x, SFC_SOFTCS=0x%x, SFC_TIMING=0x%x\r\n",
+    printf("[%s] SPCR=0x%x, SPSR=0x%x, SPER=0x%x, SFC_PARAM=0x%x, SFC_SOFTCS=0x%x, SFC_TIMING=0x%x\r\n",
               __FUNCTION__, 
               reg_read_8(spi_base + LS1C_SPI_SPCR_OFFSET),
               reg_read_8(spi_base + LS1C_SPI_SPSR_OFFSET),
@@ -137,7 +122,7 @@ unsigned int ls1c_spi_get_div(unsigned int max_speed_hz)
             break;
     }
 /*    
-    rt_kprintf("[%s] clk=%ld, max_speed_hz=%d, div_tmp=%d, bit=%d\r\n", 
+    printf("[%s] clk=%ld, max_speed_hz=%d, div_tmp=%d, bit=%d\r\n", 
               __FUNCTION__, clk, max_speed_hz, div_tmp, bit);
 */
     return div_tmp;
@@ -229,7 +214,7 @@ void ls1c_spi_set_cs(void *spi_base, unsigned char cs, int new_status)
  * 等待收发完成
  * @spi_base 基地址
  */
-inline void ls1c_spi_wait_txrx_done(void *spi_base)
+void ls1c_spi_wait_txrx_done(void *spi_base)
 {
     int timeout = LS1C_SPI_TX_TIMEOUT;
 
@@ -247,7 +232,7 @@ inline void ls1c_spi_wait_txrx_done(void *spi_base)
  * 清中断和标志位
  * @spi_base 基地址
  */
-inline void ls1c_spi_clear(void *spi_base)
+void ls1c_spi_clear(void *spi_base)
 {
     unsigned char val = 0;
 
@@ -260,7 +245,7 @@ inline void ls1c_spi_clear(void *spi_base)
     val = reg_read_8(spi_base + LS1C_SPI_SPSR_OFFSET);
     if (LS1C_SPI_SPSR_WCOL_MASK & val)
     {
-        rt_kprintf("[%s] clear register SPSR's wcol!\r\n",__FUNCTION__);       // 手册和linux源码中不一样，加个打印看看
+        printf("[%s] clear register SPSR's wcol!\r\n");       // 手册和linux源码中不一样，加个打印看看
         reg_write_8(val & ~LS1C_SPI_SPSR_WCOL_MASK, spi_base + LS1C_SPI_SPSR_OFFSET);   // 写0，linux源码中是写0
 //        reg_write_8(val | LS1C_SPI_SPSR_WCOL_MASK, spi_base + LS1C_SPI_SPSR_OFFSET);  // 写1，按照1c手册，应该写1
     }
diff --git a/bsp/ls1cdev/libraries/ls1c_spi.h b/bsp/ls1cdev/libraries/ls1c_spi.h
index 8046127de7..bd02dd8d17 100644
--- a/bsp/ls1cdev/libraries/ls1c_spi.h
+++ b/bsp/ls1cdev/libraries/ls1c_spi.h
@@ -1,61 +1,47 @@
 /*
- * File      : ls1c_spi.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
- * 2017-10-23     ����       first version
+ * 2017-10-23     勤为本       first version
  */
 
-// Ӳ��spi�ӿڵ�ͷ�ļ�
+// 硬件spi接口的头文件
 
 #ifndef __OPENLOONGSON_SPI_H
 #define __OPENLOONGSON_SPI_H
 
 
-// SPIģ����
+// SPI模块编号
 #define LS1C_SPI_0                      (0)
 #define LS1C_SPI_1                      (1)
 
-// Ƭѡ
+// 片选
 #define LS1C_SPI_CS_0                   (0)
 #define LS1C_SPI_CS_1                   (1)
 #define LS1C_SPI_CS_2                   (2)
 #define LS1C_SPI_CS_3                   (3)
 
-// ʱ�Ӽ��Ժ���λ
+// 时钟极性和相位
 #define SPI_CPOL_1                      (1)
 #define SPI_CPOL_0                      (0)
 #define SPI_CPHA_1                      (1)
 #define SPI_CPHA_0                      (0)
 
 
-// �Ĵ���ƫ��
-#define LS1C_SPI_SPCR_OFFSET                (0)     // ���ƼĴ���
-#define LS1C_SPI_SPSR_OFFSET                (1)     // ״̬�Ĵ���
-#define LS1C_SPI_TxFIFO_OFFSET              (2)     // ���͵����ݼĴ�������������ݼĴ�����ƫ����ͬ
-#define LS1C_SPI_RxFIFO_OFFSET              (2)     // ���յ����ݼĴ������뷢�����ݼĴ�����ƫ����ͬ
-#define LS1C_SPI_SPER_OFFSET                (3)     // �ⲿ�Ĵ���
-#define LS1C_SPI_SFC_PARAM_OFFSET           (4)     // �������ƼĴ���
-#define LS1C_SPI_SFC_SOFTCS_OFFSET          (5)     // Ƭѡ���ƼĴ���
-#define LS1C_SPI_SFC_TIMING_OFFSET          (6)     // ʱ����ƼĴ���
+// 寄存器偏移
+#define LS1C_SPI_SPCR_OFFSET                (0)     // 控制寄存器
+#define LS1C_SPI_SPSR_OFFSET                (1)     // 状态寄存器
+#define LS1C_SPI_TxFIFO_OFFSET              (2)     // 发送的数据寄存器，与接收数据寄存器的偏移相同
+#define LS1C_SPI_RxFIFO_OFFSET              (2)     // 接收的数据寄存器，与发送数据寄存器的偏移相同
+#define LS1C_SPI_SPER_OFFSET                (3)     // 外部寄存器
+#define LS1C_SPI_SFC_PARAM_OFFSET           (4)     // 参数控制寄存器
+#define LS1C_SPI_SFC_SOFTCS_OFFSET          (5)     // 片选控制寄存器
+#define LS1C_SPI_SFC_TIMING_OFFSET          (6)     // 时序控制寄存器
 
-// �Ĵ���SPCR�е�λ��
+// 寄存器SPCR中的位域
 #define LS1C_SPI_SPCR_SPIE_BIT              (7)
 #define LS1C_SPI_SPCR_SPIE_MASK             (0x01 << LS1C_SPI_SPCR_SPIE_BIT)
 #define LS1C_SPI_SPCR_SPE_BIT               (6)
@@ -67,75 +53,75 @@
 #define LS1C_SPI_SPCR_SPR_BIT               (0)
 #define LS1C_SPI_SPCR_SPR_MASK              (0x03 << LS1C_SPI_SPCR_SPR_BIT)
 
-// �Ĵ���SPSR�е�λ��
+// 寄存器SPSR中的位域
 #define LS1C_SPI_SPSR_SPIF_BIT              (7)
 #define LS1C_SPI_SPSR_SPIF_MASK             (0x01 << LS1C_SPI_SPSR_SPIF_BIT)
 #define LS1C_SPI_SPSR_WCOL_BIT              (6)
 #define LS1C_SPI_SPSR_WCOL_MASK             (0x01 << LS1C_SPI_SPSR_WCOL_BIT)
 
-// �Ĵ���SPER�е�λ��
+// 寄存器SPER中的位域
 #define LS1C_SPI_SPER_SPRE_BIT              (0)
 #define LS1C_SPI_SPER_SPRE_MASK             (0x3 << LS1C_SPI_SPER_SPRE_BIT)
 
-// �Ĵ���SFC_SOFTCS��λ��
+// 寄存器SFC_SOFTCS的位域
 #define LS1C_SPI_SFC_SOFTCS_CSN_BIT         (4)
 #define LS1C_SPI_SFC_SOFTCS_CSN_MASK        (0x0f << LS1C_SPI_SFC_SOFTCS_CSN_BIT)
 #define LS1C_SPI_SFC_SOFTCS_CSEN_BIT        (0)
 #define LS1C_SPI_SFC_SOFTCS_CSEN_MASK       (0x0f << LS1C_SPI_SFC_SOFTCS_CSEN_BIT)
 
-// ���ͳ�ʱ������ֵ
+// 发送超时的门限值
 #define LS1C_SPI_TX_TIMEOUT                 (20000)
 
 
 
 /*
- * ��ȡָ��SPIģ��Ļ���ַ
- * @SPIx SPIģ��ı��
+ * 获取指定SPI模块的基地址
+ * @SPIx SPI模块的编号
  */
-inline void *ls1c_spi_get_base(unsigned char SPIx);
+void *ls1c_spi_get_base(unsigned char SPIx);
 
 
 /*
- * ����ʱ��
- * @spi_base ����ַ
- * @max_hz ���Ƶ�ʣ���λhz
+ * 设置时钟
+ * @spi_base 基地址
+ * @max_hz 最大频率，单位hz
  */
 void ls1c_spi_set_clock(void *spi_base, unsigned long max_hz);
 
 
 /*
- * ����ͨ��ģʽ(ʱ�Ӽ��Ժ���λ)
- * @spi_base ����ַ
- * @cpol ʱ�Ӽ���
- * @cpha ʱ����λ
+ * 设置通信模式(时钟极性和相位)
+ * @spi_base 基地址
+ * @cpol 时钟极性
+ * @cpha 时钟相位
  */
 void ls1c_spi_set_mode(void *spi_base, unsigned char cpol, unsigned char cpha);
 
 
 /*
- * ����ָ��ƬѡΪָ��״̬
- * @spi_base ����ַ
- * @cs Ƭѡ
- * @new_status Ƭѡ���ŵ���״̬��ȡֵΪ0��1�����ߵ�ƽ��͵�ƽ
+ * 设置指定片选为指定状态
+ * @spi_base 基地址
+ * @cs 片选
+ * @new_status 片选引脚的新状态，取值为0或1，即高电平或低电平
  */
 void ls1c_spi_set_cs(void *spi_base, unsigned char cs, int new_status);
 
 
 /*
- * ͨ��ָ��SPI���ͽ���һ���ֽ�
- * ע�⣬�ڶ������ϵͳ�У��˺�����Ҫ���⡣
- * ����֤�ں�ij�����豸�շ�ij���ֽڵĹ����У����ܱ��л�����������ͬʱ���������ͬһ��SPI�����ϵĴ��豸ͨ��
- * ��Ϊ��о1c��ÿ·SPI�Ͽ��ܽ��в�ͬ�Ĵ��豸��ͨ��Ƶ�ʡ�ģʽ�ȿ��ܲ�ͬ
- * @spi_base ����ַ
- * @tx_ch �����͵�����
- * @ret �յ�������
+ * 通过指定SPI发送接收一个字节
+ * 注意，在多任务的系统中，此函数需要互斥。
+ * 即保证在和某个从设备收发某个字节的过程中，不能被切换到其它任务同时与另外的在同一个SPI总线上的从设备通信
+ * 因为龙芯1c的每路SPI上可能接有不同的从设备，通信频率、模式等可能不同
+ * @spi_base 基地址
+ * @tx_ch 待发送的数据
+ * @ret 收到的数据
  */
 unsigned char ls1c_spi_txrx_byte(void *spi_base, unsigned char tx_ch);
 
 
 /*
- * ��ӡָ��SPIģ������мĴ�����ֵ
- * @spi_base ����ַ
+ * 打印指定SPI模块的所有寄存器的值
+ * @spi_base 基地址
  */
 void ls1c_spi_print_all_regs_info(void *spi_base);
 
diff --git a/bsp/ls1cdev/libraries/ls1c_timer.c b/bsp/ls1cdev/libraries/ls1c_timer.c
index 0075e6e3f6..11cadf18aa 100644
--- a/bsp/ls1cdev/libraries/ls1c_timer.c
+++ b/bsp/ls1cdev/libraries/ls1c_timer.c
@@ -1,6 +1,15 @@
+ /*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ *                             first version
+ */
 // Ӳ����ʱ��Դ��
 
-
+#include <ls1c.h>  
 #include "ls1c_public.h"
 #include "ls1c_pin.h"
 #include "ls1c_clock.h"
@@ -147,8 +156,6 @@ void timer_stop(timer_info_t *timer_info)
     return ;
 }
 
-
-
 /*
  * ��ȡ��ʱ���ӳ�ʼ�������ڵ�ʱ��(ʵ�ּ�ʱ����)����λns
  * @timer_info Ӳ����ʱ��
@@ -172,13 +179,11 @@ unsigned long timer_get_time_ns(timer_info_t *timer_info)
      */
     timer_clk = clk_get_apb_rate();
     time_ns = (cntr * 1000 ) / (timer_clk /1000000);
-//    rt_kprintf("[%s] time_us=%lu, cntr=%d, timer_clk=%d\n", __FUNCTION__, time_ns, cntr, timer_clk);
+//    printf("[%s] time_us=%lu, cntr=%d, timer_clk=%d\n", __FUNCTION__, time_ns, cntr, timer_clk);
 
     return time_ns;
 }
 
-
-
 /*
  * ��ӡtimer��ؼĴ�����ֵ
  * @timer_info Ӳ����ʱ��
@@ -188,7 +193,7 @@ void timer_print_regs(timer_info_t *timer_info)
     unsigned int timer_reg_base = 0;
 
     timer_reg_base = timer_get_reg_base(timer_info->timer);
-    rt_kprintf("CNTR=0x%x, HRC=0x%x, LRC=0x%x, CTRL=0x%x\n",
+    printf("CNTR=0x%x, HRC=0x%x, LRC=0x%x, CTRL=0x%x\n",
               reg_read_32((volatile unsigned int *)(timer_reg_base + LS1C_PWM_CNTR)),
               reg_read_32((volatile unsigned int *)(timer_reg_base + LS1C_PWM_HRC)),
               reg_read_32((volatile unsigned int *)(timer_reg_base + LS1C_PWM_LRC)),
@@ -197,4 +202,100 @@ void timer_print_regs(timer_info_t *timer_info)
     return ;
 }
 
+/*
+ * ��ʱ���ж���
+ * @timer_info ��ʱ����Ϣ
+ */
+void timer_int_clr(timer_info_t *timer_info)
+{
+    unsigned int timer_reg_base = 0;        // �Ĵ�������ַ
+    unsigned int ctrl ;  
+    
+    // ����
+    if (NULL == timer_info)
+    {
+        return ;
+    }
+    timer_reg_base = timer_get_reg_base(timer_info->timer);     // ��ȡ�Ĵ�������ַ
+    ctrl = reg_read_32((volatile unsigned int *)(timer_reg_base + LS1C_PWM_CTRL));
+    ctrl = ctrl | (1<<LS1C_PWM_INT_SR) ;
+    reg_write_32(ctrl , (volatile unsigned int *)(timer_reg_base + LS1C_PWM_CTRL));
+    ctrl = ctrl & (~(1<<LS1C_PWM_INT_SR))  ;
+    reg_write_32(ctrl , (volatile unsigned int *)(timer_reg_base + LS1C_PWM_CTRL));
 
+    return ;
+}
+/*
+ * ��ʱ��������
+ * @timer_info ��ʱ����Ϣ
+ */
+void timer_cnt_clr(timer_info_t *timer_info)
+{
+    unsigned int timer_reg_base = 0;        // �Ĵ�������ַ
+    unsigned int ctrl ;  
+    
+    // ����
+    if (NULL == timer_info)
+    {
+        return ;
+    }
+    timer_reg_base = timer_get_reg_base(timer_info->timer);     // ��ȡ�Ĵ�������ַ
+    ctrl = reg_read_32((volatile unsigned int *)(timer_reg_base + LS1C_PWM_CTRL));
+    ctrl = ctrl | (1<<LS1C_PWM_CNTR_RST);
+    reg_write_32(ctrl , (volatile unsigned int *)(timer_reg_base + LS1C_PWM_CTRL));
+    ctrl = ctrl & (~(1<<LS1C_PWM_CNTR_RST)) ;
+    reg_write_32(ctrl , (volatile unsigned int *)(timer_reg_base + LS1C_PWM_CTRL));
+
+    return ;
+}
+
+/*
+ * ��ʼ����ʱ��������ʼ�ж϶�ʱ
+ * @timer_info ��ʱ���Ͷ�ʱʱ����Ϣ
+ * @hrc ���ж� lrc ���ж� Ϊ1�򿪣�Ϊ0�ر�
+*/
+void timer_int_init(timer_info_t *timer_info, int hrc, int lrc)
+{
+    unsigned int timer_reg_base = 0;        // �Ĵ�������ַ
+    unsigned long timer_clk = 0;            // Ӳ����ʱ����ʱ��
+    unsigned long h_value, l_value;
+    unsigned int ctrl = 0;                  // ���ƼĴ����еĿ�����Ϣ
+    
+    // ����
+    if (NULL == timer_info)
+    {
+        return ;
+    }
+
+    /*
+     * �Ѷ�ʱʱ�任��Ϊ��������ֵ
+     * ������ֵ = ��ʱ����ʱ�� * ��ʱʱ��(��λns) / 1000000000
+     * ��о1c�Ķ�ʱ��ʱ��ΪAPBʱ�ӣ��ﵽ126Mhz��
+     * Ϊ���������̷����������������ֶ��Ż�����ļ���ʽ��Ҳ���Բ��ø�������
+     */
+    timer_clk = clk_get_apb_rate();
+    l_value = (timer_clk / 1000000) * (timer_info->time_ns / 1000);     // ��1000000000���Ϊ1000000��1000
+    l_value = MIN(l_value, TIMER_COUNTER_MAX);
+    h_value = (timer_clk / 1000000) * (timer_info->time_h_ns / 1000);     // ��1000000000���Ϊ1000000��1000
+    h_value = MIN(h_value, l_value);
+
+    // ���ƼĴ�����Ϣ
+    ctrl = (lrc << LS1C_PWM_INT_LRC_EN)
+           | (hrc << LS1C_PWM_INT_HRC_EN)
+           | (0 << LS1C_PWM_CNTR_RST)
+           | (0 << LS1C_PWM_INT_SR)
+           | (1 << LS1C_PWM_INTEN)
+           | (1 << LS1C_PWM_SINGLE)
+           | (1 << LS1C_PWM_OE)
+           | (1 << LS1C_PWM_CNT_EN);
+
+    // ���ø����Ĵ���
+    timer_reg_base = timer_get_reg_base(timer_info->timer);     // ��ȡ�Ĵ�������ַ
+    reg_write_32(0,                     (volatile unsigned int *)(timer_reg_base + LS1C_PWM_HRC));
+    reg_write_32(l_value--,                 (volatile unsigned int *)(timer_reg_base + LS1C_PWM_LRC));
+    reg_write_32(h_value--,                 (volatile unsigned int *)(timer_reg_base + LS1C_PWM_HRC));
+    reg_write_32(0,                     (volatile unsigned int *)(timer_reg_base + LS1C_PWM_CNTR));
+    reg_write_32(ctrl,                  (volatile unsigned int *)(timer_reg_base + LS1C_PWM_CTRL));
+
+    return ;
+}
diff --git a/bsp/ls1cdev/libraries/ls1c_timer.h b/bsp/ls1cdev/libraries/ls1c_timer.h
index df38c705f5..9f3f86d5d5 100644
--- a/bsp/ls1cdev/libraries/ls1c_timer.h
+++ b/bsp/ls1cdev/libraries/ls1c_timer.h
@@ -1,3 +1,12 @@
+ /*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ *                             first version
+ */
 // Ӳ����ʱ��ͷ�ļ�
 
 
@@ -22,18 +31,16 @@ typedef enum
 typedef struct
 {
     ls1c_timer_t timer;                  // Ӳ����ʱ��
-    unsigned long time_ns;          // ��ʱʱ��
+    unsigned long time_ns;          // �Ͷ�ʱʱ��
+    unsigned long time_h_ns;          // �߶�ʱʱ��
 }timer_info_t;
 
-
-
 /*
  * ��ʼ����ʱ��������ʼ��ʱ
  * @timer_info ��ʱ���Ͷ�ʱʱ����Ϣ
  */
 void timer_init(timer_info_t *timer_info);
 
-
 /*
  * �ж�ָ����ʱ���Ƿ�ʱ
  * @timer_info ��ʱ��
@@ -41,15 +48,12 @@ void timer_init(timer_info_t *timer_info);
  */
 BOOL timer_is_time_out(timer_info_t *timer_info);
 
-
 /*
  * ֹͣ��ʱ��
  * @timer_info ��ʱ��
  */
 void timer_stop(timer_info_t *timer_info);
 
-
-
 /*
  * ��ȡ��ʱ���ӳ�ʼ�������ڵ�ʱ��(ʵ�ּ�ʱ����)����λns
  * @timer_info Ӳ����ʱ��
@@ -57,13 +61,29 @@ void timer_stop(timer_info_t *timer_info);
  */
 unsigned long timer_get_time_ns(timer_info_t *timer_info);
 
-
 /*
  * ��ӡtimer��ؼĴ�����ֵ
  * @timer_info Ӳ����ʱ��
  */
 void timer_print_regs(timer_info_t *timer_info);
 
+/*
+ * ��ʱ���ж���
+ * @timer_info ��ʱ����Ϣ
+ */
+void timer_int_clr(timer_info_t *timer_info);
 
+/*
+ * ��ʱ��������
+ * @timer_info ��ʱ����Ϣ
+ */
+void timer_cnt_clr(timer_info_t *timer_info);
+
+/*
+ * ��ʼ����ʱ��������ʼ�ж϶�ʱ
+ * @timer_info ��ʱ���Ͷ�ʱʱ����Ϣ
+ * @hrc ���ж� lrc ���ж� Ϊ1�򿪣�Ϊ0�ر�
+*/
+void timer_int_init(timer_info_t *timer_info, int hrc, int lrc);
 #endif
 
diff --git a/bsp/ls1cdev/libraries/ls1c_uart.c b/bsp/ls1cdev/libraries/ls1c_uart.c
index baa3b6e3ac..fac2010964 100644
--- a/bsp/ls1cdev/libraries/ls1c_uart.c
+++ b/bsp/ls1cdev/libraries/ls1c_uart.c
@@ -1,3 +1,12 @@
+ /*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ *                             first version
+ */
 // 串口相关源码
 
 #include <stdio.h>
diff --git a/bsp/ls1cdev/libraries/ls1c_uart.h b/bsp/ls1cdev/libraries/ls1c_uart.h
index 7d63033684..8d017dd767 100644
--- a/bsp/ls1cdev/libraries/ls1c_uart.h
+++ b/bsp/ls1cdev/libraries/ls1c_uart.h
@@ -1,3 +1,12 @@
+ /*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ *                             first version
+ */
 // 串口相关头文件
 
 
diff --git a/bsp/ls1cdev/libraries/ls1c_wdog.c b/bsp/ls1cdev/libraries/ls1c_wdog.c
new file mode 100644
index 0000000000..4034281d10
--- /dev/null
+++ b/bsp/ls1cdev/libraries/ls1c_wdog.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2019-05-06     sundm75       first version
+ */
+
+#include "ls1c.h"
+#include "ls1c_wdog.h"
+
+/*
+系统先配置看门狗使能位 WDT_EN;
+然后配置看门狗计数器的初始值 WDT_TIMER;
+当设置 WDT_SET 后，计数器开始减计数;
+当还没有减到 0 时，重置看门狗计数器，系统不会重启;
+当看门狗计数器减到 0 时，则系统重启。
+*/
+
+static unsigned int WDT_timer = 0;
+
+/* 暂时为空 */
+unsigned int Wdog_Init(void)              
+{
+    return 0;
+}
+
+/* 配置看门狗使能寄存器(WDT_EN) */
+unsigned int Wdog_Enable(void)       
+{
+    unsigned int ctrl;
+    ctrl = (WDT_EN);
+    ctrl |= 0x01;
+
+    WDT_EN = ctrl;
+    return 0;
+}
+
+/* 配置看门狗失能寄存器(WDT_EN) */
+unsigned int Wdog_Disable(void)           
+{
+    unsigned int ctrl;
+    ctrl = (WDT_EN);
+    ctrl &= ~0x01;
+    WDT_EN = ctrl;
+    return 0;
+}
+
+/* 配置看门狗设置寄存器 (WDT_SET) */
+unsigned int Wdog_Set(void)               
+{
+    unsigned int ctrl;
+    ctrl = (WDT_SET);
+    ctrl |= 0x01;
+    WDT_SET = ctrl;
+    return 0;
+}
+
+/* 配置看门狗设置寄存器 (WDT_SET) */
+unsigned int Wdog_Reset(void)             
+{
+    unsigned int ctrl;
+    ctrl = (WDT_SET);
+    ctrl &= ~0x01;
+    WDT_SET = ctrl;
+    return 0;
+}
+
+/* 获得看门狗计数器(WDT_timer) 的值*/
+unsigned int Wdog_GetValue(void)          
+{
+    unsigned int cnt;
+    cnt = (WDT_TIMER);
+    return cnt;
+}
+
+/* 配置看门狗计数器(WDT_timer)的值*/
+unsigned int Wdog_LoadValue(unsigned int cnt)    
+{
+    WDT_TIMER = cnt;
+    WDT_timer = cnt;
+    return 0;
+}
+
+/* 获得看门狗计数器设定值 */
+unsigned int Wdog_GetPreValue(void)    
+{
+    return WDT_timer;
+}
diff --git a/bsp/ls1cdev/libraries/ls1c_wdog.h b/bsp/ls1cdev/libraries/ls1c_wdog.h
new file mode 100644
index 0000000000..a4717eedbf
--- /dev/null
+++ b/bsp/ls1cdev/libraries/ls1c_wdog.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2006-2018, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2019-05-06     sundm75       first version
+ */
+
+#ifndef _LS1C_WDOG_H_
+#define _LS1C_WDOG_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+unsigned int Wdog_Init(void);                   // 暂时为空
+unsigned int Wdog_Enable(void);                 // 看门狗使能寄存器（WDT_EN）
+unsigned int Wdog_Disable(void);                // 看门狗失能寄存器（WDT_EN）
+unsigned int Wdog_Set(void);                    // 看门狗设置寄存器 (WDT_SET)
+unsigned int Wdog_Reset(void);                  // 看门狗设置寄存器 (WDT_SET)
+unsigned int Wdog_GetValue(void);               // 获得看门狗计数器（WDT_timer）
+unsigned int Wdog_LoadValue(unsigned int cnt);  // 设置看门狗计数器（WDT_timer）
+unsigned int Wdog_GetPreValue(void);            // 获得看门狗计数器设定值
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _LS1C_WDOG_H_ */
+