LC/VF Display Driver.

Collaboration diagram for LC/VF Display Driver.:

Defines
#define	LcdNanoDelay(a)
	Wait until controller will be ready again.
#define	LCD_SHORT_DELAY   1
#define	LCD_LONG_DELAY   2
#define	LCD_DELAY   _NOP(); _NOP(); _NOP(); _NOP()
Variables
TERMDCB	dcb_term
	Terminal device control block structure.
NUTDEVICE	devLcd
	LCD device information structure.
TERMDCB	dcb_term
	Terminal device control block structure.
NUTDEVICE	devLcd
	LCD device information structure.
TERMDCB	dcb_term
	Terminal device control block structure.
NUTDEVICE	devLcdBus
	LCD device information structure.
NUTDEVICE	devSpiMegaLcd
	LCD device information structure.

---

Define Documentation

#define LcdNanoDelay

(

a

)

Wait until controller will be ready again.

If LCD_WR_BIT is defined we will wait until the ready bit is set, otherwise We will either busy loop with NutDelay or sleep with NutSleep. The second option will be used if we have defined NUT_CPU_FREQ. In this case we have a higher timer resolution.

Parameters:

xt	Delay time in milliseconds

#define LCD_SHORT_DELAY   1

#define LCD_LONG_DELAY   2

#define LCD_DELAY   _NOP(); _NOP(); _NOP(); _NOP()

---

Variable Documentation

TERMDCB dcb_term

Initial value:

 {
    LcdInit,                    
    LcdWriteData,               
    LcdWriteInstruction,        
    LcdClear,                   
    LcdSetCursor,               
    LcdCursorHome,              
    LcdCursorLeft,              
    LcdCursorRight,             
    LcdCursorMode,              
    0,                          
    0,                          
    LCD_ROWS,                   
    LCD_COLS,                   
    LCD_COLS,                   
    0,                          
    0,                          
    0                           
}

Terminal device control block structure.

NUTDEVICE devLcd

Initial value:

 {
    0,                          
    {'c', 'h', 'a', 'r', 'l', 'c', 'd', 0, 0},  
    IFTYP_STREAM,               
    0,                          
    0,                          
    0,                          
    &dcb_term,                  
    TermInit,                   
    TermIOCtl,                  
    0,
    TermWrite,
    TermOpen,
    TermClose,
    0
}

LCD device information structure.

TERMDCB dcb_term

Initial value:

 {
    LcdInit,            
    LcdWriteData,       
    LcdWriteCmd,        
    LcdClear,           
    LcdSetCursor,       
    LcdCursorHome,      
    LcdCursorLeft,      
    LcdCursorRight,     
    LcdCursorMode,      
    0,                  
    0,                  
    LCD_ROWS,           
    LCD_COLS,           
    LCD_COLS,           
    0,                  
    0,                  
    0                   
}

Terminal device control block structure.

NUTDEVICE devLcd

Initial value:

 {
    0,              
    {'l', 'c', 'd', 0, 0, 0, 0, 0, 0},      
    IFTYP_STREAM,   
    0,              
    0,              
    0,              
    &dcb_term,      
    TermInit,       
    TermIOCtl,      
    0,
    TermWrite,
    TermWrite_P,
    TermOpen,
    TermClose,
    0
}

LCD device information structure.

TERMDCB dcb_term

Initial value:

 {
    LcdInit,                    
    LcdWriteData,               
    LcdWriteCmd,                
    LcdClear,                   
    LcdSetCursor,               
    LcdCursorHome,              
    LcdCursorLeft,              
    LcdCursorRight,             
    LcdCursorMode,              
    0,                          
    0,                          


























    2,                  
    16,                 
    16,                 





















    0,                  
    0,                  
    0                   
}

Terminal device control block structure.

NUTDEVICE devLcdBus

Initial value:

 {
    0,                          
    {'l', 'c', 'd', 'b', 'u', 's', 0, 0, 0},    
    IFTYP_STREAM,               
    0,                          
    0,                          
    0,                          
    &dcb_term,                  
    TermInit,                   
    TermIOCtl,                  
    0,
    TermWrite,
    TermWrite_P,
    TermOpen,
    TermClose,
    0
}

LCD device information structure.

NUTDEVICE devSpiMegaLcd

Initial value:

 {
    0,              
    {'l', 'c', 'd', 0, 0, 0, 0, 0, 0},      
    IFTYP_STREAM,   
    0,              
    0,              
    0,              
    &dcb_term,      
    TermInit,       
    TermIOCtl,      
    0,
    TermWrite,

    TermWrite_P,

    TermOpen,
    TermClose,
    0
}

LCD device information structure.