SPRADD8 November   2024 F29H850TU , F29H859TU-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction to Real-Time Control
  5. 2C29 CPU and Key Features
    1. 2.1 Parallel Architecture and Compiler Entitlement
  6. 3C29 Performance Benchmarks
    1. 3.1 Signal Chain Benchmark with ACI Motor Control
    2. 3.2 Real-time Control and DSP Performance
      1. 3.2.1 Examples and Factors Contributing to Results
        1. 3.2.1.1 Saturation (or Limiting) Example
        2. 3.2.1.2 Dead Zone Example
        3. 3.2.1.3 Space Vector Generation (SVGEN) Example
        4. 3.2.1.4 Software Pipelining
      2. 3.2.2 Customer Control and Math Benchmarks
    3. 3.3 General Purpose Processing (GPP) Performance
      1. 3.3.1 Examples and Factors Contributing to Results
        1. 3.3.1.1 Discontinuity Management
        2. 3.3.1.2 Switch() Example
    4. 3.4 Model-Based Design Benchmarks
    5. 3.5 Application Benchmarks
      1. 3.5.1 Single Phase 7kW OBC Description
      2. 3.5.2 Vienna Rectifier-Based Three Phase Power Factor Correction
      3. 3.5.3 Single-Phase Inverter
      4. 3.5.4 Machine Learning
    6. 3.6 Flash Memory Efficiency
    7. 3.7 Code-size Efficiency
  7. 4Summary
  8. 5References

3.4 Model-Based Design Benchmarks

Customers are increasingly shifting towards model-based design and auto code generation. Thus, it is important to understand the performance expected with auto code generation tools, such as Embedded Coder from The Mathworks. At the time of this publication, the C29 is not yet supported in a released version of Embedded Coder, therefore C code generated for the C28 CPU is used for benchmarking. The Sensorless Field Oriented Control based motor control model consists of closed loop control and a Sliding Mode Observer (SMO). The generated code has real-time control components, as well as GPP components. Model-Based Design Benchmarking shows the benchmarking results, which illustrates the performance of the C29 is more than twice better (in cycles) than the Cortex-M4 based competition MCU.

Table 3-2 Model-Based Design Benchmarking
MCUCyclesPerformance Ratio
#6 (Cortex-M4)8771
F29H85x (C29)3932.23
F29H85x (C29)312 (with some hand optimization of generated code)2.81