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13 Windowed Watchdog Timer
This module contains functional safety diagnostics APIs for WatchDog Timer Test.
13.3 Functions
13.3.4 DIAG_WDT_WindowedTimer
This API checks the WDT reset in window mode either the timer being cleared too early or too late. This test should not be called from main. The test will be executed before main is entered as long as diag_wdt_windowed_timer.h/.c is included in the compilation.

Introduction
This document contains API documentation for the diagnostic tests included MPLAB® Code Configurator AVR® IEC60730 Class B Diagnostic Library.
1 Software Requirements
2 Clock Frequency Test
This module contains functional safety diagnostics APIs for Clock Frequency test.
3 CPU Program Counter
This module contains functional safety diagnostics APIs for CPU Program counter test.
4 CPU Registers
This module contains functional safety diagnostics APIs for CPU Registers.
5 EEPROM - 16-bit CRC
This module contains APIs to calculate, store and validate 16-bit CCITT CRC for a given EEPROM region.
6 EEPROM - 32-bit CRC
This module contains APIs to calculate, store and validate 32-bit CCITT CRC for a given EEPROM region.
7 FLASH - 16-bit CRC
This module contains APIs to calculate, store and validate 16-bit CCITT CRC for a given FLASH region.
8 FLASH - 32-bit CRC
This module contains APIs to calculate, store and validate 32-bit CCITT CRC for a given FLASH region.
9 Interrupt Frequency Test
This module contains functional safety diagnostics API for Interrupt Frequency Test.
10 SRAM - Checkerboard Algorithm
This module contains functional safety diagnostics APIs for SRAM Checkerboard Test.
11 SRAM - March C-Minus Algorithm
This module contains functional safety diagnostics APIs for SRAM March-C Minus.
12 Simple Watchdog Timer
This module contains functional safety diagnostics APIs for WatchDog Timer Test.
13 Windowed Watchdog Timer
This module contains functional safety diagnostics APIs for WatchDog Timer Test.
- 13.1 Defines
- 13.2 Enums
- 13.3 Functions
  - 13.3.1 configure_TCA_for_time_taking
    This is API to Set period so that TCA overflows approximately every 1ms.
  - 13.3.2 restart_TCA
    This is an API to reset TCA to zero and start counting from zero.
  - 13.3.3 tear_down
    This is an API to restore the timer registers to their default values.
  - 13.3.4 DIAG_WDT_WindowedTimer
    This API checks the WDT reset in window mode either the timer being cleared too early or too late. This test should not be called from main. The test will be executed before main is entered as long as diag_wdt_windowed_timer.h/.c is included in the compilation.
  - 13.3.5 DIAG_WDT_WindowedTimer_GetStatus
    This API returns the status of windowed timer WDT diagnosis.
14 File List
Here is a list of all documented files with brief descriptions
15 Class List
Here is a list of all documented files with brief descriptions

13.3.4 DIAG_WDT_WindowedTimer

This API checks the WDT reset in window mode either the timer being cleared too early or too late. This test should not be called from main. The test will be executed before main is entered as long as diag_wdt_windowed_timer.h/.c is included in the compilation.

This diagnostics tests that window mode works by attempting to reset the WDT counter in the closed part of the WDT counter window. The correct response of the device should be to reset the device. The next step will test that WDT will issue a system reset in window mode if no WDR instruction is executed. If the device and WDT was reset correctly in each step of the test, then the diag_wdt_window_teststate is set to DIAG_WDT_WINDOW_FSM_OK and diag_windowed_wdt_status_t Enum is set to DIAG_WDT_WINDOW_PASS, otherwise the diag_wdt_window_teststate is set to DIAG_WDT_WINDOW_FSM_FAULT and diag_windowed_wdt_status_t Enum is set to DIAG_WDT_WINDOW_FAIL thereby indicating fault.

Error reporting:

DIAG_WDT_WindowedTimer_GetStatus should be called from main to know the status of Windowed Timer WDT diagnosis

void DIAG_WDT_WindowedTimer(
    void
)

Returns


void	See DIAG_WDT_WindowedTimer_GetStatus