SDL MCU VTM

Table of Contents

• Introduction
  • Use Cases
• Supported Combinations
• Steps to Run the Example
• See Also
• Sample Output

Introduction

This example demonstrates the usage of the VTM to detect overtemperature events and signal the events through the interrupt/ESM. The example shows how to configure the VTM for the various alerts and listen for VTM events using the interrupts/ESM. It also shows forcing an error in order to demonstrate application notification of overtemperature events.

The example demonstrates:

• Configuring the VTM thresholds
• Early alert event detection
• Critial threshold event detection
• Follow-up event notification when temperature has dropped to a safe level

Use Cases

Use Case	Description
UC-0	Configuration of VTM threshold to trigger Low and High Threshold Hot alert warning.
UC-1	Configuration of VTM threshold to trigger Hot alert warning, then return thresholds back to normal to simulate "cooling down".
UC-2	Configuration of VTM threshold to trigger ESM interrupt.

Supported Combinations

Parameter	Value
CPU + OS	r5fss0-0 nortos
	r5fss1-0 nortos
Toolchain	ti-arm-clang
Board	am263px-cc
Example folder	examples/sdl/vtm/

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

See Also

VTM

Sample Output

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

[Cortex_R5_0]
 VTM Example Application
 
 
 UC1 :
 Device Temperature: 70000mc
 Configured hot alert Temperature: 58000mc
 Hot Alert Temperature breached and received Interrupt : 133
 
 Device Temperature: 70000mc
 Configured cold alert Temperature: 72000mc
 Cold Alert Temperature breached and received Interrupt
 Temperature is below Configured Low Temperature and received Interrupt : 133
 
 UC2 :
 Device Temperature: 70000mc
 Configured Low threshold Temperature: 66000mc
 Low Threshold Temperature breached and received Interrupt: 134
 
 Device Temperature: 70000mc
 Configured hot threshold Temperature: 66000mc
 Exceeded Configured Temperature and received Interrupt : 133
 
 UC3 :
ESM_Test_init: Init MSS ESM complete
 
ESM Call back function called : instType 0x2, intType 0x1, grpChannel 0x1, index 0xc, intSrc 0x2c
 
 Device Temperature: 70000mc
 Configured Low threshold Temperature: 74000mc
 Configured hot threshold Temperature: 66000mc
 ESM Interrupt Received
 All tests Passed