*
* Board specific Dataflash driver header for the Atmel EVK527.
*
+ * <table>
+ * <tr><th>Name</th><th>Info</th><th>Select Pin</th><th>SPI Port</th></tr>
+ * <tr><td>DATAFLASH_CHIP1</td><td>AT45DB321C (4MB)</td><td>PORTE.6</td><td>SPI0</td></tr>
+ * </table>
+ *
* @{
*/
/* Includes: */
#include "../../../../Common/Common.h"
#include "../../../Misc/AT45DB321C.h"
+ #include "../../../Peripheral/SPI.h"
/* Preprocessor Checks: */
#if !defined(__INCLUDE_FROM_DATAFLASH_H)
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Macros: */
- #define DATAFLASH_CHIPCS_MASK (1 << 6)
+ #define DATAFLASH_CHIPCS_MASK DATAFLASH_CHIP1
#define DATAFLASH_CHIPCS_DDR DDRE
#define DATAFLASH_CHIPCS_PORT PORTE
#endif
#define DATAFLASH_TOTALCHIPS 1
/** Mask for no dataflash chip selected. */
- #define DATAFLASH_NO_CHIP DATAFLASH_CHIPCS_MASK
+ #define DATAFLASH_NO_CHIP 0
/** Mask for the first dataflash chip selected. */
- #define DATAFLASH_CHIP1 0
+ #define DATAFLASH_CHIP1 (1 << 6)
/** Internal main memory page size for the board's dataflash IC. */
#define DATAFLASH_PAGE_SIZE 512
/** Determines the currently selected dataflash chip.
*
* \return Mask of the currently selected Dataflash chip, either \ref DATAFLASH_NO_CHIP if no chip is selected
- * or a DATAFLASH_CHIPn mask (where n is the chip number).
+ * or a DATAFLASH_CHIPn mask (where n is the chip number).
*/
static inline uint8_t Dataflash_GetSelectedChip(void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
static inline uint8_t Dataflash_GetSelectedChip(void)
{
- return (DATAFLASH_CHIPCS_PORT & DATAFLASH_CHIPCS_MASK);
+ return (~DATAFLASH_CHIPCS_PORT & DATAFLASH_CHIPCS_MASK);
}
/** Selects the given dataflash chip.
*
- * \param[in] ChipMask Mask of the Dataflash IC to select, in the form of DATAFLASH_CHIPn mask (where n is
+ * \param[in] ChipMask Mask of the Dataflash IC to select, in the form of a \c DATAFLASH_CHIPn mask (where n is
* the chip number).
*/
static inline void Dataflash_SelectChip(const uint8_t ChipMask) ATTR_ALWAYS_INLINE;
static inline void Dataflash_SelectChip(const uint8_t ChipMask)
{
- DATAFLASH_CHIPCS_PORT = ((DATAFLASH_CHIPCS_PORT & ~DATAFLASH_CHIPCS_MASK) | ChipMask);
+ DATAFLASH_CHIPCS_PORT = ((DATAFLASH_CHIPCS_PORT | DATAFLASH_CHIPCS_MASK) & ~ChipMask);
}
/** Deselects the current dataflash chip, so that no dataflash is selected. */