Introduction

This example demonstrates the usage of the VTM to detect overtemperature events and signal the events through the ESM. The example shows how to configure the VTM for the various alerts and listen for VTM events using the 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 early warning, then return thresholds back to normal to simulate "cooling down".
UC-1	Configuration of VTM to trigger early warning, then alter the thresholds again to pass temperature critical threshold. Then, return thresholds back to normal to simulate "cooling down".

Supported Combinations

Parameter	Value
CPU + OS	mcu-r5fss0-0 nortos
Toolchain	ti-arm-clang
Board	am62px-sk
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

Sample Output

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

VTM Example Application
 
VTM_ESM_init: Init MAIN ESM complete
 
VTM_ESM_init complete
Starting Use Case 0
sensor id                       : 0
adc_code                        : 344
temp in milli degree celcius    : 52331
vtmTriggerTh: Setting lt_thr0_val temp to 48331 millidegrees Celsius, and adc_code_lt_thr0 = 326
vtmTriggerTh: Setting gt_thr1_val temp to 50331 millidegrees Celsius, and adc_code_gt_thr1 = 336
vtmTriggerTh: Setting gt_thr2_val temp to 57331 millidegrees Celsius, and adc_code_gt_thr2 = 366
Finished VTM threshold setting
case 0 success
 
 Use Case 0 completed: Input Event Trigger = Step completed successfully,
 
Starting Use Case 1
sensor id                       : 0
adc_code                        : 345
temp in milli degree celcius    : 52564
vtmTriggerTh: Setting lt_thr0_val temp to 48564 millidegrees Celsius, and adc_code_lt_thr0 = 328
vtmTriggerTh: Setting gt_thr1_val temp to 50564 millidegrees Celsius, and adc_code_gt_thr1 = 336
vtmTriggerTh: Setting gt_thr2_val temp to 57564 millidegrees Celsius, and adc_code_gt_thr2 = 366
Finished VTM threshold setting
 
 Use Case 1 completed: Input Event Trigger = Step completed successfully,
 
 
ESM Example Application summary
-------------------------------
Completed 2 Test Cases
Received 1 High Priority Interrupts
Received 5 Low Priority Interrupts
 
Test Case Event Log
------------------
 
Test Case 0: ESM Call back function called : grpChannel 0x4, index 0x9, intSrc 0x89
  ESM instance #2, ESM interrupt type = Low Priority ESM event
 
Test Case 0: ESM Call back function called : grpChannel 0x4, index 0x8, intSrc 0x88
  ESM instance #2, ESM interrupt type = Low Priority ESM event
 
Test Case 1: ESM Call back function called : grpChannel 0x4, index 0x9, intSrc 0x89
  ESM instance #2, ESM interrupt type = Low Priority ESM event
 
Test Case 1: ESM Call back function called : grpChannel 0x4, index 0xa, intSrc 0x8a
  ESM instance #2, ESM interrupt type = High Priority ESM event
 
Test Case 1: ESM Call back function called : grpChannel 0x4, index 0x9, intSrc 0x89
  ESM instance #2, ESM interrupt type = Low Priority ESM event
 
Test Case 1: ESM Call back function called : grpChannel 0x4, index 0x8, intSrc 0x88
  ESM instance #2, ESM interrupt type = Low Priority ESM event
 
 VTM Example Application: Complete
 All Use cases have passed.
 
[BLAZAR_Cortex_M4F_1]
 VTM Example Application
 
VTM_ESM_init: Init WKUP ESM complete
 
 VTM_ESM_init complete
Starting Use Case 0
sensor id                       : 0
adc_code                        : 317
temp in milli degree celcius    : 45956
vtmTriggerTh: Setting lt_thr0_val temp to 41956 millidegrees Celsius, and adc_code_lt_thr0 = 300
vtmTriggerTh: Setting gt_thr1_val temp to 43956 millidegrees Celsius, and adc_code_gt_thr1 = 308
vtmTriggerTh: Setting gt_thr2_val temp to 50956 millidegrees Celsius, and adc_code_gt_thr2 = 338
Finished VTM threshold setting
case 0 success
 
 Use Case 0 completed: Input Event Trigger = Step completed successfully,
 
Starting Use Case 1
sensor id                       : 0
adc_code                        : 317
temp in milli degree celcius    : 45956
vtmTriggerTh: Setting lt_thr0_val temp to 41956 millidegrees Celsius, and adc_code_lt_thr0 = 300
vtmTriggerTh: Setting gt_thr1_val temp to 43956 millidegrees Celsius, and adc_code_gt_thr1 = 308
vtmTriggerTh: Setting gt_thr2_val temp to 50956 millidegrees Celsius, and adc_code_gt_thr2 = 338
Finished VTM threshold setting
 
 Use Case 1 completed: Input Event Trigger = Step completed successfully,
 
 
ESM Example Application summary
-------------------------------
Completed 2 Test Cases
Received 1 High Priority Interrupts
Received 5 Low Priority Interrupts
 
Test Case Event Log
------------------
 
Test Case 0: ESM Call back function called : grpChannel 0x0, index 0x8, intSrc 0x8
  ESM instance #1, ESM interrupt type = Low Priority ESM event
 
Test Case 0: ESM Call back function called : grpChannel 0x0, index 0x9, intSrc 0x9
  ESM instance #1, ESM interrupt type = Low Priority ESM event
 
Test Case 1: ESM Call back function called : grpChannel 0x0, index 0x8, intSrc 0x8
  ESM instance #1, ESM interrupt type = Low Priority ESM event
 
Test Case 1: ESM Call back function called : grpChannel 0x0, index 0xa, intSrc 0xa
  ESM instance #1, ESM interrupt type = High Priority ESM event
 
Test Case 1: ESM Call back function called : grpChannel 0x0, index 0x8, intSrc 0x8
  ESM instance #1, ESM interrupt type = Low Priority ESM event
 
Test Case 1: ESM Call back function called : grpChannel 0x0, index 0x9, intSrc 0x9
  ESM instance #1, ESM interrupt type = Low Priority ESM event
 
 VTM Example Application: Complete
 All Use cases have passed.

Table of Contents

Introduction

Use Cases

Supported Combinations

Steps to Run the Example

See Also

Sample Output