Darren Ulrich / UniGraphic

Dependents:   Bicycl_Computer_NUCLEO-F411RE Bicycl_Computer_NUCLEO-L476RG

Fork of UniGraphic by GraphicsDisplay

Embed: (wiki syntax)

« Back to documentation index

SPI8 Class Reference

SPI 8bit interface. More...

#include <SPI8.h>

Inherits Protocols.

Public Member Functions

 SPI8 (int Hz, PinName mosi, PinName miso, PinName sclk, PinName CS, PinName reset, PinName DC)
 Create an SPI 8bit display interface with 3 control pins.

Protected Member Functions

virtual void wr_cmd8 (unsigned char cmd)
 Send 8bit command to display controller.
virtual void wr_data8 (unsigned char data)
 Send 8bit data to display controller.
virtual void wr_cmd16 (unsigned short cmd)
 Send 2x8bit command to display controller.
virtual void wr_data16 (unsigned short data)
 Send 2x8bit data to display controller.
virtual void wr_gram (unsigned short data)
 Send 16bit pixeldata to display controller.
virtual void wr_gram (unsigned short data, unsigned int count)
 Send same 16bit pixeldata to display controller multiple times.
virtual void wr_grambuf (unsigned short *data, unsigned int lenght)
 Send array of pixeldata shorts to display controller.
virtual unsigned short rd_gram (bool convert)
 Read 16bit pixeldata from display controller (with dummy cycle)
virtual unsigned int rd_reg_data32 (unsigned char reg)
 Read 4x8bit register data (with dummy cycle)
virtual unsigned int rd_extcreg_data32 (unsigned char reg, unsigned char SPIreadenablecmd)
 Read 3x8bit ExtendedCommands register data.
virtual void hw_reset ()
 HW reset sequence (without display init commands)
virtual void BusEnable (bool enable)
 Set ChipSelect high or low.

Detailed Description

SPI 8bit interface.

Definition at line 10 of file SPI8.h.


Constructor & Destructor Documentation

SPI8 ( int  Hz,
PinName  mosi,
PinName  miso,
PinName  sclk,
PinName  CS,
PinName  reset,
PinName  DC 
)

Create an SPI 8bit display interface with 3 control pins.

Parameters:
SPImosi
SPImiso
SPIsclk
CSpin connected to CS of display
resetpin connected to RESET of display
DCpin connected to data/command of display

Definition at line 23 of file SPI8.cpp.


Member Function Documentation

void BusEnable ( bool  enable ) [protected, virtual]

Set ChipSelect high or low.

Parameters:
enable0/1

Implements Protocols.

Definition at line 239 of file SPI8.cpp.

void hw_reset (  ) [protected, virtual]

HW reset sequence (without display init commands)

Implements Protocols.

Definition at line 225 of file SPI8.cpp.

unsigned int rd_extcreg_data32 ( unsigned char  reg,
unsigned char  SPIreadenablecmd 
) [protected, virtual]

Read 3x8bit ExtendedCommands register data.

Parameters:
regthe register to read
SPIreadenablecmdvendor/device specific cmd to read EXTC registers
Returns:
data as uint
Note:
EXTC regs (0xB0 to 0xFF) are read/write registers but needs special cmd to be read in SPI mode

Implements Protocols.

Definition at line 206 of file SPI8.cpp.

unsigned short rd_gram ( bool  convert ) [protected, virtual]

Read 16bit pixeldata from display controller (with dummy cycle)

Parameters:
converttrue/false. Convert 18bit to 16bit, some controllers returns 18bit
Returns:
16bit color

Implements Protocols.

Definition at line 156 of file SPI8.cpp.

unsigned int rd_reg_data32 ( unsigned char  reg ) [protected, virtual]

Read 4x8bit register data (with dummy cycle)

Parameters:
regthe register to read
Returns:
data as uint

Implements Protocols.

Definition at line 181 of file SPI8.cpp.

void wr_cmd16 ( unsigned short  cmd ) [protected, virtual]

Send 2x8bit command to display controller.

Parameters:
cmd,:halfword to send

Implements Protocols.

Definition at line 60 of file SPI8.cpp.

void wr_cmd8 ( unsigned char  cmd ) [protected, virtual]

Send 8bit command to display controller.

Parameters:
cmd,:byte to send

Implements Protocols.

Definition at line 35 of file SPI8.cpp.

void wr_data16 ( unsigned short  data ) [protected, virtual]

Send 2x8bit data to display controller.

Parameters:
data,:halfword to send

Implements Protocols.

Definition at line 72 of file SPI8.cpp.

void wr_data8 ( unsigned char  data ) [protected, virtual]

Send 8bit data to display controller.

Parameters:
data,:byte to send

Implements Protocols.

Definition at line 46 of file SPI8.cpp.

void wr_gram ( unsigned short  data ) [protected, virtual]

Send 16bit pixeldata to display controller.

Parameters:
data,:halfword to send

Implements Protocols.

Definition at line 87 of file SPI8.cpp.

void wr_gram ( unsigned short  data,
unsigned int  count 
) [protected, virtual]

Send same 16bit pixeldata to display controller multiple times.

Parameters:
data,:halfword to send
count,:how many

Implements Protocols.

Definition at line 103 of file SPI8.cpp.

void wr_grambuf ( unsigned short *  data,
unsigned int  lenght 
) [protected, virtual]

Send array of pixeldata shorts to display controller.

Parameters:
data,:unsigned short pixeldata array
lenght,:lenght (in shorts)

Implements Protocols.

Definition at line 136 of file SPI8.cpp.