update for moving SDK to online package

Author: sheltonyu

bsp/at32/at32a403a-start/.config

@@ -116,7 +116,17 @@ AT32A403A-START板级包支持MDK4﹑MDK5﹑IAR开发环境和GCC编译器，以
 
 #### 编译下载
 
-双击 project.uvprojx 文件，打开 MDK5 工程，编译并下载程序到开发板。
+首先需抓取 HAL-SDK，并生成对应工程，步骤如下：
+
+1. 在 bsp 下打开 env 工具。
+
+2. 输入`menuconfig`命令配置工程，配置好之后保存退出。
+
+3. 输入`pkgs --update`命令更新软件包。
+
+4. 输入`scons --target=mdk4/mdk5/iar` 命令重新生成工程。
+
+打开工程文件，如 MDK5 工程 project.uvprojx 文件，，编译并下载程序到开发板。
 
 > 工程默认配置使用AT-LINK SWD下载程序，在通过AT-LINK SWD连接开发板的基础上，点击下载按钮即可下载程序到开发板
 

bsp/at32/at32a403a-start/README.md

@@ -1,11 +1,12 @@
 # for module compiling
-from building import *
 import os
+Import('RTT_ROOT')
+from building import *
 
 cwd = GetCurrentDir()
 objs = []
-
 list = os.listdir(cwd)
+
 for d in list:
     path = os.path.join(cwd, d)
     if os.path.isfile(os.path.join(path, 'SConscript')):

bsp/at32/at32a403a-start/SConscript

@@ -30,6 +30,7 @@ if rtconfig.PLATFORM in ['iccarm']:
     env.Replace(ARFLAGS = [''])
     env.Replace(LINKCOM = env["LINKCOM"] + ' --map project.map')
 
+Export('env')
 Export('RTT_ROOT')
 Export('rtconfig')
 
@@ -46,11 +47,8 @@ Export('SDK_LIB')
 # prepare building environment
 objs = PrepareBuilding(env, RTT_ROOT, has_libcpu=False)
 
-at32_library = 'AT32A403A_Firmware_Library'
-rtconfig.BSP_LIBRARY_TYPE = at32_library
-
-# include libraries
-objs.extend(SConscript(os.path.join(libraries_path_prefix, at32_library, 'SConscript')))
+# include cmsis
+objs.extend(SConscript(os.path.join(libraries_path_prefix, 'cmsis', 'SConscript')))
 
 # include usb libraries
 objs.extend(SConscript(os.path.join(libraries_path_prefix, 'usbd_library', 'SConscript')))

bsp/at32/at32a403a-start/SConstruct

@@ -2,8 +2,6 @@ import os
 import rtconfig
 from building import *
 
-Import('SDK_LIB')
-
 cwd = GetCurrentDir()
 
 # add general drivers
@@ -15,15 +13,6 @@ src/at32_msp.c
 path = [cwd]
 path += [cwd + '/inc']
 
-startup_path_prefix = SDK_LIB
-
-if rtconfig.PLATFORM in ['gcc']:
-    src += [startup_path_prefix + '/AT32A403A_Firmware_Library/cmsis/cm4/device_support/startup/gcc/startup_at32a403a.s']
-elif rtconfig.PLATFORM in ['armcc', 'armclang']:
-    src += [startup_path_prefix + '/AT32A403A_Firmware_Library/cmsis/cm4/device_support/startup/mdk/startup_at32a403a.s']
-elif rtconfig.PLATFORM in ['iccarm']:
-    src += [startup_path_prefix + '/AT32A403A_Firmware_Library/cmsis/cm4/device_support/startup/iar/startup_at32a403a.s']
-
 CPPDEFINES = ['AT32A403AVGT7']
 group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path, CPPDEFINES = CPPDEFINES)
 Return('group')