Utility of protecting flash ?

[Gizzzmo]

I've seen the FPROT byte in the datasheet but i wonder what's his utility. Is it necessary to protect some areas of the flash ?

Thx

[rhinoceroshead]

It's there so you can erase the Flash without erasing a bootloader (if you use one), and also so that you don't accidentally erase your program if you have buggy code that erases Flash.

[rhinoceroshead]

You can do anything except program and erase Flash in the addresses protected by the FPROT register.

You CAN still erase that Flash if you use the BDM.

[Gizzzmo]

This protection works if the code is executed from the flash ? from the ram ?

If i disable the protection will the interrupt vector table still be write protected ?

Thx

[rhinoceroshead]

This protection works regardless of where code is being executed from.  If you disable this protection, the interrupt vector table is NOT write protected and can be programmed using the Flash programming algorithm for that particular device.

[Gizzzmo]

To be more accurate, i want to know what can't i do in a protected area.