MSP430F6779A: initial variable as the assignment the after MCU reset

Vasu Khwanyuen

Part Number: MSP430F6779A

Hi,

Did the msp430 MCU initial variable as the assignment value after MCU reset? (we setting use setting complier --zero_init off with volatile data)

e.g.

volatile static uint16_t TimeOut = 4096; // initial variable as the assignment the after MCU reset?

Note:

IDE version: Code Composer Studio 10.1.1.00004

Compiler version: TI V20.2.1.LTS

Thank,

Vasu Khwanyuen

over 4 years ago

0 Xiaodong LI over 4 years ago

TI__Mastermind 22925 points

Hi Vasu Khwanyuen

The TimeOut value should be 4096 after MCU reset because "volatile static" is used.

Thanks!

0 Vasu Khwanyuen over 4 years ago in reply to Xiaodong LI

Intellectual 455 points

Hi Xiaodong LI

what happened to the variable when

Wakeup from LPM3 ?
Software BOR (PMMSWBOR) ?

Thank,

Vasu Khwanyuen

0 Xiaodong LI over 4 years ago in reply to Vasu Khwanyuen

TI__Mastermind 22925 points

Hi Vasu Khwanyuen

This value (4096) will be keep from LPM3 and after BOR because this is "volatile static". this value should be assign on flash by C compiler.

Thanks!

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MSP430F6779A: initial variable as the assignment the after MCU reset