UniGraphic-Fork for ST7920-LCD-controller and SH1106.
Tested with 128x64 LCD with SPI and 128x64-OLED with IIC
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Protocols Class Reference
Abstract interface class for spi and parallel protocols.
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#include <Protocols.h >
Inherited by BUS16 , BUS8 , I2C_bus , PAR16 , PAR8 , SPI16 , and SPI8 .
virtual void wr_cmd8 (unsigned char cmd)=0 Send 8bit command to display controller. virtual void wr_data8 (unsigned char data)=0 Send 8bit data to display controller. virtual void wr_cmd16 (unsigned short cmd)=0 Send 2x8bit command to display controller. virtual void wr_data16 (unsigned short data)=0 Send 2x8bit data to display controller. virtual void wr_gram (unsigned short data)=0 Send 16bit pixeldata to display controller. virtual void wr_gram (unsigned short data, unsigned int count)=0 Send same 16bit pixeldata to display controller multiple times. virtual void wr_grambuf (unsigned short *data, unsigned int lenght)=0 Send array of pixeldata shorts to display controller. virtual unsigned short rd_gram (bool convert)=0 Read 16bit pixeldata from display controller (with dummy cycle) virtual unsigned int rd_reg_data32 (unsigned char reg)=0 Read 4x8bit register data (with dummy cycle) virtual unsigned int rd_extcreg_data32 (unsigned char reg, unsigned char SPIreadenablecmd)=0 Read 3x8bit ExtendedCommands register data. virtual void dummyread ()=0 ILI932x specific, does a dummy read cycle, number of bits is protocol dependent for PAR protocols: a signle RD bit toggle for SPI8 : 8clocks for SPI16 : 16 clocks. virtual void reg_select (unsigned char reg, bool forread=false)=0 ILI932x specific, select register for a successive write or read. virtual void reg_write (unsigned char reg, unsigned short data)=0 ILI932x specific, write register with data. virtual unsigned short reg_read (unsigned char reg)=0 ILI932x specific, read register. virtual void hw_reset ()=0 HW reset sequence (without display init commands) virtual void BusEnable (bool enable)=0 Set ChipSelect high or low.
Detailed Description
Abstract interface class for spi and parallel protocols.
Definition at line 49 of file Protocols.h .
Member Function Documentation
virtual void BusEnable
(
bool
enable )
[pure virtual]
virtual void dummyread
(
)
[pure virtual]
virtual void hw_reset
(
)
[pure virtual]
virtual unsigned int rd_extcreg_data32
(
unsigned char
reg ,
unsigned char
SPIreadenablecmd
)
[pure virtual]
Read 3x8bit ExtendedCommands register data.
Parameters:
reg the register to read SPIreadenablecmd vendor/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 Implemented in BUS16 , BUS8 , I2C_bus , PAR16 , PAR8 , SPI16 , and SPI8 .
virtual unsigned short rd_gram
(
bool
convert )
[pure virtual]
Read 16bit pixeldata from display controller (with dummy cycle)
Parameters:
convert true/false. Convert 18bit to 16bit, some controllers returns 18bit
Returns: 16bit color Implemented in BUS16 , BUS8 , I2C_bus , PAR16 , PAR8 , SPI16 , and SPI8 .
virtual unsigned int rd_reg_data32
(
unsigned char
reg )
[pure virtual]
virtual unsigned short reg_read
(
unsigned char
reg )
[pure virtual]
virtual void reg_select
(
unsigned char
reg ,
bool
forread = false
)
[pure virtual]
ILI932x specific, select register for a successive write or read.
Parameters:
reg register to be selected forread false = a write next (default), true = a read next
Note: forread only used by SPI protocols Implemented in BUS16 , BUS8 , I2C_bus , PAR16 , PAR8 , SPI16 , and SPI8 .
virtual void reg_write
(
unsigned char
reg ,
unsigned short
data
)
[pure virtual]
virtual void wr_cmd16
(
unsigned short
cmd )
[pure virtual]
virtual void wr_cmd8
(
unsigned char
cmd )
[pure virtual]
virtual void wr_data16
(
unsigned short
data )
[pure virtual]
virtual void wr_data8
(
unsigned char
data )
[pure virtual]
virtual void wr_gram
(
unsigned short
data )
[pure virtual]
virtual void wr_gram
(
unsigned short
data ,
unsigned int
count
)
[pure virtual]
Send same 16bit pixeldata to display controller multiple times.
Parameters:
data,: halfword to send count,: how many
Implemented in BUS16 , BUS8 , I2C_bus , PAR16 , PAR8 , SPI16 , and SPI8 .
virtual void wr_grambuf
(
unsigned short *
data ,
unsigned int
lenght
)
[pure virtual]
Send array of pixeldata shorts to display controller.
Parameters:
data,: unsigned short pixeldata array lenght,: lenght (in shorts)
Implemented in BUS16 , BUS8 , I2C_bus , PAR16 , PAR8 , SPI16 , and SPI8 .
Karl Zweimüller
GraphicsDisplay
1.7.2