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@ -100,61 +100,61 @@ |
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/* Macros: */ |
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/** \name SPI Prescaler Configuration Masks */ |
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//@{
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 2. */ |
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 2. */ |
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#define SPI_SPEED_FCPU_DIV_2 SPI_USE_DOUBLESPEED |
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 4. */ |
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 4. */ |
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#define SPI_SPEED_FCPU_DIV_4 0 |
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 8. */ |
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 8. */ |
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#define SPI_SPEED_FCPU_DIV_8 (SPI_USE_DOUBLESPEED | (1 << SPR0)) |
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 16. */ |
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 16. */ |
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#define SPI_SPEED_FCPU_DIV_16 (1 << SPR0) |
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 32. */ |
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 32. */ |
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#define SPI_SPEED_FCPU_DIV_32 (SPI_USE_DOUBLESPEED | (1 << SPR1)) |
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 64. */ |
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 64. */ |
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#define SPI_SPEED_FCPU_DIV_64 (SPI_USE_DOUBLESPEED | (1 << SPR1) | (1 << SPR0)) |
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/** SPI prescaler mask for \c SPI_Init(). Divides the system clock by a factor of 128. */ |
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/** SPI prescaler mask for \ref SPI_Init(). Divides the system clock by a factor of 128. */ |
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#define SPI_SPEED_FCPU_DIV_128 ((1 << SPR1) | (1 << SPR0)) |
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//@}
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/** \name SPI SCK Polarity Configuration Masks */ |
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//@{
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/** SPI clock polarity mask for \c SPI_Init(). Indicates that the SCK should lead on the rising edge. */ |
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/** SPI clock polarity mask for \ref SPI_Init(). Indicates that the SCK should lead on the rising edge. */ |
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#define SPI_SCK_LEAD_RISING (0 << CPOL) |
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/** SPI clock polarity mask for \c SPI_Init(). Indicates that the SCK should lead on the falling edge. */ |
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/** SPI clock polarity mask for \ref SPI_Init(). Indicates that the SCK should lead on the falling edge. */ |
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#define SPI_SCK_LEAD_FALLING (1 << CPOL) |
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//@}
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/** \name SPI Sample Edge Configuration Masks */ |
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//@{
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/** SPI data sample mode mask for \c SPI_Init(). Indicates that the data should sampled on the leading edge. */ |
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/** SPI data sample mode mask for \ref SPI_Init(). Indicates that the data should sampled on the leading edge. */ |
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#define SPI_SAMPLE_LEADING (0 << CPHA) |
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/** SPI data sample mode mask for \c SPI_Init(). Indicates that the data should be sampled on the trailing edge. */ |
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/** SPI data sample mode mask for \ref SPI_Init(). Indicates that the data should be sampled on the trailing edge. */ |
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#define SPI_SAMPLE_TRAILING (1 << CPHA) |
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//@}
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/** \name SPI Data Ordering Configuration Masks */ |
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//@{
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/** SPI data order mask for \c SPI_Init(). Indicates that data should be shifted out MSB first. */ |
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/** SPI data order mask for \ref SPI_Init(). Indicates that data should be shifted out MSB first. */ |
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#define SPI_ORDER_MSB_FIRST (0 << DORD) |
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/** SPI data order mask for \c SPI_Init(). Indicates that data should be shifted out LSB first. */ |
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/** SPI data order mask for \ref SPI_Init(). Indicates that data should be shifted out LSB first. */ |
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#define SPI_ORDER_LSB_FIRST (1 << DORD) |
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//@}
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/** \name SPI Mode Configuration Masks */ |
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//@{
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/** SPI mode mask for \c SPI_Init(). Indicates that the SPI interface should be initialized into slave mode. */ |
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/** SPI mode mask for \ref SPI_Init(). Indicates that the SPI interface should be initialized into slave mode. */ |
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#define SPI_MODE_SLAVE (0 << MSTR) |
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/** SPI mode mask for \c SPI_Init(). Indicates that the SPI interface should be initialized into master mode. */ |
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/** SPI mode mask for \ref SPI_Init(). Indicates that the SPI interface should be initialized into master mode. */ |
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#define SPI_MODE_MASTER (1 << MSTR) |
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//@}
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