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关于28069 Unlock the CSM的问题



在例程flash_programming中,有如下说明

  9. Optional: Unlock the CSM.

/*------------------------------------------------------------------
Unlock the CSM.
If the API functions are going to run in unsecured RAM
then the CSM must be unlocked in order for the flash
API functions to access the flash.

If the flash API functions are executed from secure memory
(L0-L3) then this step is not required.
------------------------------------------------------------------*/

是不是ramfuncs在28069的L0-L3 里就不需要加Unlock the CSM?

  • /*------------------------------------------------------------------
    Unlock the CSM.
    If the API functions are going to run in unsecured RAM
    then the CSM must be unlocked in order for the flash 
    API functions to access the flash.

    If the flash API functions are executed from secure memory 
    (L0-L3) then this step is not required.
    ------------------------------------------------------------------*/

    是不是ramfuncs在28069的L0-L3 里就不需要加Unlock the CSM?”

    Eric:

    你如果把flash API的函数放在ramfuncs, 且ramfuncs 放在RAML0~L3, 那么就不用解密。