MSP430FR2311: General Questions

Ah ok that makes sense. Thank you for the info. A follow up question to that would be whats the best way to find find the neutral point on my pot? Do I write a program to print the value to the serial monitor? or can I calculate it some how?
Also I want to set a "dead zone" so when it gets to a certain threshold it turns off. How do I set those limits?
I just want to reiterate I have taken a few courses on the basics of programming the MSP430 line but this is my first attempt at actually doing a project on my own with no instructions. I really want to learn how to do this and I have already spent countless hours reading and taking classes and now my next step is to learn by doing. I just don't have anyone I can learn from except the internet so any help you guys/girls can give me will be much appreciated.
Lastly the different sampling methods:

ADC SINGLECHANNEL [Default] - one-time
conversion of a single channel into a single memory
buffer
ADC SEQOFCHANNELS - one time conversion of
multiple channels into the specified starting memory
buffer and each subsequent memory buffer up until the
conversion is stored in a memory buffer dedicated as
the end-of-sequence by the memory's control register
ADC REPEATED SINGLECHANNEL - repeated
conversions of one channel into a single memory
buffer
ADC REPEATED SEQOFCHANNELS - repeated
conversions of multiple channels into the specified
starting memory buffer and each subsequent memory
buffer up until the conversion is stored in a memory
buffer dedicated as the end-of-sequence by the
memory's control register
Modified bits are ADCCONSEQx of ADCCTL1
register.

Should I used the Singlechannel or the Repeated Singlechannel to measure the pot?

Thanks again for the reply! Look forward to learning more about the MSP430.

One other question I have run in to is what exactly does this mean?

interruptMask is the bit mask of the memory buffer interrupt sources to be enabled.

Mask value is the logical OR of any of the following:

ADC OVERFLOW INTERRUPT - Interrupts when a new conversion

is about to overwrite the previous one

ADC TIMEOVERFLOW INTERRUPT - Interrupts when a new

conversion is starting before the previous one has finished

ADC ABOVETHRESHOLD INTERRUPT - Interrups when the input

signal has gone above the high threshold of the window

comparator

ADC BELOWTHRESHOLD INTERRUPT - Interrupts when the input

signal has gone below the low threshold of the low window

comparator

ADC INSIDEWINDOW INTERRUPT - Interrupts when the input

signal is in between the high and low thresholds of the window

comparator

ADC COMPLETED INTERRUPT - Interrupt for new conversion data

in the memory buffer

Like what is an example of how to write that? In the provided ADC example they have has the following for setting up the memory buffer

//Enable Memory Buffer interrupt
ADC10_A_clearInterrupt(ADC10_A_BASE,
ADC10IFG0);
ADC10_A_enableInterrupt(ADC10_A_BASE,
ADC10IE0);

The highlighted parts are what I have a question about. If someone can explain to me how they get the highlighted values from the information provided in the driverlib users guide (the info in bold). 

Thanks you

Hey Jacamo,

I think you should first start with single channel conversions. Eventually, you would do 2 single channel conversions, one with each pot. Every time you want to measure it in your software loop, you would just trigger a new conversion.

As for finding the middle point, that's going to depend on your circut and yout pot. You'll need to creat a resistor devider with the pot, then measure the voltage output range coming from the pot, etc. That voltage range will corispond with ADC readings, so those you probably want to check either in the debugger or via the terminal as you suggested.

Let's say your reads were 0x00 to 0xFF, Then 0x7F would be your mid point. You can add a dead zone in software.

I'm sure there are some pot controlled demos somewhere online that could give you a baseline.

Thanks,
JD

I understand the basic concept behind it I just don't know how to implement it in software. I guess I just don't have enough experience to know how to write code from scratch. Any suggestions on a good resource for someone to learn how to use the C language for the MSP430?
All of the classes I have taken are mostly Copy and Paste code from the instructions with little modification. This helped me understand how the MCU works but as far as the code goes I am still trying to figure all of that out.
I have so far set up the ADC but have to still figure out how to actually use it. I will go with your suggestion on trying to get one working first and then move to two.
I will also look around online to see if I can find any examples.
Thanks for you help I really appreciate it!

This was from the example from the DriverLib for the MSP430fr2xx4xx family. Specifically the ADC peripheral examples, both of them use the same thing. I understand what it was doing It was just confusing that they did it that way and also didn't understand why you would want to choose more than one of those settings.
I discovered the API Programmers Guide for the driverlib and that has helped out a ton.
Again Thanks for the response