st7789

package
v0.0.0-...-e7f0a1f Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jun 20, 2024 License: BSD-2-Clause, BSD-3-Clause Imports: 16 Imported by: 0

Documentation

Index

Constants

View Source 
const (

	// System function comand table 1
	NOP       = 0x00
	SWRESET   = 0x01
	RDDID     = 0x04
	RDDST     = 0x09
	RDDPM     = 0x0A
	RDDMADCTL = 0x0B
	RDDCOLMOD = 0x0C
	DDDIM     = 0x0D
	RDDSM     = 0x0E
	RDDSDR    = 0x0F
	SLPIN     = 0x10
	SLPOUT    = 0x11
	PTLON     = 0x12
	NORON     = 0x13
	INVOFF    = 0x20
	INVON     = 0x21
	GAMSET    = 0x26
	DISPOFF   = 0x28
	DISPON    = 0x29
	CASET     = 0x2A
	RASET     = 0x2B
	RAMWR     = 0x2C
	RAMRD     = 0x2E
	PTLAR     = 0x30
	VSCRDEF   = 0x33
	TEOFF     = 0x34
	TEON      = 0x35
	MADCTL    = 0x36
	VSCSAD    = 0x37
	IDMOFF    = 0x38
	IDMON     = 0x39
	COLMOD    = 0x3A
	WRMEMC    = 0x3C
	RDMEMC    = 0x3E
	STE       = 0x44
	GSCAN     = 0x45
	WRDISBV   = 0x51
	RDDISBV   = 0x52
	WRTCTRLD  = 0x53
	RDCTRLD   = 0x54
	WRCACE    = 0x55
	RDCABC    = 0x56
	WRCABCMB  = 0x5E
	RDCABCMB  = 0x5F
	RDABCSDR  = 0x68
	RDID1     = 0xDA
	RDID2     = 0xDB
	RDID3     = 0xDC

	// System function comand table 1
	RAMCTRL   = 0xB0
	RGBCTRL   = 0xB1
	PORCTRL   = 0xB2
	FRCTRL1   = 0xB3
	PARCTRL   = 0xB5
	GCTRL     = 0xB7
	GTADJ     = 0xB8
	DGMEM     = 0xBA
	VCOMS     = 0xBB
	LCMCTRL   = 0xC0
	IDSET     = 0xC1
	VDVVRHEN  = 0xC2
	VRHS      = 0xC3
	VDVS      = 0xC4
	VCMOFSET  = 0xC5
	FRCTRL2   = 0xC6
	CABCCTRL1 = 0xC7
	REGSEL1   = 0xC8
	REGSEL2   = 0xCA
	PWMFRSEL  = 0xCC
	PWCTRL1   = 0xD0
	VAPVANEN  = 0xD2
	CMD2EN    = 0xDF
	PVGAMCTRL = 0xE0
	NVGAMCTRL = 0xE1
	DGMLUTR   = 0xE2
	DGMLUTB   = 0xE3
	GATECTRL  = 0xE4
	SPI2EN    = 0xE7
	PWCTRL2   = 0xE8
	EQCTRL    = 0xE9
	PROMCTRL  = 0xEC
	PROMEN    = 0xFA
	NVMSET    = 0xFC
	PROMACT   = 0xFE

	BG_SPI_CS_BACK  = 0
	BG_SPI_CS_FRONT = 1

	// VDVVRHEN bits
	VDVVRHEN_CMDEN_NVM   = 0x00 // VDV and VRH register value comes from NVM
	VDVVRHEN_CMDEN_WRITE = 0x01 // VDV and VRH register value comes from command write

	// Color mode bits
	COLMOD_RGB_65K   = 0x50 // 16-bit color
	COLMOD_RGB_262K  = 0x60 // 18-bit color
	COLMOD_CTRL_4K   = 0x03 // 12-bit color
	COLMOD_CTRL_65K  = 0x05 // 16-bit color
	COLMOD_CTRL_262K = 0x06 // 18-bit color
	COLMOD_CTRL_16M  = 0x07 // truncates to 18 bits

	// Allowable frame rate codes for FRCTRL2 (Identifier is in Hz)
	FRAMERATE_119 = 0x00
	FRAMERATE_111 = 0x01
	FRAMERATE_105 = 0x02
	FRAMERATE_99  = 0x03
	FRAMERATE_94  = 0x04
	FRAMERATE_90  = 0x05
	FRAMERATE_86  = 0x06
	FRAMERATE_82  = 0x07
	FRAMERATE_78  = 0x08
	FRAMERATE_75  = 0x09
	FRAMERATE_72  = 0x0A
	FRAMERATE_69  = 0x0B
	FRAMERATE_67  = 0x0C
	FRAMERATE_64  = 0x0D
	FRAMERATE_62  = 0x0E
	FRAMERATE_60  = 0x0F
	FRAMERATE_58  = 0x10
	FRAMERATE_57  = 0x11
	FRAMERATE_55  = 0x12
	FRAMERATE_53  = 0x13
	FRAMERATE_52  = 0x14
	FRAMERATE_50  = 0x15
	FRAMERATE_49  = 0x16
	FRAMERATE_48  = 0x17
	FRAMERATE_46  = 0x18
	FRAMERATE_45  = 0x19
	FRAMERATE_44  = 0x1A
	FRAMERATE_43  = 0x1B
	FRAMERATE_42  = 0x1C
	FRAMERATE_41  = 0x1D
	FRAMERATE_40  = 0x1E
	FRAMERATE_39  = 0x1F

	// LCMCTRL bits
	LCMCTRL_XMY  = 0x40 // XOR MY setting in MADCTL
	LCMCTRL_XBGR = 0x20 // XOR RGB setting in MADCTL
	LCMCTRL_XREV = 0x10 // XOR inverse setting in INVON
	LCMCTRL_XMH  = 0x08 // Reverse source output order and only support RGB interface without RAM mode
	LMCTRL_XMV   = 0x04 // XOR MV setting in MADCTL
	LMCTRL_XMX   = 0x02 // XOR MX setting in MADCTL
	LMCTRL_XGS   = 0x01 // XOR GS setting in GATECTRL

	// MADCTL bits
	MADCTL_MY_TB   = 0x00 // Page address order top to bottom
	MADCTL_MY_BT   = 0x80 // Page address order bottom to top
	MADCTL_MX_LR   = 0x00 // Column address order left to right
	MADCTL_MX_RL   = 0x40 // Column address order right to left
	MADCTL_MV_NORM = 0x00 // Page/column order normal
	MADCTL_MV_REV  = 0x20 // Page/column order reverse
	MADCTL_ML_TB   = 0x00 // Line address order LCD refresh top to bottom
	MADCTL_ML_BT   = 0x10 // Line address order LCD refresh bottom to top
	MADCTL_RGB     = 0x00 // RGB order
	MADCTL_BGR     = 0x08 // BGR order
	MADCTL_MH_LR   = 0x00 // Display latch order LCD refresh left to right
	MADCTL_MH_RL   = 0x04 // Display latch order LCD refresh right to left

	MAX_VSYNC_SCANLINES = 254

	ROTATION_NONE Rotation = 0
	ROTATION_90   Rotation = 1
	ROTATION_180  Rotation = 2
	ROTATION_270  Rotation = 3

	SPI_CLOCK_HZ = 16000000
)

Variables

View Source 
var DefaultOpts = Opts{
	Width:    240,
	Height:   240,
	Rotation: ROTATION_NONE,
}

DefaultOpts is the recommended default options.

Functions

func RGBATo565 

func RGBATo565(c color.RGBA) uint16

RGBATo565 converts a color.RGBA to uint16 used in the display (bits r:5, g:6, b:5)

Types

type Device 

type Device struct {
	// contains filtered or unexported fields
}

func NewSPI 

func NewSPI(port spi.Port, dataComm gpio.PinOut, opts *Opts) (*Device, error)

func (*Device) Bounds 

func (d *Device) Bounds() image.Rectangle

Bounds implements display.Drawer. Min is guaranteed to be {0, 0}.

func (*Device) Command 

func (d *Device) Command(cmd uint8)

Command sends a command to the device

func (*Device) Data 

func (d *Device) Data(data uint8)

Data sends data to the device

func (*Device) DrawFastHLine 

func (d *Device) DrawFastHLine(x0, x1, y int16, c color.RGBA)

DrawFastHLine draws a horizontal line faster than using SetPixel

func (*Device) DrawFastVLine 

func (d *Device) DrawFastVLine(x, y0, y1 int16, c color.RGBA)

DrawFastVLine draws a vertical line faster than using SetPixel

func (*Device) DrawImage 

func (d *Device) DrawImage(reader io.Reader)

func (*Device) DrawRAW 

func (d *Device) DrawRAW(img image.Image)

func (*Device) FillRectangle 

func (d *Device) FillRectangle(x, y, width, height int16, c color.RGBA) error

FillRectangle fills a rectangle at a given coordinates with a color

func (*Device) FillScreen 

func (d *Device) FillScreen(c color.RGBA)

FillScreen fills the screen with a given color

func (*Device) Invert 

func (d *Device) Invert(blackOnWhite bool)

Invert the display (black on white vs white on black).

func (*Device) InvertColors 

func (d *Device) InvertColors(invert bool)

InverColors inverts the colors of the screen

func (*Device) IsBGR 

func (d *Device) IsBGR(bgr bool)

IsBGR changes the color mode (RGB/BGR)

func (*Device) PixelCount 

func (d *Device) PixelCount() uint32

PixelCount returns the number of pixels in the display

func (*Device) PowerOff 

func (d *Device) PowerOff() error

PowerOff the display

func (*Device) PowerOn 

func (d *Device) PowerOn() error

PowerOn the display

func (*Device) SendCommand 

func (d *Device) SendCommand(c []byte) error

func (*Device) SendData 

func (d *Device) SendData(c []byte) error

func (*Device) SetPixel 

func (d *Device) SetPixel(x int16, y int16, c color.RGBA)

SetPixel sets a pixel in the screen

func (*Device) SetRotation 

func (d *Device) SetRotation(rotation Rotation)

SetRotation changes the rotation of the device (clock-wise)

func (*Device) SetWindow 

func (d *Device) SetWindow()

func (*Device) Size 

func (d *Device) Size() (int16, int16)

Size returns the current size of the display.

func (*Device) String 

func (d *Device) String() string

type Opts 

type Opts struct {
	Width    int16
	Height   int16
	Rotation Rotation
}

Opts defines the options for the device.

type Rotation 

type Rotation uint8

Source Files

View all Source files

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