MSP-EXP430F5529LP: Where is the __bic_SR_register definition?

Dahun Kim

Prodigy 150 points

Part Number: MSP-EXP430F5529LP
Other Parts Discussed in Thread: MSP430WARE

Hello, Texas Team or Experts

I have studied about FLL clock.Then, I read UCS_initFLL definition in UCS source code. But there is a problem.

The problem is where is Definition of Function "__bic_SR_register( )".

I can't find the definition of function.

Can someone help me?

over 1 year ago

0 Krishn_JI over 1 year ago

Expert 1975 points

Did you have downloaded any library? can you explain in more detail , are you dealing with any low power mode?

0 Dahun Kim over 1 year ago in reply to Krishn_JI

Prodigy 150 points

Yeap. I have downloaded in MSP430ware - driverlib - MSp430F5xx_6xx using CCS resource explorer.

My project was empty project that added driverlib library in MSP430F5xx_6xx.

Additionally, I have stutdied in file of MSP430 Design Guide .

+1 David Schultz over 1 year ago

Guru 18875 points

In GCC that is defined in the file in430.h. (As a macro using asm()) It isn't used nearly as much as _bic_SR_register_on_exit(x)

+1 Bruce McKenney47378 over 1 year ago

Guru 88700 points

For the TI compiler, this function is declared in "intrinsics.h" (normally included by msp430.h).

When I went looking for the definition some years ago, I hit a wall at that .h file, and concluded that "intrinsic" means "only the compiler knows". It's not a complex function, and as David says you can probably understand by looking at the GCC definition. [See also compiler user guide (SLAU132Y) Table 6-5.]

0 Ashish Mishra over 1 year ago in reply to Bruce McKenney47378

Intellectual 370 points

As per the TI compiler user guide "BIC mask, SR" is the assembly generated by the compiler. I have used the same asm code for the same purpose as we were not suppose to use any compiler/library defined routines.

As suggest by Bruce, for more details you can look into section 6.8 of slau132y doc.

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MSP-EXP430F5529LP: Where is the __bic_SR_register definition?