Sys driver implementation. More...

#include "general.h"
#include "sys.h"
#include "algorithm.h"
#include "bal.h"
#include "bms.h"
#include "can.h"
#include "contactor.h"
#include "diag.h"
#include "fram.h"
#include "fstd_types.h"
#include "imd.h"
#include "interlock.h"
#include "meas.h"
#include "os.h"
#include "sbc.h"
#include "sof_trapezoid.h"
#include "state_estimation.h"
#include <stdint.h>

Include dependency graph for sys.c:

Go to the source code of this file.

Macros
#define	SYS_SAVELASTSTATES(x)

#define	SYS_BIST_GENERAL_MAGIC_NUMBER (42u)

Enumerations
enum	SYS_CHECK_MULTIPLE_CALLS_e { SYS_MULTIPLE_CALLS_NO , SYS_MULTIPLE_CALLS_YES }

Functions
static SYS_CHECK_MULTIPLE_CALLS_e	SYS_CheckMultipleCalls (SYS_STATE_s *pSystemState)
	check for multiple calls of state machine trigger function More...

static void	SYS_SetState (SYS_STATE_s *pSystemState, SYS_FSM_STATES_e nextState, SYS_FSM_SUBSTATES_e nextSubstate, uint16_t idleTime)
	Sets the next state, the next substate and the timer value of the state variable. More...

static void	SYS_SetSubstate (SYS_STATE_s *pSystemState, SYS_FSM_SUBSTATES_e nextSubstate, uint16_t idleTime)
	Sets the next substate and the timer value of the state variable. More...

static STD_RETURN_TYPE_e	SYS_RunStateMachine (SYS_STATE_s *pSystemState)
	Defines the state transitions. More...

static SYS_RETURN_TYPE_e	SYS_CheckStateRequest (SYS_STATE_REQUEST_e stateRequest)
	checks the state requests that are made. More...

static SYS_STATE_REQUEST_e	SYS_TransferStateRequest (void)
	transfers the current state request to the state machine. More...

SYS_RETURN_TYPE_e	SYS_SetStateRequest (SYS_STATE_REQUEST_e stateRequest)
	sets the current state request of the state variable sys_state. More...

void	SYS_GeneralMacroBist (void)

STD_RETURN_TYPE_e	SYS_Trigger (SYS_STATE_s *pSystemState)
	tick function, call this to advance the state machine More...

Variables
SYS_STATE_s	sys_state

Detailed Description

Sys driver implementation.

Copyright: © 2010 - 2023, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. All rights reserved.

SPDX-License-Identifier: BSD-3-Clause

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Author: foxBMS Team

Date: 2020-02-24 (date of creation)

Updated: 2023-02-23 (date of last update)

Version: v1.5.1

Prefix: SYS

Definition in file sys.c.

Macro Definition Documentation

◆ SYS_BIST_GENERAL_MAGIC_NUMBER

#define SYS_BIST_GENERAL_MAGIC_NUMBER (42u)

Magic number that is searched by the SYS_GeneralMacroBist().

Definition at line 85 of file sys.c.

◆ SYS_SAVELASTSTATES

#define SYS_SAVELASTSTATES ( x )

Value:

(x)->lastState = (x)->state; \

(x)->lastSubstate = (x)->substate

Saves the last state and the last substate

Definition at line 80 of file sys.c.

Enumeration Type Documentation

◆ SYS_CHECK_MULTIPLE_CALLS_e

enum SYS_CHECK_MULTIPLE_CALLS_e

Symbolic names to check for multiple calls of SYS_Trigger()

Enumerator
SYS_MULTIPLE_CALLS_NO	no multiple calls, OK
SYS_MULTIPLE_CALLS_YES	multiple calls, not OK

Definition at line 92 of file sys.c.

Function Documentation

◆ SYS_CheckMultipleCalls()

static SYS_CHECK_MULTIPLE_CALLS_e SYS_CheckMultipleCalls ( SYS_STATE_s * pSystemState )

static

check for multiple calls of state machine trigger function

The trigger function is not reentrant, which means it cannot be called multiple times. This functions increments the triggerEntry counter once and must be called each time the trigger function is called. If triggerEntry is greater than one, there were multiple calls. For this function to work, triggerEntry must be decremented each time the trigger function is called, even if no processing do because the timer is non-zero.

Parameters

pSystemState state of the fake state machine

Returns: SYS_MULTIPLE_CALLS_YES if there were multiple calls, SYS_MULTIPLE_CALLS_NO otherwise

Definition at line 165 of file sys.c.

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◆ SYS_CheckStateRequest()

static SYS_RETURN_TYPE_e SYS_CheckStateRequest ( SYS_STATE_REQUEST_e stateRequest )

static

checks the state requests that are made.

This function checks the validity of the state requests. The results of the checked is returned immediately.

Parameters

stateRequest state request to be checked

Returns: result of the state request that was made, taken from SYS_RETURN_TYPE_e

Definition at line 638 of file sys.c.

◆ SYS_GeneralMacroBist()

void SYS_GeneralMacroBist ( void )

built-in self-test for the macros in general.h

Definition at line 663 of file sys.c.

◆ SYS_RunStateMachine()

static STD_RETURN_TYPE_e SYS_RunStateMachine ( SYS_STATE_s * pSystemState )

static

Defines the state transitions.

This function contains the implementation of the state machine, i.e., the sequence of states and substates. It is called by the trigger function every time the state machine timer has a non-zero value.

Parameters

pSystemState state of the example state machine

Returns: TODO

Definition at line 200 of file sys.c.

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◆ SYS_SetState()

static void SYS_SetState	(	SYS_STATE_s *	pSystemState,
		SYS_FSM_STATES_e	nextState,
		SYS_FSM_SUBSTATES_e	nextSubstate,
		uint16_t	idleTime
	)

static

Sets the next state, the next substate and the timer value of the state variable.

Parameters

pSystemState	state of the example state machine
nextState	state to be transferred into
nextSubstate	substate to be transferred into
idleTime	wait time for the state machine

Definition at line 181 of file sys.c.

◆ SYS_SetStateRequest()

SYS_RETURN_TYPE_e SYS_SetStateRequest ( SYS_STATE_REQUEST_e stateRequest )

sets the current state request of the state variable sys_state.

This function is used to make a state request to the state machine, e.g., start voltage measurement, read result of voltage measurement, re-initialization. It calls SYS_CheckStateRequest() to check if the request is valid. The state request is rejected if is not valid. The result of the check is returned immediately, so that the requester can act in case it made a non-valid state request.

Parameters

stateRequest state requested to set

Returns: If the request was successfully set, it returns the SYS_OK, else the current state of requests (type SYS_STATE_REQUEST_e)

Definition at line 614 of file sys.c.

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◆ SYS_SetSubstate()

static void SYS_SetSubstate	(	SYS_STATE_s *	pSystemState,
		SYS_FSM_SUBSTATES_e	nextSubstate,
		uint16_t	idleTime
	)

static

Sets the next substate and the timer value of the state variable.

Parameters

pSystemState	state of the example state machine
nextSubstate	substate to be transferred into
idleTime	wait time for the state machine

Definition at line 195 of file sys.c.

◆ SYS_TransferStateRequest()

static SYS_STATE_REQUEST_e SYS_TransferStateRequest ( void )

static

transfers the current state request to the state machine.

This function takes the current state request from sys_state and transfers it to the state machine. It resets the value from sys_state to SYS_STATE_NO_REQUEST

Returns: retVal current state request, taken from SYS_STATE_REQUEST_e

Definition at line 603 of file sys.c.

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◆ SYS_Trigger()

STD_RETURN_TYPE_e SYS_Trigger ( SYS_STATE_s * pSystemState )

tick function, call this to advance the state machine

This function contains the sequence of events in the SYS state machine. It must be called time-triggered, every 10ms.

Definition at line 671 of file sys.c.

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Variable Documentation

◆ sys_state

SYS_STATE_s sys_state

Initial value:

= {
    .timer                  = 0,
    .triggerEntry           = 0,
    .stateRequest           = SYS_STATE_NO_REQUEST,
    .state                  = SYS_STATEMACH_UNINITIALIZED,
    .substate               = SYS_ENTRY,
    .lastState              = SYS_STATEMACH_UNINITIALIZED,
    .lastSubstate           = SYS_ENTRY,
    .illegalRequestsCounter = 0,
    .initializationTimeout  = 0,
}

contains the state of the contactor state machine

Definition at line 98 of file sys.c.

Macros

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ SYS_BIST_GENERAL_MAGIC_NUMBER

◆ SYS_SAVELASTSTATES

Enumeration Type Documentation

◆ SYS_CHECK_MULTIPLE_CALLS_e

Function Documentation

◆ SYS_CheckMultipleCalls()

◆ SYS_CheckStateRequest()

◆ SYS_GeneralMacroBist()

◆ SYS_RunStateMachine()

◆ SYS_SetState()

◆ SYS_SetStateRequest()

◆ SYS_SetSubstate()

◆ SYS_TransferStateRequest()

◆ SYS_Trigger()

Variable Documentation

◆ sys_state