AUTOSAR Classic Microcontroller Abstraction (MCAL)

Die Microcontroller Abstraction Layer (MCAL) enthält hardware-spezifische Treiber für interne Mikrocontroller-Peripherie (ADC-Wandler, PWM-Generatoren, Hardware-Watchdog) und entkoppelt obere BSW-Schichten von der Silizium-Plattform.

Topic map

Detail view

Select an entry in the outline.

No element data available for this release

Adc

Adc_DeInit function

Returns all ADC HW Units to a state comparable to their power on reset state.

void Adc_DeInit (void);

Adc_DisableGroupNotification function

Disables the notification mechanism for the requested ADC Channel group.

void Adc_DisableGroupNotification (Adc_GroupType Group);

Adc_DisableHardwareTrigger function

Disables the hardware trigger for the requested ADC Channel group.

void Adc_DisableHardwareTrigger (Adc_GroupType Group);

Adc_EnableGroupNotification function

Enables the notification mechanism for the requested ADC Channel group.

void Adc_EnableGroupNotification (Adc_GroupType Group);

Adc_EnableHardwareTrigger function

Enables the hardware trigger for the requested ADC Channel group.

void Adc_EnableHardwareTrigger (Adc_GroupType Group);

Adc_GetCurrentPowerState function

Service Adc_GetCurrentPowerState.

Std_ReturnType Adc_GetCurrentPowerState (Adc_PowerStateType* CurrentPowerState, Adc_PowerStateRequestResultType* Result);

Adc_GetGroupStatus function

Returns the conversion status of the requested ADC Channel group.

Adc_StatusType Adc_GetGroupStatus (Adc_GroupType Group);

Adc_GetStreamLastPointer function

Returns the number of valid samples per channel, stored in the result buffer. Reads a pointer, pointing to a position in the group result buffer. With the pointer position, the results of all group channels of the last completed conversion round can be acc essed. With the pointer and the return value, all valid group conversion results can be accessed (the user has to take the layout of the result buffer into account).

Adc_StreamNumSampleType Adc_GetStreamLastPointer (Adc_GroupType Group, Adc_ValueGroupType* * PtrToSamplePtr);

Adc_GetTargetPowerState function

Service Adc_GetTargetPowerState.

Std_ReturnType Adc_GetTargetPowerState (Adc_PowerStateType* TargetPowerState, Adc_PowerStateRequestResultType* Result);

Adc_GetVersionInfo function

Returns the version information of this module.

void Adc_GetVersionInfo (Std_VersionInfoType* versioninfo);

Adc_Init function

Initializes the ADC hardware units and driver.

void Adc_Init (const Adc_ConfigType* ConfigPtr);

Adc_Main_PowerTransitionManager function

This API is cyclically called and supervises the power state transitions, checking for the readiness of the module and issuing the callbacks Io Hw Ab_ Adc_ Notify Ready For Power State (see Adc Power State Ready Cb k Ref configuration parameter).

void Adc_Main_PowerTransitionManager (void);

Adc_PreparePowerState function

This API starts the needed process to allow the ADC HW module to enter the AUTOSAR CP R20 - of Document ID : AUTOSAR_SWS_ADCDriver requested power state.

Std_ReturnType Adc_PreparePowerState (Adc_PowerStateType PowerState, Adc_PowerStateRequestResultType* Result);

Adc_ReadGroup function

Reads the group conversion result of the last completed conversion round of the requested group and stores the channe l values starting at the Data Buffer Ptr address. The group channel values are stored in ascending channel number order ( in contrast to the storage layout of the result buffer if streaming access is configured).

Std_ReturnType Adc_ReadGroup (Adc_GroupType Group, Adc_ValueGroupType* DataBufferPtr);

Adc_SetPowerState function

This API configures the Adc module so that it enters the already prepared power state, chosen between a predefined set of configured ones.

Std_ReturnType Adc_SetPowerState (Adc_PowerStateRequestResultType* Result);

Adc_SetupResultBuffer function

Initializes ADC driver with the group specific result buffer start address where the conversion results will be stored. The applicatio n has to ensure that the application buffer, where Data Buffer Ptr points to, can hold all the conversion results of the specified group. The initialization with Adc_ Setup Result Buffer is required after reset, before a group conversion can be started.

Std_ReturnType Adc_SetupResultBuffer (Adc_GroupType Group, Adc_ValueGroupType* DataBufferPtr);

Adc_StartGroupConversion function

Starts the conversion of all channels of the requested ADC Channel group.

void Adc_StartGroupConversion (Adc_GroupType Group);

Adc_StopGroupConversion function

Stops the conversion of the requested ADC Channel group.

void Adc_StopGroupConversion (Adc_GroupType Group);

IoHwAb_Adc_NotifyReadyForPowerState function

The API shall be invoked by the ADC Driver when the requested power state preparation for mode <#Mode> is completed.

void IoHwAb_Adc_NotifyReadyForPowerState<#Mode> (void);

Adc_Channel type

In case of active limit checking: defines which conversion values are taken into account related to the boardes defineed with Adc Channel Low Limit and Adc Channel High Limit.

Adc_ChannelType type

Numeric ID of an ADC channel.

Adc_ConfigType type

Data structure containing the set of configuration parameters required for initializing the ADC Driver and ADC HW Unit(s).

Adc_ConversionTimeType type

Type of conversion time, i.e. the time during which the sampled analogue value is converted into digital representation. (This is not an API type).

Adc_GroupAccessModeType type

Type for configuring the access mode to group conversion results.

Adc_GroupConvModeType type

Type for configuring the conversion mode of an ADC Channel group. AUTOSAR CP R20 - of Document ID : AUTOSAR_SWS_ADCDriver

Adc_GroupDefType type

Type for assignment of channels to a channel group (this is not an API type).

Adc_GroupPriorityType type

Priority level of the channel. Lowest priority is 0.

Adc_GroupReplacementType type

Replacement mechanism, which is used on ADC group level, if a group conversion is interrupted by a group which has a higher priority.

Adc_GroupType type

Numeric ID of an ADC channel group.

Adc_HwTriggerSignalType type

Type for configuring on which edge of the hardware trigger signal the driver should react, i.e. start the conversion (only if supported by the ADC hardware).

Adc_HwTriggerTimerType type

Type for the reload value of the ADC module embedded timer (only if supported by the ADC hardware).

Adc_PowerStateRequestResultType type

Type Adc_PowerStateRequestResultType.

Adc_PowerStateType type

Power state currently active or set as target power state.

Adc_PrescaleType type

Type of clock prescaler factor. (This is not an API type).

Adc_PriorityImplementationType type

Type for configuring the prioritization mechanism.

Adc_ResolutionType type

Type of channel resolution in number of bits. (This is not an API type).

Adc_ResultAlignmentType type

Type for alignment of ADC raw results in ADC result buffer (left/ right alignment).

Adc_SamplingTimeType type

Type of sampling time, i.e. the time during which the value is sampled, (in clock - cycles). (This is not an API type).

Adc_StatusType type

Current status of the conversion of the requested ADC Channel group.

Adc_StreamBufferModeType type

Type for configuring the streaming access mode buffer type.

Adc_StreamNumSampleType type

Type for configuring the number of group conversions in streaming access mode (in single access mode, parameter is 1). Available Adc.h AUTOSAR CP R20 - of Document ID : AUTOSAR_SWS_ADCDriver via

Adc_TriggerSourceType type

Type for configuring the trigger source for an ADC Channel group.

Adc_ValueGroupType type

Type for reading the converted values of a channel group (raw, without further scaling, alignment according precompile switch ADC_ RESULT_ ALIGNMENT).

CorTst

CorTst_Abort function

Service to change from CORTST_ INIT to CORTST_ ABORT state

void CorTst_Abort(void);

CorTst_DeInit function

Service to change from CORTST_ ABORT or CORTST_ INIT to CORTST_ UNINIT state

void CorTst_DeInit(void);

CorTst_GetCurrentStatus function

Service for Core Test to get indicator of the last executed Core Test result

void CorTst_GetCurrentStatus(CorTst_ErrOkType* ErrOk);

CorTst_GetVersionInfo function

Service returns the version information of this module.

void CorTst_GetVersionInfo(Std_VersionInfoType* versioninfo);

CorTst_Init function

Service for initialization and change of state of the Core Test

void CorTst_Init(const CorTst_ConfigType* ConfigPtr);

CorTst_MainFunction function

Cyclically called by scheduler to perform processing of Core Test.

void CorTst_MainFunction(void);

CorTst_Start function

Service for executing foreground Core Test.

Std_ReturnType CorTst_Start(CorTst_TestIdFgndType TestId);

CorTst_TestCompletedNotification function

The function Cor Tst_ Test Completed Notification shall be called every time when a complete test cycle has been executed.

void CorTst_TestCompletedNotification(CorTst_ErrOkType ResultOfLastCorTstRun);

Tst_CsumSignatureBgndTypeCorTst_GetSignature function

Service to get signature of the last executed Core Test in background mode.

CorTst_CsumSignatureBgndType CorTst_GetSignature(void);

Tst_CsumSignatureTypeCorTst_GetFgndSignature function

Service to get signature of the last executed Core Test in foreground mode.

CorTst_CsumSignatureType CorTst_GetFgndSignature(void);

Tst_StateTypeCorTst_GetState function

Service for Core Test to immediately return status on currently executed Core Test.

CorTst_StateType CorTst_GetState(void);

CorTst_ConfigType type

Configuration data structure of the Cor Tst module.

CorTst_CsumSignatureBgndType type

Type for test signature in background mode

CorTst_CsumSignatureType type

This is the type of the Core Test return value if a checksum/ signature is returned from API to the caller of the API.

CorTst_ErrOkType type

This is the type of the Core Test test retu rn if a status is retuned from API to the caller of the API.

CorTst_ResultType type

This is the type of the Core Test test return if a status is retuned from API to the caller of the API.

CorTst_StateType type

This is a status value returned by the API Cor Tst_ Get State().

CorTst_TestIdFgndType type

This is the type of the parameter (Id) used for a specific foreground test configuration to run. (The Id shall be used in the call to the API Cor Tst_ Start(Cor Tst_ Test Id Fgnd Type Test Id)).

Dio

Dio_FlipChannel function

Service to flip (change from 1 to 0 or from 0 to 1) the level of a channel and return the level of the channel after flip.

Dio_LevelType Dio_FlipChannel(Dio_ChannelType ChannelId);

Dio_GetVersionInfo function

Service to get the version information of this module.

void Dio_GetVersionInfo(Std_VersionInfoType* VersionInfo);

Dio_MaskedWritePort function

Service to set the value of a given port with required mask.

void Dio_MaskedWritePort(Dio_PortType PortId, Dio_PortLevelType Level, Dio_PortLevelType Mask);

Dio_ReadChannel function

Returns the value of the specified DIO channel.

Dio_LevelType Dio_ReadChannel(Dio_ChannelType ChannelId);

Dio_WriteChannel function

Service to set a level of a channel.

void Dio_WriteChannel(Dio_ChannelType ChannelId, Dio_LevelType Level);

Dio_WriteChannelGroup function

Service to set a subset of the adjoining bits of a port to a specified level.

void Dio_WriteChannelGroup(const Dio_ChannelGroupType* ChannelGroupIdPtr, Dio_PortLevelType Level);

Dio_WritePort function

Service to set a value of the port.

void Dio_WritePort(Dio_PortType PortId, Dio_PortLevelType Level);

LevelTypeDio_ReadChannelGroup function

This Service reads a subset of the adjoining bits of a port.

Dio_PortLevelType Dio_ReadChannelGroup(const Dio_ChannelGroupType* ChannelGroupIdPtr);

LevelTypeDio_ReadPort function

Returns the level of all channels of that port.

Dio_PortLevelType Dio_ReadPort(Dio_PortType PortId);

Dio_ChannelGroupType type

Type for the definition of a channel group, which consists of several adjoining channels within a port.

Dio_ChannelType type

Numeric ID of a DIO channel.

Dio_LevelType type

These are the possible levels a DIO channel can have (input or output)

Dio_PortLevelType type

If the µC owns ports of different port widths (e.g. 4, 8,16...Bit) Dio_ Port Level Type inherits the size of the larg est port.

Dio_PortType type

Numeric ID of a DIO port.

Gpt

Gpt_CheckWakeup function

Checks if a wakeup capable GPT channel is the source for a wakeup event and calls the ECU state manager service Ecu M_ Set Wakeup Event in case of a valid GPT channel wakeup event.

void Gpt_CheckWakeup(EcuM_WakeupSourceType WakeupSource);

Gpt_DeInit function

Deinitializes the GPT driver.

void Gpt_DeInit(void);

Gpt_DisableNotification function

Disables the interrupt notification for a channel (relevant in normal mode).

void Gpt_DisableNotification(Gpt_ChannelType Channel);

Gpt_DisableWakeup function

Disables the wakeup interrupt of a channel (relevant in sleep mode).

void Gpt_DisableWakeup(Gpt_ChannelType Channel);

Gpt_EnableNotification function

Enables the interrupt notification for a channel (relevant in normal mode).

void Gpt_EnableNotification(Gpt_ChannelType Channel);

Gpt_EnableWakeup function

Enables the wakeup interrupt of a channel (relevant in sleep mode).

void Gpt_EnableWakeup(Gpt_ChannelType Channel);

Gpt_GetPredefTimerValue function

Delivers the current value of the desired GPT Predef Timer.

Std_ReturnType Gpt_GetPredefTimerValue(Gpt_PredefTimerType PredefTimer, uint32* TimeValuePtr);

Gpt_GetTimeElapsed function

Returns the time already elapsed.

Gpt_ValueType Gpt_GetTimeElapsed(Gpt_ChannelType Channel);

Gpt_GetTimeRemaining function

Returns the time remaining until the target time is reached.

Gpt_ValueType Gpt_GetTimeRemaining(Gpt_ChannelType Channel);

Gpt_GetVersionInfo function

Returns the version information of this module.

void Gpt_GetVersionInfo(Std_VersionInfoType* VersionInfoPtr);

Gpt_Init function

Initializes the GPT driver.

void Gpt_Init(const Gpt_ConfigType* ConfigPtr);

Gpt_Notification_channel function

void Gpt_Notification_<channel>(void);

Gpt_SetMode function

Sets the operation mode of the GPT.

void Gpt_SetMode(Gpt_ModeType Mode);

Gpt_StartTimer function

Starts a timer channel.

void Gpt_StartTimer(Gpt_ChannelType Channel, Gpt_ValueType Value);

Gpt_StopTimer function

Stops a timer channel.

void Gpt_StopTimer(Gpt_ChannelType Channel);

Gpt_ChannelType type

Numeric ID of a GPT channel.

Gpt_ConfigType type

This is the type of the data structure including the configuration set required for initializing the GPT timer unit.

Gpt_ModeType type

Modes of the GPT driver.

Gpt_PredefTimerType type

Type for GPT Predef Timers

Gpt_ValueType type

Type for reading and setting the timer values (in number of ticks).

Icu

Icu_CheckWakeup function

Checks if a wakeup capable ICU channel is the source for a wakeup event and calls the ECU state manager service Ecu M_ Set Wakeup Event in case of a valid ICU channel wakeup event.

void Icu_CheckWakeup(EcuM_WakeupSourceType WakeupSource);

Icu_DeInit function

This function de - initializes the ICU module.

void Icu_DeInit(void);

Icu_DisableEdgeCount function

This function disables the counting of edges of the given channel.

void Icu_DisableEdgeCount(Icu_ChannelType Channel);

Icu_DisableEdgeDetection function

This function disables the detection of edges of the given channel.

void Icu_DisableEdgeDetection(Icu_ChannelType Channel);

Icu_DisableNotification function

This function disables the notification of a channel.

void Icu_DisableNotification(Icu_ChannelType Channel);

Icu_DisableNotificationAsync function

This function disables the notification of a channel.

void Icu_DisableNotificationAsync(Icu_ChannelType Channel);

Icu_DisableWakeup function

This function disables the wakeup capability of a single ICU channel.

void Icu_DisableWakeup(Icu_ChannelType Channel);

Icu_EnableEdgeCount function

This function enables the counting of edges of the given channel.

void Icu_EnableEdgeCount(Icu_ChannelType Channel);

Icu_EnableEdgeDetection function

This function enables / re - enables the detection of edges of the given channel.

void Icu_EnableEdgeDetection(Icu_ChannelType Channel);

Icu_EnableNotification function

This function enables the notification on the given channel.

void Icu_EnableNotification(Icu_ChannelType Channel);

Icu_EnableNotificationAsync function

This function enables the notification on the given channel.

void Icu_EnableNotificationAsync(Icu_ChannelType Channel);

Icu_EnableWakeup function

This function (re - )enables the wakeup capability of the given ICU channel.

void Icu_EnableWakeup(Icu_ChannelType Channel);

Icu_GetDutyCycleValues function

This function reads the coherent active time and period time for the given ICU Channel.

void Icu_GetDutyCycleValues(Icu_ChannelType Channel, Icu_DutyCycleType* DutyCycleValues);

Icu_GetInputState function

This function returns the status of the ICU input.

Icu_InputStateType Icu_GetInputState(Icu_ChannelType Channel);

Icu_GetTimeElapsed function

Description This function reads the elapsed Signal Low Time for the given channel.

Icu_ValueType Icu_GetTimeElapsed(Icu_ChannelType Channel);

Icu_GetTimestampIndex function

This function reads the timestamp index of the given channel.

Icu_IndexType Icu_GetTimestampIndex(Icu_ChannelType Channel);

Icu_GetVersionInfo function

This function returns the version information of this module.

void Icu_GetVersionInfo(Std_VersionInfoType* versioninfo);

Icu_Init function

This function initializes the driver.

void Icu_Init(const Icu_ConfigType* ConfigPtr);

Icu_ResetEdgeCount function

This function resets the value of the counted edges to zero.

void Icu_ResetEdgeCount(Icu_ChannelType Channel);

Icu_SetActivationCondition function

This function sets the activation - edge for the given channel.

void Icu_SetActivationCondition(Icu_ChannelType Channel, Icu_ActivationType Activation);

Icu_SetMode function

This function sets the ICU mode.

void Icu_SetMode(Icu_ModeType Mode);

Icu_SignalNotification_Channel function

According to the last call of Icu_ Enable Notification, this notification function to be called if the requested signal edge (rising / falling / both edges) occurs (once per edge).

void Icu_SignalNotification_<Channel>(void);

Icu_StartSignalMeasurement function

This function starts the measurement of signals.

void Icu_StartSignalMeasurement(Icu_ChannelType Channel);

Icu_StartTimestamp function

This function starts the capturing of timer values on the edges.

void Icu_StartTimestamp(Icu_ChannelType Channel, Icu_ValueType* BufferPtr, uint16 BufferSize, uint16 NotifyInterval);

Icu_StopSignalMeasurement function

This function stops the measurement of signals of the given channel.

void Icu_StopSignalMeasurement(Icu_ChannelType Channel);

Icu_StopTimestamp function

This function stops the timestamp measurement of the given channel.

void Icu_StopTimestamp(Icu_ChannelType Channel);

Icu_TimestampNotification_Channel function

This notification to be called if the number of requested timestamps (Notification interval > 0) are acquired and if the notification has been enabled by the call of Icu_ Enable Notification().

void Icu_TimestampNotification_<Channel>(void);

NumberTypeIcu_GetEdgeNumbers function

This function reads the number of counted edges.

Icu_EdgeNumberType Icu_GetEdgeNumbers(Icu_ChannelType Channel);

Icu_ActivationType type

Definition of the type of activation of an ICU channel.

Icu_ChannelType type

Numeric identifier of an ICU channel Avail able via Icu.h

Icu_ConfigType type

This type contains initialization data.

Icu_DutyCycleType type

Type which shall contain the values, needed for calculating duty cycles.

Icu_EdgeNumberType type

Type, to abstract the return value of the service Icu_ Get Edge Numbers().

Icu_IndexType type

Type, to abstract the return value of the service Icu_ Get Timestamp Index().Since circular buffer handling is supported and Icu_ Get Timestamp Index can return '0' as a legally true value ( not as an error according to ICU107 and ICU135), Icu_ Index Type may be implemented to have values 1..xyz.

Icu_InputStateType type

Input state of an ICU channel

Icu_MeasurementModeType type

Definition of the measurement mode type

Icu_ModeType type

Allow enabling / disabling of all interrupts which are not required for the ECU wakeup.

Icu_SignalMeasurementPropertyType type

Def inition of the measurement property type

Icu_TimestampBufferType type

Definition of the timestamp measurement property type

Icu_ValueType type

Width of the buffer for timestamp ticks and measured elapsed timeticks.

IoHwAb

<#group ID> function

Will be called by the ADC Driver when a group conversion is completed for group <#group ID>.

void IoHwAb_AdcNotification<#group ID>(void);

<Ecu Signal Name> function

This function provides control access to a certain ECU Signal t o the DCM module (<Ecu Signalname> is the symbolic name of an ECU Signal). The ECU signal can be locked and unlocked by this function. Locking 'freezes' the ECU signal to the current value, the configured default value or a value given by the parameter 'si gnal'.

void IoHwAb_Dcm_<Ecu Signal Name>(uint8 action, <Ecu Signal DataType> signal);

<Ecu Signal Name>#2 function

This function provides read access to a certain ECU Signal to the DCM module (<Ecu Signalname> is the symbolic name of an ECU Signal).

void IoHwAb_Dcm_Read<Ecu Signal Name>(<Ecu Signal DataType>* signal);

IoHwAb_Adc_NotifyReadyForPowerState#Mode function

The API shall be invoked by the ADC Driver when the requested power state preparation for mode <#Mode> is completed.

void IoHwAb_Adc_NotifyReadyForPowerState<#Mode>(void);

IoHwAb_EnterPowerState#Mode function

The API shall be invoked by the Io Hw Abs in order to effectively enter a power state which was prepared by the API Io Hw Ab_ Prepare Power State<#Mode> () . The aim of this API is to incapsulate all actions to set the HW in a power state corresponding to a predefined power mode, decoupling application power definition from HW power states.

void IoHwAb_EnterPowerState<#Mode>(void);

IoHwAb_GetVersionInfo function

Returns the version information of this module.

void IoHwAb_GetVersionInfo(Std_VersionInfoType* versioninfo);

IoHwAb_GptNotification#channel function

Will be called by the GPT driver when a timer value expires on channel <#channel>.

void IoHwAb_GptNotification<#channel>(void);

IoHwAb_IcuNotification#channel function

Will be called by the ICU driver when a signal edge occurs on channel <#channel>.

void IoHwAb_IcuNotification<#channel>(void);

IoHwAb_InitInit_Id function

Initializes either all the IO Hardware Abstraction software or is a part of the IO Hardware Abstraction.

void IoHwAb_Init<Init_Id>(const IoHwAb{Init_Id}_ConfigType* ConfigPtr);

IoHwAb_OcuNotification#channel function

Will be called by the OCU driver when the current value of the threshold matches the threshold on the channel<#channel>.

void IoHwAb_OcuNotification<#channel>(void);

IoHwAb_PreparePowerState#Mode function

The API shall be invoked by the Io Hw Abs in order to prepare the transition to a given power state. The aim of this API is to incapsulate all actions to prepare the HW for a predefined power mode, decoupling application power definition from HW power stat es.

void IoHwAb_PreparePowerState<#Mode>(void);

IoHwAb_Pwm_NotifyReadyForPowerState#Mode function

The API shall be invoked by the PWM Driver when the requested power state preparation for mode <#Mode> is completed.

void IoHwAb_Pwm_NotifyReadyForPowerState<#Mode>(void);

IoHwAb_PwmNotification#channel function

Will be called by the PWM Driver when a signal edge occurs on channel <#channel>.

void IoHwAb_PwmNotification<#channel>(void);

IoHwAb{Init_Id}_ConfigType type

Configuration data structure of the Io Hw Ab module.

Mcu

Mcu_DistributePllClock function

This service activates the PLL clock to the MCU clock distribution.

Std_ReturnType Mcu_DistributePllClock(void);

Mcu_GetRamState function

This service provides the actual status of the microcontroller Ram. (if supported)

Mcu_RamStateType Mcu_GetRamState(void);

Mcu_GetResetReason function

The service reads the reset type from the hardware, if supported.

Mcu_ResetType Mcu_GetResetReason(void);

Mcu_GetVersionInfo function

This service returns the version information of this module.

void Mcu_GetVersionInfo(Std_VersionInfoType* versioninfo);

Mcu_Init function

This service initializes the MCU driver.

void Mcu_Init(const Mcu_ConfigType* ConfigPtr);

Mcu_InitClock function

This service initializes the PLL and other MCU specific clock options.

Std_ReturnType Mcu_InitClock(Mcu_ClockType ClockSetting);

Mcu_InitRamSection function

This service initializes the RAM section wise.

Std_ReturnType Mcu_InitRamSection(Mcu_RamSectionType RamSection);

Mcu_PerformReset function

The service performs a microcontroller reset.

void Mcu_PerformReset(void);

Mcu_SetMode function

This service activates the MCU power modes.

void Mcu_SetMode(Mcu_ModeType McuMode);

ResetTypeMcu_GetResetRawValue function

The service reads the reset type from the hardware register, if supported.

Mcu_RawResetType Mcu_GetResetRawValue(void);

StatusTypeMcu_GetPllStatus function

This service provides the lock status of the PLL.

Mcu_PllStatusType Mcu_GetPllStatus(void);

Mcu_ClockType type

Specifies the identification (ID) for a clock setting, which is configured in the configuration structure

Mcu_ConfigType type

A pointer to such a structure is provided to the MCU initialization routines for configuration.

Mcu_ModeType type

Name Mcu_ Mode Type Kind Type Derived from uint Range 0..<number of MCU modes> - 1 -- The range is dependent on the number of MCU modes provided in the configuration structure. The type shall be chosen depending on MCU platform for best performance. Des cription This type specifies the identification (ID) for a MCU mode, which is configured in the configuration structure. Available via Mcu.h

Mcu_PllStatusType type

This is a status value returned by the function Mcu_ Get Pll Status of the MCU module.

Mcu_RamSectionType type

This type specifies the identification (ID) for a RAM section, which is conf igured in the configuration structure.

Mcu_RamStateType type

This is the Ram State data type returned by the function Mcu_ Get Ram State of the Mcu module. It is not required that all RAM state types are supported by the hardware.

Mcu_RawResetType type

This type specifies the reset reason in raw register format read from a reset status register.

Mcu_ResetType type

This is the type of the reset enumerator containing the subset of reset types. It is not required that all reset types are supported by hardware.

Ocu

Ocu_DeInit function

This function de - initializes the OCU module.

void Ocu_DeInit(void);

Ocu_DisableNotification function

This service is used to disable notifications from an OCU channel.

void Ocu_DisableNotification(Ocu_ChannelType ChannelNumber);

Ocu_EnableNotification function

This service is used to enable notifications from an OCU channel.

void Ocu_EnableNotification(Ocu_ChannelType ChannelNumber);

Ocu_GetCounter function

Service to read the current value of the counter.

Ocu_ValueType Ocu_GetCounter(Ocu_ChannelType ChannelNumber);

Ocu_GetVersionInfo function

This service returns the version information of this module.

void Ocu_GetVersionInfo(Std_VersionInfoType* versioninfo);

Ocu_Init function

Service for OCU initialization.

void Ocu_Init(const Ocu_ConfigType* ConfigPtr);

Ocu_Notification_Channel function

This notification function is called when a compare match occurs on the associated channel.

void Ocu_Notification_<Channel>(void);

Ocu_SetAbsoluteThreshold function

Service to set the value of the channel threshold using an absolute input data.

Ocu_ReturnType Ocu_SetAbsoluteThreshold(Ocu_ChannelType ChannelNumber, Ocu_ValueType ReferenceValue, Ocu_ValueType AbsoluteValue);

Ocu_SetPinAction function

Service to indicate the driver what shall be done automatically by hardware (if supported) upon compare match.

void Ocu_SetPinAction(Ocu_ChannelType ChannelNumber, Ocu_PinActionType PinAction);

Ocu_SetPinState function

Service to set immediately the level of the pin associated to an OCU channel.

void Ocu_SetPinState(Ocu_ChannelType ChannelNumber, Ocu_PinStateType PinState);

Ocu_SetRelativeThreshold function

Service to set the value of the channel threshold relative to the current value of the counter.

Ocu_ReturnType Ocu_SetRelativeThreshold(Ocu_ChannelType ChannelNumber, Ocu_ValueType RelativeValue);

Ocu_StartChannel function

Service to start an OCU channel.

Std_ReturnType Ocu_StartChannel(Ocu_ChannelType ChannelNumber);

Ocu_StopChannel function

Service to stop an OCU channel.

void Ocu_StopChannel(Ocu_ChannelType ChannelNumber);

Ocu_ChannelType type

Numeric identifier of an OCU channel.

Ocu_ConfigType type

This is the type of the data structure containing the initialization data for the OCU driver.

Ocu_PinActionType type

Automatic action (by hardware) to be performed on a pin attached to an OCU channel. A vailable via Ocu.h

Ocu_PinStateType type

Output state of the pin linked to an OCU channel.

Ocu_ReturnType type

Return information after setting a new threshold value.

Ocu_ValueType type

Type for reading the counter and writing the threshold values (in number of ticks).

Port

Port_GetVersionInfo function

Returns the version information of this module.

void Port_GetVersionInfo(Std_VersionInfoType* versioninfo);

Port_Init function

Initializes the Port Driver module.

void Port_Init(const Port_ConfigType* ConfigPtr);

Port_RefreshPortDirection function

Refreshes port direction.

void Port_RefreshPortDirection(void);

Port_SetPinDirection function

Sets the port pin direction

void Port_SetPinDirection(Port_PinType Pin, Port_PinDirectionType Direction);

Port_SetPinMode function

Sets the port pin mode.

void Port_SetPinMode(Port_PinType Pin, Port_PinModeType Mode);

Port_ConfigType type

Type of the external data structure containing the initialization data for this module.

Port_PinDirectionType type

Possible directions of a port pin.

Port_PinModeType type

Different port pin modes.

Port_PinType type

Data type for the symbolic name of a port pin.

Pwm

IoHwAb_Pwm_NotifyReadyForPowerState function

The API shall be invoked by the PWM Driver when the requested power state preparation for mode <#Mode> is completed.

void IoHwAb_Pwm_NotifyReadyForPowerState<#Mode> (void);

Pwm_DeInit function

Service for PWM De - Initialization.

void Pwm_DeInit (void);

Pwm_DisableNotification function

Service to disable the PWM signal edge notification.

void Pwm_DisableNotification (Pwm_ChannelType ChannelNumber);

Pwm_EnableNotification function

Service to enable the PWM signal edge notification according to notification pa rameter.

void Pwm_EnableNotification (Pwm_ChannelType ChannelNumber, Pwm_EdgeNotificationType Notification);

Pwm_GetCurrentPowerState function

This API returns the current power state of the PWM HW unit. AUTOSAR CP R20 - of Document ID : AUTOSAR_SWS_PWMDriver

Std_ReturnType Pwm_GetCurrentPowerState (Pwm_PowerStateType* CurrentPowerState, Pwm_PowerStateRequestResultType* Result);

Pwm_GetOutputState function

Service to read the internal state of the PWM out put signal.

Pwm_OutputStateType Pwm_GetOutputState (Pwm_ChannelType ChannelNumber);

Pwm_GetTargetPowerState function

This API returns the Target power state of the PWM HW unit.

Std_ReturnType Pwm_GetTargetPowerState (Pwm_PowerStateType* TargetPowerState, Pwm_PowerStateRequestResultType* Result);

Pwm_GetVersionInfo function

Service returns the version information of this module.

void Pwm_GetVersionInfo (Std_VersionInfoType* versioninfo);

Pwm_Init function

Service for PWM initialization.

void Pwm_Init (const Pwm_ConfigType* ConfigPtr);

Pwm_Main_PowerTransitionManager function

This API is cyclically called and supervises the power state transitions, checking for the readiness of the module and issuing the callbacks Io Hw Ab_ Pwm_ Notify Ready For Power State (see Pwm Power State Ready Cb k Ref configuration parameter). AUTOSAR CP R20 - of Document ID : AUTOSAR_SWS_PWMDriver

void Pwm_Main_PowerTransitionManager (void);

Pwm_Notification_ function

The Pwm module shall call the function Pwm_ Notification_<#Channel> accordingly to the last call of Pwm_ Enable Notification for channel <#Channel>.

void Pwm_Notification_<#Channel> (void);

Pwm_PreparePowerState function

This API starts the needed process to allow the PWM HW module to enter the requested power state. AUTOSAR CP R20 - of Document ID : AUTOSAR_SWS_PWMDriver

Std_ReturnType Pwm_PreparePowerState (Pwm_PowerStateType PowerState, Pwm_PowerStateRequestResultType* Result);

Pwm_SetDutyCycle function

Service sets the duty cycle of the PWM channel.

void Pwm_SetDutyCycle (Pwm_ChannelType ChannelNumber, uint16 DutyCycle);

Pwm_SetOutputToIdle function

Service sets the PWM output to the configured Idle state.

void Pwm_SetOutputToIdle (Pwm_ChannelType ChannelNumber);

Pwm_SetPeriodAndDuty function

Service sets the period and the duty cycle of a PWM channel

void Pwm_SetPeriodAndDuty (Pwm_ChannelType ChannelNumber, Pwm_PeriodType Period, uint16 DutyCycle);

Pwm_SetPowerState function

This API configures the Pwm module so that it enters the already prepared power st ate, chosen between a predefined set of configured ones.

Std_ReturnType Pwm_SetPowerState (Pwm_PowerStateRequestResultType* Result);

Pwm_ChannelClassType type

Defines the class of a PWM channel

Pwm_ChannelType type

Nume ric identifier of a PWM channel.

Pwm_ConfigType type

This is the type of data structure containing the initialization data for the PWM driver.

Pwm_EdgeNotificationType type

Definition of the type of edge notification of a PWM channel.

Pwm_OutputStateType type

Output state of a PWM channel.

Pwm_PeriodType type

Definition of the period of a PWM channel.

Pwm_PowerStateRequestResultType type

Result of the requests related to power state transitions.

Pwm_PowerStateType type

Power state currently active or set as target power state.

Spi

JobEnd function

Callback routine provided by the user for each Job to notify the caller that a job has been finished.

void(* Spi_JobEndNotification); ⚠️

ResultTypeSpi_GetJobResult function

This service returns the last transmission result of the specified Job.

Spi_JobResultType Spi_GetJobResult(Spi_JobType Job);

ResultTypeSpi_GetSequenceResult function

This service returns the last transmission result of the specified Sequence.

Spi_SeqResultType Spi_GetSequenceResult(Spi_SequenceType Sequence);

SeqEnd function

Callback routine provided by the user for each Sequence to notify the caller that a sequence has been finished.

void(* Spi_SeqEndNotification); ⚠️

Spi_AsyncTransmit function

Service to transmit data on the SPI bus.

Std_ReturnType Spi_AsyncTransmit(Spi_SequenceType Sequence);

Spi_Cancel function

Service cancels the specified on - going sequence transmission.

void Spi_Cancel(Spi_SequenceType Sequence);

Spi_DeInit function

Service for SPI de - initialization.

Std_ReturnType Spi_DeInit(void);

Spi_GetHWUnitStatus function

This service returns the status of the specified SPI Hardware microcontroller peripheral.

Spi_StatusType Spi_GetHWUnitStatus(Spi_HWUnitType HWUnit);

Spi_GetStatus function

Service returns the SPI Handler/ Driver software module status.

Spi_StatusType Spi_GetStatus(void);

Spi_GetVersionInfo function

This service returns the version information of this module.

void Spi_GetVersionInfo(Std_VersionInfoType* versioninfo);

Spi_Init function

Service for SPI initialization.

void Spi_Init(const Spi_ConfigType* ConfigPtr);

Spi_MainFunction_Handling function

void Spi_MainFunction_Handling(void);

Spi_ReadIB function

Service for reading synchronously one or more data from an IB SPI Handler/ Driver Channel specified by parameter.

Std_ReturnType Spi_ReadIB(Spi_ChannelType Channel, Spi_DataBufferType* DataBufferPointer);

Spi_SetAsyncMode function

Service to set the asynchronous mechanism mode for SPI busses handled asynchronously.

Std_ReturnType Spi_SetAsyncMode(Spi_AsyncModeType Mode);

Spi_SetupEB function

Service to setup the buffers and the length of data for the EB SPI Handle r/ Driver Channel specified.

Std_ReturnType Spi_SetupEB(Spi_ChannelType Channel, const Spi_DataBufferType* SrcDataBufferPtr, Spi_DataBufferType* DesDataBufferPtr, Spi_NumberOfDataType Length);

Spi_SyncTransmit function

Service to transmit data on the SPI bus

Std_ReturnType Spi_SyncTransmit(Spi_SequenceType Sequence);

Spi_WriteIB function

Service for writing one or more data to an IB SPI Handler/ Driver Channel specified by parameter.

Std_ReturnType Spi_WriteIB(Spi_ChannelType Channel, const Spi_DataBufferType* DataBufferPtr);

Spi_AsyncModeType type

Specifies the asynchronous mechanism mode for SPI busses handled asynchronously.

Spi_ChannelType type

Specifies the identification (ID) for a Channel.

Spi_ConfigType type

This type of the external data structure shall contain the initialization data for the SPI Handler/ Driver.

Spi_DataBufferType type

Type of application data buffer elements.

Spi_HWUnitType type

Specifies the identification (ID) for a SPI Hardware microcontroller peripheral (unit).

Spi_JobResultType type

This type defines a range of specific Jobs status for SPI Handler/ Driver.

Spi_JobType type

Specifies the identification (ID) for a Job.

Spi_NumberOfDataType type

Type for defining the number of data elements of the type Spi_ Data Buffer Type to send and / or receive by Channel

Spi_SeqResultType type

This type defines a range of specific Sequences status for SPI Handler/ Driver.

Spi_SequenceType type

Specifies the identification (ID) for a sequence of jobs.

Spi_StatusType type

This type defines a range of specific status for SPI Handler/ Driver.

Wdg

Wdg_GetVersionInfo function

Returns the version information of the module.

void Wdg_GetVersionInfo (Std_VersionInfoType* versioninfo);

Wdg_Init function

Initializes the module.

void Wdg_Init (const Wdg_ConfigType* ConfigPtr);

Wdg_SetMode function

Switches the watchdog into the mode Mode. AUTOSAR CP R20 - of Document ID : AUTOSAR_SWS_WatchdogDriver

Std_ReturnType Wdg_SetMode (WdgIf_ModeType Mode);

Wdg_SetTriggerCondition function

Sets the timeout value for the trigger counter.

void Wdg_SetTriggerCondition (uint16 timeout);

Wdg_ConfigType type

Used for pointers to structures holding configuration data provided to the Wdg module initialization routine for configuration of the module and watchdog hardware.

WdgIf

WdgIf_GetVersionInfo function

Returns the version information.

void WdgIf_GetVersionInfo(Std_VersionInfoType* VersionInfoPtr);

WdgIf_SetMode function

Map the service Wdg If_ Set Mode to the serv ice Wdg_ Set Mode of the corresponding Watchdog Driver.

Std_ReturnType WdgIf_SetMode(uint8 DeviceIndex, WdgIf_ModeType WdgMode);

WdgIf_SetTriggerCondition function

Map the service Wdg If_ Set Trigger Condition to the service Wdg_ Set Trigger Condition of the corresponding Wa tchdog Driver.

void WdgIf_SetTriggerCondition(uint8 DeviceIndex, uint16 Timeout);

WdgIf_ModeType type

Mode type of the Wdg If module

Click an entry to see its relations.

Cluster guideAI-GENERATED

Provides low-level drivers for direct encapsulation and control of microcontroller peripherals and internal registers.

AI-GENERATED unreviewed Model: gemini-3.8-flash-medium · Effort: medium · Temperature: not controllable · Prompt: b04694a31489 Provenance Open questions (1)

translated from the German guidegemini-3.8-flash-low · 2026-10-13 · German original

Provides low-level drivers for direct encapsulation and control of microcontroller peripherals and internal registers.

The Microcontroller Abstraction (MCAL) module cluster comprises the drivers Port, Dio, Adc, Pwm, Spi, and Wdg for low-level encapsulation and control of on-chip peripherals (SWS_ECUStateManager p. 34). The core tasks include pin configuration prior to peripheral access, analog and pulse-modulated signal management, as well as time-monitored execution control ([SWS_Adc_00507], [SWS_Wdg_00155]). Central mode and power state transitions must be executed strictly sequentially and non-reentrantly ([SWS_Wdg_00107]).

The Microcontroller Abstraction (MCAL) module cluster encapsulates the physical on-chip resources of the microcontroller and provides standardized interfaces for the I/O hardware abstraction (IoHwAb), the watchdog interface (WdgIf), as well as EcuM and BswM (SWS_ECUStateManager p. 34). It comprises the six driver modules Port (pin multiplexing), Dio (digital input/output), Adc (analog-to-digital conversion), Pwm (pulse-width modulation), Spi (serial peripheral communication), and Wdg (hardware execution monitoring) ([SWS_Adc_00507], [SWS_Pwm_00197], [SWS_Wdg_00155]).

The modules operate within fixed dependencies: Port_Init sets up the pin assignment before drivers such as Pwm or Adc activate the associated hardware blocks (AUTOSAR_CP_RS_PWMDriver p. 14, ModemanagementGuide p. 54). Data buffers are provided on the application side via Adc_SetupResultBuffer ([SWS_Adc_91000]), while watchdog servicing is decoupled asynchronously via timer interrupts (AUTOSAR_SWS_WatchdogDriver p. 31).

Architecture diagram: Layer architecture and classification of the MCAL cluster. Sources: SWS_ECUStateManager p. 34, AUTOSAR_CP_RS_PWMDriver p. 14.

While channel- and group-related driver calls are reentrant for disjoint instances ([SWS_Pwm_91000], [SWS_Adc_00367]), mode and state transitions require strictly synchronous, non-reentrant paths ([SWS_Wdg_00107]). To reduce power consumption, Adc and Pwm execute two-phase power state transitions with asynchronous readiness notifications to IoHwAb ([SWS_Adc_00478], [SWS_Pwm_00183], AUTOSAR_CP_SWS_IOHardwareAbstraction p. 57).

Incorrect operations such as uninitialized calls are reported to the DET ([SWS_Pwm_00177]), whereas hardware defects are reported to the DEM ([SWS_Wdg_00111]). In degradation scenarios, Wdg_SetTriggerCondition allows a targeted ECU reset to be induced by passing timeout 0 ([SWS_Wdg_00155], SWS_WatchdogDriver p. 29).

System Architecture & Role of the Module Cluster

The module cluster of the Microcontroller Abstraction Layer (MCAL) forms the lowest-level foundation of the AUTOSAR Classic Platform close to the hardware. It encapsulates the register accesses of the on-chip peripheral units and provides upper layers with a standardized, microcontroller-independent interface. Within the layered architecture, the drivers serve the I/O Hardware Abstraction (IoHwAb), the Watchdog Interface (WdgIf), as well as central system services such as the ECU State Manager (EcuM) and the Basic Software Mode Manager (BswM) (SWS_ECUStateManager p. 34).

The cluster comprises six complementary driver components: Port handles the global pin configuration and the multiplexing of the microcontroller pins (AUTOSAR_CP_RS_PWMDriver p. 14). Dio implements fast, bit- and port-wise digital I/O access, while Spi encapsulates synchronous and asynchronous serial bus communications to on-board peripheral components. For analog and pulse-modulated signals, Adc ([SWS_Adc_00507]) and Pwm ([SWS_Pwm_00197]) provide advanced conversion and modulation services. Wdg controls hardware-based time monitoring to safeguard program execution integrity ([SWS_Wdg_00155]).

Architecture diagram: Layered architecture and structural placement of the MCAL cluster between system services, abstraction layers, and peripherals. Sources: SWS_ECUStateManager p. 34, AUTOSAR_CP_RS_PWMDriver p. 14, AUTOSAR_SWS_WatchdogDriver p. 11.

Interplay & Interaction Paths Between the Modules

The modules operate in clearly defined signal and buffer flows. The driver Port pre-initializes the electrical port logic and multiplexing, after which drivers such as Pwm or Adc drive the assigned peripheral blocks without needing knowledge of the pad circuitry (AUTOSAR_CP_RS_PWMDriver p. 14). When reading internal logic states via [SWS_Pwm_00100], Pwm_GetOutputState reads the register state of the PWM unit rather than the physical port pin ([SWS_Pwm_00108], AUTOSAR_SWS_PWMDriver p. 51).

In the analog path, the higher-level IoHwAb requests conversions and provides application-side buffers (AUTOSAR_CP_SWS_IOHardwareAbstraction p. 55). Using [SWS_Adc_91000], Adc_SetupResultBuffer initializes the internal pointer to the caller's memory area (AUTOSAR_SWS_ADCDriver p. 31). After triggering a conversion via software ([SWS_Adc_00367]) or hardware trigger ([SWS_Adc_91001]), raw data is written to the buffer. Read access occurs synchronously via [SWS_Adc_00369] (copying the most recent results) or via [SWS_Adc_00375] using Adc_GetStreamLastPointer (SWS_ADCDriver p. 27).

The watchdog path separates logical program flow monitoring from hardware servicing: The WdgM controls monitoring budgets and sets the time window in Wdg_SetTriggerCondition via the WdgIf with [SWS_Wdg_00155] (SWS_WatchdogDriver p. 29). Actual hardware servicing occurs cyclically via hardware timer interrupts (AUTOSAR_SWS_WatchdogDriver p. 31). External watchdog devices are addressed as needed via driver instances of Dio or Spi ([SWS_Wdg_00111], AUTOSAR_SWS_WatchdogDriver p. 11).

Sequence diagram: Interaction of WdgM, WdgIf, and Wdg during cyclic trigger extension and mode switching. Sources: AUTOSAR_SWS_WatchdogDriver p. 31, AUTOSAR_SWS_WatchdogDriver p. 34, [SWS_Wdg_00155], [SWS_Wdg_00107].

Synchronization, reentrancy and task contexts

The MCAL drivers are subject to differentiated reentrancy rules. In module Pwm, control functions such as Pwm_SetDutyCycle ([SWS_Pwm_91000]), Pwm_SetPeriodAndDuty ([SWS_Pwm_91001]), and Pwm_SetOutputToIdle ([SWS_Pwm_91002]) are reentrant for different channels, but must not be called concurrently for the same channel (AUTOSAR_CP_SWS_PWMDriver p. 46). In module Adc, control and read APIs such as Adc_StartGroupConversion ([SWS_Adc_00367]), Adc_StopGroupConversion ([SWS_Adc_00368]), and Adc_ReadGroup ([SWS_Adc_00369]) are reentrant with respect to different channel groups.

In contrast, central configuration and mode APIs are designed to be strictly non-reentrant. This applies to Wdg_SetMode ([SWS_Wdg_00107]), Wdg_SetTriggerCondition ([SWS_Wdg_00155]), and the initialization and de-initialization routines of all drivers ([SWS_Adc_00366], [SWS_Pwm_00096]). Concurrent calls from different OS tasks must be protected via SchM exclusive areas (AUTOSAR_SWS_WatchdogDriver p. 11).

Notifications of events (e.g., edge changes or conversion end) are triggered from interrupt context (ISR) via configurable callbacks such as Pwm_Notification_<#Channel> ([SWS_Pwm_00105]) or Adc_Notification_Group_<x> ([SWS_Adc_91003]). When activating notifications, pending interrupt flags are cleared ([SWS_Pwm_91004]). If multiple ADC groups compete for converter resources, hardware prioritization or software queuing ([SWS_Adc_00522]) with a configurable abort/restart or suspend/resume mechanism applies depending on the configuration ([SWS_Adc_00523], SWS_ADCDriver p. 97).

Typical lifecycles and operating modes

The lifecycle of the MCAL drivers begins in the startup phase of the overall system under the control of the EcuM (SWS_ECUStateManager p. 34). A deterministic order is enforced via BswM rules: First, Port_Init initializes the pin functionalities (ModemanagementGuide p. 54). Only then do peripheral drivers such as Dio_Init, Spi_Init, Adc_Init ([SWS_Adc_00365]), Pwm_Init ([SWS_Pwm_00095]), and Wdg_Init follow ([SWS_Wdg_00106], AUTOSAR_CP_SWS_PWMDriver p. 47).

During operation, Wdg recognizes three static modes: WDGIF_OFF_MODE, WDGIF_SLOW_MODE, and WDGIF_FAST_MODE ([SWS_Wdg_00107]). Module Adc distinguishes between one-shot and continuous conversions ([SWS_Adc_00515]) as well as single and streaming access modes ([SWS_Adc_00528], [SWS_Adc_00519]). The group status passes through the states ADC_IDLE, ADC_BUSY, ADC_COMPLETED, and ADC_STREAM_COMPLETED ([SWS_Adc_00513], [SWS_Adc_00374], SWS_ADCDriver p. 37).

For low-power modes, Adc and Pwm implement a standardized two-phase power-state protocol: First, Adc_PreparePowerState ([SWS_Adc_00478]) and Pwm_PreparePowerState ([SWS_Pwm_00183]) prepare the transition ([SWS_Pwm_00165], [SWS_Adc_00527]). After asynchronous completion, the hardware abstraction reports readiness via callbacks such as IoHwAb_Adc_NotifyReadyForPowerState<#Mode> ([SWS_Adc_00480]). Finally, Adc_SetPowerState ([SWS_Adc_00475]) and Pwm_SetPowerState ([SWS_Pwm_00166]) switch the hardware to the target state (AUTOSAR_CP_SWS_IOHardwareAbstraction p. 57). Cyclic monitoring is ensured in tasks by Pwm_Main_PowerTransitionManager ([SWS_Pwm_00189], [SWS_Pwm_00190]).

During system shutdown or reset, de-initialization services such as Adc_DeInit ([SWS_Adc_00366], AUTOSAR_SWS_ADC_Driver p. 76) and Pwm_DeInit ([SWS_Pwm_00096], AUTOSAR_SWS_PWMDriver p. 47) transition the units to a safe quiescent state and disable all interrupts.

Sequence diagram: Two-phase asynchronous power-state transition in the MCAL cluster via BswM and IoHwAb. Sources: AUTOSAR_CP_SWS_IOHardwareAbstraction p. 57, [SWS_Adc_00478], [SWS_Pwm_00183], [SWS_Adc_00475], [SWS_Pwm_00166].

Error Handling, DET Tracing, and Degradation

Errors are strictly separated into development and production errors. When development error detection is active, the drivers report calls prior to completed initialization to the Default Error Tracer (DET), for example via PWM_E_UNINIT ([SWS_Pwm_00177], [SWS_Pwm_00104]) or ADC_E_UNINIT ([SWS_Adc_00476]). Pointer parameters are checked for NULL, such as in GetVersionInfo via ADC_E_PARAM_POINTER ([SWS_Adc_00376]) and WDG_E_PARAM_POINTER ([SWS_Wdg_00109]).

Runtime errors safeguard against invalid operational transitions: If Pwm_SetPowerState is called while channels are not in the IDLE state or active notifications are still pending, the driver reports runtime error PWM_E_NOT_DISENGAGED ([SWS_Pwm_00202]). In Adc, the attempt to re-trigger an occupied channel group in configurations without queuing leads to runtime report ADC_E_BUSY to the DET (SWS_ADCDriver p. 95).

Severe production errors and peripheral failures are reported to the Diagnostic Event Manager (DEM) via Dem_SetEventStatus ([SWS_Wdg_00111]). For degradation into limp-home modes, Pwm_SetOutputToIdle provides the immediate deactivation of individual PWM outputs ([SWS_Pwm_91002]). In the watchdog driver, setting the trigger timeout to the value 0 allows servicing to be stopped immediately, forcing a prompt ECU reset ([SWS_Wdg_00155], [SWS_Wdg_00136], SWS_WatchdogDriver p. 29).

This guide is based exclusively on the specifications and traceability artifacts of the AUTOSAR Classic R20-11 payload.

Module im Cluster

ADC Driver (Adc)

Provides initialization and conversion services for analog-to-digital converters.

BSW ID 123 43 APIs (19 Funktionen, 24 Typen) #include "Adc.h"

Core Test (CorTst)

AUTOSAR Classic Microcontroller Drivers-Modul Core Test (CorTst, Spezifikation: AUTOSAR_CP_SWS_CoreTest.pdf, AUTOSAR_SWS_CoreTest.pdf).

BSW ID 103 11 APIs (11 Funktionen, 0 Typen) #include "CorTst.h"

DIO Driver (Dio)

AUTOSAR Classic I/O Drivers-Modul DIO Driver (Dio, Spezifikation: AUTOSAR_CP_SWS_DIODriver.pdf, AUTOSAR_SWS_DIODriver.pdf, AUTOSAR_SWS_DIO_Driver.pdf).

BSW ID 120 9 APIs (9 Funktionen, 0 Typen) #include "Dio.h"

GPT Driver (Gpt)

AUTOSAR Classic Microcontroller Drivers-Modul GPT Driver (Gpt, Spezifikation: AUTOSAR_CP_SWS_GPTDriver.pdf, AUTOSAR_SWS_GPTDriver.pdf, AUTOSAR_SWS_GPT_Driver.pdf).

BSW ID 100 15 APIs (15 Funktionen, 0 Typen) #include "Gpt.h"

I2C Driver (I2c)

AUTOSAR Classic Communication Drivers-Modul I2C Driver (I2c, Spezifikation: AUTOSAR_CP_SWS_I2CDriver.pdf).

Keine C-API · 0 Records #include "I2c.h"

ICU Driver (Icu)

AUTOSAR Classic I/O Drivers-Modul ICU Driver (Icu, Spezifikation: AUTOSAR_CP_SWS_ICUDriver.pdf, AUTOSAR_SWS_ICUDriver.pdf, AUTOSAR_SWS_ICU_Driver.pdf).

BSW ID 122 28 APIs (28 Funktionen, 0 Typen) #include "Icu.h"

I/O Hardware Abstraction (IoHwAb)

AUTOSAR Classic I/O HW Abstraction-Modul I/O Hardware Abstraction (IoHwAb, Spezifikation: AUTOSAR_CP_SWS_IOHardwareAbstraction.pdf, AUTOSAR_SWS_IOHardwareAbstraction.pdf, AUTOSAR_SWS_IO_HWAbstraction.pdf).

BSW ID 254 13 APIs (13 Funktionen, 0 Typen) #include "IoHwAb.h"

MCU Driver (Mcu)

AUTOSAR Classic Microcontroller Drivers-Modul MCU Driver (Mcu, Spezifikation: AUTOSAR_CP_SWS_MCUDriver.pdf, AUTOSAR_SWS_MCUDriver.pdf, AUTOSAR_SWS_MCU_Driver.pdf).

BSW ID 101 11 APIs (11 Funktionen, 0 Typen) #include "Mcu.h"

OCU Driver (Ocu)

AUTOSAR Classic I/O Drivers-Modul OCU Driver (Ocu, Spezifikation: AUTOSAR_CP_SWS_OCUDriver.pdf, AUTOSAR_SWS_OCUDriver.pdf).

BSW ID 125 13 APIs (13 Funktionen, 0 Typen) #include "Ocu.h"

Port Driver (Port)

AUTOSAR Classic I/O Drivers-Modul Port Driver (Port, Spezifikation: AUTOSAR_CP_SWS_PortDriver.pdf, AUTOSAR_SWS_PortDriver.pdf, AUTOSAR_SWS_Port_Driver.pdf).

BSW ID 124 5 APIs (5 Funktionen, 0 Typen) #include "Port.h"

PWM Driver (Pwm)

Generates pulse-width-modulated signals with configurable duty cycle and period.

BSW ID 121 24 APIs (16 Funktionen, 8 Typen) #include "Pwm.h"

SPI Handler Driver (Spi)

AUTOSAR Classic Communication Drivers-Modul SPI Handler Driver (Spi, Spezifikation: AUTOSAR_CP_SWS_SPIHandlerDriver.pdf, AUTOSAR_SWS_SPIHandlerDriver.pdf, AUTOSAR_SWS_SPI_HandlerDriver.pdf).

BSW ID 83 15 APIs (15 Funktionen, 0 Typen) #include "Spi.h"

Watchdog Driver (Wdg)

Hardware watchdog timer servicing and mode configuration.

BSW ID 102 5 APIs (4 Funktionen, 1 Typen) #include "Wdg.h"

Watchdog Interface (WdgIf)

AUTOSAR Classic Onboard Device Abstraction-Modul Watchdog Interface (WdgIf, Spezifikation: AUTOSAR_CP_SWS_WatchdogInterface.pdf, AUTOSAR_SWS_WatchdogInterface.pdf).

BSW ID 43 3 APIs (3 Funktionen, 0 Typen) #include "WdgIf.h"

Additional MCAL Modules (Catalog)

Dio, Port und Spi gehören zum MCAL-Cluster, haben aber noch keine Modulseite (die festen 44 Modul-Records enthalten sie nicht). Die Tabellen sind die API-Kataloge aus den SWS-Definitionen von R23-11. Die Modulseiten selbst erzeugt die Modul-Registry; bis dahin steht der Katalog direkt auf dieser Seite.

DIO Driver (Dio)

BSW ID 120 #include "Dio.h" 9 API functions

Service	Syntax	SWS
`Dio_ReadChannel`	`Dio_LevelType Dio_ReadChannel(Dio_ChannelType ChannelId);`	`SWS_Dio_00133`
`Dio_WriteChannel`	`void Dio_WriteChannel(Dio_ChannelType ChannelId, Dio_LevelType Level);`	`SWS_Dio_00134`
`Dio_ReadPort`	`Dio_PortLevelType Dio_ReadPort(Dio_PortType PortId);`	`SWS_Dio_00135`
`Dio_WritePort`	`void Dio_WritePort(Dio_PortType PortId, Dio_PortLevelType Level);`	`SWS_Dio_00136`
`Dio_ReadChannelGroup`	`Dio_PortLevelType Dio_ReadChannelGroup(const Dio_ChannelGroupType* ChannelGroupIdPtr);`	`SWS_Dio_00137`
`Dio_WriteChannelGroup`	`void Dio_WriteChannelGroup(const Dio_ChannelGroupType* ChannelGroupIdPtr, Dio_PortLevelType Level);`	`SWS_Dio_00138`
`Dio_GetVersionInfo`	`void Dio_GetVersionInfo(Std_VersionInfoType* VersionInfo);`	`SWS_Dio_00139`
`Dio_FlipChannel`	`Dio_LevelType Dio_FlipChannel(Dio_ChannelType ChannelId);`	`SWS_Dio_00190`
`Dio_MaskedWritePort`	`void Dio_MaskedWritePort(Dio_PortType PortId, Dio_PortLevelType Level, Dio_PortLevelType Mask);`	`SWS_Dio_00300`

Port Driver (Port)

BSW ID 124 #include "Port.h" 5 API functions

Service	Syntax	SWS
`Port_Init`	`void Port_Init(const Port_ConfigType* ConfigPtr);`	`SWS_Port_00140`
`Port_SetPinDirection`	`void Port_SetPinDirection(Port_PinType Pin, Port_PinDirectionType Direction);`	`SWS_Port_00141`
`Port_RefreshPortDirection`	`void Port_RefreshPortDirection(void);`	`SWS_Port_00142`
`Port_GetVersionInfo`	`void Port_GetVersionInfo(Std_VersionInfoType* versioninfo);`	`SWS_Port_00143`
`Port_SetPinMode`	`void Port_SetPinMode(Port_PinType Pin, Port_PinModeType Mode);`	`SWS_Port_00145`

SPI Handler/Driver (Spi)

BSW ID 83 #include "Spi.h" 15 API functions

Service	Syntax	SWS
`Spi_Init`	`void Spi_Init(const Spi_ConfigType* ConfigPtr);`	`SWS_Spi_00175`
`Spi_DeInit`	`Std_ReturnType Spi_DeInit(void);`	`SWS_Spi_00176`
`Spi_WriteIB`	`Std_ReturnType Spi_WriteIB(Spi_ChannelType Channel, const Spi_DataBufferType* DataBufferPtr);`	`SWS_Spi_00177`
`Spi_AsyncTransmit`	`Std_ReturnType Spi_AsyncTransmit(Spi_SequenceType Sequence);`	`SWS_Spi_00178`
`Spi_ReadIB`	`Std_ReturnType Spi_ReadIB(Spi_ChannelType Channel, Spi_DataBufferType* DataBufferPointer);`	`SWS_Spi_00179`
`Spi_SetupEB`	`Std_ReturnType Spi_SetupEB(Spi_ChannelType Channel, const Spi_DataBufferType* SrcDataBufferPtr, Spi_DataBufferType* DesDataBufferPtr, Spi_NumberOfDataType Length);`	`SWS_Spi_00180`
`Spi_GetStatus`	`Spi_StatusType Spi_GetStatus(void);`	`SWS_Spi_00181`
`Spi_GetJobResult`	`Spi_JobResultType Spi_GetJobResult(Spi_JobType Job);`	`SWS_Spi_00182`
`Spi_GetSequenceResult`	`Spi_SeqResultType Spi_GetSequenceResult(Spi_SequenceType Sequence);`	`SWS_Spi_00183`
`Spi_GetVersionInfo`	`void Spi_GetVersionInfo(Std_VersionInfoType* versioninfo);`	`SWS_Spi_00184`
`Spi_SyncTransmit`	`Std_ReturnType Spi_SyncTransmit(Spi_SequenceType Sequence);`	`SWS_Spi_00185`
`Spi_GetHWUnitStatus`	`Spi_StatusType Spi_GetHWUnitStatus(Spi_HWUnitType HWUnit);`	`SWS_Spi_00186`
`Spi_Cancel`	`void Spi_Cancel(Spi_SequenceType Sequence);`	`SWS_Spi_00187`
`Spi_SetAsyncMode`	`Std_ReturnType Spi_SetAsyncMode(Spi_AsyncModeType Mode);`	`SWS_Spi_00188`
`Spi_MainFunction_Handling`	`void Spi_MainFunction_Handling(void);`	`SWS_Spi_00189`

AUTOSAR Classic Microcontroller Abstraction (MCAL)

Topic map

Detail view

Cluster guideAI-GENERATED🔍

System Architecture & Role of the Module Cluster

Interplay & Interaction Paths Between the Modules

Synchronization, reentrancy and task contexts

Typical lifecycles and operating modes

Error Handling, DET Tracing, and Degradation

Module im Cluster

ADC Driver (Adc)

Core Test (CorTst)

DIO Driver (Dio)

GPT Driver (Gpt)

I2C Driver (I2c)

ICU Driver (Icu)

I/O Hardware Abstraction (IoHwAb)

MCU Driver (Mcu)

OCU Driver (Ocu)

Port Driver (Port)

PWM Driver (Pwm)

SPI Handler Driver (Spi)

Watchdog Driver (Wdg)

Watchdog Interface (WdgIf)

Additional MCAL Modules (Catalog)

DIO Driver (Dio)

Port Driver (Port)

SPI Handler/Driver (Spi)

Cluster guideAI-GENERATED