SLAA694A February   2016  – April 2016 MSP430BT5190 , MSP430BT5190 , MSP430F1122 , MSP430F1122 , MSP430F1132 , MSP430F1132 , MSP430F1222 , MSP430F1222 , MSP430F1232 , MSP430F1232 , MSP430F133 , MSP430F133 , MSP430F135 , MSP430F135 , MSP430F147 , MSP430F147 , MSP430F148 , MSP430F148 , MSP430F149 , MSP430F149 , MSP430F155 , MSP430F155 , MSP430F156 , MSP430F156 , MSP430F157 , MSP430F157 , MSP430F1610 , MSP430F1610 , MSP430F1611 , MSP430F1611 , MSP430F1612 , MSP430F1612 , MSP430F167 , MSP430F167 , MSP430F168 , MSP430F168 , MSP430F169 , MSP430F169 , MSP430F2002 , MSP430F2002 , MSP430F2012 , MSP430F2012 , MSP430F2112 , MSP430F2112 , MSP430F2122 , MSP430F2122 , MSP430F2132 , MSP430F2132 , MSP430F2232 , MSP430F2232 , MSP430F2234 , MSP430F2234 , MSP430F2252 , MSP430F2252 , MSP430F2254 , MSP430F2254 , MSP430F2272 , MSP430F2272 , MSP430F2274 , MSP430F2274 , MSP430F2274-EP , MSP430F2274-EP , MSP430F233 , MSP430F233 , MSP430F235 , MSP430F235 , MSP430F2410 , MSP430F2410 , MSP430F2416 , MSP430F2416 , MSP430F2417 , MSP430F2417 , MSP430F2418 , MSP430F2418 , MSP430F2419 , MSP430F2419 , MSP430F247 , MSP430F247 , MSP430F248 , MSP430F248 , MSP430F249 , MSP430F249 , MSP430F249-EP , MSP430F249-EP , MSP430F2616 , MSP430F2616 , MSP430F2617 , MSP430F2617 , MSP430F2618 , MSP430F2618 , MSP430F2619 , MSP430F2619 , MSP430F2619S-HT , MSP430F2619S-HT , MSP430F4132 , MSP430F4132 , MSP430F4152 , MSP430F4152 , MSP430F435 , MSP430F435 , MSP430F436 , MSP430F436 , MSP430F437 , MSP430F437 , MSP430F438 , MSP430F438 , MSP430F439 , MSP430F439 , MSP430F447 , MSP430F447 , MSP430F448 , MSP430F448 , MSP430F449 , MSP430F449 , MSP430F4616 , MSP430F4616 , MSP430F4617 , MSP430F4617 , MSP430F4618 , MSP430F4618 , MSP430F4619 , MSP430F4619 , MSP430F5132 , MSP430F5132 , MSP430F5152 , MSP430F5152 , MSP430F5172 , MSP430F5172 , MSP430F5222 , MSP430F5222 , MSP430F5224 , MSP430F5224 , MSP430F5229 , MSP430F5229 , MSP430F5242 , MSP430F5242 , MSP430F5244 , MSP430F5244 , MSP430F5247 , MSP430F5247 , MSP430F5249 , MSP430F5249 , MSP430F5253 , MSP430F5253 , MSP430F5255 , MSP430F5255 , MSP430F5257 , MSP430F5257 , MSP430F5259 , MSP430F5259 , MSP430F5304 , MSP430F5304 , MSP430F5308 , MSP430F5308 , MSP430F5309 , MSP430F5309 , MSP430F5310 , MSP430F5310 , MSP430F5324 , MSP430F5324 , MSP430F5325 , MSP430F5325 , MSP430F5326 , MSP430F5326 , MSP430F5327 , MSP430F5327 , MSP430F5328 , MSP430F5328 , MSP430F5328-EP , MSP430F5328-EP , MSP430F5329 , MSP430F5329 , MSP430F5333 , MSP430F5333 , MSP430F5335 , MSP430F5335 , MSP430F5336 , MSP430F5336 , MSP430F5338 , MSP430F5338 , MSP430F5340 , MSP430F5340 , MSP430F5341 , MSP430F5341 , MSP430F5342 , MSP430F5342 , MSP430F5358 , MSP430F5358 , MSP430F5359 , MSP430F5359 , MSP430F5418A , MSP430F5418A , MSP430F5419A , MSP430F5419A , MSP430F5435A , MSP430F5435A , MSP430F5436A , MSP430F5436A , MSP430F5437A , MSP430F5437A , MSP430F5438A , MSP430F5438A , MSP430F5438A-EP , MSP430F5438A-EP , MSP430F5504 , MSP430F5504 , MSP430F5505 , MSP430F5505 , MSP430F5506 , MSP430F5506 , MSP430F5507 , MSP430F5507 , MSP430F5508 , MSP430F5508 , MSP430F5509 , MSP430F5509 , MSP430F5510 , MSP430F5510 , MSP430F5521 , MSP430F5521 , MSP430F5522 , MSP430F5522 , MSP430F5524 , MSP430F5524 , MSP430F5525 , MSP430F5525 , MSP430F5526 , MSP430F5526 , MSP430F5527 , MSP430F5527 , MSP430F5528 , MSP430F5528 , MSP430F5529 , MSP430F5529 , MSP430F5633 , MSP430F5633 , MSP430F5634 , MSP430F5634 , MSP430F5635 , MSP430F5635 , MSP430F5636 , MSP430F5636 , MSP430F5637 , MSP430F5637 , MSP430F5638 , MSP430F5638 , MSP430F5658 , MSP430F5658 , MSP430F5659 , MSP430F5659 , MSP430F6433 , MSP430F6433 , MSP430F6435 , MSP430F6435 , MSP430F6436 , MSP430F6436 , MSP430F6438 , MSP430F6438 , MSP430F6458 , MSP430F6458 , MSP430F6459 , MSP430F6459 , MSP430F6633 , MSP430F6633 , MSP430F6634 , MSP430F6634 , MSP430F6635 , MSP430F6635 , MSP430F6636 , MSP430F6636 , MSP430F6637 , MSP430F6637 , MSP430F6638 , MSP430F6638 , MSP430F6658 , MSP430F6658 , MSP430F6659 , MSP430F6659 , MSP430F67621 , MSP430F67621 , MSP430F67621A , MSP430F67621A , MSP430F67641 , MSP430F67641 , MSP430F6766A , MSP430F6766A , MSP430F6776 , MSP430F6776 , MSP430F6777 , MSP430F6777 , MSP430F6778 , MSP430F6778 , MSP430F6779 , MSP430F6779 , MSP430FG437 , MSP430FG437 , MSP430FG438 , MSP430FG438 , MSP430FG439 , MSP430FG439 , MSP430FG4616 , MSP430FG4616 , MSP430FG4617 , MSP430FG4617 , MSP430FG4618 , MSP430FG4618 , MSP430FG4619 , MSP430FG4619 , MSP430FR2032 , MSP430FR2032 , MSP430FR2033 , MSP430FR2033 , MSP430FR2311 , MSP430FR2311 , MSP430FR2433 , MSP430FR2433 , MSP430FR2532 , MSP430FR2532 , MSP430FR2533 , MSP430FR2533 , MSP430FR2632 , MSP430FR2632 , MSP430FR2633 , MSP430FR2633 , MSP430FR4131 , MSP430FR4131 , MSP430FR4132 , MSP430FR4132 , MSP430FR4133 , MSP430FR4133 , MSP430FR5720 , MSP430FR5720 , MSP430FR5721 , MSP430FR5721 , MSP430FR5724 , MSP430FR5724 , MSP430FR5725 , MSP430FR5725 , MSP430FR5728 , MSP430FR5728 , MSP430FR5729 , MSP430FR5729 , MSP430FR5730 , MSP430FR5730 , MSP430FR5731 , MSP430FR5731 , MSP430FR5734 , MSP430FR5734 , MSP430FR5735 , MSP430FR5735 , MSP430FR5738 , MSP430FR5738 , MSP430FR5739 , MSP430FR5739 , MSP430FR5739-EP , MSP430FR5739-EP , MSP430FR5847 , MSP430FR5847 , MSP430FR58471 , MSP430FR58471 , MSP430FR5848 , MSP430FR5848 , MSP430FR5849 , MSP430FR5849 , MSP430FR5857 , MSP430FR5857 , MSP430FR5858 , MSP430FR5858 , MSP430FR5859 , MSP430FR5859 , MSP430FR5867 , MSP430FR5867 , MSP430FR58671 , MSP430FR58671 , MSP430FR5868 , MSP430FR5868 , MSP430FR5869 , MSP430FR5869 , MSP430FR5870 , MSP430FR5870 , MSP430FR5872 , MSP430FR5872 , MSP430FR58721 , MSP430FR58721 , MSP430FR5887 , MSP430FR5887 , MSP430FR5888 , MSP430FR5888 , MSP430FR5889 , MSP430FR5889 , MSP430FR58891 , MSP430FR58891 , MSP430FR5922 , MSP430FR5922 , MSP430FR59221 , MSP430FR59221 , MSP430FR5947 , MSP430FR5947 , MSP430FR59471 , MSP430FR59471 , MSP430FR5948 , MSP430FR5948 , MSP430FR5949 , MSP430FR5949 , MSP430FR5957 , MSP430FR5957 , MSP430FR5958 , MSP430FR5958 , MSP430FR5959 , MSP430FR5959 , MSP430FR5967 , MSP430FR5967 , MSP430FR5968 , MSP430FR5968 , MSP430FR5969 , MSP430FR5969 , MSP430FR5969-SP , MSP430FR5969-SP , MSP430FR59691 , MSP430FR59691 , MSP430FR5970 , MSP430FR5970 , MSP430FR5972 , MSP430FR5972 , MSP430FR59721 , MSP430FR59721 , MSP430FR5986 , MSP430FR5986 , MSP430FR5987 , MSP430FR5987 , MSP430FR5988 , MSP430FR5988 , MSP430FR5989 , MSP430FR5989 , MSP430FR5989-EP , MSP430FR5989-EP , MSP430FR59891 , MSP430FR59891 , MSP430FR5994 , MSP430FR5994 , MSP430FR6820 , MSP430FR6820 , MSP430FR6822 , MSP430FR6822 , MSP430FR68221 , MSP430FR68221 , MSP430FR6870 , MSP430FR6870 , MSP430FR6872 , MSP430FR6872 , MSP430FR68721 , MSP430FR68721 , MSP430FR6877 , MSP430FR6877 , MSP430FR6879 , MSP430FR6879 , MSP430FR68791 , MSP430FR68791 , MSP430FR6887 , MSP430FR6887 , MSP430FR6888 , MSP430FR6888 , MSP430FR6889 , MSP430FR6889 , MSP430FR6920 , MSP430FR6920 , MSP430FR6922 , MSP430FR6922 , MSP430FR69221 , MSP430FR69221 , MSP430FR6927 , MSP430FR6927 , MSP430FR6928 , MSP430FR6928 , MSP430FR6970 , MSP430FR6970 , MSP430FR6972 , MSP430FR6972 , MSP430FR69721 , MSP430FR69721 , MSP430FR6977 , MSP430FR6977 , MSP430FR6979 , MSP430FR6979 , MSP430FR69791 , MSP430FR69791 , MSP430FR6987 , MSP430FR6987 , MSP430FR6988 , MSP430FR6988 , MSP430FR6989 , MSP430FR6989 , MSP430FR69891 , MSP430FR69891 , MSP430G2131 , MSP430G2131 , MSP430G2132 , MSP430G2132 , MSP430G2152 , MSP430G2152 , MSP430G2153 , MSP430G2153 , MSP430G2230 , MSP430G2230 , MSP430G2230-EP , MSP430G2230-EP , MSP430G2231 , MSP430G2231 , MSP430G2231-EP , MSP430G2231-EP , MSP430G2232 , MSP430G2232 , MSP430G2233 , MSP430G2233 , MSP430G2252 , MSP430G2252 , MSP430G2253 , MSP430G2253 , MSP430G2332 , MSP430G2332 , MSP430G2332-EP , MSP430G2332-EP , MSP430G2333 , MSP430G2333 , MSP430G2352 , MSP430G2352 , MSP430G2353 , MSP430G2353 , MSP430G2432 , MSP430G2432 , MSP430G2433 , MSP430G2433 , MSP430G2444 , MSP430G2444 , MSP430G2452 , MSP430G2452 , MSP430G2453 , MSP430G2453 , MSP430G2513 , MSP430G2513 , MSP430G2533 , MSP430G2533 , MSP430G2544 , MSP430G2544 , MSP430G2553 , MSP430G2553 , MSP430G2744 , MSP430G2744 , MSP430G2755 , MSP430G2755 , MSP430G2855 , MSP430G2855 , MSP430G2955 , MSP430G2955 , MSP430TCH5E , MSP430TCH5E

 

  1.   General Oversampling of MSP ADCs for Higher Resolution
    1.     Trademarks
    2. 1 Introduction
    3. 2 Oversampling Process
      1. 2.1 ADC Operation
      2. 2.2 Improving ADC Resolution
    4. 3 Hardware Description
      1. 3.1 DAC8560EVM
      2. 3.2 MSP-EXP430FR4133 and MSP-EXP432P401R Connections
    5. 4 Firmware Overview
      1. 4.1 Setting Constants
      2. 4.2 Running the Demonstration
      3. 4.3 Oversampling Method Extraction
    6. 5 Results
      1. 5.1 MSP-EXP430FR4133 and DAC8560 Oversampling
      2. 5.2 Silicon Results of Oversampling and Decimation on MSP432P401R
    7. 6 Conclusion
    8. 7 References
  2.   Revision History

3.2 MSP-EXP430FR4133 and MSP-EXP432P401R Connections

The example MSP430FR4133 firmware utilizes A3 as the ADC input to be oversampled, a 2.5-V Veref+ sourced from the DAC8560, UCB0 SPI for controlling DAC output values, and UCA0 UART to update the host PC with steps and ADC readings for further analysis. The MSP-EXP432P401R likewise uses A5, Veref+, UCA1 SPI, and UCA0 UART for the same purposes. More information on firmware specifics is provided in Section 4. Further details regarding each LaunchPad development kit can be found in their respective user's guides, the MSP430FR4133 LaunchPad Development Kit (MSP-EXP430FR4133) User's Guide (SLAU595) and the MSP432P401R LaunchPad Development Kit (MSP-EXP432P401R) User's Guide (SLAU597). Table 3 lists all essential connections between the MSP-EXP430FR4133 or MSP-EXP432P401R and DAC8560EVM for operating the demo.

Table 3. LaunchPad Development Kit Hardware Connections

DAC8560EVM MSP-EXP430FR4133 MSP-EXP432P401R
J6 1 (VCC) 3V3 3V3
J2 11 (SDI) 5.2 (UCB0SIMO) 2.6 (PM_UCA1SIMO)
J2 3 (SCLK) 5.1 (UCB0CLK) 2.5 (PM_UCA1CLK)
J2 1 (CS) 5.0 (UCB0STE) 2.4 (PM_UAC1STE)
W4 2 (VREF) 1.1 (Veref+) Veref+
J4 2 (VOUT) 1.3 (A3) 5.0 (A5)
J2 18 (GND) GND GND
J6 8 (+3.3VA) 3V3 3V3