Display um set_display und userdefined charachter erweiter

Source/Display.cpp

@@ -10,6 +10,8 @@
 #include "STM32G071KBT6.hpp"
 #include "Display.hpp"
 
+/// address for character generator ram
+#define CMD_CGRAM_ADDR 0x40u
 #define pulse_delay() for(uint32_t i = 0UL; i < 1UL; i++);
 #define PIN_RS LL_GPIO_PIN_4
 #define PIN_RW LL_GPIO_PIN_5
@@ -147,6 +149,32 @@ namespace ElektronischeLast
     lcd_cmd(0x80u | line | (position & 0x7F));
   }
 
+  /// \brief switch display on/off and set cursor mode
+  /// \param[in] display \ref eDisplay_t
+  /// \param[in] cursor \ref eCursor_t
+  /// \param[in] blink \ref eCursorBlink_t
+  void Display::lcd_set_display(eDisplay_t display, eCursor_t cursor, eCursorBlink_t blink)
+  {
+    lcd_cmd(0x08u | display | cursor | blink);
+  }
+
+  /// \brief set user defined character in display ram
+  /// \details e.g. https://maxpromer.github.io/LCD-Character-Creator/ to generate character data
+  /// \param[in] character \ref eUserDefinedCharakter_t
+  /// \param[in] character_data pixel-data of character (8-Byte)
+  void Display::lcd_set_user_chars(Display::UserDefinedCharakter_t character, const uint8_t character_data[])
+  {
+    lcd_cmd((uint8_t)character | CMD_CGRAM_ADDR);
+    for(uint8_t idx = 0u; idx < 8u; idx++)
+    {
+      while(!ready_for_data())
+      {
+        run();
+      }
+      lcd_data(character_data[idx]);
+    }
+  }
+
   void Display::print(const char* const string)
   {
     strncpy(this->string, string, sizeof(this->string));

Source/Display.hpp

@@ -70,6 +70,27 @@ namespace ElektronischeLast
         Line2 = 0x40, //!< Select second display line
       } Line_t;
 
+      /// \brief Display State
+      typedef enum
+      {
+        eDisplayOff = 0, //!< Display off
+        eDispalyOn = 4   //!< Display on
+      } eDisplay_t;
+
+      /// \brief Cursor State
+      typedef enum
+      {
+        eCursorOff = 0,  //!< Cursor off
+        eCursorOn = 2    //!< Cursor on
+      } eCursor_t;
+
+      /// \brief Cursor blink mode
+      typedef enum
+      {
+        eCursorBlinkOff = 0, //!< no Cursor blink
+        eCursorBlinkOn = 1   //!< Cursor blink
+      } eCursorBlink_t;
+
       typedef enum
       {
         StateIdle,
@@ -92,8 +113,10 @@ namespace ElektronischeLast
       void run(void);
       void set_backlight(bool on);
       void set_cursor(Line_t line, std::uint32_t position);
+      void lcd_set_display(eDisplay_t display, eCursor_t cursor, eCursorBlink_t blink);
       void print(const char* const string);
       bool ready_for_data(void);
+      void lcd_set_user_chars(Display::UserDefinedCharakter_t character, const uint8_t character_data[]);
     private:
       State_t current_state;
       State_t next_state;