📄 d12ci.lst
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C51 COMPILER V7.06 D12CI 12/06/2003 10:37:16 PAGE 1
C51 COMPILER V7.06, COMPILATION OF MODULE D12CI
OBJECT MODULE PLACED IN D12ci.OBJ
COMPILER INVOKED BY: C:\KEIL\C51\BIN\C51.EXE D12ci.c BROWSE DEBUG OBJECTEXTEND
stmt level source
1 #include <reg51.h> /* special function register declarations */
2 #include "mainloop.h"
3 #include "d12ci.h"
4 #include "absacc.h"
5 #include "epphal.h"
6
7 #define D12_DATA 0xfb02 //定义数据地址（偶数地址）
8 #define D12_COMMAND 0xfb03 //定义数据地址（奇数地址）发命令
9
10 extern EPPFLAGS bEPPflags; //定义当前模块符号引用，该符号是在其模块中定义的。
11
12 //设置地址使能
13 void D12_SetAddressEnable(unsigned char bAddress, unsigned char bEnable)
14 {
15 1 if(bEPPflags.bits.in_isr == 0)
16 1 DISABLE;
17 1
18 1 outportb(D12_COMMAND, 0xD0);//输出指令
19 1 if(bEnable)
20 1 bAddress |= 0x80;
21 1 outportb(D12_DATA, bAddress);//设置地址
22 1
23 1 if(bEPPflags.bits.in_isr == 0)
24 1 ENABLE;
25 1 }
26
27 //设置端点使能
28 void D12_SetEndpointEnable(unsigned char bEnable)
29 {
30 1 if(bEPPflags.bits.in_isr == 0)
31 1 DISABLE;
32 1
33 1 outportb(D12_COMMAND, 0xD8);//输出指令
34 1 if(bEnable)
35 1 outportb(D12_DATA, 1);//设置端点允许
36 1 else
37 1 outportb(D12_DATA, 0);//设置端点禁止
38 1
39 1 if(bEPPflags.bits.in_isr == 0)
40 1 ENABLE;
41 1 }
42
43 //模式设置
44 void D12_SetMode(unsigned char bConfig, unsigned char bClkDiv)
45 {
46 1 if(bEPPflags.bits.in_isr == 0)
47 1 DISABLE;
48 1
49 1 outportb(D12_COMMAND, 0xF3);//设置模式
50 1 outportb(D12_DATA, bConfig);
51 1 outportb(D12_DATA, bClkDiv);
52 1
53 1 if(bEPPflags.bits.in_isr == 0)
54 1 ENABLE;
55 1 }
C51 COMPILER V7.06 D12CI 12/06/2003 10:37:16 PAGE 2
56
57 //DMA工作方式设置
58 void D12_SetDMA(unsigned char bMode)
59 {
60 1 if(bEPPflags.bits.in_isr == 0)
61 1 DISABLE;
62 1
63 1 outportb(D12_COMMAND, 0xFB);//设置DMA工作方式
64 1 outportb(D12_DATA, bMode);
65 1
66 1 if(bEPPflags.bits.in_isr == 0)
67 1 ENABLE;
68 1 }
69
70 //读取中断寄存器
71 unsigned short D12_ReadInterruptRegister(void)
72 {
73 1 unsigned char b1;
74 1 unsigned int j;
75 1
76 1 outportb(D12_COMMAND, 0xF4);//读取中断寄存器
77 1 b1 = inportb(D12_DATA);
78 1 j = inportb(D12_DATA);
79 1
80 1 j <<= 8;
81 1 j += b1;
82 1
83 1 return j;
84 1 }
85
86 //端点选择
87 unsigned char D12_SelectEndpoint(unsigned char bEndp)
88 {
89 1 unsigned char c;
90 1
91 1 if(bEPPflags.bits.in_isr == 0)
92 1 DISABLE;
93 1
94 1 outportb(D12_COMMAND, bEndp);//端点选择
95 1 c = inportb(D12_DATA);
96 1
97 1 if(bEPPflags.bits.in_isr == 0)
98 1 ENABLE;
99 1
100 1 return c;
101 1 }
102
103 //读取最后传输状态
104 unsigned char D12_ReadLastTransactionStatus(unsigned char bEndp)
105 {
106 1 outportb(D12_COMMAND, 0x40 + bEndp);//返回最后传输状态
107 1 return inportb(D12_DATA);
108 1 }
109
110 //读取端点状态
111 unsigned char D12_ReadEndpointStatus(unsigned char bEndp)
112 {
113 1 unsigned char c;
114 1
115 1 if(bEPPflags.bits.in_isr == 0)
116 1 DISABLE;
117 1
C51 COMPILER V7.06 D12CI 12/06/2003 10:37:16 PAGE 3
118 1 outportb(D12_COMMAND, 0x80 + bEndp);//读取端点状态
119 1 c = inportb(D12_DATA);
120 1
121 1 if(bEPPflags.bits.in_isr == 0)
122 1 ENABLE;
123 1
124 1 return c;
125 1 }
126
127 //设置端点状态
128 void D12_SetEndpointStatus(unsigned char bEndp, unsigned char bStalled)
129 {
130 1 if(bEPPflags.bits.in_isr == 0)
131 1 DISABLE;
132 1
133 1 outportb(D12_COMMAND, 0x40 + bEndp);//设置端点状态
134 1 outportb(D12_DATA, bStalled);
135 1
136 1 if(bEPPflags.bits.in_isr == 0)
137 1 ENABLE;
138 1 }
139
140 //传输恢复
141 void D12_SendResume(void)
142 {
143 1 outportb(D12_COMMAND, 0xF6);//设置发送恢复
144 1 }
145
146 //读取当前帧标志
147 unsigned short D12_ReadCurrentFrameNumber(void)
148 {
149 1 unsigned short i,j;
150 1
151 1 if(bEPPflags.bits.in_isr == 0)
152 1 DISABLE;
153 1
154 1 outportb(D12_COMMAND, 0xF5); //读取当前帧数目
155 1 i= inportb(D12_DATA); //低位有效字节
156 1 j = inportb(D12_DATA); //高位有效字节
157 1
158 1 i += (j<<8);
159 1
160 1 if(bEPPflags.bits.in_isr == 0)
161 1 ENABLE;
162 1
163 1 return i;
164 1 }
165
166 //读取端点数据
167 unsigned char D12_ReadEndpoint(unsigned char endp, unsigned char len, unsigned char * buf)
168 {
169 1 unsigned char i, j;
170 1
171 1 if(bEPPflags.bits.in_isr == 0)
172 1 DISABLE;
173 1
174 1 outportb(D12_COMMAND, endp); //读取端点缓冲区状态
175 1 if((inportb(D12_DATA) & D12_FULLEMPTY) == 0) //D12_FULLEMPTY=0x01
176 1 {
177 2 if(bEPPflags.bits.in_isr == 0)
178 2 ENABLE;
179 2 return 0; //当前缓冲区为空，返回
C51 COMPILER V7.06 D12CI 12/06/2003 10:37:16 PAGE 4
180 2 }
181 1
182 1 outportb(D12_COMMAND, 0xF0);
183 1 j = inportb(D12_DATA); //无效
184 1 j = inportb(D12_DATA); //读取缓冲区字节长度
185 1
186 1 if(j > len)
187 1 j = len;
188 1
189 1 for(i=0; i<j; i++) //读缓冲区内容
190 1 *(buf+i) = inportb(D12_DATA);
191 1
192 1 outportb(D12_COMMAND, 0xF2); //缓冲区清零
193 1
194 1 if(bEPPflags.bits.in_isr == 0)
195 1 ENABLE;
196 1
197 1 return j;
198 1 }
199
200 //写端点
201 unsigned char D12_WriteEndpoint(unsigned char endp, unsigned char len, unsigned char * buf)
202 {
203 1 unsigned char i;
204 1
205 1 if(bEPPflags.bits.in_isr == 0)
206 1 DISABLE;
207 1
208 1 outportb(D12_COMMAND, endp);
209 1 i = inportb(D12_DATA);
210 1
211 1 outportb(D12_COMMAND, 0xF0); //写缓冲区（多字节，最大为130）
212 1 outportb(D12_DATA, 0); //保留，可为任意值
213 1 outportb(D12_DATA, len); //数据字节的数目长度
214 1
215 1 for(i=0; i<len; i++)
216 1 outportb(D12_DATA, *(buf+i)); //每写一个字节，内部缓冲区指针自动加1
217 1
218 1 outportb(D12_COMMAND, 0xFA); //使缓冲区有效
219 1
220 1 if(bEPPflags.bits.in_isr == 0)
221 1 ENABLE;
222 1
223 1 return len;
224 1 }
225
226 //设置端点应答
227 void D12_AcknowledgeEndpoint(unsigned char endp)
228 {
229 1 outportb(D12_COMMAND, endp);
230 1 outportb(D12_COMMAND, 0xF1); //应答
231 1 if(endp == 0)
232 1 outportb(D12_COMMAND, 0xF2); //绶冲区清零
233 1 }
234
235 //输出数据（单字节）
236 void outportb(unsigned int Addr, unsigned char Data)
237 {
238 1 *((unsigned char xdata *) Addr) = Data;
239 1 }
240
241 //输入数据（单字节）
C51 COMPILER V7.06 D12CI 12/06/2003 10:37:16 PAGE 5
242 unsigned char inportb(unsigned int Addr)
243 {
244 1 return *((unsigned char xdata *) Addr);
245 1 }
246
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 679 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = ---- 22
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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