What situation in MSP430 processors start up will damage its program?

If device is able to start/run program stored in flash, only manipulation with flash controller during program execution can damage code itself.

Sunglin Chen said:

Does anyone know what situation in MSP430 processors start up will damage its program which have been downloaded in the processor?

Do you have some reason to believe that your program has been "damaged"?

If you (think you) do, how do you know that it's just  the program - rather than any other part(s) of the device?

zrno soli said:

only manipulation with flash controller during program execution can damage code itself

Not sure that's exactly true.

Any stress (mechanical, thermal, electrical) beyond the specified maximum limits could cause damage to the chip - which could include damage to the Flash

Sunglin Chen said:

Does anyone know what situation in MSP430 processors start up will damage its program which have been downloaded in the processor?

MSP activates a strong radiation source that radiates it?

Hi Andy,

I am sure that only program/firmware have been destroyed when I used KA78R33 as a power source. If I connect the Vcc of MSP430 to the Vout of KA78R33, which is 3.3V power, the MSP430 doesn't work anymore, even I change the power source with a power supply to active the MSP430.  But If I download the program again and use power supply as the power source, it work as what I expected.  Now, if I change the power with KA78R33, it doesn't work. 

Sunglin.