SDAA352 May   2026 TDA4VM

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2System Architecture
    1. 2.1 Core Configuration
    2. 2.2 Power Domain Architecture
    3. 2.3 IPC Framework Overview
  6. 3Heartbeat Monitoring Design
    1. 3.1 Ping-Pong Protocol
    2. 3.2 Dual-Task Architecture
    3. 3.3 Crash Detection Logic
  7. 4 Recovery Mechanism
    1. 4.1 Power State Transitions
  8. 5 Implementation Details
    1. 5.1 Configuration Parameters
    2. 5.2 Parameter Tuning Guidance:
    3. 5.3 Linux-Side rpmsg_char Implementation
  9. 6 Test Results and Performance
    1. 6.1 Timing Profile
    2. 6.2 Recovery Verification
  10. 7Summary
  11. 8References

5.3 Linux-Side rpmsg_char Implementation

The heartbeat monitoring system requires a Linux user-space application to handle communication with the MCU1_0 monitor. The implementation uses the TI rpmsg_char library and framework to bridge user-space applications with the kernel RPMsg subsystem.

The ti-rpmsg-char library provides a user-space API for RPMsg communication on Linux. This consists of:

- Core Library: libti_rpmsg_char.so.0.6.10 - Handles endpoint management and kernel interface

- Simple Application: rpmsg_char_simple - Used it for heartbeat communication to the linux core