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12 Simple Watchdog Timer
This module contains functional safety diagnostics APIs for WatchDog Timer Test.
12.1 Defines
12.1.1 WDT_SIMPLE_STORE_RSTFR_FLAG

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.
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

12.1.1 WDT_SIMPLE_STORE_RSTFR_FLAG

#define WDT_SIMPLE_STORE_RSTFR_FLAG 0b10010110u

This is a macro determining if the RSTFR register should be backed up. The flag value chosen is arbritrary, but simply using 0x1 would make it harder to verify that the variable storing the flag is not corrupted. It is backed up when test is run for the first time after a reset which is not caused by this test. This is done because the test itself will affect the contents of the RSTFR.