SoftSPI< MisoPin, MosiPin, SckPin, Mode > Class Template Reference

Fast software SPI. More...

#include <softspi.h>

Public Member Functions
void	begin ()
FORCE_INLINE uint8_t	receive ()
FORCE_INLINE void	send (uint8_t data)
FORCE_INLINE uint8_t	transfer (uint8_t txData)

Detailed Description

template<uint8_t MisoPin, uint8_t MosiPin, uint8_t SckPin, uint8_t Mode = 0>
class SoftSPI< MisoPin, MosiPin, SckPin, Mode >

Fast software SPI.

Member Function Documentation

begin()

template<uint8_t MisoPin, uint8_t MosiPin, uint8_t SckPin, uint8_t Mode = 0>

void SoftSPI< MisoPin, MosiPin, SckPin, Mode >::begin

(

void

)

Initialize SoftSPI pins.

               {
    fastPinConfig(MisoPin, MISO_MODE, MISO_LEVEL);
    fastPinConfig(MosiPin, MOSI_MODE, !MODE_CPHA(Mode));
    fastPinConfig(SckPin, SCK_MODE, MODE_CPOL(Mode));
  }

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receive()

template<uint8_t MisoPin, uint8_t MosiPin, uint8_t SckPin, uint8_t Mode = 0>

FORCE_INLINE uint8_t SoftSPI< MisoPin, MosiPin, SckPin, Mode >::receive

(

)

Soft SPI receive byte.

Returns

Data byte received.

                                 {
    uint8_t data = 0;
    receiveBit(7, &data);
    receiveBit(6, &data);
    receiveBit(5, &data);
    receiveBit(4, &data);
    receiveBit(3, &data);
    receiveBit(2, &data);
    receiveBit(1, &data);
    receiveBit(0, &data);
    return data;
  }

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send()

template<uint8_t MisoPin, uint8_t MosiPin, uint8_t SckPin, uint8_t Mode = 0>

FORCE_INLINE void SoftSPI< MisoPin, MosiPin, SckPin, Mode >::send

(

uint8_t

data

)

Soft SPI send byte.

Parameters

[in]

data

Data byte to send.

                                       {
    sendBit(7, data);
    sendBit(6, data);
    sendBit(5, data);
    sendBit(4, data);
    sendBit(3, data);
    sendBit(2, data);
    sendBit(1, data);
    sendBit(0, data);
  }

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transfer()

template<uint8_t MisoPin, uint8_t MosiPin, uint8_t SckPin, uint8_t Mode = 0>

FORCE_INLINE uint8_t SoftSPI< MisoPin, MosiPin, SckPin, Mode >::transfer

(

uint8_t

txData

)

Soft SPI transfer byte.

Parameters

[in]

txData

Data byte to send.

Returns

Data byte received.

                                                {
    uint8_t rxData = 0;
    transferBit(7, &rxData, txData);
    transferBit(6, &rxData, txData);
    transferBit(5, &rxData, txData);
    transferBit(4, &rxData, txData);
    transferBit(3, &rxData, txData);
    transferBit(2, &rxData, txData);
    transferBit(1, &rxData, txData);
    transferBit(0, &rxData, txData);
    return rxData;
  }