The function 'lcd_bin' is never used.

The function 'lcd_blinking_cursor_on' is never used.

The function 'lcd_buf_bin' is never used.

The function 'lcd_buf_hex' is never used.

The function 'lcd_buf_int' is never used.

The function 'lcd_buf_locate' is never used.

The function 'lcd_cursor_off' is never used.

The function 'lcd_cursor_on' is never used.

The function 'lcd_enable_backlight' is never used.

The function 'lcd_hex' is never used.

The function 'lcd_home' is never used.

The function 'lcd_init' is never used.

The function 'lcd_int' is never used.

The function 'lcd_load_char_bank' is never used.

The function 'lcd_update' is never used.