SLAAES9 March   2025 MSP430FR5043 , MSP430FR6005 , MSP430FR6007 , MSP430FR6043 , MSP430FR6045 , MSP430FR6047

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Flow Meter Measurement Theory
    1. 2.1 TOF Measurement Algorithm Implementation
      1. 2.1.1 AbsTOF Calculation Method – Lobe
      2. 2.1.2 AbsTOF Calculation Method – Hilbert Wide
      3. 2.1.3 dTOF Calculation Method - Cross-Correlation
        1. 2.1.3.1 Get a High-Precision dTOF Result
        2. 2.1.3.2 Optimization in Cross-Correlation Method
    2. 2.2 Differences between ADC Approach and TDC Approach
  6. 3MSP430 MCUs for USS Application
    1. 3.1 USS Module
    2. 3.2 Differences Between USS and USS_A Module
    3. 3.3 Software Implementation on MSP430 MCUs
  7. 4Hardware Design Flow
    1. 4.1 Schematics
      1. 4.1.1 Water Meter Schematic – MSP430FR6047 and MSP430FR6007
      2. 4.1.2 Water Meter Schematic – MSP430FR6043 and MSP430FR5043
      3. 4.1.3 Gas Meter Schematic – MSP430FR6043 and MSP430FR5043
    2. 4.2 PCB Layout Guide
  8. 5Software Design Guide
    1. 5.1 USS Demo Projects and Related Resources
    2. 5.2 Demo Project Instruction
      1. 5.2.1 Files in Demo Project
      2. 5.2.2 Properties Setting in Demo Project
  9. 6Summary
  10. 7References

USS Module

The USS module is designed for analog-to-digital (ADC) converters based on ultrasonic sensing technology in various measurement applications. Figure 3-1 shows the block diagram of USS module.

 USS Block Diagram Figure 3-1 USS Block Diagram

The USS is a sophisticated system that consists of the following four submodules. USS_A is an extended variant of the original USS module and features SAPH_A instead of the SAPH module. Because USS_A is a superset of USS, USS_A is specifically named only when describing features that differ between USS and USS_A.

The main devices integrated with the USS module and the major differences between them are listed in Table 3-1. For more details, see also the device data sheet and user's guide.

Table 3-1 MSP430 MCUs with USS Module
MCU Devices FRAM

LCD

USS Module

Application

Performance

MSP430FR6005

128 kB

Yes

USS

Water meter

Normal

MSP430FR6007

256 kB

Yes

USS

Water meter

Normal

MSP430FR6045

128 kB

Yes

USS

Water meter

High

MSP430FR6047

256 kB

Yes

USS

Water meter

High

MSP430FR5043

64 kB

No

USS_A

Water & Gas meter

High

MSP430FR6043

64 kB

Yes

USS_A

Water & Gas meter

High