• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 77 subscribers
  • Views 2259 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

dco settings for migration from msp430f1491 to msp430f2416

nehalsol
Prodigy 60 points
Other Parts Discussed in Thread: MSP430F1491, MSP430F2416

Hi guys,

 

I am new to forum and new to TI processors. our current project is migration from msp430f1491 to msp430f2416. 

at one point in the code DCO,BCSCTL1 and BCSCTL2 are assigned to proper value for getting frequency of 1.2 MHz. but during migration the according setting from datasheet doesn't work. 

msp430f2416 has one extra register BCSCTL3 given. do i have to initialized it too? i haven't done any adding for that register.

 

if somebody can guide me it would be a greate help.

 

thanks 

nehal

  • 0
    TI__Mastermind 23790 points

    Hi,

    The BCSCTL3 register only is used to initialize the external crystal applied, if any. If you are not using an external crystal on XIN/XOUT or XT2, then this register can be left alone. Please see page 301 of the User's Guide for more info: http://focus.ti.com/lit/ug/slau144e/slau144e.pdf

    Are you using an external crystal to increase the precision of the DCO? If not the best way to determine the correct frequency is to do so experimentally. The DCO spec in the datasheet gives only frequency ranges, so experimentation is needed to get specific frequencies. It should also be noted that the DCO varies with both supply voltage as well as temperature.

**Attention** This is a public forum