Use case: Disable and enable write protection

Note

The HAL1 API name for disabling write operations has been renamed to write protection enable in HAL2.

Sequence diagram

Disable and enable write protection

@startuml == Prerequisite: Initialization and configuration == == Process == "User Application" -> "HAL SRAM Driver" : HAL_SRAM_WriteOperation_Enable() note over "HAL SRAM Driver" **Enable write operation** **to perform write operations** end note "User Application" -> "HAL SRAM Driver" : Write operations "User Application" -> "HAL SRAM Driver" : HAL_SRAM_WriteOperation_Disable() note over "HAL SRAM Driver" **Disable write operation** **to prevent any write operation** end note @enduml

Code snippet

HAL1

HAL2 

/* Enable write operation */
HAL_SRAM_WriteOperation_Enable(&hsram);

/* Do some write operations if needed */

/* Disable write operation */
HAL_SRAM_WriteOperation_Disable(&hsram);

/* Disable the Write protection */
HAL_SRAM_DisableWriteProtection(&hsram);

/* Do some write operations if needed */

/* Enable the Write protection */
HAL_SRAM_EnableWriteProtection(&hsram);

Key changes

  1. HAL2 uses explicit write protection APIs (enable/disable write protection).

  2. HAL1 enables/disables write operations using HAL_SRAM_WriteOperation_Enable()/HAL_SRAM_WriteOperation_Disable().