📄 periph.lst
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C51 COMPILER V7.09 PERIPH 04/03/2007 16:19:05 PAGE 1
C51 COMPILER V7.09, COMPILATION OF MODULE PERIPH
OBJECT MODULE PLACED IN periph.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE periph.c BROWSE
line level source
1 #pragma NOIV // Do not generate interrupt vectors
2 //-----------------------------------------------------------------------------
3 // File: periph.c
4 // Contents: Hooks required to implement USB peripheral function.
5 //
6 // Copyright (c) 1997 AnchorChips, Inc. All rights reserved
7 //-----------------------------------------------------------------------------
8 #include "fx2.h"
9 #include "fx2regs.h"
10 #include "io.h"
11 #include "key.h"
12 #include "led.h"
13 //#include "serial.h"
14 #include "eeprom.h"
15 #include "fx2sdly.h"
16 extern BOOL GotSUD; // Received setup data flag
17 extern BOOL Sleep;
18 extern BOOL Rwuen;
19 extern BOOL Selfpwr;
20
21 BYTE Configuration; // Current configuration
22 BYTE AlternateSetting; // Alternate settings
23 char AD_X1;
24 //-----------------------------------------------------------------------------
25 // Task Dispatcher hooks
26 // The following hooks are called by the task dispatcher.任务调度
27 //-----------------------------------------------------------------------------
28
29 void TD_Init(void) // Called once at startup
30 {
31 1 REVCTL = 0x03; // MUST set REVCTL.0 and REVCTL.1 to 1
32 1 SYNCDELAY;
33 1 BREAKPT &= ~bmBPEN; // to see BKPT LED go out TGE
34 1 Rwuen = TRUE; // Enable remote-wakeup*/
35 1 }
36
37 void TD_Poll(void) // Called repeatedly while the device is idle
38 {
39 1 }
40
41 BOOL TD_Suspend(void) // Called before the device goes into suspend mode
42 {
43 1 return(TRUE);
44 1 }
45
46 BOOL TD_Resume(void) // Called after the device resumes
47 {
48 1 return(TRUE);
49 1 }
50
51 //-----------------------------------------------------------------------------
52 // Device Request hooks设备请求钩子程序
53 // The following hooks are called by the end point 0 device request parser.
54 //-----------------------------------------------------------------------------
55 //下面的钩子程序被端点0设备请求器调用
C51 COMPILER V7.09 PERIPH 04/03/2007 16:19:05 PAGE 2
56 BOOL DR_GetDescriptor(void)
57 {
58 1 return(TRUE);
59 1 }
60
61 BOOL DR_SetConfiguration(void) // Called when a Set Configuration command is received
62 {
63 1 Configuration = SETUPDAT[2];
64 1 return(TRUE); // Handled by user code
65 1 }
66
67 BOOL DR_GetConfiguration(void) // Called when a Get Configuration command is received
68 {
69 1 EP0BUF[0] = Configuration;//34页，端口0
70 1 EP0BCH = 0; //32页，端口0
71 1 EP0BCL = 1;
72 1 return(TRUE); // Handled by user code
73 1 }
74
75 BOOL DR_SetInterface(void) // Called when a Set Interface command is received
76 {
77 1 AlternateSetting = SETUPDAT[2];//收到端口命令时
78 1 return(TRUE); // Handled by user code
79 1 }
80
81 BOOL DR_GetInterface(void) // Called when a Set Interface command is received
82 {
83 1 EP0BUF[0] = AlternateSetting;
84 1 EP0BCH = 0;
85 1 EP0BCL = 1;
86 1 return(TRUE); // Handled by user code
87 1 }
88
89 BOOL DR_GetStatus(void)
90 {
91 1 return(TRUE);
92 1 }
93
94 BOOL DR_ClearFeature(void)
95 {
96 1 return(TRUE);
97 1 }
98
99 BOOL DR_SetFeature(void)
100 {
101 1 return(TRUE);
102 1 }
103
104
105 #define VR_UPLOAD 0xc0 //1100
106 #define VR_DOWNLOAD 0x40 //0100
107
108 #define ZSUSB20DDB_VENDOR_REQUEST_LED_DISP 0xB0 //led显示
109 #define ZSUSB20DDB_VENDOR_REQUEST_KEY_READ 0xB1 //键盘读取
110 #define ZSUSB20DDB_VENDOR_REQUEST_EEPROM_ACCESS 0xB2 //EEPROM访问
111 #define ZSUSB20DDB_VENDOR_REQUEST_SRAM_ACCESS 0xB3 //SRAM访问
112 //#define ZSUSB20DDB_VENDOR_REQUEST_SERIAL_ACCESS 0xB4 //串口访问
113
114 ///////////////////////////////////////////////////////////////////////////
115
116 #define ZSUSB20DDB_VENDOR_REQUEST_PA_ON_OFF 0xB6 //PA的亮/灭控制
117 #define ZSUSB20DDB_VENDOR_REQUEST_AD 0xB7 //AD
C51 COMPILER V7.09 PERIPH 04/03/2007 16:19:05 PAGE 3
118 ///////////////////////////////////////////////////////////////////////////
119
120 BOOL DR_VendorCmnd(void)
121 {
122 1 WORD addr, len, bc; //这几个数都是WORD型变量
123 1 WORD i;
124 1 // BYTE flag;
125 1 // BYTE xdata *point;
126 1
127 1
128 1 ///////////////////////////////
129 1
130 1
131 1 // int j;
132 1
133 1 ///////////////////////////////
134 1
135 1 len = SETUPDAT[6]; //33页，是WLENGTH
136 1 len |= (SETUPDAT[7] << 8); //是长度的意思？左移动8位，然后或，是什么意思？
137 1 switch(SETUPDAT[1]) //这个数据bmRequest，是否就是说把B0到B6等地址与应用软件通信？
138 1 {
139 2 case ZSUSB20DDB_VENDOR_REQUEST_LED_DISP: //led显示
140 2 {
141 3 DispBuf[SETUPDAT[3]&3] = SETUPDAT[2]; //wValueH为第几位了led,wValueL为显示值
142 3
143 3
144 3 //////////////////////////////
145 3 /* PORTACFG=0x00;
146 3 OEA=0xFF;
147 3
148 3 j++;
149 3 if (j%2==0)
150 3 IOA=0x55;
151 3 if (j%2==1)
152 3 IOA=0xAA;
153 3 if (j>100)
154 3 j=0;*/
155 3
156 3 /////////////////////////////
157 3
158 3 break;
159 3 }
160 2 //------------------------------------------------------//
161 2
162 2 case ZSUSB20DDB_VENDOR_REQUEST_PA_ON_OFF: //-------------------
163 2 {
164 3
165 3 /* PORTACFG=0x00;
166 3 OEA=0xFF;
167 3 IOA = SETUPDAT[2];
168 3
169 3 */
170 3 //初始化A，B，C，D端口。
171 3 /*
172 3 j++;
173 3 if (j%2==0)
174 3 IOA=0x55;
175 3 if (j%2==1)
176 3 IOA=0xAA;
177 3 if (j>100)
178 3 j=0;
179 3 */
C51 COMPILER V7.09 PERIPH 04/03/2007 16:19:05 PAGE 4
180 3
181 3 /* IFCONFIG=0x00;
182 3
183 3 OED=0xFF;
184 3 IOD = SETUPDAT[2];
185 3 */
186 3
187 3
188 3 // PORTCCFG=0x00;
189 3 // OEC=0xFF;
190 3 // IOC = SETUPDAT[2];
191 3
192 3
193 3 break;
194 3 }
195 2 //有可能是通过SETUPDAT[2]或者 EP0BUF[0]这样的数组来进行数据传递的。
196 2 case ZSUSB20DDB_VENDOR_REQUEST_AD: //-------------------
197 2 {
198 3 char ad;
199 3
200 3 ad= AD_X;
201 3 // ad=IOC;
202 3 //最大 值好像只能是127,如果是128，变成－128，256时为0；
203 3 // EP0BUF[0] = ad; //把AD的值给 EP0BUF[0]
204 3
205 3 EP0BUF[0] = ad;
206 3 EP0BCH = 0;
207 3 EP0BCL = 1;
208 3
209 3
210 3 // SETUPDAT[2]=0x08;
211 3
212 3 break;
213 3 }
214 2 //------------------------------------------------------//
215 2
216 2
217 2
218 2
219 2
220 2
221 2 case ZSUSB20DDB_VENDOR_REQUEST_KEY_READ: //键盘读取
222 2 {
223 3 if(OKey_Value != 0xFF) //如果有键盘被按下去了
224 3 {
225 4 EP0BUF[0] = OKey_Value; //把按件的值给 EP0BUF[0]
226 4 EP0BCH = 0;
227 4 EP0BCL = 1; //EP0BCL = 1的意思是有数据的长度
228 4 OKey_Value = 0xFF;
229 4 }
230 3 else
231 3 {
232 4 EP0BCH = 0;
233 4 EP0BCL = 0;
234 4 }
235 3 break;
236 3 }
237 2 case ZSUSB20DDB_VENDOR_REQUEST_EEPROM_ACCESS:
238 2 case ZSUSB20DDB_VENDOR_REQUEST_SRAM_ACCESS:
239 2 {
240 3 addr = SETUPDAT[2]; // Get address and length得到地址和长度
241 3 addr |= SETUPDAT[3] << 8;
C51 COMPILER V7.09 PERIPH 04/03/2007 16:19:05 PAGE 5
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