[BSP][stm32f411-nucleo] Add GCC support.

bsp/stm32f411-nucleo/.config

@@ -8,17 +8,18 @@
 #
 CONFIG_RT_NAME_MAX=8
 CONFIG_RT_ALIGN_SIZE=4
+# CONFIG_RT_THREAD_PRIORITY_8 is not set
+CONFIG_RT_THREAD_PRIORITY_32=y
+# CONFIG_RT_THREAD_PRIORITY_256 is not set
 CONFIG_RT_THREAD_PRIORITY_MAX=32
 CONFIG_RT_TICK_PER_SECOND=100
 CONFIG_RT_DEBUG=y
 CONFIG_RT_USING_OVERFLOW_CHECK=y
 CONFIG_RT_DEBUG_INIT=0
-# CONFIG_RT_DEBUG_THREAD is not set
+CONFIG_RT_DEBUG_THREAD=0
 CONFIG_RT_USING_HOOK=y
-CONFIG_IDLE_THREAD_STACK_SIZE=256
+CONFIG_IDLE_THREAD_STACK_SIZE=512
-CONFIG_RT_USING_TIMER_SOFT=y
+# CONFIG_RT_USING_TIMER_SOFT is not set
-CONFIG_RT_TIMER_THREAD_PRIO=4
-CONFIG_RT_TIMER_THREAD_STACK_SIZE=512
 
 #
 # Inter-Thread communication
@@ -35,14 +36,17 @@ CONFIG_RT_USING_MESSAGEQUEUE=y
 #
 CONFIG_RT_USING_MEMPOOL=y
 # CONFIG_RT_USING_MEMHEAP is not set
-CONFIG_RT_USING_HEAP=y
+# CONFIG_RT_USING_NOHEAP is not set
 CONFIG_RT_USING_SMALL_MEM=y
 # CONFIG_RT_USING_SLAB is not set
+# CONFIG_RT_USING_MEMTRACE is not set
+CONFIG_RT_USING_HEAP=y
 
 #
 # Kernel Device Object
 #
 CONFIG_RT_USING_DEVICE=y
+# CONFIG_RT_USING_INTERRUPT_INFO is not set
 CONFIG_RT_USING_CONSOLE=y
 CONFIG_RT_CONSOLEBUF_SIZE=128
 CONFIG_RT_CONSOLE_DEVICE_NAME="uart2"
@@ -53,6 +57,7 @@ CONFIG_RT_CONSOLE_DEVICE_NAME="uart2"
 #
 CONFIG_RT_USING_COMPONENTS_INIT=y
 CONFIG_RT_USING_USER_MAIN=y
+CONFIG_RT_MAIN_THREAD_STACK_SIZE=2048
 
 #
 # C++ features
@@ -63,14 +68,19 @@ CONFIG_RT_USING_USER_MAIN=y
 # Command shell
 #
 CONFIG_RT_USING_FINSH=y
+CONFIG_FINSH_THREAD_NAME="tshell"
 CONFIG_FINSH_USING_HISTORY=y
+CONFIG_FINSH_HISTORY_LINES=5
 CONFIG_FINSH_USING_SYMTAB=y
 CONFIG_FINSH_USING_DESCRIPTION=y
+# CONFIG_FINSH_ECHO_DISABLE_DEFAULT is not set
 CONFIG_FINSH_THREAD_PRIORITY=20
 CONFIG_FINSH_THREAD_STACK_SIZE=4096
 CONFIG_FINSH_CMD_SIZE=80
 # CONFIG_FINSH_USING_AUTH is not set
-# CONFIG_FINSH_USING_MSH is not set
+CONFIG_FINSH_USING_MSH=y
+CONFIG_FINSH_USING_MSH_DEFAULT=y
+CONFIG_FINSH_USING_MSH_ONLY=y
 
 #
 # Device virtual file system
@@ -84,6 +94,7 @@ CONFIG_RT_USING_DEVICE_IPC=y
 CONFIG_RT_USING_SERIAL=y
 # CONFIG_RT_USING_CAN is not set
 # CONFIG_RT_USING_HWTIMER is not set
+# CONFIG_RT_USING_CPUTIME is not set
 # CONFIG_RT_USING_I2C is not set
 # CONFIG_RT_USING_PIN is not set
 # CONFIG_RT_USING_MTD_NOR is not set
@@ -92,6 +103,11 @@ CONFIG_RT_USING_SERIAL=y
 # CONFIG_RT_USING_SDIO is not set
 # CONFIG_RT_USING_SPI is not set
 # CONFIG_RT_USING_WDT is not set
+# CONFIG_RT_USING_WIFI is not set
+
+#
+# Using USB
+#
 # CONFIG_RT_USING_USB_HOST is not set
 # CONFIG_RT_USING_USB_DEVICE is not set
 
@@ -116,20 +132,20 @@ CONFIG_RT_USING_SERIAL=y
 # CONFIG_RT_USING_MODBUS is not set
 
 #
-# RT-Thread UI Engine
+# VBUS(Virtual Software BUS)
 #
-# CONFIG_PKG_USING_GUIENGINE is not set
+# CONFIG_RT_USING_VBUS is not set
+
+#
+# Utilities
+#
+# CONFIG_RT_USING_LOGTRACE is not set
+# CONFIG_RT_USING_RYM is not set
 
 #
 # RT-Thread online packages
 #
 
-#
-# system packages
-#
-# CONFIG_PKG_USING_PARTITION is not set
-# CONFIG_PKG_USING_SQLITE is not set
-
 #
 # IoT - internet of things
 #
@@ -138,39 +154,94 @@ CONFIG_RT_USING_SERIAL=y
 # CONFIG_PKG_USING_MONGOOSE is not set
 # CONFIG_PKG_USING_WEBTERMINAL is not set
 # CONFIG_PKG_USING_CJSON is not set
+# CONFIG_PKG_USING_LJSON is not set
 # CONFIG_PKG_USING_EZXML is not set
+# CONFIG_PKG_USING_NANOPB is not set
+# CONFIG_PKG_USING_GAGENT_CLOUD is not set
+
+#
+# Wi-Fi
+#
 
 #
 # Marvell WiFi
 #
-# CONFIG_PKG_USING_MARVELLWIFI is not set
+# CONFIG_PKG_USING_WLANMARVELL is not set
+
+#
+# Wiced WiFi
+#
+# CONFIG_PKG_USING_WLAN_WICED is not set
+# CONFIG_PKG_USING_COAP is not set
+# CONFIG_PKG_USING_NOPOLL is not set
+# CONFIG_PKG_USING_NETUTILS is not set
+# CONFIG_PKG_USING_ONENET is not set
 
 #
 # security packages
 #
 # CONFIG_PKG_USING_MBEDTLS is not set
+# CONFIG_PKG_USING_libsodium is not set
+# CONFIG_PKG_USING_TINYCRYPT is not set
 
 #
 # language packages
 #
 # CONFIG_PKG_USING_JERRYSCRIPT is not set
+# CONFIG_PKG_USING_MICROPYTHON is not set
 
 #
 # multimedia packages
 #
+# CONFIG_PKG_USING_OPENMV is not set
+# CONFIG_PKG_USING_MUPDF is not set
 
 #
 # tools packages
 #
 # CONFIG_PKG_USING_CMBACKTRACE is not set
+# CONFIG_PKG_USING_EASYFLASH is not set
 # CONFIG_PKG_USING_EASYLOGGER is not set
+# CONFIG_PKG_USING_SYSTEMVIEW is not set
+
+#
+# system packages
+#
+
+#
+# RT-Thread GUI Engine
+#
+# CONFIG_PKG_USING_GUIENGINE is not set
+# CONFIG_PKG_USING_LWEXT4 is not set
+# CONFIG_PKG_USING_PARTITION is not set
+# CONFIG_PKG_USING_FAL is not set
+# CONFIG_PKG_USING_SQLITE is not set
+# CONFIG_PKG_USING_RTI is not set
+# CONFIG_PKG_USING_LITTLEVGL2RTT is not set
+
+#
+# peripheral libraries and drivers
+#
+# CONFIG_PKG_USING_STM32F4_HAL is not set
+# CONFIG_PKG_USING_STM32F4_DRIVERS is not set
 
 #
 # miscellaneous packages
 #
-# CONFIG_PKG_USING_HELLO is not set
+# CONFIG_PKG_USING_FASTLZ is not set
+# CONFIG_PKG_USING_MINILZO is not set
+# CONFIG_PKG_USING_QUICKLZ is not set
+# CONFIG_PKG_USING_MULTIBUTTON is not set
+# CONFIG_PKG_USING_CANFESTIVAL is not set
+# CONFIG_PKG_USING_ZLIB is not set
 
 #
-# BSP_SPECIAL CONFIG
+# sample package
 #
+# CONFIG_PKG_USING_SAMPLES is not set
+
+#
+# example package: hello
+#
+# CONFIG_PKG_USING_HELLO is not set
 CONFIG_RT_USING_UART2=y

bsp/stm32f411-nucleo/Kconfig

@@ -19,6 +19,5 @@ source "$RTT_DIR/Kconfig"
 source "$PKGS_DIR/Kconfig"
 
 config RT_USING_UART2
-    bool "Using RT_USING_UART2"
+    bool "Using UART2"
-    default y    
+    default y
-

bsp/stm32f411-nucleo/Libraries/CMSIS/Device/ST/STM32F4xx/Source/Templates/gcc/gcc_startup.s

@@ -0,0 +1,104 @@
+/**
+  *************** (C) COPYRIGHT 2017 STMicroelectronics ************************
+  * @file      gcc_startup.s
+  * @author    MCD Application Team
+  * @version   V4.2.0
+  * @date      31-March-2017
+  * @brief     Based on STM32F103xE's startup file.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Configure the clock system
+  *                - Configure external SRAM mounted on STM3210E-EVAL board
+  *                  to be used as data memory (optional, to be enabled by user)
+  *                - Branches to entry in the C library (which eventually
+  *                  calls main(), but entry() in RT-Thread).
+  *            After Reset the Cortex-M3 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m3
+  .fpu softvfp
+  .thumb
+
+/**
+ * @brief  This is the code that gets called when the processor first
+ *          starts execution following a reset event. Only the absolutely
+ *          necessary set is performed, after which the application
+ *          supplied main() routine is called.
+ * @param  None
+ * @retval : None
+*/
+
+  .global Reset_Handler
+
+  .section .text.Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+
+/* Copy the data segment initializers from flash to SRAM */
+  movs r1, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r3, =_sidata
+  ldr r3, [r3, r1]
+  str r3, [r0, r1]
+  adds r1, r1, #4
+
+LoopCopyDataInit:
+  ldr r0, =_sdata
+  ldr r3, =_edata
+  adds r2, r0, r1
+  cmp r2, r3
+  bcc CopyDataInit
+  ldr r2, =_sbss
+  b LoopFillZerobss
+/* Zero fill the bss segment. */
+FillZerobss:
+  movs r3, #0
+  str r3, [r2], #4
+
+LoopFillZerobss:
+  ldr r3, = _ebss
+  cmp r2, r3
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  /* bl __libc_init_array */
+/* Call the application's entry point.*/
+  bl entry
+  bx lr
+.size Reset_Handler, .-Reset_Handler
+

bsp/stm32f411-nucleo/Libraries/CMSIS/SConscript

@@ -13,10 +13,12 @@ CPPDEFINES = [rtconfig.PART_TYPE] #stm32f411xe
 # add for startup script 
 if rtconfig.CROSS_TOOL == 'gcc':
      folder = 'gcc'
+     src += ['Device/ST/STM32F4xx/Source/Templates/gcc/gcc_startup.s']
 elif rtconfig.CROSS_TOOL == 'keil':
      folder = 'arm'
 elif rtconfig.CROSS_TOOL == 'iar':
      folder = 'iar'
+
 #Device/ST/STM32F4xx/Source/Templates/iar/startup_stm32f411xe.s     
 src += ['Device/ST/STM32F4xx/Source/Templates/' + folder + '/startup_' + rtconfig.PART_TYPE.lower() + '.s']
 

bsp/stm32f411-nucleo/README.md

@@ -0,0 +1,133 @@
+# STM32L476-nucleo 板级支持包
+
+## 1. 简介
+
+STM32F411-nucleo 是由意法半导体推出的搭载Cortex-M4内核的高性能微控制器开发板，包括如下硬件特性：
+
+| 硬件 | 描述 |
+| -- | -- |
+|芯片型号| STM32F411RE |
+|CPU  | Cortex-M4 |
+|主频 | 100MHz |
+|Flash| 512kB |
+|SRAM | 128KB |
+
+## 2. 编译说明
+
+| 环境         | 说明                                                         |
+| ------------ | ------------------------------------------------------------ |
+| PC操作系统   | Linux/MacOS/Windows                                          |
+| 编译器       | arm-none-eabi-gcc version 6.3.1 20170620 (release)/armcc/    |
+| 构建工具     | scons/mdk5                                                  |
+| 依赖软件环境 | Env工具/(MDK或arm-none-eabi-gcc)/git/调试器驱动              |
+
+1) 下载源码
+
+```bash
+    git clone https://github.com/RT-Thread/rt-thread.git
+```
+
+2) 配置工程并准备env
+
+* Windows
+
+>在[RT-Thread官网][1]下载ENV工具包
+
+* Linux/Mac
+
+```bash
+    cd rt-thread/bsp/stm32l476-nucleo
+    scons --menuconfig
+    source ~/.env/env.sh
+    pkgs --upgrade
+```
+
+3) 生成工程(Mac/Linux下请跳过此步骤)
+
+* Windows MDK5
+
+```bash
+    scons --target=mdk5 -s
+```
+
+4) 编译
+
+* Windows
+
+使用MDK或IAR请参见对应教程。Windows下使用ENV工具，已经携带GNU GCC工具链，只需要在console下在`bsp/stm32f411-nucleo`目录下使用
+
+```bash
+    scons
+```
+
+即可编译成功。
+
+* Linux/MAC
+
+请使用以下指令设置gcc路径
+
+```bash
+    export RTT_EXEC_PATH=[GCC路径]
+```
+
+而后在`rt-thread/bsp/stm32f411-nucleo`目录下使用
+
+```bash
+    scons
+```
+
+即可编译成功。
+
+GNU GCC编译成功，会在最后有如下类似信息显示：
+
+```bash
+    LINK rtthread-stm32f411.elf
+    arm-none-eabi-objcopy -O binary rtthread-stm32f411.elf rtthread.bin
+    arm-none-eabi-size rtthread-stm32f411.elf
+    text    data     bss     dec     hex filename
+    55916     208    2456   58580    e4d4 rtthread-stm32f411.elf
+    scons: done building targets.
+```
+
+并产生rtthread-stm32f411.elf、rtthread.bin文件。其中rtthread.bin为二进制固件
+
+## 3. 烧写及执行
+
+对于STM32F411-Nucleo开发板，在Windows上可以直接把rtthread.bin文件拖到U盘中实现烧写。在Linux下，请查找Linux下如何使用 ST-Link 的教程。
+
+**注：**
+如果需要使用Keil MDK来调试GNU GCC编译后的映像文件，可以在编译出`rt-thread/bsp/stm32f411-nucleo/rtthread-stm32f411.elf`后，把这个文件改名成`rtthread-stm32f4xx.axf`，
+并放置于build目录下。然后在Keil MDK工程配置的Debug页中，把`Run to main()`选项拿掉，然后直接点击下载或调试即可进行调试（千万别再编译这个工程）。
+
+### 3.1 运行结果
+
+如果编译 & 烧写无误，会在串口2上看到RT-Thread的启动logo信息：
+
+```bash
+ \ | /
+- RT -     Thread Operating System
+ / | \     3.0.4 build May 29 2018
+ 2006 - 2018 Copyright by rt-thread team
+msh >
+```
+
+## 4. 驱动支持情况及计划
+
+| 驱动       | 支持情况 | 备注                         |
+| ---------- | :------: | :--------------------------: |
+| UART       | 支持     | UART2        |
+
+### 4.1 IO在板级支持包中的映射情况
+
+| IO号 | 板级包中的定义 |
+| -- | -- |
+| PA2 | USART2 TX |
+| PA3 | USART2 RX |
+
+## 5. menuconfig Bsp菜单详解
+
+| 选项 | 解释 |
+| -- | -- |
+| Using UART2 | 开启串口2，设备名为"uart2" |
+
+  [1]: https://www.rt-thread.org/page/download.html

bsp/stm32f411-nucleo/drivers/board.h

@@ -19,9 +19,8 @@
 
 #include <stm32f4xx.h>
 #include <stm32f4xx_hal.h>
-// <o> Internal SRAM memory size[Kbytes] <8-64>
+
-//	<i>Default: 64
+#define STM32_SRAM_SIZE         128
-#define STM32_SRAM_SIZE         64
 #define STM32_SRAM_END          (0x20000000 + STM32_SRAM_SIZE * 1024)
 
 #ifdef __CC_ARM
@@ -36,6 +35,6 @@ extern int __bss_end;
 #endif
 #define HEAP_END    STM32_SRAM_END
 
+void rt_hw_board_init(void);
+
 #endif
-extern void rt_hw_board_init(void);
-// <<< Use Configuration Wizard in Context Menu >>>

bsp/stm32f411-nucleo/rtconfig.h

@@ -8,17 +8,15 @@
 
 #define RT_NAME_MAX 8
 #define RT_ALIGN_SIZE 4
+#define RT_THREAD_PRIORITY_32
 #define RT_THREAD_PRIORITY_MAX 32
 #define RT_TICK_PER_SECOND 100
 #define RT_DEBUG
 #define RT_USING_OVERFLOW_CHECK
 #define RT_DEBUG_INIT 0
-/* RT_DEBUG_THREAD is not set */
+#define RT_DEBUG_THREAD 0
 #define RT_USING_HOOK
-#define IDLE_THREAD_STACK_SIZE 256
+#define IDLE_THREAD_STACK_SIZE 512
-#define RT_USING_TIMER_SOFT
-#define RT_TIMER_THREAD_PRIO 4
-#define RT_TIMER_THREAD_STACK_SIZE 512
 
 /* Inter-Thread communication */
 
@@ -27,15 +25,12 @@
 #define RT_USING_EVENT
 #define RT_USING_MAILBOX
 #define RT_USING_MESSAGEQUEUE
-/* RT_USING_SIGNALS is not set */
 
 /* Memory Management */
 
 #define RT_USING_MEMPOOL
-/* RT_USING_MEMHEAP is not set */
-#define RT_USING_HEAP
 #define RT_USING_SMALL_MEM
-/* RT_USING_SLAB is not set */
+#define RT_USING_HEAP
 
 /* Kernel Device Object */
 
@@ -43,109 +38,99 @@
 #define RT_USING_CONSOLE
 #define RT_CONSOLEBUF_SIZE 128
 #define RT_CONSOLE_DEVICE_NAME "uart2"
-/* RT_USING_MODULE is not set */
 
 /* RT-Thread Components */
 
 #define RT_USING_COMPONENTS_INIT
 #define RT_USING_USER_MAIN
+#define RT_MAIN_THREAD_STACK_SIZE 2048
 
 /* C++ features */
 
-/* RT_USING_CPLUSPLUS is not set */
 
 /* Command shell */
 
 #define RT_USING_FINSH
+#define FINSH_THREAD_NAME "tshell"
 #define FINSH_USING_HISTORY
+#define FINSH_HISTORY_LINES 5
 #define FINSH_USING_SYMTAB
 #define FINSH_USING_DESCRIPTION
 #define FINSH_THREAD_PRIORITY 20
 #define FINSH_THREAD_STACK_SIZE 4096
 #define FINSH_CMD_SIZE 80
-/* FINSH_USING_AUTH is not set */
+#define FINSH_USING_MSH
-/* FINSH_USING_MSH is not set */
+#define FINSH_USING_MSH_DEFAULT
+#define FINSH_USING_MSH_ONLY
 
 /* Device virtual file system */
 
-/* RT_USING_DFS is not set */
 
 /* Device Drivers */
 
 #define RT_USING_DEVICE_IPC
 #define RT_USING_SERIAL
-/* RT_USING_CAN is not set */
+
-/* RT_USING_HWTIMER is not set */
+/* Using USB */
-/* RT_USING_I2C is not set */
+
-/* RT_USING_PIN is not set */
-/* RT_USING_MTD_NOR is not set */
-/* RT_USING_MTD_NAND is not set */
-/* RT_USING_RTC is not set */
-/* RT_USING_SDIO is not set */
-/* RT_USING_SPI is not set */
-/* RT_USING_WDT is not set */
-/* RT_USING_USB_HOST is not set */
-/* RT_USING_USB_DEVICE is not set */
 
 /* POSIX layer and C standard library */
 
-/* RT_USING_LIBC is not set */
-/* RT_USING_PTHREADS is not set */
 
 /* Network stack */
 
 /* light weight TCP/IP stack */
 
-/* RT_USING_LWIP is not set */
 
 /* Modbus master and slave stack */
 
-/* RT_USING_MODBUS is not set */
 
-/* RT-Thread UI Engine */
+/* VBUS(Virtual Software BUS) */
+
+
+/* Utilities */
 
-/* PKG_USING_GUIENGINE is not set */
 
 /* RT-Thread online packages */
 
-/* system packages */
-
-/* PKG_USING_PARTITION is not set */
-/* PKG_USING_SQLITE is not set */
-
 /* IoT - internet of things */
 
-/* PKG_USING_PAHOMQTT is not set */
+
-/* PKG_USING_WEBCLIENT is not set */
+/* Wi-Fi */
-/* PKG_USING_MONGOOSE is not set */
-/* PKG_USING_WEBTERMINAL is not set */
-/* PKG_USING_CJSON is not set */
-/* PKG_USING_EZXML is not set */
 
 /* Marvell WiFi */
 
-/* PKG_USING_MARVELLWIFI is not set */
+
+/* Wiced WiFi */
+
 
 /* security packages */
 
-/* PKG_USING_MBEDTLS is not set */
 
 /* language packages */
 
-/* PKG_USING_JERRYSCRIPT is not set */
 
 /* multimedia packages */
 
+
 /* tools packages */
 
-/* PKG_USING_CMBACKTRACE is not set */
+
-/* PKG_USING_EASYLOGGER is not set */
+/* system packages */
+
+/* RT-Thread GUI Engine */
+
+
+/* peripheral libraries and drivers */
+
 
 /* miscellaneous packages */
 
-/* PKG_USING_HELLO is not set */
 
-/* BSP_SPECIAL CONFIG */
+/* sample package */
+
+
+/* example package: hello */
 
 #define RT_USING_UART2