Tool/software:
Hi champs,
I am asking this for our customer.
Is it possible to dynamically change flash allocation to CPU1/CPU2?
This can be useful for firmware update using only one kernel by CPU for programming all 5 flash banks.
For example,
Case 1:
// Normal state
Bank0/1/2 -> CPU1
Bank3/4 -> CPU2.
// Firmware update state
Stop all application
CPU1 holds CPU2 in reset
CPU1 maps all 5 flash banks only to CPU1
CPU1 to erase and program all banks in combined binary or hex image.
CPU1 to software reset to normal state
Case 2:
Flash bank 4 accessed by CPU1 and CPU2 alternatively.
The user is responsible that CPU1 and CPU2 cannot access bank4 at the same time.
It's like a certain GPIOx is accessed by either CPU1 or CPU2 at a time.
Are the above cases viable?
