APP_FEATURE_INIT 和 SYS_RUN区别？

/**

 * @brief Identifies the entry for initializing and starting a system running phase by the

 * priority 2.

 *

 * This macro is used to identify the entry called at the priority 2 in the system startup

 * phase of the startup process. \n

 *

 * @param func Indicates the entry function for initializing and starting a system running phase.

 * The type is void (*)(void).

 */

#define SYS_RUN(func)

 

/**

 * @brief Identifies the entry for initializing and starting an application-layer feature by the

 * priority 2.

 *

 * This macro is used to identify the entry called at the priority 2 of the application-layer

 * feature phase of the startup process. \n

 *

 * @param func Indicates the entry function for initializing and starting an application-layer

 * feature. The type is void (*)(void).

 */

#define APP_FEATURE_INIT(func)
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