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Added support to the AVRISP-MKII project for ISP speeds slower than 125KHz via a new software SPI driver.

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Added new SPI_ORDER_* data order masks to the SPI peripheral driver.
This commit is contained in:
Dean Camera 2010-07-29 07:09:57 +00:00
parent 9a97f16b07
commit de5b16909a
11 changed files with 269 additions and 90 deletions
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11
LUFA/Drivers/Peripheral/SPI.h
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@ -97,6 +97,15 @@
/** SPI data sample mode mask for SPI_Init(). Indicates that the data should sampled on the leading edge. */
#define SPI_SAMPLE_LEADING (0 << CPHA)
/** SPI data sample mode mask for SPI_Init(). Indicates that the data should be sampled on the trailing edge. */
#define SPI_SAMPLE_TRAILING (1 << CPHA)
/** SPI data order mask for SPI_Init(). Indicates that data should be shifted out MSB first. */
#define SPI_ORDER_MSB_FIRST (0 << DORD)
/** SPI data order mask for SPI_Init(). Indicates that data should be shifted out MSB first. */
#define SPI_ORDER_LSB_FIRST (1 << DORD)
/** SPI data sample mode mask for SPI_Init(). Indicates that the data should be sampled on the trailing edge. */
#define SPI_SAMPLE_TRAILING (1 << CPHA)
@ -111,7 +120,7 @@
* SPI routines.
*
* \param[in] SPIOptions SPI Options, a mask consisting of one of each of the SPI_SPEED_*,
* SPI_SCK_*, SPI_SAMPLE_* and SPI_MODE_* masks.
* SPI_SCK_*, SPI_SAMPLE_*, SPI_ORDER_* and SPI_MODE_* masks.
*/
static inline void SPI_Init(const uint8_t SPIOptions)
{