Detailed Description

Author: Koen Zandberg koen@.nosp@m.berg.nosp@m.zand..nosp@m.net; Francisco Molina franc.nosp@m.ois-.nosp@m.xavie.nosp@m.r.mo.nosp@m.lina@.nosp@m.inri.nosp@m.a.fr; Gunar Schorcht gunar.nosp@m.@sch.nosp@m.orcht.nosp@m..net

Definition in file st77xx.h.

#include "lcd.h"

Include dependency graph for st77xx.h:

Data Structures
struct	st77xx_t
	Device descriptor for a ST77xx display. More...

Macros
#define	CONFIG_ST7735_CUSTOM_CONFIG 0
	ST7735 Customized Configuration Enable.

#define	CONFIG_ST7735_AVDD 4900
	ST7735 AVDD voltage (in millivolts)

#define	CONFIG_ST7735_GVDD 4600
	ST7735 GVDD voltage (in millivolts)

#define	CONFIG_ST7735_GVCL -4600
	ST7735 GVL voltage (in millivolts)

#define	CONFIG_ST7735_VCOM -775
	ST7735 VCOM voltage (in millivolts)

#define	CONFIG_ST7735_VGH 14700
	ST7735 VGH voltage (in millivolts)

#define	CONFIG_ST7735_VGL -10000
	ST7735 VGL voltage (in millivolts)

#define	CONFIG_ST7789_CUSTOM_CONFIG 0
	ST7789 Customized Configuration Enable.

#define	CONFIG_ST7789_AVDD 6800
	ST7789 AVDD voltage (in millivolts)

#define	CONFIG_ST7789_AVCL -4800
	ST7789 AVCL voltage (in millivolts)

#define	CONFIG_ST7789_VCOM 900
	ST7789 VCOM voltage (in millivolts)

#define	CONFIG_ST7789_VCOM_OFFSET 0
	ST7789 VCOM voltage offset (in millivolts)

#define	CONFIG_ST7789_VDV 0
	ST7789 VDV voltage (in millivolts)

#define	CONFIG_ST7789_VRH 4100
	ST7789 VRH voltage (in millivolts)

#define	CONFIG_ST7796_CUSTOM_CONFIG 0
	ST7796 Customized Configuration Enable.

#define	CONFIG_ST7796_AVDD 6600
	ST7796 AVDD voltage (in millivolts)

#define	CONFIG_ST7796_AVCL -4400
	ST7796 AVCL voltage (in millivolts)

#define	CONFIG_ST7796_VCOM 1000
	ST7796 VCOM voltage (in millivolts)

#define	CONFIG_ST7796_VCOM_OFFSET 0
	ST7796 VCOM voltage offset (in millivolts)

#define	CONFIG_ST7796_VRH 4100
	ST7796 VRH voltage (in millivolts)

Enumerations
enum	{ ST77XX_CNTRL_ST7735 , ST77XX_CNTRL_ST7789 , ST77XX_CNTRL_ST7796 }
	ST77xx display controller variants. More...

Variables
const lcd_driver_t	lcd_st77xx_driver
	LCD device operations table.

ST77xx display rotation modes
Note Using a rotation mode may require the definition of ST77XX_PARAM_OFFSET_X or ST77XX_PARAM_OFFSET_Y. Usually the dimension of an LCD is defined by W x H (width x height) in pixels, where width is the smaller dimension than height, e.g. 240 x 320 (W x H). The height is then used as parameter ST77XX_PARAM_NUM_LINES and the width as parameter ST77XX_PARAM_RGB_CHANNELS. So vertical orientation means no rotation. Vertical orientation is given when the connector is shown at the bottom of the display. For example, the ST7789 controller supports 320 gate outputs and 240 source outputs (RGB channels). A display with a size of 240 x 320 (W x H) pixels can be used by setting `ST77XX_PARAM_NUM_LINES=320` and `ST77XX_PARAM_RGB_CHANNELS=240`. However, if the ST7789 is used with a display of 240 x 240 (W x H) pixels and a rotation is used, an offset must be defined for X or Y because the origin of the image will change. For example, in the case of ST77XX_ROTATION_90 an offset for X would have to be defined by `ST77XX_PARAM_OFFSET_X=80` and in the case of ST77XX_ROTATION_180 an offset for Y would have to be defined by `ST77XX_PARAM_OFFSET_X=80`. Using the correct offset on rotation can be even more difficult if the display size in both dimensions is smaller than the size supported by the controller. In this case, the origin can deviate from 0, 0 even without rotation.
#define	ST77XX_ROTATION_VERT 0
	Vertical mode.

#define	ST77XX_ROTATION_VERT_FLIP
	Flipped vertical.

#define	ST77XX_ROTATION_HORZ
	Horizontal mode.

#define	ST77XX_ROTATION_HORZ_FLIP
	Horizontal flipped.

#define	ST77XX_ROTATION_0 0
	0 deg counterclockwise

#define	ST77XX_ROTATION_90
	90 deg counterclockwise

#define	ST77XX_ROTATION_180
	180 deg counterclockwise

#define	ST77XX_ROTATION_270
	270 deg counterclockwise

Detailed Description

Data Structures

Macros

Enumerations

Variables

ST77xx display rotation modes