Hi, I am new to microprocessors and I am a little bit confused on conversion modes of SD16 module.
There are 5 analog differential input pairs on MSP430F4270. According to the document SLAU056F - msp430x+xxFamilyUserGuide.pdf, converted data is continuously being written to register SD16MEM. (See Fig Figure 27−7 on page 27-12). Now my question is,
- are these values from continuous conversions written to the same memory? (So, after continous conversion is completed and SD16SC bit is cleared by software, if I read the memory, I will only have the latest conversion result.)
- or, do I need to sum up all values converted during continuous conversion and calculate the arithmetic mean myself in the code? Or does it already do it?
- I want to measure and display 3 different values. Is it possible to make synchronous conversions on different input pairs? Is there only one SD16Mem register? Or are there different registers for each input pair?
- Is it possible to use PGA for each input pair? ( A0-A4 )
Any help is appreciated!