ahoneybun/qmk_firmware
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add partial support for the Atmel A3BU Xplained's Dataflash IC (physical USART-as-SPI transport driver still pending).

Browse source
This commit is contained in:
Dean Camera 2011-11-01 06:06:41 +00:00
parent cb7f7a8241
commit 0ad6f1fb53
9 changed files with 417 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

32
LUFA/Drivers/Board/AVR8/USBKEY/Dataflash.h
View file

@ -95,6 +95,38 @@
DATAFLASH_CHIPCS_PORT |= DATAFLASH_CHIPCS_MASK;
}
/** Sends a byte to the currently selected dataflash IC, and returns a byte from the dataflash.
*
* \param[in] Byte of data to send to the dataflash
*
* \return Last response byte from the dataflash
*/
static inline uint8_t Dataflash_TransferByte(const uint8_t Byte) ATTR_ALWAYS_INLINE;
static inline uint8_t Dataflash_TransferByte(const uint8_t Byte)
{
return SPI_TransferByte(Byte);
}
/** Sends a byte to the currently selected dataflash IC, and ignores the next byte from the dataflash.
*
* \param[in] Byte of data to send to the dataflash
*/
static inline void Dataflash_SendByte(const uint8_t Byte) ATTR_ALWAYS_INLINE;
static inline void Dataflash_SendByte(const uint8_t Byte)
{
SPI_SendByte(Byte);
}
/** Sends a dummy byte to the currently selected dataflash IC, and returns the next byte from the dataflash.
*
* \return Last response byte from the dataflash
*/
static inline uint8_t Dataflash_ReceiveByte(void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
static inline uint8_t Dataflash_ReceiveByte(void)
{
return SPI_ReceiveByte();
}
/** Determines the currently selected dataflash chip.
*
* \return Mask of the currently selected Dataflash chip, either \ref DATAFLASH_NO_CHIP if no chip is selected