240x128液晶T6963控制器驱动程序
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1. //240x128液晶T6963控制器驱动程序（C51）
2. #include "absacc.h"
3. #include "math.h"
4.
5. #define CE 1<<22
6. #define WR 1<<21
7. #define RD 1<<20
8. #define C_D 1<<19
9. #define PORTD 0xff<<18
10.
11. #define ComPort 0xB101
12. #define DataPort 0xB000
13. #define GraphAddr 0x0000 //head of graph
14.
15. //以8*8字符计算,显示屏横向、纵向可以显示的字符个数
16. //以240*128为例:
17. #define LineChar 30 //一行16个字符(8*8)
18. #define ColumnChar 16 //总共16列
19.
20.
21. //指令,数据 读写状态检查
22. #define RWCheck() { unsigned char sta; do{ sta=XBYTE[ComPort] & 0x03; } while(sta!=0x03); }
23. //数据自动读 状态检查
24. #define AutoRCheck() { unsigned char sta; do{ sta=XBYTE[ComPort] & 0x04; } while(sta!=0x04); }
25. //数据自动写 状态检查
26. #define AutoWCheck() { unsigned char sta; do{ sta=XBYTE[ComPort] & 0x08; } while(sta!=0x08); }
27.
28. /*------输入/出函数,与T6963通讯------------------------------------------------*/
29. /*------------------------------------------------------------------------*/
30.
31. // 向数据口发Data
32. #define OutPortData(dat ) { RWCheck(); XBYTE[DataPort]=dat; }
33.
34. //写有 1 个参数命令
35. #define OutPortCom1(command) { RWCheck(); XBYTE[ComPort]= command; }
36.
37. //写有 2 个参数命令
38. #define OutPortCom2(dat, command) { OutPortData(dat); OutPortCom1(command); }
39.
40. //写有 3 个参数命令
41. #define OutPortCom3(data1, data2, command) { OutPortData(data1); OutPortData(data2); OutPortCom1(command);}
42.
43.
44. unsigned char InPortData() { RWCheck(); return(XBYTE[DataPort]); } 45.
46. /*-----------------------------------------------------------------------------------*/
47. //显示8*16字符
48. //lin:行(0-7), column: 列(0-15)
49. //ch:字符代码(标准ASCII码)
50. void ShowChar(unsigned char lin,unsigned char column,unsigned char ch)
51. {
52. unsigned char i;
53. unsigned char dat;
54. unsigned int StartAddr;
55.
56. StartAddr=lin*LineChar +column; //定位起始行
57.
58. for(i=0;i<16;i++)
59. {
60. dat=ASCII816[ ch-0x20 ][i];
61. OutPortCom3( (unsigned char)(StartAddr), (unsigned char)(StartAddr>>8), 0x24); //set address
62. OutPortCom2( dat, 0xc4);
63. StartAddr=StartAddr + LineChar;
64. }
65. }
66.
67. /*----------------------------------------------------------------------------------------------*/
68. //显示一个汉字(16*16点阵)
69. //lin:行(0-7), column: 列(0-7)
70. //hzcode: 汉字代码(自定义的)
71. void ShowHZ(unsigned char lin,unsigned char column,unsigned int hzcode)
72. {
73. unsigned char i;
74. unsigned int StartAddr;
75.
76. StartAddr=lin*LineChar + column; //定位起始行
77.
78. for(i=0;i<16;i++)
79. {
80. OutPortCom3( (unsigned char)(StartAddr), (unsigned char)(StartAddr>>8), 0x24);
81. OutPortCom2( HZTable[hzcode][i*2], 0xc0); //左半部 地址加一
82. OutPortCom2( HZTable[hzcode][i*2+1], 0xc4); //右半部 字模地址加一
83.
84. StartAddr=StartAddr + LineChar;
85. }
86. }
87. /////////////////////////////////////////////////////////////////////////////////////////////
88. //显示一个汉字(16*16点阵) 89. //lin:行(0-7), column: 列(0-7)
90. //hzcode: 汉字代码(自定义的)
91. void ShowHZD(unsigned char lin,unsigned char column,unsigned int hzcode)
92. {
93. unsigned char i,j;
94. unsigned int StartAddr;
95.
96. StartAddr=lin*LineChar*16 +column; //定位起始行
97.
98. for(i=0;i<35;i++)
99. {
100. OutPortCom3( (unsigned char)(StartAddr), (unsigned char)(StartAddr>>8), 0x24); //定位当前操作位置
101. for(j=0;j<5;j++) OutPortCom2( HZTable[hzcode][i*5+j], 0xc0); //显示当前一行
102.
103. StartAddr=StartAddr + LineChar;
104. }
105. }
106.
107. ////////////////////////////////////////////////////////////////////////////////////////////
108. /*-----------------------------------------------------------------------------------*/
109. //显示一行字符串(汉字,字母混排,一行16字节)
110. //lin:行
111. //lineheadaddr: 此行汉字代码区首地址
112. void ShowLine(unsigned char lin,unsigned char column,unsigned char linehead[])
113. {
114. unsigned char i,j;
115. unsigned char byte;
116. unsigned int hzcode;
117.
118. for( i= column,j=0; i column+14 ; )
119. { byte=linehead[j];
120. if(byte 0x80) //字母
121. {
122. ShowChar(lin, i , byte);
123. i=i+1;j=j+1;
124. }
125. else // byte >= 0x80(汉字)
126. {
127. byte=byte & 0x7f; //最高位置0,即:减去0x8000
128. hzcode=byte*256 + linehead[j+1]; //加低8位,组合成整型数地址
129. ShowHZ( lin,i,hzcode);
130. i=i+2;j=j+2;
131. }
132. }
