CC23xx or CC27xx SDK 8.20 to CC23xx or CC27xx SDK 8.40¶

This section will describe how to port a project from CC23xx or CC27xx SDK 8.20 to a CC23xx or CC27xx SDK 8.40 project.

Note

Vulnerability reports and mitigations can be found on Report potential product security vulnerabilities.

Porting Bluetooth LE Projects¶

The recommended method for porting an existing project from CC23xx or CC27xx SDK 8.20 to CC23xx or CC27xx SDK 8.40 is to modify the ProjectSpec file to import the project as a CC23xx or CC27xx SDK 8.40 project.

Porting by modifying the CCS ProjectSpec file (.projectspec) can be done when a ProjectSpec file has been updated and maintained throughout the project’s development. All example projects included in the SDK each come with their own ProjectSpec file. During development, the included ProjectSpec file should be updated to match any changes or additions made to the project. This will make a project more easily package-able and ease migration efforts when future SDK’s are released. For example, the ProjectSpec file of the basic_ble project is located in {SDK_INSTALL_DIR}/examples/rtos/{BOARD}/ble5stack/basic_ble/freertos/ticlang

The following steps will detail the changes needed when porting an out of the box example from the SDK such as basic_ble:

Note

This porting method might be more complex for customer specific projects. The following steps are the minimum set of changes required to port a project from CC23xx or CC27xx SDK 8.20 to CC23xx or CC27xx SDK 8.40.

Open the ProjectSpec file in a text editor and modify the product definition line to reflect the new SDK revision and the corresponding SysConfig revision. products="com.ti.SIMPLELINK_LOWPOWER_F3_SDK:x.xx.xx.xx;sysconfig:x.xx.x" Also update line cgtVersion="TICLANG_x.x.x" if it exists in the file. Refer to the Dependencies section in the SDK release notes for the correct SysConfig (and compiler) version. The SDK release notes may be found in {SDK_INSTALL_DIR}/docs/simplelink_mcu_sdk/release_notes_coresdk_lpf3_x_xx_xx_xx.html
In the ProjectSpec file, add the following line right before ${CG_TOOL_ROOT}/bin/tiarmobjcopy -O ihex ${BuildArtifactFileName} ${BuildArtifactFileBaseName}.hex inside the postBuildStep section:
- ${COM_TI_SIMPLELINK_LOWPOWER_F3_SOURCE_SDK_INSTALL_DIR}/tools/common/crc_tool/crc_tool patch-image --elf ${BuildArtifactFileBaseName}.out --symbol-prefix ti_utils_build_GenMap_sym_CRC_CCFG -o ${BuildArtifactFileBaseName}.out;

To learn more information about ProjectSpec files, please reference ProjectSpec Documentation.

It is also possible to migrate a project only using Code Composer Studio interface. The following steps will detail the changes needed when porting an out of the box example from the SDK such as basic_ble:

Import the project into Code Composer Studio.
In order to modify the SDK version and corresponding SysConfig version, do right click on the imported project folder inside the Project Explorer. Go to General and select Products and choose the SimpleLink Low Power F3 SDK version as well as the SysConfig version. Refer to the Dependencies section in the SDK release notes for the correct SysConfig (and compiler) version. The SDK release notes may be found in {SDK_INSTALL_DIR}/docs/simplelink_mcu_sdk/release_notes_coresdk_lpf3_x_xx_xx_xx.html

Figure 201. Code Composer Studio - Change SDK and SysConfig Version.¶

In order to add the postbuild steps, right click on the imported project and select Properties. Search for Build → Steps → Post-build steps and include the following line:
- ${COM_TI_SIMPLELINK_LOWPOWER_F3_SOURCE_SDK_INSTALL_DIR}/tools/common/crc_tool/crc_tool patch-image --elf ${BuildArtifactFileBaseName}.out --symbol-prefix ti_utils_build_GenMap_sym_CRC_CCFG -o ${BuildArtifactFileBaseName}.out

Legacy Porting¶

Warning

The following section covers a legacy porting method. Current SDK porting does not require this process and should instead see Porting Bluetooth LE Projects.

For this guide, a peripheral project from CC23xx or CC27xx SDK 8.20 will be ported over to CC23xx or CC27xx SDK 8.40. The recommended approach is to start with the Basic BLE project on CC23xx or CC27xx SDK 8.40 and modify the base configuration to match the peripheral configuration used in the CC23xx or CC27xx SDK 8.20 project. Afterwards, the custom application code should be transferred to the new project.

Import a CC23xx or CC27xx SDK 8.40 Basic BLE project.
Change the default Basic BLE project configuration options in the BLE Module present in SysConfig to match the configuration used in the CC23xx or CC27xx SDK 8.20 project.
Transfer all custom application logic from the CC23xx or CC27xx SDK 8.20 into the CC23xx or CC27xx SDK 8.40 Basic BLE project.
Move any profiles and services that the application is using to the CC23xx or CC27xx SDK 8.40 project.
Transfer the SysConfig settings either visually through the GUI or open both the old and the new project .syscfg files and copy-paste the desired settings.
If necessary, update the project to use the newer TI drivers that are supplied with the SimpleLink Low Power F3 SDK. Additional details are provided in A Few Noteworthy Changes from CC23xx or CC27xx SDK 8.20 to CC23xx or CC27xx SDK 8.40.
Refer to the Core SDK release notes for additional information and the FreeRTOS examples included with SimpleLink Low Power F3 SDK. The Core SDK release notes may be found in {SDK_INSTALL_DIR}/docs/simplelink_mcu_sdk/release_notes_coresdk_lpf3_x_xx_xx_xx.html

For additional information on how CC23xx or CC27xx SDK 8.40 uses FreeRTOS see FreeRTOS (RTOS Kernel) Overview.

For any utilized TI Drivers, review TI Drivers API Reference.

A Few Noteworthy Changes from CC23xx or CC27xx SDK 8.20 to CC23xx or CC27xx SDK 8.40¶

You can follow the guide above without addressing these updates; they are listed for your information only. All fine grained details might not be mentioned. Please refer to the specific example you need to port and do a compare between the old and new project files. Please refer to the BLE5-Stack Release Notes for all the details.