HAL SDRAM control functions migration ¶

This section provides information about the HAL SDRAM control functions migration.

HAL SDRAM enables and disables write protection ¶

Note

The device is now passed as parameter to the write protection APIs to specify which memory one to protect.

HAL1	HAL2
HAL_SDRAM_WriteProtection_Enable(SDRAM_HandleTypeDef *hsdram);	HAL_SDRAM_EnableWriteProtection(hal_sdram_handle_t *hsdram, hal_sdram_device_t device);
HAL_SDRAM_WriteProtection_Disable(SDRAM_HandleTypeDef *hsdram);	HAL_SDRAM_DisableWriteProtection(hal_sdram_handle_t *hsdram, hal_sdram_device_t device);

HAL1

HAL2

                HAL_SDRAM_WriteProtection_Enable(SDRAM_HandleTypeDef *hsdram);

               

                HAL_SDRAM_EnableWriteProtection(hal_sdram_handle_t *hsdram,
                                hal_sdram_device_t device);

                HAL_SDRAM_WriteProtection_Disable(SDRAM_HandleTypeDef *hsdram);

               

                HAL_SDRAM_DisableWriteProtection(hal_sdram_handle_t *hsdram,
                                 hal_sdram_device_t device);

Note

HAL_SDRAM_IsEnabledWriteProtection() is added in HAL2 to check the write protection status for a given device.

HAL SDRAM get mode ¶

HAL1	HAL2
uint32_t HAL_SDRAM_GetModeStatus(SDRAM_HandleTypeDef *hsdram);	hal_sdram_device_state_t HAL_SDRAM_GetDeviceMode(const hal_sdram_handle_t *hsdram, hal_sdram_device_t device);

HAL SDRAM program refresh rate ¶

HAL1	HAL2
HAL_SDRAM_ProgramRefreshRate(SDRAM_HandleTypeDef *hsdram, uint32_t RefreshRate); // Clock cycle	HAL_SDRAM_SetRefreshRate(hal_sdram_handle_t *hsdram, uint32_t refresh_period_ms); // milli second

HAL SDRAM sends command ¶

Note

The device is now passed as parameter to the send command API to specify which memory to set.

HAL1	HAL2
HAL_SDRAM_SendCommand(SDRAM_HandleTypeDef hsdram, FMC_SDRAM_CommandTypeDef Command, uint32_t Timeout);	HAL_SDRAM_SendCommand(hal_sdram_handle_t hsdram, hal_sdram_device_t device, hal_sdram_command_t p_command_config, uint32_t timeout_ms);

HAL1

HAL2

                HAL_SDRAM_SendCommand(SDRAM_HandleTypeDef *hsdram,
                      FMC_SDRAM_CommandTypeDef *Command,
                      uint32_t Timeout);

               

                HAL_SDRAM_SendCommand(hal_sdram_handle_t *hsdram,
                      hal_sdram_device_t device,
                      hal_sdram_command_t *p_command_config,
                      uint32_t timeout_ms);

               

Related use case: Use case: Command process operation

HAL SDRAM sets auto refresh number ¶

HAL1	HAL2
HAL_SDRAM_SetAutoRefreshNumber(SDRAM_HandleTypeDef *hsdram, uint32_t AutoRefreshNumber);	Removed: The auto refresh number will be set in the parameter of `hal_sdram_command_t` that will be passed to `HAL_SDRAM_SendCommand()` if the the command is `HAL_SDRAM_COMMAND_AUTOREFRESH`.