芭蕉葉上聽雨聲: [TFT] 圓形TFT GC9A01指令摘要

本文只是作為暫時的筆記!

想了解 GC9A01 有哪些繪圖指令，可以參考 Adafruit_GC9A01A 的 graphicstest.ino 。

#include "SPI.h"

#include "Adafruit_GFX.h"

#include "Adafruit_GC9A01A.h"

#define TFT_DC 9

#define TFT_CS 10

// Hardware SPI on Feather or other boards

Adafruit_GC9A01A tft(TFT_CS, TFT_DC);

void setup() {

tft.begin();

}

螢幕屬性

tft.width(); //取得螢幕寬度

tft.height(); //取得螢幕高度

tft.setRotation(uint8_t r); //旋轉螢幕 r=0~3


	tft.invertDisplay(bool i); // 螢幕反色

	tft.setAddrWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h);

調色

tft.color565(i, i, i);

顏色定義

// Color definitions
	#define GC9A01A_BLACK 0x0000 ///< 0, 0, 0
	#define GC9A01A_NAVY 0x000F ///< 0, 0, 123
	#define GC9A01A_DARKGREEN 0x03E0 ///< 0, 125, 0
	#define GC9A01A_DARKCYAN 0x03EF ///< 0, 125, 123
	#define GC9A01A_MAROON 0x7800 ///< 123, 0, 0
	#define GC9A01A_PURPLE 0x780F ///< 123, 0, 123
	#define GC9A01A_OLIVE 0x7BE0 ///< 123, 125, 0
	#define GC9A01A_LIGHTGREY 0xC618 ///< 198, 195, 198
	#define GC9A01A_DARKGREY 0x7BEF ///< 123, 125, 123
	#define GC9A01A_BLUE 0x001F ///< 0, 0, 255
	#define GC9A01A_GREEN 0x07E0 ///< 0, 255, 0
	#define GC9A01A_CYAN 0x07FF ///< 0, 255, 255
	#define GC9A01A_RED 0xF800 ///< 255, 0, 0
	#define GC9A01A_MAGENTA 0xF81F ///< 255, 0, 255
	#define GC9A01A_YELLOW 0xFFE0 ///< 255, 255, 0
	#define GC9A01A_WHITE 0xFFFF ///< 255, 255, 255
	#define GC9A01A_ORANGE 0xFD20 ///< 255, 165, 0
	#define GC9A01A_GREENYELLOW 0xAFE5 ///< 173, 255, 41
	#define GC9A01A_PINK 0xFC18 ///< 255, 130, 198

#define WHITE            0xFFFF
#define BLACK            0x0000   
#define BLUE             0x001F  
#define BRED             0XF81F
#define GRED             0XFFE0
#define GBLUE            0X07FF
#define RED              0xF800
#define MAGENTA          0xF81F
#define GREEN            0x07E0
#define CYAN             0x7FFF
#define YELLOW           0xFFE0
#define BROWN            0XBC40 //棕色
#define BRRED            0XFC07 //棕紅色
#define GRAY             0X8430 //灰色
#define DARKBLUE         0X01CF //深藍色
#define LIGHTBLUE        0X7D7C //淺藍色  
#define GRAYBLUE         0X5458 //灰藍色
#define LIGHTGREEN       0X841F //淺綠色
#define LGRAY            0XC618 //淺灰色(PANNEL),窗體背景色
#define LGRAYBLUE        0XA651 //淺灰藍色(中間層顏色)
#define LBBLUE           0X2B12 //淺棕藍色(選擇條目的反色)

螢幕填色

uint16_t color

tft.fillScreen(GC9A01A_BLACK); yield();

tft.fillScreen(GC9A01A_WHITE); yield();

tft.fillScreen(GC9A01A_RED); yield();

tft.fillScreen(GC9A01A_ORANGE); yield();

tft.fillScreen(GC9A01A_YELLOW); yield();

tft.fillScreen(GC9A01A_GREEN); yield();

tft.fillScreen(GC9A01A_BLUE); yield();

tft.fillScreen(GC9A01A_CYAN); yield();

tft.fillScreen(GC9A01A_MAGENTA); yield();

寫字

tft.setCursor(0, 0); //指定游標位置

tft.setTextColor(GC9A01A_WHITE); //指定字的顏色

tft.setTextSize(1); //指定文字尺寸

tft.println("Hello World!"); //寫字

tft.println(); //換行

畫線

tft.drawLine(x1, y1, x2, y2, color);

快速畫線

tft.drawFastHLine(0, y, w, color1);

tft.drawFastVLine(x, 0, h, color2);

畫矩形

tft.drawRect(x, y, i, i, color);

畫矩形色塊

tft.fillRect(x, y, i, i, color);

畫圓

tft.drawCircle(x, y, radius, color);

畫圓形色塊

tft.fillCircle(x, y, radius, color);

畫三角形

tft.drawTriangle(
	cx , cy - i, // peak
	cx - i, cy + i, // bottom left
	cx + i, cy + i, // bottom right
	tft.color565(i, i, i));

畫三角形色塊

tft.fillTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i,
	tft.color565(0, i10, i10));
	t += micros() - start;
	tft.drawTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i,
	tft.color565(i10, i10, 0));

畫圓角矩形

tft.drawRoundRect(cx-i2, cy-i2, i, i, i/8, tft.color565(i, 0, 0));

畫圓角矩形色塊

tft.fillRoundRect(cx-i2, cy-i2, i, i, i/8, tft.color565(0, i, 0));
	yield();

#include <SPI.h>

#include "LCD_Driver.h"

#include "GUI_Paint.h"

#include "image.h"

void setup()

{

Config_Init();

LCD_Init();

LCD_SetBacklight(1000);

Paint_NewImage(LCD_WIDTH, LCD_HEIGHT, 0, BLACK);

Paint_Clear(BLACK);

Paint_DrawCircle(120,120, 120, BLUE ,DOT_PIXEL_2X2,DRAW_FILL_EMPTY);

Paint_DrawLine (120, 0, 120, 12,GREEN ,DOT_PIXEL_4X4,LINE_STYLE_SOLID);

Paint_DrawLine (120, 228, 120, 240,GREEN ,DOT_PIXEL_4X4,LINE_STYLE_SOLID);

Paint_DrawLine (0, 120, 12, 120,GREEN ,DOT_PIXEL_4X4,LINE_STYLE_SOLID);

Paint_DrawLine (228, 120, 240, 120,GREEN ,DOT_PIXEL_4X4,LINE_STYLE_SOLID);

Paint_DrawImage(gImage_70X70, 85, 25, 70, 70);

Paint_DrawString_CN(56,140, "微雪电子", &Font24CN,BLACK, WHITE);

Paint_DrawString_EN(123, 123, "WAVESHARE",&Font16, BLACK, GREEN);

Paint_DrawLine (120, 120, 70, 70,YELLOW ,DOT_PIXEL_3X3,LINE_STYLE_SOLID);

Paint_DrawLine (120, 120, 176, 64,BLUE ,DOT_PIXEL_3X3,LINE_STYLE_SOLID);

Paint_DrawLine (120, 120, 120, 210,RED ,DOT_PIXEL_2X2,LINE_STYLE_SOLID);

}

void loop()

{

}

/*********************************************************************************************************

END FILE

*********************************************************************************************************/

Overlay parameters

The overlay support some optional parameters that allow changes in the default behavior and affects only the LCD display. They are key=value pairs, comma separated in no predefined order, as follow:

dtoverlay=gc9a01,speed=40000000,rotate=0,width=240,height=240,fps=50,debug=0

speed: max spi frequency to be used
rotate: image rotation (in degrees: 0, 90, 180, 270)
width: width of the display
height: height of the display
fps: max fps to be used
debug: debug level to be logged on boot process

Additional image orientation and resolution

Since fbcp is making a plain copy from HDMI to LCD, screen resolution may affect the final result. Additional settings can be added on the config.txt in order to adjust the resulting image to your needs. The full set of options can be checked at /boot/overlays/README.

Note that the following settings will be applied both to the HDMI and the LCD.

dtoverlay=gc9a01
hdmi_force_hotplug=1
hdmi_cvt=240 240 60 1 0 0 0
hdmi_group=2
hdmi_mode=87
hdmi_drive=2
display_rotate=2

hdmi_force_hotplug: force HDMI output rather than DVI
hdmi_cvt: adjusts de resolution, framerate and more. Format: <width> <height> <framerate> <aspect> <margins> <interlace>
hdmi_group: set DMT group (Display Monitor Timings: the standard typically used by monitors)
hdmi_mode: set DMT mode
hdmi_drive: force a HDMI mode rather than DVI
display_rotate: rotate screen 180 degrees

The display_rotate setting allows to rotate or flip the screen orientation to fit your needs. The default value is 0, possible values are:

0 no rotation
1 rotate 90 degrees clockwise
2 rotate 180 degrees clockwise
3 rotate 270 degrees clockwise
0x10000 horizontal flip
0x20000 vertical flip

This setting is a bitmask. So you can both flip and rotate the display at the same time. Example:

0x10001 both do a horizontal flip and rotate 90 degrees clockwise (0x10000 + 1).
0x20003 both do a vertical flip and rotate 270 degrees clockwise (0x20000 + 3).

芭蕉葉上聽雨聲

2023年5月29日星期一

[TFT] 圓形TFT GC9A01指令摘要

Overlay parameters

Additional image orientation and resolution

沒有留言:

張貼留言

2023年5月29日 星期一

[TFT] 圓形TFT GC9A01指令摘要

Overlay parameters

Additional image orientation and resolution

沒有留言:

張貼留言

2023年5月29日星期一