There are a number of convention changes from µC/OS-II to µC/OS-III. The most notable is the use of CPU-specific data types. The table below shows the differences between the data types used in both kernels.
Another convention change is the use of the acronym “ CFG ” which stands for configuration. Now, all #define configuration constants and variables have the “ CFG ” or “ Cfg ” acronym in them as shown in the table below. This table shows the configuration constants that have been moved from os_cfg.h to os_cfg_app.h . This is done because µC/OS-III is configurable at the application level instead of just at compile time as with µC/OS-II.
The table belowshows additional configuration constants added to os_cfg.h , while several µC/OS-II constants were either removed or renamed.