diff options
Diffstat (limited to 'LUFA/Drivers/Board/XMEGA/B1_XPLAINED/Dataflash.h')
| -rw-r--r-- | LUFA/Drivers/Board/XMEGA/B1_XPLAINED/Dataflash.h | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/LUFA/Drivers/Board/XMEGA/B1_XPLAINED/Dataflash.h b/LUFA/Drivers/Board/XMEGA/B1_XPLAINED/Dataflash.h index f1e6da5f0..d7ad64a5c 100644 --- a/LUFA/Drivers/Board/XMEGA/B1_XPLAINED/Dataflash.h +++ b/LUFA/Drivers/Board/XMEGA/B1_XPLAINED/Dataflash.h @@ -42,6 +42,11 @@ * * Board specific Dataflash driver header for the Atmel XMEGA A3BU Xplained board. * + * <table> + * <tr><th>Name</th><th>Info</th><th>Select Pin</th><th>SPI Port</th></tr> + * <tr><td>DATAFLASH_CHIP1</td><td>AT45DB642D (8MB)</td><td>PORTD.2</td><td>USARTC0 (In SPI Mode, Remapped)</td></tr> + * </table> + * * @{ */ @@ -71,10 +76,10 @@ #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 << 2) /** Internal main memory page size for the board's dataflash ICs. */ #define DATAFLASH_PAGE_SIZE 1024 @@ -88,10 +93,12 @@ */ 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; - PORTE.REMAP |= PORT_USART0_bm; + PORTC.REMAP |= PORT_USART0_bm; } /** Sends a byte to the currently selected dataflash IC, and returns a byte from the dataflash. @@ -103,7 +110,7 @@ static inline uint8_t Dataflash_TransferByte(const uint8_t Byte) ATTR_ALWAYS_INLINE; static inline uint8_t Dataflash_TransferByte(const uint8_t Byte) { - return SerialSPI_TransferByte(&USARTE0, Byte); + return SerialSPI_TransferByte(&USARTC0, Byte); } /** Sends a byte to the currently selected dataflash IC, and ignores the next byte from the dataflash. @@ -113,7 +120,7 @@ static inline void Dataflash_SendByte(const uint8_t Byte) ATTR_ALWAYS_INLINE; static inline void Dataflash_SendByte(const uint8_t Byte) { - SerialSPI_SendByte(&USARTE0, Byte); + SerialSPI_SendByte(&USARTC0, Byte); } /** Sends a dummy byte to the currently selected dataflash IC, and returns the next byte from the dataflash. @@ -123,7 +130,7 @@ static inline uint8_t Dataflash_ReceiveByte(void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT; static inline uint8_t Dataflash_ReceiveByte(void) { - return SerialSPI_ReceiveByte(&USARTE0); + return SerialSPI_ReceiveByte(&USARTC0); } /** Determines the currently selected dataflash chip. @@ -145,7 +152,8 @@ 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 & DATAFLASH_CHIPCS_MASK); } /** Deselects the current dataflash chip, so that no dataflash is selected. */ |