ILI9326 Controllers

This section covers GLCD devices that use the ILI9326 graphics controller. The ILI9326 is a TFT LCD Single Chip Driver with 400RGBx320 Resolution and 262K colors.

GCBASIC supports 65K-color mode operations.

The GCBASIC constants shown below control the configuration of the ILI9326 controller.    GCBASIC supports 8 bit bus connectivity - this is shown in the tables below.

To use the ILI9326 driver simply include the following in your user code. This will initialise the driver.

    #include <glcd.h>
    #DEFINE GLCD_TYPE GLCD_TYPE_ILI9326

    'Pin mappings for ILI9326 - these MUST be specified
    #define GLCD_RD       porta.3        ' read command line
    #define GLCD_WR       porta.2         ' write command line
    #define GLCD_RS       porta.1         ' Command/Data line
    #define GLCD_CS       porta.0         ' Chip select line
    #define GLCD_RST      porta.5         ' Reset line
    #define GLCD_DataPort portD

The GCBASIC constants for the interface to the controller are shown in the table below.

Constants Controls Options

GLCD_TYPE

GLCD_TYPE_ILI9326

  

GLCD_RD

Specifies the output pin that is connected to RD IO pin on the GLCD.

Required

GLCD_WR

Specifies the output pin that is connected to WR on the GLCD.

Required

GLCD_RS

Specifies the output pin that is connected to RS pin on the GLCD.

Required

GLCD_CS

Specifies the output pin that is connected to CS pin on the GLCD.

Required

GLCD_RST

Specifies the output pin that is connected to RST pin on the GLCD.

Required

GLCD_DataPort

Specifies the output port that is connected to DB0 to DB7 pins on the GLCD.

Required

The GCBASIC constants for control display characteristics are shown in the table below.

Constants Controls Default

GLCD_WIDTH

The width parameter of the GLCD

320

GLCD_HEIGHT

The height parameter of the GLCD

240

GLCDFontWidth

Specifies the font width of the GCBASIC font set.

6 for GCB fonts, and 5 for OLED fonts.

GLCD_OLED_FONT

Specifies the use of the optional OLED font set.

The GLCDfntDefaultsize can be set to 1 or 2 only.

GLCDfntDefaultsize= 1. A small 8 height pixel font with variable width. GLCDfntDefaultsize= 2. A larger 10 width * 16 height pixel font.

Optional

The GCBASIC commands supported for this GLCD are shown in the table below.   Always review the appropiate library for the latest full set of supported commands.

Command Purpose Example

GLCDCLS

Clear screen of GLCD

GLCDCLS [,Optional LineColour]

GLCDPrint

Print string of characters on GLCD using GCB font set

GLCDPrint( Xposition, Yposition, Stringvariable )

GLCDDrawChar

Print character on GLCD using GCB font set

GLCDDrawChar( Xposition, Yposition, CharCode [,Optional LineColour] )

GLCDDrawString

Print characters on GLCD using GCB font set

GLCDDrawString( Xposition, Yposition, Stringvariable [,Optional LineColour] )

Box

Draw a box on the GLCD to a specific size

Box ( Xposition1, Yposition1, Xposition2, Yposition2 [,Optional LineColour]

FilledBox

Draw a box on the GLCD to a specific size that is filled with the foreground colour.

FilledBox (Xposition1, Yposition1, Xposition2, Yposition2 [,Optional LineColour] )

Line

Draw a line on the GLCD to a specific length that is filled with the specific attribute.

Line ( Xposition1, Yposition1, Xposition2, Yposition2 [,Optional LineColour] )

PSet

Set a pixel on the GLCD at a specific position that is set with the specific attribute.

PSet(Xposition, Yposition, Pixel Colour)

GLCDWriteByte

Set a byte value to the controller, see the datasheet for usage.

GLCDWriteByte ( LCDByte)

GLCDReadByte

Read a byte value from the controller, see the datasheet for usage.

bytevariable = GLCDReadByte

GLCDRotate

Rotate the display

LANDSCAPE, PORTRAIT_REV, LANDSCAPE_REV and PORTRAIT are supported

ILI9326_[color]

Specify color as a parameter for many GLCD commands

Color constants for this device are shown in the list below.

 
    ILI9326_BLACK   'hexidecimal value 0x0000
    ILI9326_RED     'hexidecimal value 0xF800
    ILI9326_GREEN   'hexidecimal value 0x07E0
    ILI9326_BLUE    'hexidecimal value 0x001F
    ILI9326_WHITE   'hexidecimal value 0xFFFF
    ILI9326_PURPLE  'hexidecimal value 0xF11F
    ILI9326_YELLOW  'hexidecimal value 0xFFE0
    ILI9326_CYAN    'hexidecimal value 0x07FF
    ILI9326_D_GRAY  'hexidecimal value 0x528A
    ILI9326_L_GRAY  'hexidecimal value 0x7997
    ILI9326_SILVER  'hexidecimal value 0xC618
    ILI9326_MAROON  'hexidecimal value 0x8000
    ILI9326_OLIVE   'hexidecimal value 0x8400
    ILI9326_LIME    'hexidecimal value 0x07E0
    ILI9326_AQUA    'hexidecimal value 0x07FF
    ILI9326_TEAL    'hexidecimal value 0x0410
    ILI9326_NAVY    'hexidecimal value 0x0010
    ILI9326_FUCHSIA 'hexidecimal value 0xF81F

For a ILI9326 datasheet, please refer to Google.

This example shows how to drive a ILI9326 based Graphic LCD module with the built in commands of GCBASIC.

Example #1

    ;Chip Settings
    #chip 16F1789,32

    #config MCLRE=on
    #option explicit
    #include <glcd.h>
    #define GLCD_TYPE GLCD_TYPE_ILI9326

    #define GLCD_RD       porta.3        ' read command line
    #define GLCD_WR       porta.2         ' write command line
    #define GLCD_RS       porta.1         ' Command/Data line
    #define GLCD_CS       porta.0         ' Chip select line
    #define GLCD_RST      porta.5         ' Reset line
    #define GLCD_DataPort portD

    GLCDPrint(0, 0, "Test of the ILI9326 Device")
    end


Example #2 This example shows how to drive a ILI3941 with the OLED fonts. Note the use of the GLCDfntDefaultSize to select the size of the OLED font in use. 

  'Chip Settings
    #chip 16F1789,32

    #config MCLRE=on
    #option explicit
    #include <glcd.h>
    #define GLCD_TYPE GLCD_TYPE_ILI9326

    #define GLCD_RD       porta.3        ' read command line
    #define GLCD_WR       porta.2         ' write command line
    #define GLCD_RS       porta.1         ' Command/Data line
    #define GLCD_CS       porta.0         ' Chip select line
    #define GLCD_RST      porta.5         ' Reset line
    #define GLCD_DataPort portD

    #define GLCD_OLED_FONT                'The constant is required to support OLED fonts

    GLCDfntDefaultSize = 2
    GLCDFontWidth = 5
    GLCDPrint ( 40, 0, "OLED" )
    GLCDPrint ( 0, 18, "Typ:  ILI9326" )
    GLCDPrint ( 0, 34, "Size: 400 x 240" )

    GLCDfntDefaultSize = 1
    GLCDPrint(20, 56,"https://goo.gl/gjrxkp")


For more help, see GLCDCLS, GLCDDrawChar, GLCDPrint, GLCDReadByte, GLCDWriteByte or Pset

Supported in <GLCD.H>

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