ACLK IN MSP430

Manish,

It's helpful if you detail which TI part you are using since the register settings can different between families.  As for the power on source for ACLK there isn't one.  On a POR the MSP430 is sourced from the DCO at ~1MHz with all other clocks disabled.

Cheers,
Darren

Hello Darren 

We are using MSP430G2102 in our project.

We have'nt connected any extenal crystal.

We want to generate ACLK by internal VLOCLK.

Pls provide the register setting .

Thanks 

Manish 

manish bhatt1 said:

We are using MSP430G2102 in our project.

We have'nt connected any extenal crystal.

We want to generate ACLK by internal VLOCLK.

Figure 5-1, Page 274 of the User's Guide shows you how the BCS is wired, including the controlling register bits. Later in that chapter are the register definitions. You should be able to get from Point A to B with that information.

See the 2x family users guide, “basic clock system plus” (BCS+) chapter.
It shows you the default configuration of all registers as well as which bits to change for the desired configuration.
It also has a nice diagram about how the clock system works.
And of course lots of text describing the details.