Hi, 
some newbie questions...

I want to use the ADC10 on an EMG-signal sampled at 1kHz, but find 
it abit confusing which register settings need to be done regarding 
selecting analog input. I want to use P2.0 (A0) as analog input 
channel, is it correct to set the INCH0 in ADC10CTL1, and ADC10AE0 
in ADC10AE and in addition set P2SEL |= 0x01 and P2DIR &= ~0x01 
(details, details...)?  
What is the function of the ADC10AE register? In the user's guide, 
it says that ADC10AE should be disabled to eliminate parasitic 
current occuring on the digital CMOS port when an analog signal is 
applied, but shouldn't the input port buffer of A0 be enabled since 
I'm using it?

And, (this is not strictly an MSP430 question, but figured I'd try 
my luck ;) how do I estimate the external resistance Rs when 
determining Tsample when I have an LPfilter of ~0.5kHz (using the 
INA321 or OPA336) and an amplifier (also INA321) in addition to 
capacitors and resistors on the line on A0? 

Last, is it possible to keep the CPU in LPM3 (with only ACLK active) 
while performing ADC and using the DTC to transfer data and have a 
comparator-function (realized in SW) going? Or will some interrupts 
force it into higher power modes? (think I read it somewhere in the 
user's guide)

This was a bit much, hope at least some of it is understandable!

VERY thankful for any response!

Cheers,

lady_k