MPU Firewall Service DEMO

Table of Contents

• Introduction
• Supported Combinations
• Steps to Run the Example
  • Sample Output

Introduction

This example demonstrates the use of HSM Firewall services.

2 services are available.

1. Set Firewall Service is used to set firewall configuration.
2. Set Firewall Interrupt service is responsible for the 4 operations mentioned below:
   • 2.1. Interrupt enable for protection and address violation
   • 2.2. Clearing Interrupt enable.
   • 2.3. Clearing Interrupt status.
   • 2.4. Clearing the current fault so that another can be captured.

Supported Combinations

Parameter	Value
CPU + OS	r5fss0_0 nortos
	r5fss0_1 nortos
Toolchain	ti-arm-clang
Boards	am263x-cc
Example folder	/examples/hsm_client/mpu_firewall_services_demo/

Steps to Run the Example

• 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

On successful boot, following message will be seen on terminal. Please note that the R5F application has not been side-loaded yet.

 [HSM_CLIENT] New Client Registered with Client Id = 0
 Starting QSPI Bootloader ...
[BOOTLOADER_PROFILE] Boot Media       : NOR SPI FLASH
[BOOTLOADER_PROFILE] Boot Media Clock : 80.000 MHz
[BOOTLOADER_PROFILE] Boot Image Size  : 28 KB
[BOOTLOADER_PROFILE] Cores present    :
r5f0-1
r5f0-0
[BOOTLOADER PROFILE] System_init                      :        286us
[BOOTLOADER PROFILE] Drivers_open                     :         75us
[BOOTLOADER PROFILE] LoadHsmRtFw                      :      14503us
[BOOTLOADER PROFILE] Board_driversOpen                :       2975us
[BOOTLOADER PROFILE] CPU load                         :       2292us
[BOOTLOADER_PROFILE] SBL Total Time Taken             :      20134us
 
Image loading done, switching to application ...
 
 [HSM_CLIENT] New Client Registered with Client Id = 2
 
 Enabling the interrupt for both address violation and protection violation for MPU_R5SS0_CORE1_AHB
Firewall request #1 status = 11111111 11111111
 
 Permissions for peripheral region(0x5230 0000 - 0x5230 03FF) are revoked for R5FSS0_1
 
 [HSM_CLIENT] New Client Registered with Client Id = 2
 
 Interrupt registeration successful, notifying remote core to read CSL_UART0_U_BASE register
Success