HAL SD Use Cases ¶

User application starting a driver ¶

$@startuml hide footbox ' To add a number by line 'autonumber ' Fix order of each column skinparam ParticipantPadding 40 participant "User Application" as part1 participant "Driver SD" as part2 participant "System" as part3 activate part1 group #9898fb Initializes the Flash interface and the Systick part1->part3 : HAL_Init() activate part3 part3 --> part1 deactivate part3 end group #lightblue Configure the system clock part1->part3 : SystemClock_Config() activate part3 part3 --> part1 deactivate part3 end group #lightsalmon Initialize SD card part1->part2 ++ : HAL_SD_Init() note right: 2 instances availables : \n- HAL_SD_CARD_1 \n- HAL_SD_CARD_2 \n SDMMC clock is enabled when USE_SD_CLK_ENABLE_MODEL \n is set to HAL_CLK_ENABLE_PERIPH_ONLY part2 --> part1 part1->part2 : SD HW Initialisation and SD NVIC configuration for SDMMC interrupts part2 --> part1 end group #9898fb Set SD Card configuration part1->part2 : HAL_SD_SetConfig part2 --> part1 end group #lightblue <size:15>Optional</size> : Enable and configure the SD delayblock with the maximum output clock phase part1->part2 : HAL_SD_CalculateDlybMaxClockPhase part2 --> part1 note right: The max output clock phase will be used as parameter \n in HAL_SD_SetConfigDlybDelay function. part1->part2 : HAL_SD_SetConfigDlybDelay part2 --> part1 part1->part2 : HAL_SD_EnableDlyb note right: Enable the SD delay block. part2 --> part1 end group #lightsalmon <size:15>Optional</size> : Enable and configure the SD delayblock \n with an output clock phase chosen by the user part1->part2 : HAL_SD_SetConfigDlybDelay part2 --> part1 note right: The user sets a desired output clock phase. part1->part2 : HAL_SD_EnableDlyb part2 --> part1 end group #lightblue <size:15>Optional</size> : Get SD delayblock configuration part1->part2 : HAL_SD_GetDlybOutputClockPhase note right: Get the SD delay block output clock phase. part2 --> part1 end group #lightsalmon <size:15>Optional</size> : Disable the MMC delayblock peripheral part1->part2 : HAL_SD_DisableDlyb note right: Disable MMC the delay block peripheral. part2 --> part1 end @enduml$

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User application starting a Polling transfer mode ¶

$@startuml hide footbox participant "User Application" as part1 participant "SD Driver" as part2 activate part1 activate part2 group #lightsalmon Initialize SD card part1->part2 : HAL_SD_Init() note right: 2 instances availables : \n- HAL_SD_CARD_1 \n- HAL_SD_CARD_2 part2 --> "part1" end group #9898fb Set SD Card configuration "part1"->part2 : HAL_SD_SetConfig() part2 --> "part1" end group #lightblue I/O Operation process part1->part2 : HAL_SD_Erase() part2 --> "part1" : Erase Completed part1->part2 : HAL_SD_WriteBlocks() part1->part1 : Wait for the Card Transfer status using API HAL_SD_GetCardState() note right: The SD Card status shall be in \n HAL_SD_CARD_TRANSFER part1->part2 : HAL_SD_ReadBlocks() part1->part1 : Wait for the Card Transfer status using API HAL_SD_GetCardState() note right: The SD Card status shall be in \n HAL_SD_CARD_TRANSFER end @enduml$

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User application starting a DMA transfer mode ¶

$@startuml hide footbox participant "User Application" as part1 participant "SD Driver" as part2 participant "ISR" as part3 activate part1 activate part2 group #lightsalmon SD Card initialization part1->part2 : HAL_SD_Init() note right: 2 instances availables : \n- HAL_SD_CARD_1 \n- HAL_SD_CARD_2 part2 --> part1 end group #9898fb SD Card configuration part1->part2 : HAL_SD_SetConfig() part2 --> part1 end group #lightblue I/O Operation process part1->part2 : HAL_SD_Erase() part2 --> part1: Erase completed part1->part2 : HAL_SD_WriteBlocks_DMA() part2 --> part1 part3 -> part2 : HAL_SD_IRQ_HANDLER() part2 -> part1 : Notify the User application with Transfer complete part1->part1 : Wait for the Card Transfer status using API HAL_SD_GetCardState() note right: The SD Card status shall be in \n HAL_SD_CARD_TRANSFER part1->part2 : HAL_SD_ReadBlocks_DMA() part2--> part1 part3 -> part2 : HAL_SD_IRQ_HANDLER() part2 -> part1 : Notify the User application with Transfer complete part1->part1 : Wait for the Card Transfer status using API HAL_SD_GetCardState() note right: The SD Card status shall be in \n HAL_SD_CARD_TRANSFER end @enduml$

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User application starting a IT transfer mode ¶

$@startuml hide footbox participant "User Application" as part1 participant "SD Driver" as part2 participant "ISR" as part3 activate part1 activate part2 group #lightsalmon SD Card initialization part1->part2 : HAL_SD_Init() note right: 2 instances availables : \n- HAL_SD_CARD_1 \n- HAL_SD_CARD_2 part2 --> part1 end group #9898fb SD Card configuration part1->part2 : HAL_SD_SetConfig part2 --> part1 group #lightblue I/O Operation process part1->part2 : HAL_SD_Erase() part2 --> part1: Erase completed part1->part2 : HAL_SD_WriteBlocks_IT() part2-->part1 part3 -> part2 : HAL_SD_IRQ_HANDLER() part2 -> part1 : Notify the User application with Transfer complete part1->part1 : Wait for the Card Transfer status using API HAL_SD_GetCardState() note right: The SD Card status shall be \n in HAL_SD_CARD_TRANSFER part1->part2 : HAL_SD_ReadBlocks_IT() part3 -> part2 : HAL_SD_IRQ_HANDLER() part2 -> part1 : Notify the User application with Transfer complete part1->part1 : Wait for the Card Transfer status using API HAL_SD_GetCardState() note right: The SD Card status shall be in \n HAL_SD_CARD_TRANSFER end @enduml$

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User application starting a LINKED-LIST transfer mode ¶

$@startuml hide footbox participant "User Application" as part1 participant "SD Driver" as part2 participant "ISR" as part3 participant "Q Driver" as part4 activate part1 activate part2 group #FFB133 Q Building group #lightblue Mandatory part1->part2 : HAL_SD_FillNodeConfig(&SD_Node_Conf, &SD_N1); note right : Build an SDMMC Node according to \n configured parameters within hal_sd_node_config_t structure end group #lightblue Mandatory part1->part4 : HAL_Q_Init(..., <b>&HAL_SD_DescOps) note right : Q initialization according to \n SD descriptor operation constant end group #lightblue Mandatory part1->part4 : HAL_Q_InsertNode() / HAL_Q_InsertNode_Head() / HAL_Q_InsertNode_Tail() note right : this operation can be repeated according \n to the Q node number to be inserted end end group #lightsalmon SD Card initialization part1->part2 : HAL_SD_Init() note right: 2 instances availables : \n- HAL_SD_CARD_1 \n- HAL_SD_CARD_2 part2 --> part1 end group #9898fb SD Card configuration part1->part2 : HAL_SD_SetConfig part2 --> part1 end group #lightblue I/O Operation process part1->part2 : HAL_SD_Erase() part2 --> part1: Erase completed part1->part2 : HAL_SD_WriteBlocks_LinkedList() part2-->part1 part3 -> part2 : HAL_SD_IRQ_HANDLER() part2 -> part1 : Notify the User application with Transfer complete part1->part1 : Wait for the Card Transfer status using API HAL_SD_GetCardState() note right: The SD Card status shall be in HAL_SD_CARD_TRANSFER part1->part2 : HAL_SD_ReadBlocks_LinkedList() part3 -> part2 : HAL_SD_IRQ_HANDLER() part2 -> part1 : Notify the User application with Transfer complete part1->part1 : Wait for the Card Transfer status using API HAL_SD_GetCardState() note right: The SD Card status shall be in HAL_SD_CARD_TRANSFER end @enduml$

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SD Card Insertion/Removal Use case ¶

$@startuml hide footbox participant "User Application" as part1 participant "SD Driver" as part2 participant "ISR" as part3 activate part1 activate part2 group #lightsalmon SD Card initialization part1->part2 : HAL_SD_Init() note right: 2 instances availables : \n- HAL_SD_CARD_1 \n- HAL_SD_CARD_2 part2 --> part1 end group #9898fb SD Card configuration part1->part2 : HAL_SD_SetConfig part2 --> part1 end group #9898fb Use Case when Detect the removal of an SD Card part3 -> part1 : Notify the User application That the SD card has been removed part1->part2 : HAL_SD_NotifyCardRemoval() note right: - The user must call the HAL_SD_NotifyCardRemoval() through the EXTI callback function.\n\r-According to the SD specification, set the default SDMMC configurationto be ready\nfor a new card insertion. part2 --> part1 end group #9898fb Use Case when Detect the insertion of an SD Card part3 -> part1 : Notify the User application That the SD card has been inserted part1->part2 : HAL_SD_NotifyCardInsertion() note right: - The user must call the HAL_SD_NotifyCardInsertion() through the EXTI callback function.\n\r- Apply user configuration once SD card inserted part2 --> part1 end @enduml$

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