Unit ILI9340

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Description

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The ILITEK ILI9340 is a 240x320 Resolution RGB 262K color TFT LCD Single Chip Driver that supports color depths of 16 or 18bit. This driver supports the chip only in 16 bit depth using RGB565 format.

The chip provides an SPI interface at up to 32MHz and supports rotations of 0, 90, 180 and 270 degrees.

Constants

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To be documented

Type definitions

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To be documented

Public variables

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To be documented

Function declarations

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ILI9340 functions

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function ILI9340FramebufferCreate(SPI:PSPIDevice; ChipSelect:Word; const Name:String; Rotation,Width,Height:LongWord; RST,DC,BL:PGPIOInfo):PFramebufferDevice;

Description: Create, register and allocate a new ILI9340 Framebuffer device which can be accessed using the framebuffer API

SPI	The SPI device that this ILI9340 is connected to
ChipSelect	The SPI chip select to use when communicating with this device
Name	The text description of this device which will should in the device list (Optional)
Rotation	The rotation value for the framebuffer device (eg FRAMEBUFFER_ROTATION_180)
Width	The width of the framebuffer in pixels
Height	The height of the framebuffer in pixels
RST	GPIO pin information for the Reset pin (Optional)
DC	GPIO pin information for the Data/Command pin
BL	GPIO pin information for the Backlight pin (Optional)
Return	Pointer to the new Framebuffer device or nil if the framebuffer device could not be created

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function ILI9340FramebufferDestroy(Framebuffer:PFramebufferDevice):LongWord;

Description: Release, deregister and destroy an ILI9340 Framebuffer device created by this driver

Framebuffer	The Framebuffer device to destroy
Return	ERROR_SUCCESS if completed or another error code on failure

ILI9340 framebuffer functions

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function ILI9340FramebufferBlank(Framebuffer:PFramebufferDevice; Blank:Boolean):LongWord;

Description: Implementation of FramebufferDeviceBlank API for ILI9340

Note	Not intended to be called directly by applications, use FramebufferDeviceBlank instead

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function ILI9340FramebufferSetBacklight(Framebuffer:PFramebufferDevice; Brightness:LongWord):LongWord;

Description: Implementation of FramebufferDeviceSetBacklight API for ILI9340

Note	Not intended to be called directly by applications, use FramebufferDeviceSetBacklight instead

ILI9340 TFT framebuffer functions

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function ILI9340TFTFramebufferInitialize(Framebuffer:PTFTFramebuffer; Defaults:PFramebufferProperties):LongWord;

Description: Implementation of TFTFramebufferInitialize API for ILI9340

Note	Not intended to be called directly by applications

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function ILI9340TFTFramebufferDeinitialize(Framebuffer:PTFTFramebuffer):LongWord;

Description: Implementation of TFTFramebufferDeinitialize API for ILI9340

Note	Not intended to be called directly by applications

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function ILI9340TFTFramebufferGetDefaults(Framebuffer:PTFTFramebuffer; Properties,Defaults:PFramebufferProperties):LongWord;

Description: Implementation of TFTFramebufferGetDefaults API for ILI9340

Note	Not intended to be called directly by applications

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function ILI9340TFTFramebufferSetWriteAddress(Framebuffer:PTFTFramebuffer; X1,Y1,X2,Y2:LongWord):LongWord;

Description: Implementation of TFTFramebufferSetWriteAddress API for ILI9340

Note	Not intended to be called directly by applications

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function ILI9340TFTFramebufferWriteMemory(Framebuffer:PTFTFramebuffer; Address,Size:LongWord):LongWord;

Description: Implementation of TFTFramebufferWriteMemory API for ILI9340

Note	Not intended to be called directly by applications

ILI9340 helper functions

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function ILI9340WriteCommand(Framebuffer:PTFTFramebuffer; Value:Byte):LongWord;

Description: Write a single command value to the ILI9340

Note	None documented

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function ILI9340WriteCommandEx(Framebuffer:PTFTFramebuffer; const Values:array of Byte):LongWord;

Description: Write multiple command values to the ILI9340

Note	None documented

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function ILI9340WriteData(Framebuffer:PTFTFramebuffer; Value:Byte):LongWord;

Description: Write a single data value to the ILI9340

Note	None documented

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function ILI9340WriteDataEx(Framebuffer:PTFTFramebuffer; const Values:array of Byte):LongWord;

Description: Write multiple data values to the ILI9340

Note	None documented

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