[apollo2] auto & manual formatted

24 files changed, 85 insertions, 421 deletions

diff --git a/bsp/apollo2/board/adc.c b/bsp/apollo2/board/adc.c
index a0044bcc37..26b926a209 100644
--- a/bsp/apollo2/board/adc.c
+++ b/bsp/apollo2/board/adc.c
@@ -1,21 +1,7 @@
 /*
- * File      : adc.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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
@@ -32,15 +18,15 @@
 struct rt_messagequeue adcbat_mq;
 
 #define BATTERY_GPIO            35                        /* Battery */
-#define BATTERY_ADC_PIN         AM_HAL_PIN_35_ADCSE7 
-#define BATTERY_ADC_CHANNEL     AM_HAL_ADC_SLOT_CHSEL_SE7 /* BATTERY ADC�ɼ�ͨ�� */
-#define BATTERY_ADC_CHANNELNUM  7                         /* BATTERY ADC�ɼ�ͨ���� */
+#define BATTERY_ADC_PIN         AM_HAL_PIN_35_ADCSE7
+#define BATTERY_ADC_CHANNEL     AM_HAL_ADC_SLOT_CHSEL_SE7 /* BATTERY ADC采集通道 */
+#define BATTERY_ADC_CHANNELNUM  7                         /* BATTERY ADC采集通道号 */
 
-#define ADC_CTIMER_NUM          3                         /* ADCʹ�ö�ʱ�� */
+#define ADC_CTIMER_NUM          3                         /* ADC使用定时器 */
 #define ADC_CTIMER_COUNT        (2048/512 - 1)
 
-#define ADC_CHANNEL_NUM         1                         /* ADC�ɼ�ͨ������ */
-#define ADC_SAMPLE_NUM          8                         /* ADC�������� */
+#define ADC_CHANNEL_NUM         1                         /* ADC采集通道个数 */
+#define ADC_SAMPLE_NUM          8                         /* ADC采样个数 */
 
 rt_uint8_t bat_adc_cnt = 0;
 static rt_uint8_t am_adcbat_buffer_pool[256];
@@ -52,7 +38,7 @@ rt_uint8_t am_adc_data_get(rt_uint8_t channel, rt_int16_t *buff, rt_uint16_t siz
 
     if (channel == BATTERY_ADC_CHANNELNUM)
     {
-        /* wait adc message forever */	
+        /* wait adc message forever */
         rt_mq_recv(&adcbat_mq, adc_bufftemp, 32, RT_WAITING_FOREVER);
     }
 
diff --git a/bsp/apollo2/board/adc.h b/bsp/apollo2/board/adc.h
index 4e4396bae3..552b704ab8 100644
--- a/bsp/apollo2/board/adc.h
+++ b/bsp/apollo2/board/adc.h
@@ -1,21 +1,7 @@
 /*
- * File      : adc.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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/apollo2/board/board.c b/bsp/apollo2/board/board.c
index 23bc332af4..907455a998 100644
--- a/bsp/apollo2/board/board.c
+++ b/bsp/apollo2/board/board.c
@@ -1,21 +1,7 @@
 /*
- * File      : board.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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/apollo2/board/board.h b/bsp/apollo2/board/board.h
index 67dfdd5e39..ef21bdb05f 100644
--- a/bsp/apollo2/board/board.h
+++ b/bsp/apollo2/board/board.h
@@ -1,21 +1,7 @@
 /*
- * File      : board.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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/apollo2/board/flash.c b/bsp/apollo2/board/flash.c
index ae224e85a1..2d28920daf 100644
--- a/bsp/apollo2/board/flash.c
+++ b/bsp/apollo2/board/flash.c
@@ -1,21 +1,7 @@
 /*
- * File      : flash.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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
@@ -77,7 +63,7 @@ static rt_err_t rt_flash_control(rt_device_t dev, int cmd, void *args)
                 ui32CurrentPage =  AM_HAL_FLASH_ADDR2PAGE(erase->addrstart);
                 ui32CurrentBlock = AM_HAL_FLASH_ADDR2INST(erase->addrstart);
 
-                am_hal_flash_page_erase(AM_HAL_FLASH_PROGRAM_KEY, ui32CurrentBlock, ui32CurrentPage); //��������������
+                am_hal_flash_page_erase(AM_HAL_FLASH_PROGRAM_KEY, ui32CurrentBlock, ui32CurrentPage); //单扇区擦除命令
                 erase->addrstart += 8192;
             }
         }
diff --git a/bsp/apollo2/board/flash.h b/bsp/apollo2/board/flash.h
index c9c8f9492c..b628983ce3 100644
--- a/bsp/apollo2/board/flash.h
+++ b/bsp/apollo2/board/flash.h
@@ -1,21 +1,7 @@
 /*
- * File      : flash.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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/apollo2/board/gpio.c b/bsp/apollo2/board/gpio.c
index c985e0f2a7..edfaef1431 100644
--- a/bsp/apollo2/board/gpio.c
+++ b/bsp/apollo2/board/gpio.c
@@ -1,21 +1,7 @@
 /*
- * File      : gpio.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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
@@ -70,7 +56,7 @@ void am_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value)
     else if (value == PIN_HIGH)
     {
         am_hal_gpio_out_bit_set(pin);
-    }    
+    }
 }
 
 int am_pin_read(rt_device_t dev, rt_base_t pin)
diff --git a/bsp/apollo2/board/gpio.h b/bsp/apollo2/board/gpio.h
index 1ea3c42013..495fde6f6e 100644
--- a/bsp/apollo2/board/gpio.h
+++ b/bsp/apollo2/board/gpio.h
@@ -1,27 +1,13 @@
 /*
- * File      : gpio.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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
  * 2017-09-16     Haley        the first version
  */
- 
+
 #ifndef __GPIO_H
 #define __GPIO_H
 
diff --git a/bsp/apollo2/board/i2c.c b/bsp/apollo2/board/i2c.c
index 6d1bcdc0c0..0a1311d7e6 100644
--- a/bsp/apollo2/board/i2c.c
+++ b/bsp/apollo2/board/i2c.c
@@ -1,21 +1,7 @@
 /*
- * File      :_i2c.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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
@@ -133,7 +119,7 @@ static const struct rt_i2c_bus_device_ops am_i2c_ops =
 };
 
 #ifdef RT_USING_I2C0
-static struct am_i2c_bus am_i2c_bus_0 = 
+static struct am_i2c_bus am_i2c_bus_0 =
 {
     {0},
     AM_I2C0_IOM_INST
@@ -141,7 +127,7 @@ static struct am_i2c_bus am_i2c_bus_0 =
 #endif
 
 #ifdef RT_USING_I2C1
-static struct am_i2c_bus am_i2c_bus_1 = 
+static struct am_i2c_bus am_i2c_bus_1 =
 {
     {1},
     AM_I2C1_IOM_INST
@@ -149,7 +135,7 @@ static struct am_i2c_bus am_i2c_bus_1 =
 #endif
 
 #ifdef RT_USING_I2C2
-static struct am_i2c_bus am_i2c_bus_2 = 
+static struct am_i2c_bus am_i2c_bus_2 =
 {
     {2},
     AM_I2C2_IOM_INST
@@ -157,7 +143,7 @@ static struct am_i2c_bus am_i2c_bus_2 =
 #endif
 
 #ifdef RT_USING_I2C3
-static struct am_i2c_bus am_i2c_bus_3 = 
+static struct am_i2c_bus am_i2c_bus_3 =
 {
     {3},
     AM_I2C3_IOM_INST
@@ -165,7 +151,7 @@ static struct am_i2c_bus am_i2c_bus_3 =
 #endif
 
 #ifdef RT_USING_I2C4
-static struct am_i2c_bus am_i2c_bus_4 = 
+static struct am_i2c_bus am_i2c_bus_4 =
 {
     {4},
     AM_I2C4_IOM_INST
diff --git a/bsp/apollo2/board/i2c.h b/bsp/apollo2/board/i2c.h
index 004d5eb3c1..b0a24b51cd 100644
--- a/bsp/apollo2/board/i2c.h
+++ b/bsp/apollo2/board/i2c.h
@@ -1,21 +1,7 @@
 /*
- * File      : i2c.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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/apollo2/board/led.c b/bsp/apollo2/board/led.c
index d8eb2fb753..5364667679 100644
--- a/bsp/apollo2/board/led.c
+++ b/bsp/apollo2/board/led.c
@@ -1,21 +1,7 @@
 /*
- * File      :_led.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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/apollo2/board/led.h b/bsp/apollo2/board/led.h
index c6f6bd8728..76832e32b9 100644
--- a/bsp/apollo2/board/led.h
+++ b/bsp/apollo2/board/led.h
@@ -1,21 +1,7 @@
 /*
- * File      : led.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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/apollo2/board/pdm.c b/bsp/apollo2/board/pdm.c
index 3eb46f7411..f1b719c6d1 100644
--- a/bsp/apollo2/board/pdm.c
+++ b/bsp/apollo2/board/pdm.c
@@ -1,21 +1,7 @@
 /*
- * File      :_pdm.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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
@@ -66,7 +52,7 @@ rt_uint8_t am_pdm_data_get(rt_uint8_t *buff, rt_uint16_t size)
 {
     rt_uint8_t pdm_rbufftemp[340];
 
-    /* wait pdm message forever */	
+    /* wait pdm message forever */
     rt_mq_recv(&pdm_mq, pdm_rbufftemp, 340, RT_WAITING_FOREVER);
 
     /* copy the data */
diff --git a/bsp/apollo2/board/pdm.h b/bsp/apollo2/board/pdm.h
index 43ed075da8..2975c8aad1 100644
--- a/bsp/apollo2/board/pdm.h
+++ b/bsp/apollo2/board/pdm.h
@@ -1,21 +1,7 @@
 /*
- * File      : pdm.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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/apollo2/board/pwm.c b/bsp/apollo2/board/pwm.c
index 7591291eac..8b23a8c290 100644
--- a/bsp/apollo2/board/pwm.c
+++ b/bsp/apollo2/board/pwm.c
@@ -1,21 +1,7 @@
 /*
- * File      :_pwm.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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/apollo2/board/pwm.h b/bsp/apollo2/board/pwm.h
index 53a6571264..973848c6f6 100644
--- a/bsp/apollo2/board/pwm.h
+++ b/bsp/apollo2/board/pwm.h
@@ -1,21 +1,7 @@
 /*
- * File      : pwm.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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/apollo2/board/rtc.c b/bsp/apollo2/board/rtc.c
index dbae7cf3c1..5c8fbb13fe 100644
--- a/bsp/apollo2/board/rtc.c
+++ b/bsp/apollo2/board/rtc.c
@@ -1,21 +1,7 @@
 /*
- * File      :_rtc.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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
@@ -116,7 +102,7 @@ int rt_hw_rtc_init(void)
     /* Select LFRC for RTC clock source */
     am_hal_rtc_osc_select(AM_HAL_RTC_OSC_LFRC);
 #endif
-  
+
 #if RTC_CLK_SRC == XT
     /* Enable the XT for the RTC */
     am_hal_clkgen_osc_start(AM_HAL_CLKGEN_OSC_XT);
@@ -129,12 +115,12 @@ int rt_hw_rtc_init(void)
     am_hal_rtc_osc_enable();
 
     /* register rtc device */
-    rtc.type	= RT_Device_Class_RTC;
-    rtc.init 	= RT_NULL;
-    rtc.open 	= rt_rtc_open;
-    rtc.close	= RT_NULL;
-    rtc.read 	= rt_rtc_read;
-    rtc.write	= RT_NULL;
+    rtc.type    = RT_Device_Class_RTC;
+    rtc.init    = RT_NULL;
+    rtc.open    = rt_rtc_open;
+    rtc.close   = RT_NULL;
+    rtc.read    = rt_rtc_read;
+    rtc.write   = RT_NULL;
     rtc.control = rt_rtc_control;
 
     /* no private */
diff --git a/bsp/apollo2/board/rtc.h b/bsp/apollo2/board/rtc.h
index 83087bc47e..a4a7fbd5e7 100644
--- a/bsp/apollo2/board/rtc.h
+++ b/bsp/apollo2/board/rtc.h
@@ -1,27 +1,13 @@
 /*
- * File      : rtc.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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
  * 2017-09-14     Haley        the first version
  */
- 
+
 #ifndef __RTC_H
 #define __RTC_H
 
diff --git a/bsp/apollo2/board/smbus.c b/bsp/apollo2/board/smbus.c
index ae41f9fac6..7437b68ffa 100644
--- a/bsp/apollo2/board/smbus.c
+++ b/bsp/apollo2/board/smbus.c
@@ -1,21 +1,7 @@
 /*
- * File      : smbus.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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
@@ -42,8 +28,8 @@
 #define mSDA_OUT()        am_hal_gpio_pin_config(SMBUS_GPIO_SDA, AM_HAL_GPIO_OUTPUT)                      /* Set SDA as Output */
 #define mSCL_OUT()        am_hal_gpio_pin_config(SMBUS_GPIO_SCL, AM_HAL_GPIO_OUTPUT)                      /* Set SCL as Output */
 
-#define ACK	      0
-#define	NACK      1
+#define ACK       0
+#define NACK      1
 
 /* SCL keep time */
 static void keep_delay(void)
@@ -60,7 +46,7 @@ static void few_delay(void)
 }
 
 static rt_uint8_t am_smbus_send_bit(rt_uint8_t send_bit)
-{       
+{
     mSDA_OUT();
     few_delay();
 
@@ -128,7 +114,7 @@ static void am_smbus_stop_bit(void)
 
 static rt_uint8_t am_smbus_tx_byte(rt_uint8_t tx_byte)
 {
-    int	i;
+    int i;
     rt_uint8_t ack_bit;
     rt_uint8_t bit_out;
 
@@ -176,7 +162,7 @@ rt_uint8_t am_smbus_tx_then_tx(rt_uint8_t SlaveAddress, rt_uint8_t command, rt_u
     int i;
 
     am_smbus_start_bit();                      /* Start condition */
-		
+
     if(am_smbus_tx_byte(SlaveAddress))         /* Send SlaveAddress and write */
         return 1;
 
diff --git a/bsp/apollo2/board/smbus.h b/bsp/apollo2/board/smbus.h
index 6f518b8f9e..62f8afc1b9 100644
--- a/bsp/apollo2/board/smbus.h
+++ b/bsp/apollo2/board/smbus.h
@@ -1,21 +1,7 @@
 /*
- * File      : smbus.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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/apollo2/board/spi.c b/bsp/apollo2/board/spi.c
index 783f359af0..f59610975f 100644
--- a/bsp/apollo2/board/spi.c
+++ b/bsp/apollo2/board/spi.c
@@ -1,21 +1,7 @@
 /*
- * File      : spi.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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
@@ -180,7 +166,7 @@ static rt_uint32_t xfer(struct rt_spi_device *device, struct rt_spi_message* mes
         am_hal_gpio_out_bit_clear(am_spi_cs->chip_select);
     }
 
-    // ������
+    // 读数据
     if (recv_ptr != RT_NULL)
     {
         while (u32BytesRemaining)
@@ -213,7 +199,7 @@ static rt_uint32_t xfer(struct rt_spi_device *device, struct rt_spi_message* mes
         }
     }
 
-    // ���
+    // 写数据
     else
     {
         while (u32BytesRemaining)
@@ -225,7 +211,7 @@ static rt_uint32_t xfer(struct rt_spi_device *device, struct rt_spi_message* mes
                 u32TransferSize = 64;
                 am_hal_iom_spi_write(am_spi_bus->u32Module, am_spi_cs->chip_select,
                                     (uint32_t *)send_ptr, u32TransferSize, AM_HAL_IOM_RAW);
-        
+
             }
             else
             {
@@ -257,7 +243,7 @@ static const struct rt_spi_ops am_spi_ops =
 };
 
 #ifdef RT_USING_SPI0
-static struct am_spi_bus am_spi_bus_0 = 
+static struct am_spi_bus am_spi_bus_0 =
 {
     {0},
     AM_SPI0_IOM_INST
diff --git a/bsp/apollo2/board/spi.h b/bsp/apollo2/board/spi.h
index d88bb587e9..4c23f54621 100644
--- a/bsp/apollo2/board/spi.h
+++ b/bsp/apollo2/board/spi.h
@@ -1,21 +1,7 @@
 /*
- * File      : spi.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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
@@ -27,7 +13,7 @@
 
 #include <rtthread.h>
 
-/* Ƭѡ�źŽṹ���� */
+/* 片选信号结构声明 */
 struct am_spi_cs
 {
     rt_uint32_t chip_select;
diff --git a/bsp/apollo2/board/uart.c b/bsp/apollo2/board/uart.c
index fc3884bf2d..ec97599b80 100644
--- a/bsp/apollo2/board/uart.c
+++ b/bsp/apollo2/board/uart.c
@@ -1,21 +1,7 @@
 /*
- * File      : uart.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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
@@ -164,11 +150,11 @@ static rt_err_t am_configure(struct rt_serial_device *serial, struct serial_conf
     else if (cfg->stop_bits == STOP_BITS_2)
         uart_cfg.bTwoStopBits = true;
 
-    if (cfg->parity == PARITY_NONE)    
+    if (cfg->parity == PARITY_NONE)
         uart_cfg.ui32Parity = AM_HAL_UART_PARITY_NONE;
-    else if (cfg->parity == PARITY_ODD)    
+    else if (cfg->parity == PARITY_ODD)
         uart_cfg.ui32Parity = AM_HAL_UART_PARITY_ODD;
-    else if (cfg->parity == PARITY_EVEN)    
+    else if (cfg->parity == PARITY_EVEN)
         uart_cfg.ui32Parity = AM_HAL_UART_PARITY_EVEN;
 
     uart_cfg.ui32FlowCtrl = AM_HAL_UART_FLOW_CTRL_NONE;
diff --git a/bsp/apollo2/board/uart.h b/bsp/apollo2/board/uart.h
index 8e92068d5d..d858d68b21 100644
--- a/bsp/apollo2/board/uart.h
+++ b/bsp/apollo2/board/uart.h
@@ -1,21 +1,7 @@
 /*
- * File      : uart.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ * Copyright (c) 2006-2021, 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