Hello,
INT_SYS_DisableIRQGlobal / INT_SYS_EnableIRQGlobal functions are included in SDK and will disable/enable the global interrupt by calling the core API. These functions are also available without using FreeRTOS.
The macros below are FreeRTOS macros.
taskENTER_CRITICAL /taskEXIT_CRITICAL and taskDISABLE_INTERRUPTS/taskENABLE_INTERRUPTS.
The big difference is:
"Calls to taskENTER_CRITICAL() and taskEXIT_CRITICAL() are designed to nest. Therefore, a critical section will only be exited when one call to taskEXIT_CRITICAL() has been executed for every preceding call to taskENTER_CRITICAL()."
For more detail see this link: This page describes the FreeRTOS taskENTER_CRITICAL() and taskEXIT_CRITICAL() API macros
Also, this question on FreeRTOS forum was discussed:
difference between taskENTER_CRITICAL and tas - FreeRTOS
I hope it helps.
Best regards,
Diana
