#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 << 4)
/** Internal main memory page size for the board's dataflash ICs. */
#define DATAFLASH_PAGE_SIZE 1024
*/
static inline void Dataflash_Init(void)
{
- DATAFLASH_CHIPCS_PORT.DIRSET = DATAFLASH_CHIPCS_MASK;
- DATAFLASH_CHIPCS_PORT.OUTSET = DATAFLASH_CHIPCS_MASK;
+ DATAFLASH_CHIPCS_PORT.DIRSET = DATAFLASH_CHIPCS_MASK;
+
+ PORTCFG.MPCMASK = DATAFLASH_CHIPCS_MASK;
+ DATAFLASH_CHIPCS_PORT.PIN0CTRL = PORT_INVEN_bm;
}
/** Sends a byte to the currently selected dataflash IC, and returns a byte from the dataflash.
static inline void Dataflash_SelectChip(const uint8_t ChipMask) ATTR_ALWAYS_INLINE;
static inline void Dataflash_SelectChip(const uint8_t ChipMask)
{
- DATAFLASH_CHIPCS_PORT.OUT = ((DATAFLASH_CHIPCS_PORT.OUT & ~DATAFLASH_CHIPCS_MASK) | ChipMask);
+ DATAFLASH_CHIPCS_PORT.OUTCLR = DATAFLASH_CHIPCS_MASK;
+ DATAFLASH_CHIPCS_PORT.OUTSET = ChipMask;
}
/** Deselects the current dataflash chip, so that no dataflash is selected. */