1.1.3.4.1 DRV_MEMORY_Initialize Function

SYS_MODULE_OBJ DRV_MEMORY_Initialize
(
    const SYS_MODULE_INDEX drvIndex,
    const SYS_MODULE_INIT * const init
);

Initializes the Memory instance for the specified driver index

This routine initializes the Memory driver instance for the specified driver index, making it ready for clients to open and use it.

None.

If successful, returns a valid handle to a driver instance object. Otherwise it returns SYS_MODULE_OBJ_INVALID.

// This code snippet shows an example of initializing the Memory Driver
// with SST26 serial flash device attached and File system Enabled.

SYS_MODULE_OBJ objectHandle;

static uint8_t gDrvMemory0EraseBuffer[DRV_SST26_ERASE_BUFFER_SIZE] CACHE_ALIGN;

static DRV_MEMORY_CLIENT_OBJECT gDrvMemory0ClientObject[DRV_MEMORY_CLIENTS_NUMBER_IDX0] = { 0 };

static DRV_MEMORY_BUFFER_OBJECT gDrvMemory0BufferObject[DRV_MEMORY_BUFFER_QUEUE_SIZE_IDX0] = { 0 };

const DRV_MEMORY_DEVICE_INTERFACE drvMemory0DeviceAPI = {
    .Open = DRV_SST26_Open,
    .Close = DRV_SST26_Close,
    .Status = DRV_SST26_Status,
    .SectorErase = DRV_SST26_SectorErase,
    .Read = DRV_SST26_Read,
    .PageWrite = DRV_SST26_PageWrite,
    .EventHandlerSet = NULL,
    .GeometryGet = (DRV_MEMORY_DEVICE_GEOMETRY_GET)DRV_SST26_GeometryGet,
    .TransferStatusGet = (DRV_MEMORY_DEVICE_TRANSFER_STATUS_GET)DRV_SST26_TransferStatusGet
};

const DRV_MEMORY_INIT drvMemory0InitData =
{
    .memDevIndex = DRV_SST26_INDEX,
    .memoryDevice = &drvMemory0DeviceAPI,
    .isFsEnabled = true,
    .deviceMediaType = (uint8_t)SYS_FS_MEDIA_TYPE_SPIFLASH,
    .ewBuffer = &gDrvMemory0EraseBuffer[0],
    .clientObjPool = (uintptr_t)&gDrvMemory0ClientObject[0],
    .bufferObj = (uintptr_t)&gDrvMemory0BufferObject[0],
    .queueSize = DRV_MEMORY_BUFFER_QUEUE_SIZE_IDX0,
    .nClientsMax = DRV_MEMORY_CLIENTS_NUMBER_IDX0
};

//usage of DRV_MEMORY_INDEX_0 indicates usage of Flash-related APIs
objectHandle = DRV_MEMORY_Initialize((SYS_MODULE_INDEX)DRV_MEMORY_INDEX_0, (SYS_MODULE_INIT *)&drvMemory0InitData);

if (SYS_MODULE_OBJ_INVALID == objectHandle)
{
    // Handle error
}

This routine must be called before any other Memory routine is called.

This routine should only be called once during system initialization.

This routine will NEVER block for hardware access. If the operation requires time to allow the hardware to initialize, it will be reported by the DRV_MEMORY_Status operation. The system must use DRV_MEMORY_Status to find out when the driver is in the ready state.