55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
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#ifndef USER_LCD_H_
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#define USER_LCD_H_
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#include "ch32v20x.h"
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static const uint8_t LCD_RS = 0x01;
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static const uint8_t LCD_RW = 0x02;
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static const uint8_t LCD_EN = 0x04;
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static const uint8_t LCD_BACKLIGHT = 0x08;
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static const uint8_t LCD_NOBACKLIGHT = 0x00;
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static const uint8_t LCD_4BITMODE = 0x00;
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static const uint8_t LCD_2LINE = 0x08;
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static const uint8_t LCD_CLEARDISPLAY = 0x01;
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static const uint8_t LCD_RETURNHOME = 0x02;
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static const uint8_t LCD_ENTRYMODESET = 0x04;
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static const uint8_t LCD_DISPLAYCONTROL = 0x08;
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static const uint8_t LCD_CURSORSHIFT = 0x10;
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static const uint8_t LCD_FUNCTIONSET = 0x20;
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static const uint8_t LCD_SETCGRAMADDR = 0x40;
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static const uint8_t LCD_SETDDRAMADDR = 0x80;
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static const uint8_t LCD_BLINKOFF = 0x00;
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static const uint8_t LCD_BLINKON = 0x01;
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static const uint8_t LCD_CURSOROFF = 0x00;
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static const uint8_t LCD_CURSORON = 0x02;
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static const uint8_t LCD_DISPLAYON = 0x04;
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static const uint8_t LCD_DISPLAYOFF = 0x00;
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static const uint8_t LCD_ENTRYSHIFTDEC = 0x00;
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static const uint8_t LCD_ENTRYSHIFTINC = 0x01;
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static const uint8_t LCD_ENTRYRIGHT = 0x00;
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static const uint8_t LCD_ENTRYLEFT = 0x02;
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typedef struct {
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uint8_t address;
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uint8_t backlight;
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uint8_t function;
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uint8_t dispctrl;
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uint8_t entrymode;
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} lcd_t;
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void lcd_init(lcd_t *lcd, uint8_t address);
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void lcd_backlight(lcd_t *lcd);
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void lcd_no_backlight(lcd_t *lcd);
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void lcd_clear(lcd_t *lcd);
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void lcd_home(lcd_t *lcd);
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void lcd_write(lcd_t *lcd, char c);
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void lcd_puts(lcd_t *lcd, char *str);
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void lcd_cursor(lcd_t *lcd, uint8_t row, uint8_t col);
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#endif /* USER_LCD_H_ */
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