HAL ADF Use Cases ¶

Global ADF initialization ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF participant "HAL DMA" as DMA participant "HAL RCC" as RCC participant "HAL GPIO" as GPIO participant "System Driver" as SYSTEM == ADF HAL initialization == App -> ADF : HAL_ADF_Init() Note over ADF : Initialize ADF instance on handle\nGlobal state = INIT alt#grey #lightgrey If USE_HAL_ADF_CLK_ENABLE_MODEL > HAL_CLK_ENABLE_NO ADF->RCC : Enable the ADF clock RCC-->ADF end App <-- ADF : HAL_OK == ADF system initialization == Note over App : ADF system initialization can be called before\nADF HAL initialization App->SYSTEM : Configure and enable ADF kernel clock SYSTEM --> App alt#grey #lightgrey If USE_HAL_ADF_CLK_ENABLE_MODEL == HAL_CLK_ENABLE_NO App->RCC : Enable the ADF clock RCC --> App end alt#grey #lightgrey If USE_HAL_ADF_DMA == 1 App->DMA : Initialization of DMA DMA-->App App->ADF : HAL_ADF_SetDMA() ADF-->App end alt#grey #lightgrey If GPIOs needed App->GPIO : Initialization of GPIOs GPIO-->App end @enduml$

Called functions:

Global ADF de-initialization ¶

Called functions:

HAL_ADF_DeInit()

Global ADF configuration ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF == ADF global configuration == App -> ADF : HAL_ADF_SetConfig() Note over ADF : Configure processing clock divider\nGlobal state = IDLE App <-- ADF :HAL_OK == Advanced ADF global configuration == alt#grey #lightgrey Output clock feature App -> ADF : HAL_ADF_SetConfigOutputClock() Note over ADF : Configure output clock divider and pins App <-- ADF :HAL_OK App -> ADF : HAL_ADF_EnableOutputClock() App <-- ADF :HAL_OK end alt#grey #lightgrey Output clock trigger feature App -> ADF : HAL_ADF_SetConfigOutputClockTrigger() Note over ADF : Configure output clock trigger source and edge App <-- ADF :HAL_OK App -> ADF : HAL_ADF_EnableOutputClockTrigger() App <-- ADF :HAL_OK end @enduml$

Called functions:

Global ADF start/stop ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF == ADF global start == App -> ADF : HAL_ADF_Start() Note over ADF : Enable clock generator\nGlobal state = ACTIVE App <-- ADF :HAL_OK == ADF global stop == App -> ADF : HAL_ADF_Stop() Note over ADF : Disable clock generator\nGlobal state = IDLE App <-- ADF :HAL_OK @enduml$

Called functions:

ADF acquisition configuration ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF alt#grey Not needed if digital filter source is ADC interface == Serial interface configuration == App -> ADF : HAL_ADF_SITF_SetConfig(SITFi) Note over ADF : Configure clock source, mode and threshold\nSITFi state = IDLE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_SITF_Start(SITFi) Note over ADF : Enable serial interface i\nSITFi state = ACTIVE App <-- ADF :HAL_OK == Bitstream matrix configuration == App -> ADF : HAL_ADF_BSMX_SetConfig(BSMXj, SITFi) Note over ADF : Configure bitstream selection (serial interface and edge) App <-- ADF :HAL_OK end == Digital filter configuration == App -> ADF : HAL_ADF_DFLT_SetConfig(DFTLj) Note over ADF : Configure data source, CIC mode, decimation ratio, gain, acquisition mode and trigger\nDFLTj state = IDLE App <-- ADF :HAL_OK alt#grey #lightgrey Advanced digital filter configuration App -> ADF : HAL_ADF_DFLT_SetSamplesDelay(DFTLj) App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_SetGain(DFTLj) App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_SetFifoThreshold(DFTLj) App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_SetDiscardSamples(DFTLj) App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_EnableReshapeFilter(DFTLj) App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_EnableHighPassFilter(DFTLj) App <-- ADF :HAL_OK end alt#grey If SAD usage == Sound activity detector configuration == App -> ADF : HAL_ADF_SAD_SetConfig(SADi) Note over ADF : Configure mode, memory transfer, trigger event and minimum ambient noise\nSADi state = IDLE App <-- ADF :HAL_OK alt#grey #lightgrey Advanced sound activity detector configuration App -> ADF : HAL_ADF_SAD_SetFrameSize(SADi) App <-- ADF :HAL_OK App -> ADF : HAL_ADF_SAD_SetLearningFrames(SADi) App <-- ADF :HAL_OK App -> ADF : HAL_ADF_SAD_SetSignalToNoiseThreshold(SADi) App <-- ADF :HAL_OK App -> ADF : HAL_ADF_SAD_SetAmbientNoiseSlope(SADi) App <-- ADF :HAL_OK App -> ADF : HAL_ADF_SAD_SetHangoverTimeWindow(SADi) App <-- ADF :HAL_OK App -> ADF : HAL_ADF_SAD_EnableHysteresis(SADi) App <-- ADF :HAL_OK end end @enduml$

Called functions:

ADF acquisition in asynchronous continuous mode ¶

Polling mode without SAD usage ¶

Called functions:

Polling mode with SAD usage ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF == Asynchronous continuous acquisition in polling mode with SAD usage == App -> ADF : HAL_ADF_SAD_Start(SADj) Note over ADF : Enable sound activity detector\nSADj state = ACTIVE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_StartAcq(DFTLj) Note over ADF : Enable digital filter\nDFLTj state = ACTIVE App <-- ADF :HAL_OK loop if memory transfer allowed App -> ADF : HAL_ADF_DFLT_PollForAcq(DFTLj) Note over ADF : Wait available acquisition App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_GetAcqValue(DFTLj) App <-- ADF :Acquisition value end loop App -> ADF : HAL_ADF_SAD_IsDetected(SADj) App <-- ADF :HAL_ADF_SOUND_ACTIVITY_NOT_DETECTED\nor HAL_ADF_SOUND_ACTIVITY_DETECTED end loop App -> ADF : HAL_ADF_SAD_PollForSoundLevel(SADj) Note over ADF : Wait available sound level App <-- ADF :HAL_OK App -> ADF : HAL_ADF_SAD_GetSoundAndAmbientNoiseLevels(DFTLj) App <-- ADF :Sound level and ambient noise level end App -> ADF : HAL_ADF_DFLT_StopAcq(DFTLj) Note over ADF : Disable digital filter\nDFLTj state = IDLE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_SAD_Stop(SADj) Note over ADF : Disable sound activity detector\nSADj state = IDLE App <-- ADF :HAL_OK @enduml$

Called functions:

Interrupt mode without SAD usage ¶

Called functions:

Interrupt mode with SAD usage ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF participant "NVIC" as NVIC == Asynchronous continuous acquisition in interrupt mode with SAD usage == App -> ADF : HAL_ADF_SAD_Start_IT(SADj) Note over ADF : Enable SAD interrupts and sound activity detector\nSADj state = ACTIVE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_StartAcq_IT(DFTLj) Note over ADF : Enable DFLT interrupts and digital filter\nDFLTj state = ACTIVE App <-- ADF :HAL_OK loop if memory transfer allowed Note over NVIC : FIFO threshold IT occurrence NVIC -> ADF : HAL_ADF_IRQHandler(DFTLj) ADF -> App : HAL_ADF_DFLT_AcqCpltCallback(DFLTj) App -> ADF : HAL_ADF_DFLT_GetAcqValue(DFTLj) App <-- ADF :Acquisition value ADF <-- App NVIC <-- ADF end loop Note over NVIC : Sound level ready IT occurrence NVIC -> ADF : HAL_ADF_IRQHandler(SADj) ADF -> App : HAL_ADF_SAD_SoundLevelCallback(SADj) App -> ADF : HAL_ADF_SAD_GetSoundAndAmbientNoiseLevels(DFTLj) App <-- ADF :Sound level and ambient noise level ADF <-- App NVIC <-- ADF end loop Note over NVIC : Sound activity IT occurrence NVIC -> ADF : HAL_ADF_IRQHandler(SADj) ADF -> App : HAL_ADF_SAD_SoundActivityCallback(SADj) ADF <-- App NVIC <-- ADF end App -> ADF : HAL_ADF_DFLT_StopAcq_IT(DFTLj) Note over ADF : Disable digital filter and interrupts\nDFLTj state = IDLE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_SAD_Stop_IT(SADj) Note over ADF : Disable sound activity detector and interrupts\nSADj state = IDLE App <-- ADF :HAL_OK @enduml$

Called functions:

DMA mode without SAD usage ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF participant "DMA" as DMA == Asynchronous continuous acquisition in DMA mode without SAD usage == loop If not circular DMA App -> ADF : HAL_ADF_DFLT_StartAcq_DMA(DFTLj) Note over ADF : Enable DMA and interrupts ADF -> DMA : HAL_DMA_StartPeriphXfer_IT_Opt() ADF <-- DMA : HAL_OK Note over ADF : Enable digital filter\nDFLTj state = ACTIVE App <-- ADF : HAL_OK loop If circular DMA Note over DMA : Transfer half complete IT occurrence DMA -> ADF : ADF_DMA_HalfCpltCallback() Note over ADF : Retrieve DFLT index from DMA handle ADF -> App : HAL_ADF_DFLT_AcqHalfCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF Note over DMA : Transfer complete IT occurrence DMA -> ADF : ADF_DMA_CpltCallback() Note over ADF : Retrieve DFLT index from DMA handle ADF -> App : HAL_ADF_DFLT_AcqCpltCallback(DFLTj) Note over App : User implementation ADF <-- App alt#grey If not circular DMA Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE end DMA <-- ADF end end App -> ADF : HAL_ADF_DFLT_StopAcq_DMA(DFTLj) ADF -> DMA : HAL_DMA_Abort_IT() alt#grey If DMA transfer in progress ADF <-- DMA : HAL_OK App <-- ADF :HAL_OK DMA -> ADF : ADF_DMA_AbortCallback() Note over ADF : Retrieve DFLT index from DMA handle\nDisable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF else If no DMA transfer in progress ADF <-- DMA : HAL_ERROR Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App App <-- ADF :HAL_OK end @enduml$

Called functions:

DMA mode with SAD usage ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF participant "DMA" as DMA == Asynchronous continuous acquisition in DMA mode with SAD usage == loop If not circular DMA App -> ADF : HAL_ADF_SAD_Start_IT(SADj) Note over ADF : Enable SAD interrupts and sound activity detector\nSADj state = ACTIVE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_StartAcq_DMA(DFTLj) Note over ADF : Enable DMA and interrupts ADF -> DMA : HAL_DMA_StartPeriphXfer_IT_Opt() ADF <-- DMA : HAL_OK Note over ADF : Enable digital filter\nDFLTj state = ACTIVE App <-- ADF : HAL_OK loop If circular DMA Note over DMA : Transfer half complete IT occurrence DMA -> ADF : ADF_DMA_HalfCpltCallback() Note over ADF : Retrieve DFLT index from DMA handle ADF -> App : HAL_ADF_DFLT_AcqHalfCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF Note over DMA : Transfer complete IT occurrence DMA -> ADF : ADF_DMA_CpltCallback() Note over ADF : Retrieve DFLT index from DMA handle ADF -> App : HAL_ADF_DFLT_AcqCpltCallback(DFLTj) Note over App : User implementation ADF <-- App alt#grey If not circular DMA Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE end DMA <-- ADF end alt#grey If not circular DMA App -> ADF : HAL_ADF_SAD_Stop_IT(SADj) Note over ADF : Disable sound activity detector and interrupts\nSADj state = IDLE App <-- ADF :HAL_OK end end App -> ADF : HAL_ADF_DFLT_StopAcq_DMA(DFTLj) ADF -> DMA : HAL_DMA_Abort_IT() alt#grey If DMA transfer in progress ADF <-- DMA : HAL_OK App <-- ADF :HAL_OK DMA -> ADF : ADF_DMA_AbortCallback() Note over ADF : Retrieve DFLT index from DMA handle\nDisable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF else If no DMA transfer in progress ADF <-- DMA : HAL_ERROR Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App App <-- ADF :HAL_OK end App -> ADF : HAL_ADF_SAD_Stop_IT(SADj) Note over ADF : Disable sound activity detector and interrupts\nSADj state = IDLE App <-- ADF :HAL_OK @enduml$

Called functions:

ADF acquisition in asynchronous single shot mode ¶

Polling mode ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF == Asynchronous single shot acquisition in polling mode == loop App -> ADF : HAL_ADF_DFLT_StartAcq(DFTLj) Note over ADF : Enable digital filter\nDFLTj state = ACTIVE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_PollForAcq(DFTLj) Note over ADF : Wait available acquisition\nDisable digital filter\nDFLTj state = IDLE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_GetAcqValue(DFTLj) App <-- ADF :Acquisition value end App -> ADF : HAL_ADF_DFLT_StopAcq(DFTLj) Note over ADF : Disable digital filter\nDFLTj state = IDLE App <-- ADF :HAL_OK @enduml$

Called functions:

Interrupt mode ¶

Called functions:

DMA mode ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF participant "DMA" as DMA == Asynchronous single shot acquisition in DMA mode == loop App -> ADF : HAL_ADF_DFLT_StartAcq_DMA(DFTLj) Note over ADF : Enable DMA and interrupts ADF -> DMA : HAL_DMA_StartPeriphXfer_IT_Opt() ADF <-- DMA : HAL_OK Note over ADF : Enable digital filter\nDFLTj state = ACTIVE App <-- ADF : HAL_OK Note over DMA : Transfer complete IT occurrence DMA -> ADF : ADF_DMA_CpltCallback() Note over ADF : Retrieve DFLT index from DMA handle,\ndisable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF end App -> ADF : HAL_ADF_DFLT_StopAcq_DMA(DFTLj) ADF -> DMA : HAL_DMA_Abort_IT() alt#grey If DMA transfer in progress ADF <-- DMA : HAL_OK App <-- ADF :HAL_OK DMA -> ADF : ADF_DMA_AbortCallback() Note over ADF : Retrieve DFLT index from DMA handle\nDisable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF else If no DMA transfer in progress ADF <-- DMA : HAL_ERROR Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App App <-- ADF :HAL_OK end @enduml$

Called functions:

ADF acquisition in synchronous continuous mode ¶

Polling mode without SAD usage ¶

Called functions:

Polling mode with SAD usage ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF == Synchronous continuous acquisition in polling mode with SAD usage == App -> ADF : HAL_ADF_SAD_Start(SADj) Note over ADF : Enable sound activity detector\nSADj state = ACTIVE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_StartAcq(DFTLj) Note over ADF : Enable digital filter\nDFLTj state = ACTIVE App <-- ADF :HAL_OK alt#grey If trigger is TRGO App -> ADF : HAL_ADF_EnableTriggerOutput() Note over ADF : Enable trigger output signal App <-- ADF :HAL_OK else If trigger isn't TRGO ADF <-? :Trigger occurence end loop if memory transfer allowed App -> ADF : HAL_ADF_DFLT_PollForAcq(DFTLj) Note over ADF : Wait available acquisition App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_GetAcqValue(DFTLj) App <-- ADF :Acquisition value end loop App -> ADF : HAL_ADF_SAD_IsDetected(SADj) App <-- ADF :HAL_ADF_SOUND_ACTIVITY_NOT_DETECTED\nor HAL_ADF_SOUND_ACTIVITY_DETECTED end loop App -> ADF : HAL_ADF_SAD_PollForSoundLevel(SADj) Note over ADF : Wait available sound level App <-- ADF :HAL_OK App -> ADF : HAL_ADF_SAD_GetSoundAndAmbientNoiseLevels(DFTLj) App <-- ADF :Sound level and ambient noise level end App -> ADF : HAL_ADF_DFLT_StopAcq(DFTLj) Note over ADF : Disable digital filter\nDFLTj state = IDLE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_SAD_Stop(SADj) Note over ADF : Disable sound activity detector\nSADj state = IDLE App <-- ADF :HAL_OK @enduml$

Called functions:

Interrupt mode without SAD usage ¶

Called functions:

Interrupt mode with SAD usage ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF participant "NVIC" as NVIC == Synchronous continuous acquisition in interrupt mode with SAD usage == App -> ADF : HAL_ADF_SAD_Start_IT(SADj) Note over ADF : Enable SAD interrupts and sound activity detector\nSADj state = ACTIVE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_StartAcq_IT(DFTLj) Note over ADF : Enable interrupts and digital filter\nDFLTj state = ACTIVE App <-- ADF :HAL_OK alt#grey If trigger is TRGO App -> ADF : HAL_ADF_EnableTriggerOutput() Note over ADF : Enable trigger output signal App <-- ADF :HAL_OK else If trigger isn't TRGO ADF <-? :Trigger occurence end loop if memory transfer allowed Note over NVIC : FIFO threshold IT occurrence NVIC -> ADF : HAL_ADF_IRQHandler(DFTLj) ADF -> App : HAL_ADF_DFLT_AcqCpltCallback(DFLTj) App -> ADF : HAL_ADF_DFLT_GetAcqValue(DFTLj) App <-- ADF :Acquisition value ADF <-- App NVIC <-- ADF end loop Note over NVIC : Sound level ready IT occurrence NVIC -> ADF : HAL_ADF_IRQHandler(SADj) ADF -> App : HAL_ADF_SAD_SoundLevelCallback(SADj) App -> ADF : HAL_ADF_SAD_GetSoundAndAmbientNoiseLevels(DFTLj) App <-- ADF :Sound level and ambient noise level ADF <-- App NVIC <-- ADF end loop Note over NVIC : Sound activity IT occurrence NVIC -> ADF : HAL_ADF_IRQHandler(SADj) ADF -> App : HAL_ADF_SAD_SoundActivityCallback(SADj) ADF <-- App NVIC <-- ADF end App -> ADF : HAL_ADF_DFLT_StopAcq_IT(DFTLj) Note over ADF : Disable digital filter and interrupts\nDFLTj state = IDLE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_SAD_Stop_IT(SADj) Note over ADF : Disable sound activity detector and interrupts\nSADj state = IDLE App <-- ADF :HAL_OK @enduml$

Called functions:

DMA mode without SAD usage ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF participant "DMA" as DMA == Synchronous continuous acquisition in DMA mode without SAD usage == loop If not circular DMA App -> ADF : HAL_ADF_DFLT_StartAcq_DMA(DFTLj) Note over ADF : Enable DMA and interrupts ADF -> DMA : HAL_DMA_StartPeriphXfer_IT_Opt() ADF <-- DMA : HAL_OK Note over ADF : Enable digital filter\nDFLTj state = ACTIVE App <-- ADF : HAL_OK alt#grey Only at first loop cycle If DMA is not circular alt#grey If trigger is TRGO App -> ADF : HAL_ADF_EnableTriggerOutput() Note over ADF : Enable trigger output signal App <-- ADF :HAL_OK else If trigger isn't TRGO ADF <-? :Trigger occurence end end loop If circular DMA Note over DMA : Transfer half complete IT occurrence DMA -> ADF : ADF_DMA_HalfCpltCallback() Note over ADF : Retrieve DFLT index from DMA handle ADF -> App : HAL_ADF_DFLT_AcqHalfCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF Note over DMA : Transfer complete IT occurrence DMA -> ADF : ADF_DMA_CpltCallback() Note over ADF : Retrieve DFLT index from DMA handle ADF -> App : HAL_ADF_DFLT_AcqCpltCallback(DFLTj) Note over App : User implementation ADF <-- App alt#grey If not circular DMA Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE end DMA <-- ADF end end App -> ADF : HAL_ADF_DFLT_StopAcq_DMA(DFTLj) ADF -> DMA : HAL_DMA_Abort_IT() alt#grey If DMA transfer in progress ADF <-- DMA : HAL_OK App <-- ADF :HAL_OK DMA -> ADF : ADF_DMA_AbortCallback() Note over ADF : Retrieve DFLT index from DMA handle\nDisable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF else If no DMA transfer in progress ADF <-- DMA : HAL_ERROR Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App App <-- ADF :HAL_OK end @enduml$

Called functions:

DMA mode with SAD usage ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF participant "DMA" as DMA == Synchronous continuous acquisition in DMA mode with SAD usage == loop If not circular DMA App -> ADF : HAL_ADF_SAD_Start_IT(SADj) Note over ADF : Enable SAD interrupts and sound activity detector\nSADj state = ACTIVE App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_StartAcq_DMA(DFTLj) Note over ADF : Enable DMA and interrupts ADF -> DMA : HAL_DMA_StartPeriphXfer_IT_Opt() ADF <-- DMA : HAL_OK Note over ADF : Enable digital filter\nDFLTj state = ACTIVE App <-- ADF : HAL_OK alt#grey Only at first loop cycle If DMA is not circular alt#grey If trigger is TRGO App -> ADF : HAL_ADF_EnableTriggerOutput() Note over ADF : Enable trigger output signal App <-- ADF :HAL_OK else If trigger isn't TRGO ADF <-? :Trigger occurence end end loop If circular DMA Note over DMA : Transfer half complete IT occurrence DMA -> ADF : ADF_DMA_HalfCpltCallback() Note over ADF : Retrieve DFLT index from DMA handle ADF -> App : HAL_ADF_DFLT_AcqHalfCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF Note over DMA : Transfer complete IT occurrence DMA -> ADF : ADF_DMA_CpltCallback() Note over ADF : Retrieve DFLT index from DMA handle ADF -> App : HAL_ADF_DFLT_AcqCpltCallback(DFLTj) Note over App : User implementation ADF <-- App alt#grey If not circular DMA Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE end DMA <-- ADF end alt#grey If not circular DMA App -> ADF : HAL_ADF_SAD_Stop_IT(SADj) Note over ADF : Disable sound activity detector and interrupts\nSADj state = IDLE App <-- ADF :HAL_OK end end App -> ADF : HAL_ADF_DFLT_StopAcq_DMA(DFTLj) ADF -> DMA : HAL_DMA_Abort_IT() alt#grey If DMA transfer in progress ADF <-- DMA : HAL_OK App <-- ADF :HAL_OK DMA -> ADF : ADF_DMA_AbortCallback() Note over ADF : Retrieve DFLT index from DMA handle\nDisable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF else If no DMA transfer in progress ADF <-- DMA : HAL_ERROR Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App App <-- ADF :HAL_OK end App -> ADF : HAL_ADF_SAD_Stop_IT(SADj) Note over ADF : Disable sound activity detector and interrupts\nSADj state = IDLE App <-- ADF :HAL_OK @enduml$

Called functions:

ADF acquisition in synchronous single shot mode ¶

Polling mode ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF == Synchronous single shot acquisition in polling mode == App -> ADF : HAL_ADF_DFLT_StartAcq(DFTLj) Note over ADF : Enable digital filter\nDFLTj state = ACTIVE App <-- ADF :HAL_OK loop alt#grey If trigger is TRGO App -> ADF : HAL_ADF_EnableTriggerOutput() Note over ADF : Enable trigger output signal App <-- ADF :HAL_OK else If trigger isn't TRGO ADF <-? :Trigger occurence end App -> ADF : HAL_ADF_DFLT_PollForAcq(DFTLj) Note over ADF : Wait available acquisition App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_GetAcqValue(DFTLj) App <-- ADF :Acquisition value end App -> ADF : HAL_ADF_DFLT_StopAcq(DFTLj) Note over ADF : Disable digital filter\nDFLTj state = IDLE App <-- ADF :HAL_OK @enduml$

Called functions:

Interrupt mode ¶

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DMA mode ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF participant "DMA" as DMA == Synchronous single shot acquisition in DMA mode == loop If not circular DMA App -> ADF : HAL_ADF_DFLT_StartAcq_DMA(DFTLj) Note over ADF : Enable DMA and interrupts ADF -> DMA : HAL_DMA_StartPeriphXfer_IT_Opt() ADF <-- DMA : HAL_OK Note over ADF : Enable digital filter\nDFLTj state = ACTIVE App <-- ADF : HAL_OK loop If circular DMA loop Repeat to fill DMA buffer alt#grey If trigger is TRGO App -> ADF : HAL_ADF_EnableTriggerOutput() Note over ADF : Enable trigger output signal App <-- ADF :HAL_OK else If trigger isn't TRGO ADF <-? :Trigger occurence end end Note over DMA : Transfer half complete IT occurrence DMA -> ADF : ADF_DMA_HalfCpltCallback() Note over ADF : Retrieve DFLT index from DMA handle ADF -> App : HAL_ADF_DFLT_AcqHalfCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF Note over DMA : Transfer complete IT occurrence DMA -> ADF : ADF_DMA_CpltCallback() Note over ADF : Retrieve DFLT index from DMA handle ADF -> App : HAL_ADF_DFLT_AcqCpltCallback(DFLTj) Note over App : User implementation ADF <-- App alt#grey If not circular DMA Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE end DMA <-- ADF end end App -> ADF : HAL_ADF_DFLT_StopAcq_DMA(DFTLj) ADF -> DMA : HAL_DMA_Abort_IT() alt#grey If DMA transfer in progress ADF <-- DMA : HAL_OK App <-- ADF :HAL_OK DMA -> ADF : ADF_DMA_AbortCallback() Note over ADF : Retrieve DFLT index from DMA handle\nDisable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF else If no DMA transfer in progress ADF <-- DMA : HAL_ERROR Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App App <-- ADF :HAL_OK end @enduml$

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ADF acquisition in window continuous mode ¶

Polling mode ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF == Window continuous acquisition in polling mode == App -> ADF : HAL_ADF_DFLT_StartAcq(DFTLj) Note over ADF : Enable digital filter\nDFLTj state = ACTIVE App <-- ADF :HAL_OK loop ADF <-? :Start trigger occurence loop App -> ADF : HAL_ADF_DFLT_PollForAcq(DFTLj) Note over ADF : Wait available acquisition App <-- ADF :HAL_OK App -> ADF : HAL_ADF_DFLT_GetAcqValue(DFTLj) App <-- ADF :Acquisition value end ADF <-? :Stop trigger occurence end App -> ADF : HAL_ADF_DFLT_StopAcq(DFTLj) Note over ADF : Disable digital filter\nDFLTj state = IDLE App <-- ADF :HAL_OK @enduml$

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Interrupt mode ¶

Called functions:

DMA mode ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF participant "DMA" as DMA == Window continuous acquisition in DMA mode == loop If not circular DMA App -> ADF : HAL_ADF_DFLT_StartAcq_DMA(DFTLj) Note over ADF : Enable DMA and interrupts ADF -> DMA : HAL_DMA_StartPeriphXfer_IT_Opt() ADF <-- DMA : HAL_OK Note over ADF : Enable digital filter\nDFLTj state = ACTIVE App <-- ADF : HAL_OK loop If circular DMA or if DMA transfer not completed ADF <-? :Start trigger occurence loop If circular DMA Note over DMA : Transfer half complete IT occurrence DMA -> ADF : ADF_DMA_HalfCpltCallback() Note over ADF : Retrieve DFLT index from DMA handle ADF -> App : HAL_ADF_DFLT_AcqHalfCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF Note over DMA : Transfer complete IT occurrence DMA -> ADF : ADF_DMA_CpltCallback() Note over ADF : Retrieve DFLT index from DMA handle ADF -> App : HAL_ADF_DFLT_AcqCpltCallback(DFLTj) Note over App : User implementation ADF <-- App alt#grey If not circular DMA Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE end DMA <-- ADF end ADF <-? :Stop trigger occurence end end App -> ADF : HAL_ADF_DFLT_StopAcq_DMA(DFTLj) ADF -> DMA : HAL_DMA_Abort_IT() alt#grey If DMA transfer in progress ADF <-- DMA : HAL_OK App <-- ADF :HAL_OK DMA -> ADF : ADF_DMA_AbortCallback() Note over ADF : Retrieve DFLT index from DMA handle\nDisable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF else If no DMA transfer in progress ADF <-- DMA : HAL_ERROR Note over ADF : Disable digital filter, DMA and interrupts\nDFLTj state = IDLE ADF -> App : HAL_ADF_DFLT_AcqStopCpltCallback(DFLTj) Note over App : User implementation ADF <-- App App <-- ADF :HAL_OK end @enduml$

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ADF error handling during acquisition ¶

Polling mode ¶

Called functions:

Interrupt mode ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF participant "NVIC" as NVIC == Error handling during acquisition in interrupt mode == Note over NVIC : data overflow IT occurrence\nand/or saturation IT occurrence\nand/or reshape filter overrun IT occurrence NVIC -> ADF : HAL_ADF_IRQHandler(DFTLj) alt If USE_HAL_ADF_GET_LAST_ERRORS = 1 Note over ADF : last_error_codes[j] |= DFLT_ACQ_OVERFLOW\nand/or last_error_codes[j] |= DFLT_SATURATION\nand/or last_error_codes[j] |= DFLT_RSF_OVERRUN end Note over ADF : Clear IT flag(s) ADF -> App : HAL_ADF_ErrorCallback(DFLTj) Note over App : User implementation ADF <-- App NVIC <-- ADF alt If USE_HAL_ADF_GET_LAST_ERRORS = 1 App -> ADF : HAL_ADF_GetLastErrorCodes(DFTLj) App <-- ADF :last_error_codes[j] end @enduml$

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DMA mode ¶

$@startuml skinparam DefaultTextAlignment center participant App as "User application" participant "HAL ADF" as ADF participant "NVIC" as NVIC participant "DMA" as DMA == Error handling during acquisition in DMA mode == alt ADF error Note over NVIC : data overflow IT occurrence\nand/or saturation IT occurrence\nand/or reshape filter overrun IT occurrence NVIC -> ADF : HAL_ADF_IRQHandler(DFTLj) alt If USE_HAL_ADF_GET_LAST_ERRORS = 1 Note over ADF : last_error_codes[j] |= DFLT_ACQ_OVERFLOW\nand/or last_error_codes[j] |= DFLT_SATURATION\nand/or last_error_codes[j] |= DFLT_RSF_OVERRUN end Note over ADF : Clear IT flag(s) ADF -> App : HAL_ADF_ErrorCallback(DFLTj) Note over App : User implementation ADF <-- App NVIC <-- ADF end alt DMA error Note over DMA : DMA error occurrence DMA -> ADF : ADF_DMA_ErrorCallback() Note over ADF : Retrieve DFLT index from DMA handle alt If USE_HAL_ADF_GET_LAST_ERRORS = 1 Note over ADF : last_error_codes[j] |= DMA end ADF -> App : HAL_ADF_ErrorCallback(DFLTj) Note over App : User implementation ADF <-- App DMA <-- ADF end alt If USE_HAL_ADF_GET_LAST_ERRORS = 1 App -> ADF : HAL_ADF_GetLastErrorCodes(DFTLj) App <-- ADF :last_error_codes[j] end @enduml$

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ADF possible configurations during acquisition ¶

@startuml

skinparam DefaultTextAlignment center

participant App as "User application"
participant "HAL ADF" as ADF

== Possible configurations during acquisition ==
App -> ADF : HAL_ADF_DFLT_SetSamplesDelay(DFTLj)
App <-- ADF :HAL_OK
App -> ADF : HAL_ADF_DFLT_SetGain(DFTLj)
App <-- ADF :HAL_OK

@enduml

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Clock absence detection ¶

Polling mode ¶

Called functions:

HAL_ADF_SITF_IsClockAbsenceDetected()

Interrupt mode ¶

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