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-rw-r--r--bsp/apollo2/applications/main.c (renamed from bsp/apollo2/applications/application.c)48
-rw-r--r--bsp/apollo2/applications/startup.c93
-rw-r--r--bsp/apollo2/board/gpio.c99
-rw-r--r--bsp/apollo2/board/gpio.h30
-rw-r--r--bsp/apollo2/board/hw_led.c302
-rw-r--r--bsp/apollo2/board/hw_led.h60
-rw-r--r--bsp/apollo2/board/hw_uart.h23
-rw-r--r--bsp/apollo2/board/led.c152
-rw-r--r--bsp/apollo2/board/led.h38
-rw-r--r--bsp/apollo2/board/uart.c (renamed from bsp/apollo2/board/hw_uart.c)290
-rw-r--r--bsp/apollo2/board/uart.h30
11 files changed, 515 insertions, 650 deletions
diff --git a/bsp/apollo2/applications/application.c b/bsp/apollo2/applications/main.c
index 80f0963202..dab3fd123f 100644
--- a/bsp/apollo2/applications/application.c
+++ b/bsp/apollo2/applications/main.c
@@ -1,22 +1,27 @@
/*
* File : application.c
* This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2015, RT-Thread Development Team
+ * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
*
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
+ * 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.
*
* Change Logs:
* Date Author Notes
* 2017-09-14 Haley the first version
*/
-/**
- * @addtogroup APOLLO2
- */
-/*@{*/
-
#include <rtthread.h>
#include <stdint.h>
#ifdef RT_USING_FINSH
@@ -24,9 +29,8 @@
#include <shell.h>
#endif
-#include "hw_led.h"
+#include "led.h"
-ALIGN(RT_ALIGN_SIZE)
static rt_uint8_t led_stack[ 512 ];
static struct rt_thread led_thread;
@@ -34,9 +38,6 @@ static void led_thread_entry(void* parameter)
{
unsigned int count=0;
- rt_hw_led_init(0);
- rt_hw_led_init(1);
-
while (1)
{
/* led1 on */
@@ -56,18 +57,8 @@ static void led_thread_entry(void* parameter)
}
}
-void rt_init_thread_entry(void* parameter)
+int main(void)
{
- #ifdef RT_USING_COMPONENTS_INIT
- /* initialization RT-Thread Components */
- rt_components_init();
- #endif
-}
-
-int rt_application_init(void)
-{
- rt_thread_t init_thread;
-
rt_err_t result;
/* init led thread */
@@ -77,17 +68,12 @@ int rt_application_init(void)
RT_NULL,
(rt_uint8_t*)&led_stack[0],
sizeof(led_stack),
- 7,
+ RT_THREAD_PRIORITY_MAX/3,
5);
if (result == RT_EOK)
{
rt_thread_startup(&led_thread);
}
-
- init_thread = rt_thread_create("init", rt_init_thread_entry, RT_NULL, 1024,
- RT_THREAD_PRIORITY_MAX / 3, 20);
- if (init_thread != RT_NULL)
- rt_thread_startup(init_thread);
return 0;
}
diff --git a/bsp/apollo2/applications/startup.c b/bsp/apollo2/applications/startup.c
deleted file mode 100644
index 5459c51f46..0000000000
--- a/bsp/apollo2/applications/startup.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * File : startup.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2015, RT-Thread Develop Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://openlab.rt-thread.com/license/LICENSE
- *
- * Change Logs:
- * Date Author Notes
- * 2017-09-11 Haley the first version
- */
-
-#include <rthw.h>
-#include <rtthread.h>
-
-#include "board.h"
-
-/**
- * @addtogroup Apollo2
- */
-
-/*@{*/
-
-extern int rt_application_init(void);
-
-#ifdef __CC_ARM
-extern int Image$$RW_IRAM1$$ZI$$Limit;
-#define AM_SRAM_BEGIN (&Image$$RW_IRAM1$$ZI$$Limit)
-#elif __ICCARM__
-#pragma section="HEAP"
-#define AM_SRAM_BEGIN (__segment_end("HEAP"))
-#else
-extern int __bss_end;
-#define NRF_SRAM_BEGIN (&__bss_end)
-#endif
-
-/**
- * This function will startup RT-Thread RTOS.
- */
-void rtthread_startup(void)
-{
- /* init board */
- rt_hw_board_init();
-
- /* show version */
- rt_show_version();
-
- /* init tick */
- rt_system_tick_init();
-
- /* init kernel object */
- rt_system_object_init();
-
- /* init timer system */
- rt_system_timer_init();
-
-#ifdef RT_USING_HEAP
- rt_system_heap_init((void*)AM_SRAM_BEGIN, (void*)AM_SRAM_END);
-#endif
-
- /* init scheduler system */
- rt_system_scheduler_init();
-
- /* init application */
- rt_application_init();
-
- /* init timer thread */
- rt_system_timer_thread_init();
-
- /* init idle thread */
- rt_thread_idle_init();
-
- /* start scheduler */
- rt_system_scheduler_start();
-
- /* never reach here */
- return ;
-}
-
-int main(void)
-{
- /* disable interrupt first */
- // rt_hw_interrupt_disable();
-
- /* startup RT-Thread RTOS */
- rtthread_startup();
-
- return 0;
-}
-
-/*@}*/
diff --git a/bsp/apollo2/board/gpio.c b/bsp/apollo2/board/gpio.c
new file mode 100644
index 0000000000..5c5b5b506c
--- /dev/null
+++ b/bsp/apollo2/board/gpio.c
@@ -0,0 +1,99 @@
+/*
+ * File : gpio.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2017, 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.
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2017-09-16 Haley the first version
+ */
+
+#include <rtthread.h>
+#include <rtdevice.h>
+#include "am_mcu_apollo.h"
+
+#ifdef RT_USING_PIN
+
+void am_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode)
+{
+ if (mode == PIN_MODE_OUTPUT)
+ {
+ /* output setting */
+ am_hal_gpio_pin_config(pin, AM_HAL_GPIO_OUTPUT);
+ }
+ else if (mode == PIN_MODE_INPUT)
+ {
+ /* input setting: not pull. */
+ am_hal_gpio_pin_config(pin, AM_HAL_GPIO_INPUT);
+ }
+ else if (mode == PIN_MODE_INPUT_PULLUP)
+ {
+ /* input setting: pull up. */
+ am_hal_gpio_pin_config(pin, AM_HAL_GPIO_OPENDRAIN);
+ }
+ else
+ {
+ /* input setting:default. */
+ am_hal_gpio_pin_config(pin, AM_HAL_GPIO_INPUT);
+ }
+}
+
+void am_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value)
+{
+ if (value == PIN_LOW)
+ {
+ am_hal_gpio_out_bit_clear(pin);
+ }
+ else
+ {
+ am_hal_gpio_out_bit_set(pin);
+ }
+}
+
+int am_pin_read(rt_device_t dev, rt_base_t pin)
+{
+ int value = PIN_LOW;
+
+ if (am_hal_gpio_input_bit_read(pin) == 0)
+ {
+ value = PIN_LOW;
+ }
+ else
+ {
+ value = PIN_HIGH;
+ }
+
+ return value;
+}
+
+const static struct rt_pin_ops _am_pin_ops =
+{
+ am_pin_mode,
+ am_pin_write,
+ am_pin_read,
+};
+
+int hw_pin_init(void)
+{
+ rt_device_pin_register("pin", &_am_pin_ops, RT_NULL);
+ return 0;
+}
+
+INIT_BOARD_EXPORT(hw_pin_init);
+#endif
+
+/*@}*/
diff --git a/bsp/apollo2/board/gpio.h b/bsp/apollo2/board/gpio.h
new file mode 100644
index 0000000000..455c262224
--- /dev/null
+++ b/bsp/apollo2/board/gpio.h
@@ -0,0 +1,30 @@
+/*
+ * File : gpio.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2017, 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.
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2017-09-16 Haley the first version
+ */
+
+#ifndef __GPIO_H
+#define __GPIO_H
+
+int hw_pin_init(void);
+
+#endif // __GPIO_H
diff --git a/bsp/apollo2/board/hw_led.c b/bsp/apollo2/board/hw_led.c
deleted file mode 100644
index 71f6c47db5..0000000000
--- a/bsp/apollo2/board/hw_led.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- * File : hw_led.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2017, RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date Author Notes
- * 2017-09-14 Haley the first version
- */
-
-#include <rtthread.h>
-#include "am_mcu_apollo.h"
-#include "hw_led.h"
-
-#define AM_GPIO_LED0 46
-#define AM_GPIO_LED1 47
-#define AM_GPIO_LED2 48
-#define AM_GPIO_LED3 49
-
-#define AM_NUM_LEDS 4
-
-rt_hw_led_t am_psLEDs[AM_NUM_LEDS] =
-{
- {AM_GPIO_LED0, AM_LED_ON_LOW | AM_LED_POL_DIRECT_DRIVE_M},
- {AM_GPIO_LED1, AM_LED_ON_LOW | AM_LED_POL_DIRECT_DRIVE_M},
- {AM_GPIO_LED2, AM_LED_ON_LOW | AM_LED_POL_DIRECT_DRIVE_M},
- {AM_GPIO_LED3, AM_LED_ON_LOW | AM_LED_POL_DIRECT_DRIVE_M},
-};
-
-/**
- * @brief Configures the necessary pins for an array of LEDs
- *
- * @param LEDNum is the LED number.
- *
- * This function configures a GPIO to drive an LED in a low-power way.
- *
- * @return None.
- */
-void rt_hw_led_init(rt_uint32_t LEDNum)
-{
- rt_hw_led_t *psLED = am_psLEDs + LEDNum;
-
- /* Handle Direct Drive Versus 3-State (with pull-up or no buffer) */
- if ( AM_LED_POL_DIRECT_DRIVE_M & psLED->Polarity )
- {
- /* Configure the pin as a push-pull GPIO output */
- am_hal_gpio_pin_config(psLED->GPIONumber, AM_HAL_GPIO_OUTPUT);
-
- /* Enable the output driver, and set the output value to the LEDs "ON" state */
- am_hal_gpio_out_enable_bit_set(psLED->GPIONumber);
- am_hal_gpio_out_bit_replace(psLED->GPIONumber,
- psLED->Polarity &
- AM_LED_POL_DIRECT_DRIVE_M);
- }
- else
- {
- /* Configure the pin as a tri-state GPIO */
- am_hal_gpio_pin_config(psLED->GPIONumber, AM_HAL_GPIO_3STATE);
-
- /* Disable the output driver, and set the output value to the LEDs "ON" state */
- am_hal_gpio_out_enable_bit_clear(psLED->GPIONumber);
- am_hal_gpio_out_bit_replace(psLED->GPIONumber,
- psLED->Polarity &
- AM_LED_POL_DIRECT_DRIVE_M );
- }
-}
-
-/**
- * @brief Configures the necessary pins for an array of LEDs
- *
- * @param NumLEDs is the total number of LEDs in the array.
- *
- * This function configures the GPIOs for an array of LEDs.
- *
- * @return None.
- */
-void rt_hw_led_array_init(rt_uint32_t NumLEDs)
-{
- /* Loop through the list of LEDs, configuring each one individually */
- for ( int i = 0; i < NumLEDs; i++ )
- {
- rt_hw_led_init(i);
- }
-}
-
-/**
- * @brief Disables an array of LEDs
- *
- * @param NumLEDs is the total number of LEDs in the array.
- *
- * This function disables the GPIOs for an array of LEDs.
- *
- * @return None.
- */
-void rt_hw_led_array_disable(rt_uint32_t NumLEDs)
-{
- rt_hw_led_t *psLEDs = am_psLEDs;
-
- /* Loop through the list of LEDs, configuring each one individually */
- for ( int i = 0; i < NumLEDs; i++ )
- {
- am_hal_gpio_pin_config((psLEDs + i)->GPIONumber, AM_HAL_GPIO_DISABLE);
- }
-}
-
-/**
- * @brief Turns on the requested LED.
- *
- * @param LEDNum is the LED number for the light to turn on.
- *
- * This function turns on a single LED.
- *
- * @return None.
- */
-void rt_hw_led_on(rt_uint32_t LEDNum)
-{
- rt_hw_led_t *psLEDs = am_psLEDs;
-
- /* Handle Direct Drive Versus 3-State (with pull-up or no buffer) */
- if ( AM_LED_POL_DIRECT_DRIVE_M & psLEDs[LEDNum].Polarity )
- {
- /* Set the output to the correct state for the LED */
- am_hal_gpio_out_bit_replace(psLEDs[LEDNum].GPIONumber,
- psLEDs[LEDNum].Polarity &
- AM_LED_POL_POLARITY_M );
- }
- else
- {
- /* Turn on the output driver for the LED */
- am_hal_gpio_out_enable_bit_set(psLEDs[LEDNum].GPIONumber);
- }
-}
-
-/**
- * @brief Turns off the requested LED.
- *
- * @param LEDNum is the LED number for the light to turn off.
- *
- * This function turns off a single LED.
- *
- * @return None.
- */
-void rt_hw_led_off(rt_uint32_t LEDNum)
-{
- rt_hw_led_t *psLEDs = am_psLEDs;
-
- /* Handle Direct Drive Versus 3-State (with pull-up or no buffer) */
- if ( AM_LED_POL_DIRECT_DRIVE_M & psLEDs[LEDNum].Polarity )
- {
- /* Set the output to the correct state for the LED */
- am_hal_gpio_out_bit_replace(psLEDs[LEDNum].GPIONumber,
- !(psLEDs[LEDNum].Polarity &
- AM_LED_POL_POLARITY_M) );
- }
- else
- {
- /* Turn off the output driver for the LED */
- am_hal_gpio_out_enable_bit_clear(psLEDs[LEDNum].GPIONumber);
- }
-}
-
-/**
- * @brief Toggles the requested LED.
- *
- * @param LEDNum is the LED number for the light to toggle.
- *
- * This function toggles a single LED.
- *
- * @return None.
- */
-void rt_hw_led_toggle(rt_uint32_t LEDNum)
-{
- rt_hw_led_t *psLEDs = am_psLEDs;
-
- /* Handle Direct Drive Versus 3-State (with pull-up or no buffer) */
- if ( AM_LED_POL_DIRECT_DRIVE_M & psLEDs[LEDNum].Polarity )
- {
- am_hal_gpio_out_bit_toggle(psLEDs[LEDNum].GPIONumber);
- }
- else
- {
- /* Check to see if the LED pin is enabled */
- if ( am_hal_gpio_out_enable_bit_get(psLEDs[LEDNum].GPIONumber) )
- {
- /* If it was enabled, turn if off */
- am_hal_gpio_out_enable_bit_clear(psLEDs[LEDNum].GPIONumber);
- }
- else
- {
- /* If it was not enabled, turn if on */
- am_hal_gpio_out_enable_bit_set(psLEDs[LEDNum].GPIONumber);
- }
- }
-}
-
-/**
- * @brief Gets the state of the requested LED.
- *
- * @param LEDNum is the LED to check.
- *
- * This function checks the state of a single LED.
- *
- * @return 1(true) if the LED is on.
- */
-int rt_hw_led_get(rt_uint32_t LEDNum)
-{
- rt_hw_led_t *psLEDs = am_psLEDs;
-
- /* Handle Direct Drive Versus 3-State (with pull-up or no buffer) */
- if ( AM_LED_POL_DIRECT_DRIVE_M & psLEDs[LEDNum].Polarity )
- {
- /* Mask to the GPIO bit position for this GPIO number */
- uint64_t ui64Mask = 0x01l << psLEDs[LEDNum].GPIONumber;
-
- /* Extract the state of this bit and return it */
- return !!(am_hal_gpio_input_read() & ui64Mask);
- }
- else
- {
- return am_hal_gpio_out_enable_bit_get(
- psLEDs[LEDNum].GPIONumber);
- }
-}
-
-/**
- * @brief Display a binary value using LEDs.
- *
- * @param NumLEDs is the number of LEDs in the array.
- * @param Value is the value to display on the LEDs.
- *
- * This function displays a value in binary across an array of LEDs.
- *
- * @return None.
- */
-void rt_hw_led_array_out(rt_uint32_t NumLEDs, rt_uint32_t Value)
-{
- for ( int i = 0; i < NumLEDs; i++ )
- {
- if ( Value & (1 << i) )
- {
- rt_hw_led_on(i);
- }
- else
- {
- rt_hw_led_off(i);
- }
- }
-}
-
-#ifdef RT_USING_FINSH
-#include <finsh.h>
-static rt_uint8_t led_inited = 0;
-void led(rt_uint32_t led, rt_uint32_t value)
-{
- /* init led configuration if it's not inited. */
- if (!led_inited)
- {
-// rt_hw_led_init(0);
-// rt_hw_led_init(1);
- led_inited = 1;
- }
-
- if ( led == 0 )
- {
- /* set led status */
- switch (value)
- {
- case 0:
- rt_hw_led_off(0);
- break;
- case 1:
- rt_hw_led_on(0);
- break;
- default:
- break;
- }
- }
-
- if ( led == 1 )
- {
- /* set led status */
- switch (value)
- {
- case 0:
- rt_hw_led_off(1);
- break;
- case 1:
- rt_hw_led_on(1);
- break;
- default:
- break;
- }
- }
-}
-FINSH_FUNCTION_EXPORT(led, set led[0 - 1] on[1] or off[0].)
-#endif
-
-/*@}*/
diff --git a/bsp/apollo2/board/hw_led.h b/bsp/apollo2/board/hw_led.h
deleted file mode 100644
index 8f954a7705..0000000000
--- a/bsp/apollo2/board/hw_led.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * File : hw_led.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2017, RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date Author Notes
- * 2017-09-14 Haley the first version
- */
-
-#ifndef __HW_LED_H
-#define __HW_LED_H
-
-#include <rtthread.h>
-
-/**
- * @brief LED polarity macros
- *
- */
-#define AM_LED_POL_POLARITY_M 0x1
-#define AM_LED_ON_HIGH 0x1
-#define AM_LED_ON_LOW 0x0
-
-/**
- * @brief LED direct drive indicator macro
- * Or this in with the polarity value to use the GPIO DATA register instead of
- * the GPIO DATA ENABLE register to directly drive an LED buffer.
- */
-#define AM_LED_POL_DIRECT_DRIVE_M 0x2
-
-
-/**
- * @brief Structure for keeping track of LEDs
- *
- */
-typedef struct
-{
- rt_uint32_t GPIONumber;
- rt_uint32_t Polarity;
-}
-rt_hw_led_t;
-
-/**
- * @brief External function definitions
- *
- */
-void rt_hw_led_init(rt_uint32_t LEDNum);
-void rt_hw_led_array_init(rt_uint32_t NumLEDs);
-void rt_hw_led_array_disable(rt_uint32_t NumLEDs);
-void rt_hw_led_on(rt_uint32_t LEDNum);
-void rt_hw_led_off(rt_uint32_t LEDNum);
-void rt_hw_led_toggle(rt_uint32_t LEDNum);
-int rt_hw_led_get(rt_uint32_t LEDNum);
-void rt_hw_led_array_out(rt_uint32_t NumLEDs, rt_uint32_t Value);
-
-#endif // __HW_LED_H
diff --git a/bsp/apollo2/board/hw_uart.h b/bsp/apollo2/board/hw_uart.h
deleted file mode 100644
index afef169804..0000000000
--- a/bsp/apollo2/board/hw_uart.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * File : hw_uart.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2017, RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date Author Notes
- * 2017-09-14 Haley the first version
- */
-
-#ifndef __HW_UART_H_
-#define __HW_UART_H_
-
-#include <rtthread.h>
-
-void rt_hw_uart_init(void);
-void rt_hw_uart_send_string(char *pcString);
-
-#endif // __HW_UART_H_
diff --git a/bsp/apollo2/board/led.c b/bsp/apollo2/board/led.c
new file mode 100644
index 0000000000..bb8d1e1532
--- /dev/null
+++ b/bsp/apollo2/board/led.c
@@ -0,0 +1,152 @@
+/*
+ * File :_led.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2017, 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.
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2017-09-14 Haley the first version
+ */
+
+#include <rtthread.h>
+#include <rtdevice.h>
+#include "am_mcu_apollo.h"
+#include "board.h"
+
+#define AM_GPIO_LED0 46
+#define AM_GPIO_LED1 47
+#define AM_GPIO_LED2 48
+#define AM_GPIO_LED3 49
+
+/**
+ * @brief Turns on the requested LED.
+ *
+ * @param LEDNum is the LED number for the light to turn on.
+ *
+ * This function turns on a single LED.
+ *
+ * @return None.
+ */
+void rt_hw_led_on(rt_uint8_t LEDNum)
+{
+ if(LEDNum == 0)
+ rt_pin_write(AM_GPIO_LED0, PIN_LOW);
+
+ else if(LEDNum == 1)
+ rt_pin_write(AM_GPIO_LED1, PIN_LOW);
+
+ else if(LEDNum == 2)
+ rt_pin_write(AM_GPIO_LED2, PIN_LOW);
+
+ else if(LEDNum == 3)
+ rt_pin_write(AM_GPIO_LED3, PIN_LOW);
+}
+
+/**
+ * @brief Turns off the requested LED.
+ *
+ * @param LEDNum is the LED number for the light to turn off.
+ *
+ * This function turns off a single LED.
+ *
+ * @return None.
+ */
+void rt_hw_led_off(rt_uint8_t LEDNum)
+{
+ if(LEDNum == 0)
+ rt_pin_write(AM_GPIO_LED0, PIN_HIGH);
+
+ else if(LEDNum == 1)
+ rt_pin_write(AM_GPIO_LED1, PIN_HIGH);
+
+ else if(LEDNum == 2)
+ rt_pin_write(AM_GPIO_LED2, PIN_HIGH);
+
+ else if(LEDNum == 3)
+ rt_pin_write(AM_GPIO_LED3, PIN_HIGH);
+}
+
+/**
+ * @brief Configures the necessary pins for an array of LEDs
+ *
+ * @param None.
+ *
+ * This function configures a GPIO to drive an LED in a low-power way.
+ *
+ * @return None.
+ */
+int rt_hw_led_init(void)
+{
+#if defined(RT_USING_LED0)
+ /* config led */
+ rt_pin_mode(AM_GPIO_LED0, PIN_MODE_OUTPUT);
+
+ /* turns off the led */
+ rt_hw_led_off(0);
+#endif /* RT_USING_LED0 */
+
+#if defined(RT_USING_LED1)
+ /* config led */
+ rt_pin_mode(AM_GPIO_LED1, PIN_MODE_OUTPUT);
+
+ /* turns off the led */
+ rt_hw_led_off(1);
+#endif /* RT_USING_LED1 */
+
+#if defined(RT_USING_LED2)
+ /* config led */
+ rt_pin_mode(AM_GPIO_LED2, PIN_MODE_OUTPUT);
+
+ /* turns off the led */
+ rt_hw_led_off(2);
+#endif /* RT_USING_LED0 */
+
+#if defined(RT_USING_LED3)
+ /* config led */
+ rt_pin_mode(AM_GPIO_LED3, PIN_MODE_OUTPUT);
+
+ /* turns off the led */
+ rt_hw_led_off(3);
+#endif /* RT_USING_LED1 */
+
+ return 0;
+}
+#ifdef RT_USING_PIN
+INIT_BOARD_EXPORT(rt_hw_led_init);
+#endif
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
+void led(rt_uint32_t led, rt_uint32_t state)
+{
+ /* set led status */
+ switch (state)
+ {
+ case 0:
+ rt_hw_led_off(led);
+ break;
+ case 1:
+ rt_hw_led_on(led);
+ break;
+ default:
+ break;
+ }
+}
+FINSH_FUNCTION_EXPORT(led, turn led (0 - 3) on (1) or off (0).)
+#endif
+
+/*@}*/
diff --git a/bsp/apollo2/board/led.h b/bsp/apollo2/board/led.h
new file mode 100644
index 0000000000..e080e250cb
--- /dev/null
+++ b/bsp/apollo2/board/led.h
@@ -0,0 +1,38 @@
+/*
+ * File : led.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2017, 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.
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2017-09-14 Haley the first version
+ */
+
+#ifndef __HW_LED_H
+#define __HW_LED_H
+
+#include <rtthread.h>
+
+/**
+ * @brief External function definitions
+ *
+ */
+void rt_hw_led_init(void);
+void rt_hw_led_on(rt_uint8_t LEDNum);
+void rt_hw_led_off(rt_uint8_t LEDNum);
+
+#endif // __HW_LED_H
diff --git a/bsp/apollo2/board/hw_uart.c b/bsp/apollo2/board/uart.c
index d1fa7af771..80a8f98d1d 100644
--- a/bsp/apollo2/board/hw_uart.c
+++ b/bsp/apollo2/board/uart.c
@@ -1,21 +1,30 @@
/*
- * File : hw_uart.c
+ * File : uart.c
* This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2017, RT-Thread Development Team
+ * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
*
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
+ * 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.
*
* Change Logs:
* Date Author Notes
* 2017-09-15 Haley the first version
*/
+#include <rtdevice.h>
#include "am_mcu_apollo.h"
-#include "hw_uart.h"
#include "board.h"
-#include <rtdevice.h>
/* USART0 */
#define AM_UART0_INST 0
@@ -37,7 +46,7 @@
struct am_uart
{
uint32_t uart_device;
- uint32_t uart_interrupt;
+ uint32_t uart_interrupt;
};
/**
@@ -70,17 +79,17 @@ static void rt_hw_uart_enable(struct am_uart* uart)
/* Enable the UART */
am_hal_uart_enable(uart->uart_device);
-#if defined(RT_USING_UART0)
+#if defined(RT_USING_UART0)
/* Make sure the UART RX and TX pins are enabled */
- am_hal_gpio_pin_config(UART0_GPIO_TX, UART0_GPIO_CFG_TX);
- am_hal_gpio_pin_config(UART0_GPIO_RX, UART0_GPIO_CFG_RX | AM_HAL_GPIO_PULL12K);
-#endif /* RT_USING_UART0 */
-
-#if defined(RT_USING_UART1)
+ am_hal_gpio_pin_config(UART0_GPIO_TX, UART0_GPIO_CFG_TX);
+ am_hal_gpio_pin_config(UART0_GPIO_RX, UART0_GPIO_CFG_RX | AM_HAL_GPIO_PULL12K);
+#endif /* RT_USING_UART0 */
+
+#if defined(RT_USING_UART1)
/* Make sure the UART RX and TX pins are enabled */
- am_hal_gpio_pin_config(UART1_GPIO_TX, UART1_GPIO_CFG_TX);
- am_hal_gpio_pin_config(UART1_GPIO_RX, UART1_GPIO_CFG_RX | AM_HAL_GPIO_PULL12K);
-#endif /* RT_USING_UART1 */
+ am_hal_gpio_pin_config(UART1_GPIO_TX, UART1_GPIO_CFG_TX);
+ am_hal_gpio_pin_config(UART1_GPIO_RX, UART1_GPIO_CFG_RX | AM_HAL_GPIO_PULL12K);
+#endif /* RT_USING_UART1 */
}
/**
@@ -94,26 +103,26 @@ static void rt_hw_uart_enable(struct am_uart* uart)
*/
static void rt_hw_uart_disable(struct am_uart* uart)
{
- /* Clear all interrupts before sleeping as having a pending UART interrupt burns power */
- am_hal_uart_int_clear(uart->uart_device, 0xFFFFFFFF);
+ /* Clear all interrupts before sleeping as having a pending UART interrupt burns power */
+ am_hal_uart_int_clear(uart->uart_device, 0xFFFFFFFF);
+
+ /* Disable the UART */
+ am_hal_uart_disable(uart->uart_device);
- /* Disable the UART */
- am_hal_uart_disable(uart->uart_device);
-
-#if defined(RT_USING_UART0)
+#if defined(RT_USING_UART0)
/* Disable the UART pins */
- am_hal_gpio_pin_config(UART0_GPIO_TX, AM_HAL_PIN_DISABLE);
- am_hal_gpio_pin_config(UART0_GPIO_RX, AM_HAL_PIN_DISABLE);
-#endif /* RT_USING_UART0 */
-
-#if defined(RT_USING_UART1)
+ am_hal_gpio_pin_config(UART0_GPIO_TX, AM_HAL_PIN_DISABLE);
+ am_hal_gpio_pin_config(UART0_GPIO_RX, AM_HAL_PIN_DISABLE);
+#endif /* RT_USING_UART0 */
+
+#if defined(RT_USING_UART1)
/* Disable the UART pins */
- am_hal_gpio_pin_config(UART1_GPIO_TX, AM_HAL_PIN_DISABLE);
- am_hal_gpio_pin_config(UART1_GPIO_RX, AM_HAL_PIN_DISABLE);
-#endif /* RT_USING_UART1 */
-
- /* Disable the UART clock */
- am_hal_uart_clock_disable(uart->uart_device);
+ am_hal_gpio_pin_config(UART1_GPIO_TX, AM_HAL_PIN_DISABLE);
+ am_hal_gpio_pin_config(UART1_GPIO_RX, AM_HAL_PIN_DISABLE);
+#endif /* RT_USING_UART1 */
+
+ /* Disable the UART clock */
+ am_hal_uart_clock_disable(uart->uart_device);
}
/**
@@ -129,9 +138,9 @@ static void rt_hw_uart_disable(struct am_uart* uart)
void rt_hw_uart_send_string(char *pcString)
{
am_hal_uart_string_transmit_polled(AM_UART0_INST, pcString);
-
- /* Wait until busy bit clears to make sure UART fully transmitted last byte */
- while ( am_hal_uart_flags_get(AM_UART0_INST) & AM_HAL_UART_FR_BUSY );
+
+ /* Wait until busy bit clears to make sure UART fully transmitted last byte */
+ while ( am_hal_uart_flags_get(AM_UART0_INST) & AM_HAL_UART_FR_BUSY );
}
static rt_err_t am_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
@@ -141,29 +150,29 @@ static rt_err_t am_configure(struct rt_serial_device *serial, struct serial_conf
RT_ASSERT(serial != RT_NULL);
RT_ASSERT(cfg != RT_NULL);
- uart = (struct am_uart *)serial->parent.user_data;
+ uart = (struct am_uart *)serial->parent.user_data;
+
+ RT_ASSERT(uart != RT_NULL);
+
+ /* Get the configure */
+ g_sUartConfig.ui32BaudRate = cfg->baud_rate;
+ g_sUartConfig.ui32DataBits = cfg->data_bits;
- RT_ASSERT(uart != RT_NULL);
-
- /* Get the configure */
- g_sUartConfig.ui32BaudRate = cfg->baud_rate;
- g_sUartConfig.ui32DataBits = cfg->data_bits;
-
if (cfg->stop_bits == STOP_BITS_1)
g_sUartConfig.bTwoStopBits = false;
else if (cfg->stop_bits == STOP_BITS_2)
g_sUartConfig.bTwoStopBits = true;
- g_sUartConfig.ui32Parity = cfg->parity;
- g_sUartConfig.ui32FlowCtrl = AM_HAL_UART_PARITY_NONE;
-
+ g_sUartConfig.ui32Parity = cfg->parity;
+ g_sUartConfig.ui32FlowCtrl = AM_HAL_UART_PARITY_NONE;
+
/* Configure the UART */
am_hal_uart_config(uart->uart_device, &g_sUartConfig);
/* Enable the UART */
- am_hal_uart_enable(uart->uart_device);
-
- return RT_EOK;
+ am_hal_uart_enable(uart->uart_device);
+
+ return RT_EOK;
}
static rt_err_t am_control(struct rt_serial_device *serial, int cmd, void *arg)
@@ -174,24 +183,24 @@ static rt_err_t am_control(struct rt_serial_device *serial, int cmd, void *arg)
RT_ASSERT(serial != RT_NULL);
uart = (struct am_uart *)serial->parent.user_data;
- RT_ASSERT(uart != RT_NULL);
-
+ RT_ASSERT(uart != RT_NULL);
+
switch (cmd)
{
/* disable interrupt */
- case RT_DEVICE_CTRL_CLR_INT:
- rt_hw_uart_disable(uart);
- break;
- /* enable interrupt */
- case RT_DEVICE_CTRL_SET_INT:
- rt_hw_uart_enable(uart);
- break;
- /* UART config */
- case RT_DEVICE_CTRL_CONFIG :
- break;
+ case RT_DEVICE_CTRL_CLR_INT:
+ rt_hw_uart_disable(uart);
+ break;
+ /* enable interrupt */
+ case RT_DEVICE_CTRL_SET_INT:
+ rt_hw_uart_enable(uart);
+ break;
+ /* UART config */
+ case RT_DEVICE_CTRL_CONFIG :
+ break;
}
-
- return RT_EOK;
+
+ return RT_EOK;
}
static int am_putc(struct rt_serial_device *serial, char c)
@@ -200,33 +209,33 @@ static int am_putc(struct rt_serial_device *serial, char c)
RT_ASSERT(serial != RT_NULL);
uart = (struct am_uart *)serial->parent.user_data;
-
- RT_ASSERT(uart != RT_NULL);
-
- am_hal_uart_char_transmit_polled(uart->uart_device, c);
-
- return 1;
+
+ RT_ASSERT(uart != RT_NULL);
+
+ am_hal_uart_char_transmit_polled(uart->uart_device, c);
+
+ return 1;
}
-
+
static int am_getc(struct rt_serial_device *serial)
{
- char c;
- int ch;
- struct am_uart* uart;
-
- RT_ASSERT(serial != RT_NULL);
+ char c;
+ int ch;
+ struct am_uart* uart;
+
+ RT_ASSERT(serial != RT_NULL);
uart = (struct am_uart *)serial->parent.user_data;
- RT_ASSERT(uart != RT_NULL);
-
+ RT_ASSERT(uart != RT_NULL);
+
ch = -1;
- if (am_hal_uart_flags_get(uart->uart_device) & AM_HAL_UART_FR_RX_FULL)
+ if ((am_hal_uart_flags_get(uart->uart_device) & AM_HAL_UART_FR_RX_EMPTY) == 0)
{
- am_hal_uart_char_receive_polled(uart->uart_device, &c);
- ch = c & 0xff;
+ am_hal_uart_char_receive_polled(uart->uart_device, &c);
+ ch = c & 0xff;
}
-
- return ch;
+
+ return ch;
}
/**
@@ -236,35 +245,35 @@ static int am_getc(struct rt_serial_device *serial)
*/
static void uart_isr(struct rt_serial_device *serial)
{
- uint32_t status;
-
- RT_ASSERT(serial != RT_NULL);
- struct am_uart *uart = (struct am_uart *) serial->parent.user_data;
-
- RT_ASSERT(uart != RT_NULL);
+ uint32_t status;
+
+ RT_ASSERT(serial != RT_NULL);
+ struct am_uart *uart = (struct am_uart *) serial->parent.user_data;
+
+ RT_ASSERT(uart != RT_NULL);
/* Read the interrupt status */
- status = am_hal_uart_int_status_get(uart->uart_device, false);
-
- //rt_kprintf("status is %d\r\n", status);
-
- /* Clear the UART interrupt */
- am_hal_uart_int_clear(uart->uart_device, status);
+ status = am_hal_uart_int_status_get(uart->uart_device, false);
+
+ //rt_kprintf("status is %d\r\n", status);
+
+ /* Clear the UART interrupt */
+ am_hal_uart_int_clear(uart->uart_device, status);
if (status & (AM_HAL_UART_INT_RX_TMOUT))
{
- rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_TIMEOUT);
+ rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
if (status & AM_HAL_UART_INT_RX)
- {
- rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
- }
+ {
+ rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
+ }
- if (status & AM_HAL_UART_INT_TX)
- {
- //rt_hw_serial_isr(serial, RT_SERIAL_EVENT_TX_DONE);
- }
+ if (status & AM_HAL_UART_INT_TX)
+ {
+ // rt_hw_serial_isr(serial, RT_SERIAL_EVENT_TX_DONE);
+ }
}
static const struct rt_uart_ops am_uart_ops =
@@ -280,7 +289,7 @@ static const struct rt_uart_ops am_uart_ops =
struct am_uart uart0 =
{
AM_UART0_INST,
- AM_HAL_INTERRUPT_UART0
+ AM_HAL_INTERRUPT_UART0
};
static struct rt_serial_device serial0;
@@ -301,7 +310,7 @@ void am_uart0_isr(void)
struct am_uart uart1 =
{
AM_UART1_INST,
- AM_HAL_INTERRUPT_UART1
+ AM_HAL_INTERRUPT_UART1
};
static struct rt_serial_device serial1;
@@ -309,7 +318,7 @@ void am_uart1_isr(void)
{
/* enter interrupt */
rt_interrupt_enter();
-
+
uart_isr(&serial1);
/* leave interrupt */
@@ -319,17 +328,17 @@ void am_uart1_isr(void)
static void GPIO_Configuration(void)
{
-#if defined(RT_USING_UART0)
+#if defined(RT_USING_UART0)
/* Make sure the UART RX and TX pins are enabled */
- am_hal_gpio_pin_config(UART0_GPIO_TX, UART0_GPIO_CFG_TX);
- am_hal_gpio_pin_config(UART0_GPIO_RX, UART0_GPIO_CFG_RX | AM_HAL_GPIO_PULL12K);
-#endif /* RT_USING_UART0 */
-
-#if defined(RT_USING_UART1)
+ am_hal_gpio_pin_config(UART0_GPIO_TX, UART0_GPIO_CFG_TX);
+ am_hal_gpio_pin_config(UART0_GPIO_RX, UART0_GPIO_CFG_RX | AM_HAL_GPIO_PULL12K);
+#endif /* RT_USING_UART0 */
+
+#if defined(RT_USING_UART1)
/* Make sure the UART RX and TX pins are enabled */
- am_hal_gpio_pin_config(UART1_GPIO_TX, UART1_GPIO_CFG_TX);
- am_hal_gpio_pin_config(UART1_GPIO_RX, UART1_GPIO_CFG_RX | AM_HAL_GPIO_PULL12K);
-#endif /* RT_USING_UART1 */
+ am_hal_gpio_pin_config(UART1_GPIO_TX, UART1_GPIO_CFG_TX);
+ am_hal_gpio_pin_config(UART1_GPIO_RX, UART1_GPIO_CFG_RX | AM_HAL_GPIO_PULL12K);
+#endif /* RT_USING_UART1 */
}
static void RCC_Configuration(struct am_uart* uart)
@@ -341,26 +350,25 @@ static void RCC_Configuration(struct am_uart* uart)
am_hal_uart_clock_enable(uart->uart_device);
/* Disable the UART before configuring it */
- am_hal_uart_disable(uart->uart_device);
-
+ am_hal_uart_disable(uart->uart_device);
+
/* Configure the UART */
- am_hal_uart_config(uart->uart_device, &g_sUartConfig);
-
+ am_hal_uart_config(uart->uart_device, &g_sUartConfig);
+
/* Enable the UART */
- am_hal_uart_enable(uart->uart_device);
+ am_hal_uart_enable(uart->uart_device);
/* Enable the UART FIFO */
- //am_hal_uart_fifo_config(uart->uart_device, AM_HAL_UART_TX_FIFO_1_2 | AM_HAL_UART_RX_FIFO_1_2);
+ am_hal_uart_fifo_config(uart->uart_device, AM_HAL_UART_TX_FIFO_1_2 | AM_HAL_UART_RX_FIFO_1_2);
}
static void NVIC_Configuration(struct am_uart* uart)
{
- /* Enable interrupts */
- am_hal_uart_int_enable(uart->uart_device, AM_HAL_UART_INT_RX);
-
- /* Enable the uart interrupt in the NVIC */
- am_hal_interrupt_enable(uart->uart_interrupt);
- am_hal_uart_int_clear(uart->uart_device, 0xFFFFFFFF);
+ /* Enable interrupts */
+ am_hal_uart_int_enable(uart->uart_device, AM_HAL_UART_INT_RX_TMOUT | AM_HAL_UART_INT_RX);
+
+ /* Enable the uart interrupt in the NVIC */
+ am_hal_interrupt_enable(uart->uart_interrupt);
}
/**
@@ -373,40 +381,40 @@ static void NVIC_Configuration(struct am_uart* uart)
void rt_hw_uart_init(void)
{
struct am_uart* uart;
- struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
+ struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
GPIO_Configuration();
-
+
#if defined(RT_USING_UART0)
uart = &uart0;
config.baud_rate = BAUD_RATE_115200;
- RCC_Configuration(uart);
- NVIC_Configuration(uart);
-
+ RCC_Configuration(uart);
+ NVIC_Configuration(uart);
+
serial0.ops = &am_uart_ops;
- serial0.config = config;
-
+ serial0.config = config;
+
/* register UART1 device */
rt_hw_serial_register(&serial0, "uart0",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX |
- RT_DEVICE_FLAG_INT_TX, uart);
+ RT_DEVICE_FLAG_INT_TX, uart);
#endif /* RT_USING_UART0 */
#if defined(RT_USING_UART1)
uart = &uart1;
config.baud_rate = BAUD_RATE_115200;
- RCC_Configuration(uart);
- NVIC_Configuration(uart);
-
+ RCC_Configuration(uart);
+ NVIC_Configuration(uart);
+
serial1.ops = &am_uart_ops;
- serial1.config = config;
-
+ serial1.config = config;
+
/* register UART1 device */
rt_hw_serial_register(&serial1, "uart1",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX |
- RT_DEVICE_FLAG_INT_TX, uart);
+ RT_DEVICE_FLAG_INT_TX, uart);
#endif /* RT_USING_UART1 */
}
diff --git a/bsp/apollo2/board/uart.h b/bsp/apollo2/board/uart.h
new file mode 100644
index 0000000000..49fff8a9f7
--- /dev/null
+++ b/bsp/apollo2/board/uart.h
@@ -0,0 +1,30 @@
+/*
+ * File : uart.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2017, 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.
+ *
+ * Change Logs:
+ * Date Author Notes
+ * 2017-09-14 Haley the first version
+ */
+
+#ifndef __UART_H_
+#define __UART_H_
+
+void rt_hw_uart_init(void);
+
+#endif // __UART_H_