环境：Win10，CCSv8.1
主要参考文档：simplelink_mcu_sdk/Quick_Start_Guide.html
比较折腾，所以立个笔记。。。
打开CCS后，点击Window->Resource Explorer,然后在搜索框中搜索CC3220S-LAUNCHXL，按下图步骤安装并导入freertos的pwmled demo到ccs中:
如果此时直接运行，则会报错，报错信息如下：
- **** Clean-only build of configuration Debug for project pwmled2_CC3220S_LAUNCHXL_freertos_ccs_syscfg ****
- "C:\\ti\\ccsv8\\utils\\bin\\gmake" -k -j 12 clean -O
- DEL /F "pwmled2_CC3220S_LAUNCHXL_freertos_ccs_syscfg.bin" "Board.c" "pwmled2_CC3220S_LAUNCHXL_freertos_ccs_syscfg.out" "Board.h"
- DEL /F "main_freertos.obj" "pwmled2.obj" "Board.obj"
- DEL /F "main_freertos.d" "pwmled2.d" "Board.d"
- 找不到 E:\AppSave\TIccs8\pwmled2_CC3220S_LAUNCHXL_freertos_ccs_syscfg\Debug\pwmled2_CC3220S_LAUNCHXL_freertos_ccs_syscfg.bin
- 找不到 E:\AppSave\TIccs8\pwmled2_CC3220S_LAUNCHXL_freertos_ccs_syscfg\Debug\main_freertos.obj
- 找不到 E:\AppSave\TIccs8\pwmled2_CC3220S_LAUNCHXL_freertos_ccs_syscfg\Debug\main_freertos.d
- Finished clean
-
- **** Build Finished ****
- Buildfile generation error occurred..
- Required variable 'FREERTOS_INSTALL_DIR' cannot be resolved or is pointing to a non-existent location. See 'Preferences > CCS > Build > Variables' page to define this variable before building this project.
- Build stopped..
此时应当到到
www.freertos.org freertos官网下载源码并安装，再参考上图步骤3安装目录中的文档
/simplelink_cc32xx_sdk_2_20_00_10/docs/simplelink_mcu_sdk/Quick_Start_Guide.html
按照Add CCS Support for FreeRTOSv10一节内容，将freertos源码安装路径配置到ccs中，配置方法Window> Preferences > Code Composer Studio > Build > Variables > Add, 如图：
然后重新点击Debug按钮运行，即可看到两个led愉快的闪烁了~~
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下面是吐槽时间：
1. CC3220s属于Simplelink支持范畴，可以直接在re中安装，还是很方便的，不过去年才到手的CC2650-LANCHXL不支持是几个意思。。。
2.安装好ccs之后，提示update available，点击安装更新，然后有一个更新死活安装不上，重装，爬墙，各种办法都没解决，有遇到相同情况的吗？
- An error occurred while collecting items to be installed
- session context was:(profile=epp.package.cpp, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
- No repository found containing: org.eclipse.update.feature,com.ti.c2000.support.win32,4.2.5.0
- No repository found containing: binary,com.ti.c2000.support.win32_root,4.2.5.0
有图：
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