/*
LUFA Library
Copyright (C) Dean Camera, 2010.
-
+
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
- Permission to use, copy, modify, distribute, and sell this
+ Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
- without fee, provided that the above copyright notice appear in
+ without fee, provided that the above copyright notice appear in
all copies and that both that the copyright notice and this
- permission notice and warranty disclaimer appear in supporting
- documentation, and that the name of the author not be used in
- advertising or publicity pertaining to distribution of the
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaim all warranties with regard to this
#if !defined(__INCLUDE_FROM_DATAFLASH_H)
#error Do not include this file directly. Include LUFA/Drivers/Board/Dataflash.h instead.
#endif
-
+
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Macros: */
#define DATAFLASH_CHIPCS_DDR // TODO: Replace with the DDR register name for the board's Dataflash ICs
#define DATAFLASH_CHIPCS_PORT // TODO: Replace with the PORT register name for the board's Dataflash ICs
#endif
-
+
/* Public Interface - May be used in end-application: */
/* Macros: */
/** Constant indicating the total number of dataflash ICs mounted on the selected board. */
/** Mask for the second dataflash chip selected. */
#define DATAFLASH_CHIP2 // TODO: Replace with mask to hold /CS of second Dataflash low, and all others high
-
+
/** Internal main memory page size for the board's dataflash ICs. */
#define DATAFLASH_PAGE_SIZE // TODO: Replace with the page size for the Dataflash ICs
DATAFLASH_CHIPCS_DDR |= DATAFLASH_CHIPCS_MASK;
DATAFLASH_CHIPCS_PORT |= DATAFLASH_CHIPCS_MASK;
}
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+
/** Determines the currently selected dataflash chip.
*
* \return Mask of the currently selected Dataflash chip, either \ref DATAFLASH_NO_CHIP if no chip is selected
static inline void Dataflash_SelectChipFromPage(const uint16_t PageAddress)
{
Dataflash_DeselectChip();
-
+
if (PageAddress >= (DATAFLASH_PAGES * DATAFLASH_TOTALCHIPS))
return;
static inline void Dataflash_ToggleSelectedChipCS(void)
{
uint8_t SelectedChipMask = Dataflash_GetSelectedChip();
-
+
Dataflash_DeselectChip();
Dataflash_SelectChip(SelectedChipMask);
}
-
+
/** Spin-loops while the currently selected dataflash is busy executing a command, such as a main
* memory page program or main memory to buffer transfer.
*/
Dataflash_ToggleSelectedChipCS();
Dataflash_SendByte(DF_CMD_GETSTATUS);
while (!(Dataflash_ReceiveByte() & DF_STATUS_READY));
- Dataflash_ToggleSelectedChipCS();
+ Dataflash_ToggleSelectedChipCS();
}
/** Sends a set of page and buffer address bytes to the currently selected dataflash IC, for use with
#if (DATAFLASH_TOTALCHIPS == 2)
PageAddress >>= 1;
#endif
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+
Dataflash_SendByte(PageAddress >> 5);
Dataflash_SendByte((PageAddress << 3) | (BufferByte >> 8));
Dataflash_SendByte(BufferByte);
}
-
+
#endif
+