I'm a newbie.When I was writting a program for msp430f4260 to start the LFXT1(8MHZ) in a High frequency mode.
I came to see something in the msp430f4xx family user's guide that really confused me. It says :
SELMx Bits4−3 (in FLL_CTL1, FLL+ Control Register 1)
Select MCLK. These bits select the MCLK source. Not present in MSP430x41x, MSP430x42x devices.
00 DCOCLK
01 DCOCLK
10 XT2CLK
11 LFXT1CLK
"Not present "? Is that means we can only use DCOCLK as the MCLK?
In addition,can you help to see is there any problem with the main C program below?(The belowing program dose not make the MCU work at 8MHZ)
WDTCTL = WDTPW + WDTHOLD; //stop the watchdog
FLL_CTL1 |=BIT6+BIT4+BIT3; //CLOSE SMCLK,Choose LFXT1CLK for MCLK
FLL_CTL0 |=BIT6; //set LFXT1 to High frequency mode,
P1SEL |=BIT1;
P1DIR |=BIT1; //MCLK =P1.1,convienient for test