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3 PIC16 Diagnostic Test APIs
3.15 File List
Here is a list of all documented files with brief descriptions
3.15.19 diag_flash_crc16_direct.c File Reference
This file contains APIs to test FLASH using CRC16 CCITT Direct Computation algorithm.

Introduction
This document contains API documentation for the diagnostic tests included in the MPLAB® Code Configurator PIC16/18 ISO26262 Diagnostic Library.
1 Software Requirements: PIC16
2 Software Requirements: PIC18
3 PIC16 Diagnostic Test APIs
- 3.1 SW_CPU_REGISTER_RESET_STATE_CHECK_01
  This module contains functional safety diagnostics APIs for CPU Registers.
- 3.2 SW_CLOCK_PERIODIC_MONITOR_01
  Software Requirement ID: SW_CLOCK_PERIODIC_MONITOR_01 This module contains APIs to calculate and validate the frequency of the CPU clock using a reference Secondary Oscillator Crystal. It verifies the reliability of the system clock (i.e., the system clock should be neither too fast nor too slow)
- 3.3 SW_CLOCK_PERIODIC_MONITOR_02
  Software Requirement ID: SW_CLOCK_PERIODIC_MONITOR_02. This module contains APIs to calculate, store and validate the frequency of the CPU clock using a reference line frequency.
- 3.4 SW_CPU_REGISTER_TEST_01
  This module contains functional safety diagnostics APIs for CPU Registers.
- 3.5 SW_EEPROM_MEMORY_CHECKSUM_CRC_TEST_01 - CRC16
  This module contains APIs to calculate, store and validate 16-bit CCITT CRC for a given EEPROM region.
- 3.6 SW_EEPROM_MEMORY_CHECKSUM_CRC_TEST_01 - CRC32
  This module contains APIs to calculate, store and validate 32-bit CCITT CRC for a given EEPROM region.
- 3.7 SW_FLASH_MEMORY_CHECKSUM_CRC_TEST_01 - CRC16
  This module contains APIs to calculate, store and validate 16-bit CCITT CRC for a given FLASH region.
- 3.8 SW_FLASH_MEMORY_CHECKSUM_CRC_TEST_01 - CRC32
  This module contains APIs to calculate, store and validate 32-bit CCITT CRC for a given FLASH region.
- 3.9 SW_INTERRUPT_FREQUENCY_TEST_01
  This module contains functional safety diagnostics API for SW_INTERRUPT_FREQUENCY_TEST_01.
- 3.10 SW_SRAM_MARCH_TEST_01 - MarchB
  This module contains functional safety diagnostics API for SRAM March-B.
- 3.11 SW_SRAM_MARCH_TEST_01 - MarchC
  This module contains functional safety diagnostics APIs for SRAM March-C.
- 3.12 SW_SRAM_MARCH_TEST_01 - MarchC_Minus
  This module contains functional safety diagnostics APIs for SRAM March-C Minus.
- 3.13 SW_WATCHDOG_SIMPLE_TIMER_STARTUP_TEST_01
  This module contains functional safety diagnostics APIs for WatchDog Timer Test.
- 3.14 SW_WATCHDOG_WINDOWED_TIMER_STARTUP_TEST_01
  This module contains functional safety diagnostics APIs for WatchDog Timer Test.
- 3.15 File List
  Here is a list of all documented files with brief descriptions
  - 3.15.1 diag_clock_sosc_freq.c File Reference
    This file contains the APIs to perform the Clock Test using a secondary oscillator crystal as reference.
  - 3.15.2 diag_clock_sosc_freq.h File Reference
    This file contains all the variable defintions and the prototypes for the APIs used in performing the Clock Test using a secondary oscillator crystal as reference.
  - 3.15.3 diag_clockline_freq.c File Reference
    This file contains the APIs to perform the Clock Line frequency test.
  - 3.15.4 diag_clockline_freq.h File Reference
    This file contains all the variable defintions and the prototypes for the APIs used in performing the Clock Line frequency test.
  - 3.15.5 diag_config.h File Reference
  - 3.15.6 diag_cpu_registers.c File Reference
    This file contains APIs to test CPU Registers.
  - 3.15.7 diag_cpu_registers.h File Reference
    This file contains prototypes for APIs to test CPU Registers.
  - 3.15.8 diag_cpu_registers_reset_state_check.c File Reference
    This file contains API to diagnose CPU register reset state.
  - 3.15.9 diag_cpu_registers_reset_state_check.h File Reference
    This file contains prototypes for APIs to diagnose CPU register reset state.
  - 3.15.10 diag_crc16_lookup_table.h File Reference
    This file contains Look-up table for 16-bit CCITT CRC algorithm.
  - 3.15.11 diag_crc32_lookup_table.h File Reference
    This file contains Look-up table for 32-bit CRC algorithm.
  - 3.15.12 diag_eeprom_crc16.h File Reference
    This file contains prototypes for APIs to calculate, store and validate 16-bit CCITT CRC for a given EEPROM region.
  - 3.15.13 diag_eeprom_crc16_direct.c File Reference
    This file contains APIs to test EEPROM using CRC16 CCITT Direct Computation algorithm.
  - 3.15.14 diag_eeprom_crc16_lookup.c File Reference
    This file contains APIs to test EEPROM using CRC16 CCITT Look-up Table algorithm.
  - 3.15.15 diag_eeprom_crc32.h File Reference
    This file contains prototypes for APIs to calculate, store and validate 32-bit CRC for a given EEPROM region.
  - 3.15.16 diag_eeprom_crc32_direct.c File Reference
    This file contains APIs to test EEPROM using CRC32 Direct Computation algorithm.
  - 3.15.17 diag_eeprom_crc32_lookup.c File Reference
    This file contains APIs to test EEPROM using CRC32 Look-up Table algorithm.
  - 3.15.18 diag_flash_crc16.h File Reference
    This file contains prototypes for APIs to calculate, store and validate 16-bit CCITT CRC for a given FLASH region.
  - 3.15.19 diag_flash_crc16_direct.c File Reference
    This file contains APIs to test FLASH using CRC16 CCITT Direct Computation algorithm.
  - 3.15.20 diag_flash_crc16_lookup.c File Reference
    This file contains APIs to test FLASH using CRC16 CCITT Look-up Table algorithm.
  - 3.15.21 diag_flash_crc32.h File Reference
    This file contains prototypes for APIs to calculate, store and validate 32-bit CRC for a given FLASH region.
  - 3.15.22 diag_flash_crc32_direct.c File Reference
    This file contains APIs to test FLASH using CRC32 Direct Computation algorithm.
  - 3.15.23 diag_flash_crc32_lookup.c File Reference
    This file contains APIs to test FLASH using CRC32 Look-up Table algorithm.
  - 3.15.24 diag_intr_freq.c File Reference
    This file contains the API to perform Interrupt Frequency test.
  - 3.15.25 diag_intr_freq.h File Reference
    This file contains API prototypes for Interrupt frequency test.
  - 3.15.26 diag_memory_types.h File Reference
    This file contains common type definitions for EEPROM and FLASH module.
  - 3.15.27 diag_sram_march_types.h File Reference
    This file contains common type definitions for SRAM diagnostics module.
  - 3.15.28 diag_sram_marchb.c File Reference
    This file contains the API to test SRAM using March B algorithm.
  - 3.15.29 diag_sram_marchb.h File Reference
    This file contains API prototypes for SRAM March-B test.
  - 3.15.30 diag_sram_marchc.c File Reference
    This file contains APIs to test SRAM using March C algorithm.
  - 3.15.31 diag_sram_marchc.h File Reference
    This file contains API prototypes for SRAM March-C test.
  - 3.15.32 diag_sram_marchc_minus.c File Reference
    This file contains APIs to test SRAM using March C- algorithm.
  - 3.15.33 diag_sram_marchc_minus.h File Reference
    This file contains API prototypes for SRAM March-C Minus test.
  - 3.15.34 diag_wdt_simple_timer.c File Reference
    This file contains APIs to test WDT in Simple-Timer Mode using Indirect Time-Slot Monitoring method.
  - 3.15.35 diag_wdt_simple_timer.h File Reference
    This file contains API prototypes for Indirect Time-Slot Monitoring based WDT Test (Simple-Timer Mode)
  - 3.15.36 diag_wdt_windowed_timer.c File Reference
    This file contains APIs to test WDT in Windowed-Timer Mode using Indirect Time-Slot Monitoring method.
  - 3.15.37 diag_wdt_windowed_timer.h File Reference
    This file contains API prototypes for Indirect Time-Slot Monitoring based WDT Test (Windowed-Timer Mode)
- 3.16 Class List
  Here is a list of all documented files with brief descriptions
4 PIC18 Diagnostic Test APIs

3.15.19 diag_flash_crc16_direct.c File Reference

This file contains APIs to test FLASH using CRC16 CCITT Direct Computation algorithm.

Includes

diag_flash_crc16.h
../../../diag_common/config/diag_config.h
string.h
xc.h

Functions

Table 3-39. diag_crc_status_tDIAG_FLASH_CalculateCRC16 (uint16_t startAddress, uint16_t length, uint16_t *crcSeed)

Parameters


[in] startAddress	uint16_t - starting address of FLASH memory region to be considered for CRC
[in] length	uint16_t - number of bytes from startAddress to be considered for CRC
[in, out] crcSeed	uint16_t * - pointer to initial and final CRC

Returns


diag_crc_status_t	CRC_OK, CRC_ERROR, CRC_INVALID_ADDRESS, CRC_INVALID_LENGTH

Table 3-40. diag_crc_status_tDIAG_FLASH_CalculateStoreCRC16 (uint16_t startAddress, uint16_t length, uint16_t storeAddress)

Parameters


[in] startAddress	uint16_t - starting address of FLASH memory region to be considered for CRC
[in] length	uint16_t - number of bytes from startAddress to be considered for CRC
[in] storeAddress	uint16_t - the FLASH address where calculated CRC will be stored

Returns


diag_crc_status_t	CRC_OK, CRC_ERROR, CRC_INVALID_ADDRESS, CRC_INVALID_LENGTH

Table 3-41. diag_crc_status_tDIAG_FLASH_ValidateCRC16 (uint16_t startAddress, uint16_t length, uint16_t refAddress)

Parameters


[in] startAddress	uint16_t - starting address of FLASH memory region to be considered for CRC
[in] length	uint16_t - number of bytes from startAddress to be considered for CRC
[in] refAddress	uint16_t - the FLASH address where reference CRC is available

Returns


diag_crc_status_t	CRC_OK, CRC_ERROR, CRC_INVALID_ADDRESS, CRC_INVALID_LENGTH