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Hi
Now i used SDK RTM v4.0.2 Example Project about "csec_keyconfig“，In initFlashForCsecOperation Function montioned Flash partitioning for CSEc operation must only be ran with RAM configuration.
1.can i run some function in ram such as FLASH_DRV_DEFlashPartition，FLASH_DRV_CommandSequence ... or all project run in ram？
Yes, it is needed to do it in steps with reset in between.
thanks
but When conducting quantity production, is it necessary to first burn a program that runs entirely in RAM to partition Flash, and then burn the app？
This needs only first time to run from RAM (as flash partitioning needs to be done only once), so may run the whole project from RAM.
But in principle only flashing routines needs to run from RAM to avoid read-while-write issues.