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library

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Blame information for rev 6

Line No. Rev Author Line
1 6 kaklik /*! \file ks0108.h \brief Graphic LCD driver for HD61202/KS0108 displays. */
2 //*****************************************************************************
3 //
4 // File Name : 'ks0108.h'
5 // Title : Graphic LCD driver for HD61202/KS0108 displays
6 // Author : Pascal Stang - Copyright (C) 2001-2003
7 // Date : 10/19/2002
8 // Revised : 5/1/2003
9 // Version : 0.5
10 // Target MCU : Atmel AVR
11 // Editor Tabs : 4
12 //
13 // NOTE: This code is currently below version 1.0, and therefore is considered
14 // to be lacking in some functionality or documentation, or may not be fully
15 // tested. Nonetheless, you can expect most functions to work.
16 //
17 /// \ingroup driver_hw
18 /// \defgroup ks0108 Graphic LCD Driver for HD61202/KS0108-based Displays (ks0108.c)
19 /// \code #include "ks0108.h" \endcode
20 /// \par Overview
21 /// This display driver performs the basic functions necessary to access
22 /// any graphic LCD based on the KS0108 or HD61202 controller chip.  For more
23 /// advanced functions, use this driver in conjunction with glcd.c.
24 /// KS0108/HD61202 displays typically range in size from 64x32 pixels to
25 /// 128x128 pixels and up to 3" square.  To determine whether a display is
26 /// compatible, you should look for the above controller chips to be mounted
27 /// on the PC board attached to the display glass.  The controller chips are
28 /// about 1/2" x 3/4" and have 80+ pins. On larger displays, you may also see
29 /// slave LCD driver chips with the numbers KS0107 or HD61203.  The display
30 /// will likely have an 18 or 20-pin interface.  The interface from the LCD
31 /// to an AVR processor does not require any additional hardware.  If you can
32 /// locate a datasheet for your display, that plus the information in the
33 /// ks0108conf.h file should be all you need to get hooked up.
34 //
35 // This code is distributed under the GNU Public License
36 // which can be found at http://www.gnu.org/licenses/gpl.txt
37 //
38 //*****************************************************************************
39  
40  
41 #ifndef KS0108_H
42 #define KS0108_H
43  
44 #include "global.h"
45  
46 #include "ks0108conf.h"
47  
48 // HD61202/KS0108 command set
49 #define GLCD_ON_CTRL 0x3E // 0011111X: lcd on/off control
50 #define GLCD_ON_DISPLAY 0x01 // DB0: turn display on
51  
52 #define GLCD_START_LINE 0xC0 // 11XXXXXX: set lcd start line
53  
54 #define GLCD_SET_PAGE 0xB8 // 10111XXX: set lcd page (X) address
55 #define GLCD_SET_Y_ADDR 0x40 // 01YYYYYY: set lcd Y address
56  
57 #define GLCD_STATUS_BUSY 0x80 // (1)->LCD IS BUSY
58 #define GLCD_STATUS_ONOFF 0x20 // (0)->LCD IS ON
59 #define GLCD_STATUS_RESET 0x10 // (1)->LCD IS RESET
60  
61 // determine the number of controllers
62 // (make sure we round up for partial use of more than one controller)
63 #define GLCD_NUM_CONTROLLERS ((GLCD_XPIXELS+GLCD_CONTROLLER_XPIXELS-1)/GLCD_CONTROLLER_XPIXELS)
64  
65 // typedefs/structures
66 typedef struct struct_GrLcdCtrlrStateType
67 {
68 unsigned char xAddr;
69 unsigned char yAddr;
70 } GrLcdCtrlrStateType;
71  
72 typedef struct struct_GrLcdStateType
73 {
74 unsigned char lcdXAddr;
75 unsigned char lcdYAddr;
76 GrLcdCtrlrStateType ctrlr[GLCD_NUM_CONTROLLERS];
77 } GrLcdStateType;
78  
79 // function prototypes
80 void glcdInitHW(void);
81 void glcdBusyWait(u08 controller);
82 void glcdControlWrite(u08 controller, u08 data);
83 u08 glcdControlRead(u08 controller);
84 void glcdDataWrite(u08 data);
85 u08 glcdDataRead(void);
86 void glcdSetXAddress(u08 xAddr);
87 void glcdSetYAddress(u08 yAddr);
88  
89  
90 //! Initialize the display, clear it, and prepare it for access
91 void glcdInit(void);
92 //! Clear the display
93 void glcdClearScreen(void);
94 //! Set display memory access point back to upper,left corner
95 void glcdHome(void);
96 //! Set display memory access point to row [line] and column [col] assuming 5x7 font
97 void glcdGotoChar(u08 line, u08 col);
98 //! Set display memory access point to [x] horizontal pixel and [y] vertical line
99 void glcdSetAddress(u08 x, u08 yLine);
100 //! Set display memory access point to row [line] and column [col] assuming 5x7 font
101 void glcdStartLine(u08 start);
102 //! Generic delay routine for timed glcd access
103 void glcdDelay(u16 p);
104 #endif
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