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Add new Master SPI Mode USART serial peripheral driver for the XMEGA and AVR8 architectures.

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Modify board Dataflash drivers so that each individual board is responsible for including the correct peripheral driver (SPI or SerialSPI) based on the board connections to the Dataflash chip.

Complete A3BU-XPLAINED and B1-XPLAINED board Dataflash drivers.
This commit is contained in:
Dean Camera 2012-02-12 20:34:33 +00:00
parent f45d60f768
commit 09d2be0dc1
14 changed files with 513 additions and 29 deletions
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16
LUFA/Drivers/Board/XMEGA/B1_XPLAINED/Dataflash.h
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@ -51,6 +51,7 @@
/* Includes: */
#include "../../../../Common/Common.h"
#include "../../../Misc/AT45DB642D.h"
#include "../../../Peripheral/SerialSPI.h"
/* Preprocessor Checks: */
#if !defined(__INCLUDE_FROM_DATAFLASH_H)
@ -100,9 +101,7 @@
static inline uint8_t Dataflash_TransferByte(const uint8_t Byte) ATTR_ALWAYS_INLINE;
static inline uint8_t Dataflash_TransferByte(const uint8_t Byte)
{
// TODO: USART in SPI mode on PORT C
#warning The Dataflash driver for the selected board is currently incomplete and non-functional.
return 0;
return SerialSPI_TransferByte(&USARTE0, Byte);
}
/** Sends a byte to the currently selected dataflash IC, and ignores the next byte from the dataflash.
@ -112,7 +111,7 @@
static inline void Dataflash_SendByte(const uint8_t Byte) ATTR_ALWAYS_INLINE;
static inline void Dataflash_SendByte(const uint8_t Byte)
{
return; // TODO
SerialSPI_SendByte(&USARTE0, Byte);
}
/** Sends a dummy byte to the currently selected dataflash IC, and returns the next byte from the dataflash.
@ -122,7 +121,7 @@
static inline uint8_t Dataflash_ReceiveByte(void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT;
static inline uint8_t Dataflash_ReceiveByte(void)
{
return 0; // TODO
return SerialSPI_ReceiveByte(&USARTE0);
}
/** Determines the currently selected dataflash chip.
@ -170,10 +169,7 @@
if (PageAddress >= (DATAFLASH_PAGES * DATAFLASH_TOTALCHIPS))
return;
if (PageAddress & 0x01)
Dataflash_SelectChip(DATAFLASH_CHIP2);
else
Dataflash_SelectChip(DATAFLASH_CHIP1);
Dataflash_SelectChip(DATAFLASH_CHIP1);
}
/** Toggles the select line of the currently selected dataflash IC, so that it is ready to receive
@ -207,8 +203,6 @@
static inline void Dataflash_SendAddressBytes(uint16_t PageAddress,
const uint16_t BufferByte)
{
PageAddress >>= 1;
Dataflash_SendByte(PageAddress >> 5);
Dataflash_SendByte((PageAddress << 3) | (BufferByte >> 8));
Dataflash_SendByte(BufferByte);