SPRUJA3 November   2024 F29H850TU , F29H859TU-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Feature Differences Between F2837x, F2838x, F28P65x and F29H85x
    1. 1.1 F28x to F29x Feature Change Overview
  5. 2C29x Architecture
    1. 2.1 C29x Architecture Overview
      1. 2.1.1 Peripheral Interrupt Priority and Expansion (PIPE)
      2. 2.1.2 Safety and Security Module (SSU)
      3. 2.1.3 Real-Time DMA (RTDMA)
      4. 2.1.4 Lock-step Compare Module (LCM)
    2. 2.2 C28x vs C29x Architecture Overview
  6. 3PCB Design Consideration
    1. 3.1 VSSOSC
    2. 3.2 JTAG
    3. 3.3 VREF
  7. 4Feature Differences for System Consideration
    1. 4.1 New Features in F29H85x
      1. 4.1.1  Analog Subsystem
      2. 4.1.2  Data Logger and Trace (DLT)
      3. 4.1.3  Single Edge Nibble Transmission (SENT)
      4. 4.1.4  Waveform Analyzer Diagnostic (WADI)
      5. 4.1.5  EPWM
      6. 4.1.6  Bootrom
      7. 4.1.7  ERAD
      8. 4.1.8  XBAR
      9. 4.1.9  Error Signaling Module (ESM)
      10. 4.1.10 Error Aggregator
      11. 4.1.11 Hardware Security Module (HSM)
        1. 4.1.11.1 Cryptographic Accelerators
      12. 4.1.12 Safe Interconnect End-to-End (E2E) Safing
      13. 4.1.13 Critical MMR Safing With Parity
      14. 4.1.14 LPOST
    2. 4.2 Communication Module Changes
    3. 4.3 Control Module Changes
    4. 4.4 Analog Module Differences
    5. 4.5 Power Management
      1. 4.5.1 VREGENZ
      2. 4.5.2 Power Consumption
    6. 4.6 Memory Module Changes
    7. 4.7 GPIO Multiplexing Changes
  8. 5Software Development with F29H85x
    1. 5.1 Migration Report Generation Tool
  9. 6References

4.1.4 Waveform Analyzer Diagnostic (WADI)

The WADI blocks analyze signal waveforms and characterize pulse width, frequency, dead-band, phase shift. If the signal waveforms are analyzed to be incorrect, it creates a sequence of events to drive the signals to a safe state. WADI is primarily used for safety applications, where deviant waveforms applied to power switches can be detected and corresponding course of action can be either taken by WADI or MCU subsystem. Each WADI block can perform comparison between two signals and have the override capabilities of the signals. Safety mechanisms of WADI can be tuned with appropriate Safe State Sequencer (SSS) configurations. SSS creates a safe sequence of chained events depending on the signals. Both the fail operational as well as fail safe solutions can be implemented as per application need and available resources.

WADI Block Diagram Figure 4-3 WADI Block Diagram