149 lines
4.1 KiB
C++
149 lines
4.1 KiB
C++
/*
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* Display.hpp
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*
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* Created on: Aug 12, 2023
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* Author: Carst
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*/
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#ifndef DISPLAY_HPP_
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#define DISPLAY_HPP_
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#include <cstdint>
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namespace ElektronischeLast
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{
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class Display
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{
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public:
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/// \brief User defined character number
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typedef enum
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{
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FirstSign = 0, //!< First user defined character (accassible via data 0x0)
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SecondSign = 8, //!< Second user defined character (accassible via data 0x1)
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ThirdSign = 16, //!< Third user defined character (accassible via data 0x2)
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FourthSign = 24, //!< Fourth user defined character (accassible via data 0x3)
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FifthSign = 32, //!< Fifth user defined character (accassible via data 0x4)
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SixthSign = 40, //!< Sixth user defined character (accassible via data 0x5)
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SeventhSign = 48,//!< Seventh user defined character (accassible via data 0x6)
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EithSign = 56 //!< Eith user defined character (accassible via data 0x7)
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} UserDefinedCharakter_t;
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/// \brief Shift direction
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typedef enum
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{
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ShiftLeft = 0, //!< Shift text left
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ShiftRight = 2 //!< Shift text right
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} ShiftDirection_t;
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/// \brief Shift mode
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typedef enum
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{
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ShiftOff = 0, //!< Shift disabled
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ShiftOn = 1 //!< Shift enabled
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} ShiftMode_t;
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/// \brief Display State
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typedef enum
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{
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DisplayOff = 0, //!< Display off
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DispalyOn = 4 //!< Display on
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} Display_t;
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/// \brief Cursor State
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typedef enum
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{
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CursorOff = 0, //!< Cursor off
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CursorOn = 2 //!< Cursor on
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} Cursor_t;
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/// \brief Cursor blink mode
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typedef enum
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{
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CursorBlinkOff = 0, //!< no Cursor blink
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CursorBlinkOn = 1 //!< Cursor blink
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} CursorBlink_t;
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/// \brief Display line selection
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typedef enum
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{
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Line1 = 0, //!< Select first display line
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Line2 = 0x40, //!< Select second display line
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} Line_t;
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/// \brief Display State
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typedef enum
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{
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eDisplayOff = 0, //!< Display off
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eDispalyOn = 4 //!< Display on
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} eDisplay_t;
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/// \brief Cursor State
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typedef enum
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{
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eCursorOff = 0, //!< Cursor off
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eCursorOn = 2 //!< Cursor on
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} eCursor_t;
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/// \brief Cursor blink mode
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typedef enum
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{
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eCursorBlinkOff = 0, //!< no Cursor blink
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eCursorBlinkOn = 1 //!< Cursor blink
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} eCursorBlink_t;
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typedef enum
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{
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StateIdle,
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StateDelay,
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StateWaitWhileBusy,
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StateInit01,
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StateInit02,
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StateInit03,
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StateInit04,
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StateInit05,
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StateInit06,
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StateInit07,
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StateInit08,
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StateInit09,
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StateInit10,
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StateWriteData,
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} State_t;
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void init(void);
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void run(void);
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void set_backlight(bool on);
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void set_cursor(Line_t line, std::uint32_t position);
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void lcd_set_display(eDisplay_t display, eCursor_t cursor, eCursorBlink_t blink);
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void print(Display::Line_t line, const char* const string);
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bool ready_for_data(void);
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void lcd_set_user_chars(Display::UserDefinedCharakter_t character, const uint8_t character_data[]);
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private:
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typedef enum
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{
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ActiveLineNone,
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ActiveLine1,
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ActiveLine2,
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} ActiveLine_t;
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State_t current_state;
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State_t next_state;
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std::uint32_t timer;
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char line1[17];
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char line2[17];
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std::uint8_t pointer;
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ActiveLine_t active_line;
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bool new_data1;
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bool new_data2;
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bool timer_elapsed(void);
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void start_timer(std::uint32_t timeout);
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void lcd_cmd(uint8_t cmd);
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void lcd_data(uint8_t data);
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void write_command_8bit_4pin(std::uint32_t data);
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void write_command_4bit(std::uint32_t command);
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void write_data_4bit(uint8_t data);
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};
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}
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#endif /* DISPLAY_HPP_ */
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