Reset Isolation - MCU Domain

Table of Contents

• Introduction
• Supported Combinations
• Steps
• Sample Output

Introduction

The example demonstrates the MCU reset isolation in the use case when the MCU domain is running a safety application.

The example can be run in OSPI boot mode. On running the application the MCU R5 and logs a heartbeat message to theMCU UART.

On pressing the SOC Warm reset button (SW6), the MCU R5 which is reset isolated will keep on running, and the Main domain will undergo a warm reset. On reset the SBL would not reload the MCU R5 core again.

Supported Combinations

Parameter	Value
CPU + OS	mcu-r5fss0-0 nortos
Toolchain	ti-arm-clang
Board	am62px-sk
Example folder	examples/drivers/safety/reset_isolation

Steps

• When using CCS projects to build, import the CCS project for the required combination and build it using the CCS project menu (see Using SDK with CCS Projects).
• When using makefiles to build, note the required combination and build using make command (see Using SDK with Makefiles)
• Launch a CCS debug session and run the executable, see CCS Launch, Load and Run

Sample Output

Shown below is a sample output when the application is run,

################################ MCU R5 Log #######################################
I am running (MCU) !!:- 0
I am running (MCU) !!:- 1
I am running (MCU) !!:- 2
I am running (MCU) !!:- 3
I am running (MCU) !!:- 4
I am running (MCU) !!:- 5
Resetting Main domain !!
I am running (MCU) !!:- 6
I am running (MCU) !!:- 7
I am running (MCU) !!:- 8
I am running (MCU) !!:- 9
All tests have passed!!