---

SPI

Modules

• Identifier of all available SPI channel

Functions

• void Set_SPICS (bool ena)

  Control of SPI chip select.
  
  

• void Set_SPI (int channel)

  Select SPI channel.
  
  

• unsigned char Write_SPI (unsigned char value)

  Write a byte on selected SPI channel. CS is automatically asserted and deasserted.
  
  

• unsigned char Write_SPIx (unsigned char value)

  Read/Write a byte on selected SPI channel. CS isn't changed.
  
  

• unsigned char Write_SPIn (const unsigned char *value, unsigned int num)

  Write n byte on selected SPI channel. CS is automatically asserted and deasserted.
  
  

• unsigned char Read_SPIn (unsigned char *value, unsigned int num)

  Write n byte on selected SPI channel. CS is automatically asserted and deasserted.
  
  

• unsigned char Write_SPInx (const unsigned char *value, unsigned int num)

  Write n byte on selected SPI channel. CS isn't changed.
  
  

• unsigned char Read_SPInx (unsigned char *value, unsigned int num)

  Write n byte on selected SPI channel. CS isn't changed.
  
  

---

Function Documentation

unsigned char Read_SPIn (  unsigned char *  value, unsigned int  num )

Write n byte on selected SPI channel. CS is automatically asserted and deasserted. Parameters: value  Array of values to write num  Number of values to write Returns: Last byte read See also: Set_SPICS, Write_SPIx, Write_SPI, Write_SPIn, Write_SPInx, Read_SPInx unsigned char buff[4]; Read_SPIn(buff, 4);

unsigned char Read_SPInx (  unsigned char *  value, unsigned int  num )

Write n byte on selected SPI channel. CS isn't changed. Parameters: value  Array of values to write num  Number of values to write Returns: Last byte read See also: Set_SPICS, Write_SPIx, Write_SPI, Write_SPIn, Read_SPIn, Write_SPInx unsigned char buff[4]; Read_SPIn(buff, 4);

void Set_SPI (  int  channel  )

Select SPI channel. Parameters: channel  Address that select specified SPI chip, , see Identifier of all available SPI channel See also: Set_SPICS, Write_SPI, Write_SPIn, Write_SPIx

void Set_SPICS (  bool  ena  )  [inline]

Control of SPI chip select. Parameters: ena  Set true to activate SPI chip select, false to deactivate it See also: Set_SPI, Write_SPI, Write_SPIn

unsigned char Write_SPI (  unsigned char  value  )

Write a byte on selected SPI channel. CS is automatically asserted and deasserted. Parameters: value  Value to write Returns: Byte read See also: Set_SPI, Set_SPICS, Write_SPIx, Write_SPIn

unsigned char Write_SPIn (  const unsigned char *  value, unsigned int  num )

Write n byte on selected SPI channel. CS is automatically asserted and deasserted. Parameters: value  Array of values to write num  Number of values to write Returns: Last byte read See also: Set_SPICS, Write_SPIx, Write_SPI, Write_SPIn unsigned char buff[4] = { 0x33, 0x17, 0x57, 0x19 }; Write_SPIn(buff, 4);

unsigned char Write_SPInx (  const unsigned char *  value, unsigned int  num )

Write n byte on selected SPI channel. CS isn't changed. Parameters: value  Array of values to write num  Number of values to write Returns: Last byte read See also: Set_SPICS, Write_SPIx, Write_SPI, Write_SPIn, Read_SPIn, Read_SPInx unsigned char buff[4] = { 0x33, 0x17, 0x57, 0x19 }; Write_SPIn(buff, 4);

unsigned char Write_SPIx (  unsigned char  value  )

Read/Write a byte on selected SPI channel. CS isn't changed. Parameters: value  Value to write Returns: Byte read // Usage Set_SPICS(true); Write_SPIx(val); ... Set_SPICS(false); See also: Set_SPICS, Set_SPI, Write_SPIn, Write_SPIx

---