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LPCOpen Platform for NXP LPC Microcontrollers
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DataflashManager.c File Reference
#include "DataflashManager.h"

Go to the source code of this file.

Macros

#define INCLUDE_FROM_DATAFLASHMANAGER_C
 

Functions

void DataflashManager_WriteBlocks (USB_ClassInfo_MS_Device_t *const MSInterfaceInfo, const uint32_t BlockAddress, uint16_t TotalBlocks)
 
void DataflashManager_ReadBlocks (USB_ClassInfo_MS_Device_t *const MSInterfaceInfo, const uint32_t BlockAddress, uint16_t TotalBlocks)
 
void DataflashManager_WriteBlocks_RAM (const uint32_t BlockAddress, uint16_t TotalBlocks, uint8_t *BufferPtr)
 
void DataflashManager_ReadBlocks_RAM (const uint32_t BlockAddress, uint16_t TotalBlocks, uint8_t *BufferPtr)
 
void DataflashManager_ResetDataflashProtections (void)
 
bool DataflashManager_CheckDataflashOperation (void)
 

Detailed Description

Functions to manage the physical Dataflash media, including reading and writing of blocks of data. These functions are called by the SCSI layer when data must be stored or retrieved to/from the physical storage media. If a different media is used (such as a SD card or EEPROM), functions similar to these will need to be generated.

Definition in file DataflashManager.c.

Macro Definition Documentation

#define INCLUDE_FROM_DATAFLASHMANAGER_C

Definition at line 36 of file DataflashManager.c.

Function Documentation

bool DataflashManager_CheckDataflashOperation ( void  )

Performs a simple test on the attached Dataflash IC(s) to ensure that they are working.

Returns
Boolean true if all media chips are working, false otherwise

Definition at line 503 of file DataflashManager.c.

void DataflashManager_ReadBlocks ( USB_ClassInfo_MS_Device_t *const  MSInterfaceInfo,
const uint32_t  BlockAddress,
uint16_t  TotalBlocks 
)

Reads blocks (OS blocks, not Dataflash pages) from the storage medium, the board Dataflash IC(s), into the pre-selected data IN endpoint. This routine reads in Dataflash page sized blocks from the Dataflash and writes them in OS sized blocks to the endpoint.

Parameters
[in]MSInterfaceInfoPointer to a structure containing a Mass Storage Class configuration and state
[in]BlockAddressData block starting address for the read sequence
[in]TotalBlocksNumber of blocks of data to read

Definition at line 183 of file DataflashManager.c.

void DataflashManager_ReadBlocks_RAM ( const uint32_t  BlockAddress,
uint16_t  TotalBlocks,
uint8_t *  BufferPtr 
)

Reads blocks (OS blocks, not Dataflash pages) from the storage medium, the board Dataflash IC(s), into the preallocated RAM buffer. This routine reads in Dataflash page sized blocks from the Dataflash and writes them in OS sized blocks to the given buffer. This can be linked to FAT libraries to read the files stored on the Dataflash.

Parameters
[in]BlockAddressData block starting address for the read sequence
[in]TotalBlocksNumber of blocks of data to read
[out]BufferPtrPointer to the data destination RAM buffer

Definition at line 394 of file DataflashManager.c.

void DataflashManager_ResetDataflashProtections ( void  )

Disables the Dataflash memory write protection bits on the board Dataflash ICs, if enabled.

Definition at line 459 of file DataflashManager.c.

void DataflashManager_WriteBlocks ( USB_ClassInfo_MS_Device_t *const  MSInterfaceInfo,
const uint32_t  BlockAddress,
uint16_t  TotalBlocks 
)

Writes blocks (OS blocks, not Dataflash pages) to the storage medium, the board Dataflash IC(s), from the pre-selected data OUT endpoint. This routine reads in OS sized blocks from the endpoint and writes them to the Dataflash in Dataflash page sized blocks.

Parameters
[in]MSInterfaceInfoPointer to a structure containing a Mass Storage Class configuration and state
[in]BlockAddressData block starting address for the write sequence
[in]TotalBlocksNumber of blocks of data to write

Definition at line 47 of file DataflashManager.c.

void DataflashManager_WriteBlocks_RAM ( const uint32_t  BlockAddress,
uint16_t  TotalBlocks,
uint8_t *  BufferPtr 
)

Writes blocks (OS blocks, not Dataflash pages) to the storage medium, the board Dataflash IC(s), from the given RAM buffer. This routine reads in OS sized blocks from the buffer and writes them to the Dataflash in Dataflash page sized blocks. This can be linked to FAT libraries to write files to the Dataflash.

Parameters
[in]BlockAddressData block starting address for the write sequence
[in]TotalBlocksNumber of blocks of data to write
[in]BufferPtrPointer to the data source RAM buffer

Definition at line 293 of file DataflashManager.c.