MSP430 Timer calculation

Haresh:

Check out chapter 5 of http://processors.wiki.ti.com/index.php/Getting_Started_with_the_MSP430G2553_Value-Line_LaunchPad_Workshop

It should get you started on setting up the timer to do the 5 msec delay that you need.

(Frequency of Timer Clock in Hertz) * (Desired Delay in seconds) = (Required Timer Count)

Note that you can scale this equation (ie use frequency in Kilo-Hertz and delay in milli-seconds).

Timer can be configured to use one of a few different clocks, so you have to know how you are setting it up (and the rest of your clock tree as well) to know what to use for frequency.

You also have to make sure that the number output of the equation doesn't exceed 65535, as the capture/compare registers in the timer are only 16-bits.