Pre-startup

Contains API prototype for Pre-startup Task Manager. More...

Files
file	task_manager_pre_startup.c
	Implements API for Pre-startup Task Manager.
file	task_manager_pre_startup.h
	Contains API prototype for Pre-startup Task Manager.

Functions
void	TM_PreStartup (void)
	Manages safety system Pre-startup Tasks.

Detailed Description

Contains API prototype for Pre-startup Task Manager.

The Pre-startup Task Manager is responsible for executing the pre-startup sequence by calling Tasks that should run immediately after a system reset and perform several device resets for system diagnostics until the sequence is completed.

Copyright

© 2026 Microchip Technology Inc. and its subsidiaries.

Subject to your compliance with these terms, you may use Microchip software and any derivatives exclusively with Microchip products. It is your responsibility to comply with third party license terms applicable to your use of third party software (including open source software) that may accompany Microchip software.

THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.

IN NO EVENT WILL MICROCHIP BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY, THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.

UML Class Diagrams

UML Sequence Diagrams

Function Documentation

TM_PreStartup()

void TM_PreStartup

(

void

)

Manages safety system Pre-startup Tasks.

This function executes the safety system pre-startup sequence intended to run before entering the main function. The sequence calls Tasks that ensure that the system is in the Safe State immediately after a system reset, detects and reports the system reset reason and runs error injection diagnostics that causes device resets multiple times, repeating the first steps until the sequence is complete.

Warning

This function will reset the device as part of normal execution.

Warning

The Tasks called in this function have side effects documented in

T_EnsureSafeState, T_DetermineResetReason and T_RunResetDiagnosticFsm.

Warning

Intended to be called inside the .init3 memory section (see restrictions in init3).

Here is the call graph for this function: