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Dataflash_WaitWhileBusy() now always ensures that the dataflash is ready for the next command immediately after returning, no need to call Dataflash_ToggleSelectedChipCS() afterwards.

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Added new DATAFLASH_CHIP_MASK() macro to the Dataflash driver, which returns the Dataflash select mask for the given chip index.

Updated MassStorage device block write routines to use ping-pong Dataflash buffering to increase throughput by around 30%.
This commit is contained in:
Dean Camera 2009-06-29 09:30:06 +00:00
parent f1076ac4d6
commit 86e6ed7f31
6 changed files with 89 additions and 58 deletions
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15
LUFA/Drivers/Board/Dataflash.h
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@ -75,6 +75,18 @@
#endif
/* Public Interface - May be used in end-application: */
/* Macros: */
#if !defined(__DOXYGEN__)
#define __GET_DATAFLASH_MASK2(x, y) x ## y
#define __GET_DATAFLASH_MASK(x) __GET_DATAFLASH_MASK2(DATAFLASH_CHIP,x)
#endif
/* Retrieves the Dataflash chip select mask for the given Dataflash chip index.
*
* \param index Index of the dataflash chip mask to retrieve
*/
#define DATAFLASH_CHIP_MASK(index) __GET_DATAFLASH_MASK(index)
/* Pseudo-Function Macros: */
#if defined(__DOXYGEN__)
/** Determines the currently selected dataflash chip.
@ -149,7 +161,7 @@
#else
#error The selected board does not contain a dataflash IC.
#endif
/* Inline Functions: */
/** Initializes the dataflash driver (including the SPI driver) so that commands and data may be
* sent to an attached dataflash IC.
@ -183,6 +195,7 @@
Dataflash_ToggleSelectedChipCS();
Dataflash_SendByte(DF_CMD_GETSTATUS);
while (!(Dataflash_ReceiveByte() & DF_STATUS_READY));
Dataflash_ToggleSelectedChipCS();
}
/** Selects a dataflash IC from the given page number, which should range from 0 to