Class Gdew0154m09

Namespace

Iot.Device.EPaper.Drivers.Jd796xx

Assembly

Iot.Device.ePaper.dll

A driver class for the GDEW0154M09 display controller.

public class Gdew0154m09 : Jd79653A, IEPaperDisplay

Inheritance

object

Jd79653A

Gdew0154m09

Implements

IEPaperDisplay

Inherited Members

Jd79653A.SpiClockFrequency

Jd79653A.SpiMode

Jd79653A.BeginFrameDraw()

Jd79653A.CalculateFrameBufferPageBounds()

Jd79653A.Clear(bool)

Jd79653A.DirectDrawBuffer(params byte[])

Jd79653A.DrawPixel(int, int, bool)

Jd79653A.DrawPixel(int, int, Color)

Jd79653A.EndFrameDraw()

Jd79653A.EnforceBounds(ref int, ref int)

Jd79653A.Flush()

Jd79653A.GetFrameBufferIndex(int, int)

Jd79653A.GetXPositionFromFrameBufferIndex(int)

Jd79653A.GetYPositionFromFrameBufferIndex(int)

Jd79653A.HardwareReset()

Jd79653A.Initialize()

Jd79653A.InitializeFrameBuffer(int, int, bool)

Jd79653A.NextFramePage()

Jd79653A.PerformFullRefresh()

Jd79653A.PerformPartialRefresh()

Jd79653A.PowerDown(SleepMode)

Jd79653A.PowerOn()

Jd79653A.SendCommand(params byte[])

Jd79653A.SendData(params byte[])

Jd79653A.SendData(params ushort[])

Jd79653A.SetFrameBufferPage(int)

Jd79653A.SetPosition(int, int)

Jd79653A.SoftwareReset()

Jd79653A.WaitMs(int)

Jd79653A.WaitReady(CancellationToken)

Jd79653A.Dispose()

Jd79653A.Width

Jd79653A.Height

Jd79653A.FrameBuffer

Jd79653A.PagedFrameDrawEnabled

Jd79653A.PowerState

Jd79653A.CurrentFrameBufferPage

Jd79653A.CurrentFrameBufferPageLowerBound

Jd79653A.CurrentFrameBufferPageUpperBound

Jd79653A.CurrentFrameBufferStartXPosition

Jd79653A.CurrentFrameBufferStartYPosition

Jd79653A.FrameBuffer1bpp

Jd79653A.FirstPageIndex

Constructors

Gdew0154m09(SpiDevice, int, int, int, GpioController, bool, bool)

Initializes a new instance of the Gdew0154m09 class.

public Gdew0154m09(SpiDevice spiDevice, int resetPin, int busyPin, int dataCommandPin, GpioController gpioController = null, bool enableFramePaging = false, bool shouldDispose = true)

Parameters

spiDevice SpiDevice

The communication channel to the GDEW0154M09-based dispay.

resetPin int

The reset GPIO pin. Passing an invalid pin number such as -1 will prevent this driver from opening the pin. Caller should handle hardware resets.

busyPin int

The busy GPIO pin.

dataCommandPin int

The data/command GPIO pin.

gpioController GpioController

The GpioController to use when initializing the pins.

enableFramePaging bool

Page the frame buffer and all operations to use less memory.

shouldDispose bool

True to dispose the Gpio Controller.

Remarks

For a 200x200 GDEW0154M09 display, a full Frame requires about 5KB of RAM ((200 * 200) / 8). If you can't guarantee 5KB to be available to the driver then enable paging by setting enableFramePaging to true. A page uses about 1KB (5KB / PagesPerFrame).

Exceptions

ArgumentNullException

spiDevice is null.

ArgumentOutOfRangeException

Display width and height can't be less than 0 or greater than 200.

Properties

PagesPerFrame

Gets the number of pages in every frame buffer.

protected override int PagesPerFrame { get; }

Property Value

int