Lukasz Uszko
MBED library for LCD-TFT display: https://www.waveshare.com/wiki/2.8inch_TFT_Touch_Shield
Diff: HX8347D/LCD.h
- Revision:
- 0:b036dfb76a75
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/HX8347D/LCD.h Tue Apr 03 20:08:18 2018 +0000
@@ -0,0 +1,193 @@
+#ifndef LCD_h
+#define LCD_h
+
+#include "mbed.h"
+#include "system.h"
+#include "interfaces.h"
+
+#include "font.h"
+
+//Basic Colors
+#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
+#define BRRED 0XFC07
+#define GRAY 0X8430
+
+#define LCD_CMD 0
+#define LCD_DATA 1
+
+#define FONT_1206 12
+#define FONT_1608 16
+
+#define LCD_WIDTH 240
+#define LCD_HEIGHT 320
+
+#define LCD_DC_PIN PA_8
+#define LCD_BKL_PIN PC_7
+#define LCD_CS_PIN PB_6
+
+#define __LCD_CS_OUT() lcd_cs_pin(LCD_CS_PIN)
+#define __LCD_CS_CLR() lcd_cs_pin.write(LOW)
+#define __LCD_CS_SET() lcd_cs_pin.write(HIGH)
+
+#define __LCD_DC_OUT() lcd_dc_pin(LCD_DC_PIN)
+#define __LCD_DC_CLR() lcd_dc_pin.write(LOW)
+#define __LCD_DC_SET() lcd_dc_pin.write(HIGH)
+
+#define __LCD_BKL_OUT() lcd_bkl_pin(LCD_BKL_PIN)
+#define __LCD_BKL_OFF() lcd_bkl_pin.write(LOW)
+#define __LCD_BKL_ON() lcd_bkl_pin.write(HIGH)
+
+
+#define __LCD_WRITE_BYTE(__DATA) HwInterfaces::instance()::getHwInterface<SPI__1>().handle().transfer(__DATA)
+
+
+
+
+class LCD
+{
+
+public:
+
+ LCD();
+
+ void lcd_write_byte(uint8_t chByte, uint8_t chCmd)
+ {
+ if (chCmd) {
+ __LCD_DC_SET();
+ } else {
+ __LCD_DC_CLR();
+ }
+
+ __LCD_CS_CLR();
+ __LCD_WRITE_BYTE(chByte);
+ __LCD_CS_SET();
+ }
+
+ inline void lcd_write_word(uint16_t hwData)
+ {
+ __LCD_DC_SET();
+ __LCD_CS_CLR();
+ __LCD_WRITE_BYTE(hwData >> 8);
+ __LCD_WRITE_BYTE(hwData & 0xFF);
+ __LCD_CS_SET();
+ }
+
+
+ //write a word(two bytes) to the specified register of lcd.
+ //chRegister address of the register of lcd.
+ //hwValue value is written to the specified register.
+ void lcd_write_register(uint8_t chRegister, uint8_t chValue)
+ {
+ lcd_write_byte(chRegister, LCD_CMD);
+ lcd_write_byte(chValue, LCD_DATA);
+ }
+
+ //set the specified position of cursor on lcd.
+ //hwXpos specify x position
+ //hwYpos specify y position
+ void lcd_set_cursor(uint16_t hwXpos, uint16_t hwYpos)
+ {
+ if (hwXpos >= LCD_WIDTH|| hwYpos >= LCD_HEIGHT) {
+ return;
+ }
+
+ lcd_write_register(0x02, hwXpos >> 8);
+ lcd_write_register(0x03, hwXpos & 0xFF); //Column Start
+ lcd_write_register(0x06, hwYpos >> 8);
+ lcd_write_register(0x07, hwYpos & 0xFF); //Row Start
+ }
+
+ //clear the lcd with the specified color.
+ void lcd_clear_screen(uint16_t hwColor)
+ {
+ uint32_t i, wCount = LCD_WIDTH;
+
+ wCount *= LCD_HEIGHT;
+
+ lcd_set_cursor(0, 0);
+ lcd_write_byte(0x22, LCD_CMD);
+
+ __LCD_DC_SET();
+ __LCD_CS_CLR();
+ for (i = 0; i < wCount; i ++) {
+ __LCD_WRITE_BYTE(hwColor >> 8);
+ __LCD_WRITE_BYTE(hwColor & 0xFF);
+ }
+ __LCD_CS_SET();
+ }
+
+ void lcd_init ();
+ void lcd_draw_point(uint16_t hwXpos, uint16_t hwYpos, uint16_t hwColor);
+ void lcd_display_char(uint16_t hwXpos, //specify x position.
+ uint16_t hwYpos, //specify y position.
+ uint8_t chChr, //a char is display.
+ uint8_t chSize, //specify the size of the char
+ uint16_t hwColor); //specify the color of the char
+ //display a number at the specified position on lcd.
+ void lcd_display_num(uint16_t hwXpos, //specify x position.
+ uint16_t hwYpos, //specify y position.
+ uint32_t chNum, //a number is display.
+ uint8_t chLen, //length ot the number
+ uint8_t chSize, //specify the size of the number
+ uint16_t hwColor); //specify the color of the number
+ //display a string at the specified position on lcd.
+ void lcd_display_string(uint16_t hwXpos, //specify x position.
+ uint16_t hwYpos, //specify y position.
+ const uint8_t *pchString, //a pointer to string
+ uint8_t chSize, // the size of the string
+ uint16_t hwColor); // specify the color of the string
+ void lcd_draw_line(uint16_t hwXpos0, //specify x0 position.
+ uint16_t hwYpos0, //specify y0 position.
+ uint16_t hwXpos1, //specify x1 position.
+ uint16_t hwYpos1, //specify y1 position.
+ uint16_t hwColor); //specify the color of the line
+ void lcd_draw_circle(uint16_t hwXpos, //specify x position.
+ uint16_t hwYpos, //specify y position.
+ uint16_t hwRadius, //specify the radius of the circle.
+ uint16_t hwColor); //specify the color of the circle.
+ void lcd_fill_rect(uint16_t hwXpos, //specify x position.
+ uint16_t hwYpos, //specify y position.
+ uint16_t hwWidth, //specify the width of the rectangle.
+ uint16_t hwHeight, //specify the height of the rectangle.
+ uint16_t hwColor); //specify the color of rectangle.
+ void lcd_draw_v_line(uint16_t hwXpos, //specify x position.
+ uint16_t hwYpos, //specify y position.
+ uint16_t hwHeight, //specify the height of the vertical line.
+ uint16_t hwColor); //specify the color of the vertical line.
+ void lcd_draw_h_line(uint16_t hwXpos, //specify x position.
+ uint16_t hwYpos, //specify y position.
+ uint16_t hwWidth, //specify the width of the horizonal line.
+ uint16_t hwColor); //specify the color of the horizonal line.
+ void lcd_draw_rect(uint16_t hwXpos, //specify x position.
+ uint16_t hwYpos, //specify y position.
+ uint16_t hwWidth, //specify the width of the rectangle.
+ uint16_t hwHeight, //specify the height of the rectangle.
+ uint16_t hwColor); //specify the color of rectangle.
+
+private:
+ DigitalOut lcd_cs_pin;
+ DigitalOut lcd_dc_pin;
+ DigitalOut lcd_bkl_pin;
+
+
+};
+
+extern LCD lcd;
+
+#endif
+
+/*********************************************************************************************************
+ END FILE
+*********************************************************************************************************/
+