📄 periph.lst
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C51 COMPILER V7.02b PERIPH 06/30/2004 15:13:17 PAGE 1
C51 COMPILER V7.02b, COMPILATION OF MODULE PERIPH
OBJECT MODULE PLACED IN periph.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE periph.c BROWSE DEBUG OBJECTEXTEND
stmt 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
24 //-----------------------------------------------------------------------------
25 // Task Dispatcher hooks
26 // The following hooks are called by the task dispatcher.
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
53 // The following hooks are called by the end point 0 device request parser.
54 //-----------------------------------------------------------------------------
55
C51 COMPILER V7.02b PERIPH 06/30/2004 15:13:17 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;
70 1 EP0BCH = 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];
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
106 #define VR_DOWNLOAD 0x40
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 BOOL DR_VendorCmnd(void)
115 {
116 1 WORD addr, len, bc,length;
117 1 WORD i;
C51 COMPILER V7.02b PERIPH 06/30/2004 15:13:17 PAGE 3
118 1 BYTE flag;
119 1 BYTE xdata *point;
120 1
121 1 len = SETUPDAT[6];
122 1 len |= (SETUPDAT[7] << 8);
123 1 switch(SETUPDAT[1])
124 1 {
125 2 case ZSUSB20DDB_VENDOR_REQUEST_LED_DISP: //led显示
126 2 {
127 3 DispBuf[SETUPDAT[3]&3] = SETUPDAT[2]; //wValueH为第几位了led,wValueL为显示值
128 3 break;
129 3 }
130 2 case ZSUSB20DDB_VENDOR_REQUEST_KEY_READ: //键盘读取
131 2 {
132 3 if(OKey_Value != 0xFF)
133 3 {
134 4 EP0BUF[0] = OKey_Value;
135 4 EP0BCH = 0;
136 4 EP0BCL = 1;
137 4 OKey_Value = 0xFF;
138 4 }
139 3 else
140 3 {
141 4 EP0BCH = 0;
142 4 EP0BCL = 0;
143 4 }
144 3 break;
145 3 }
146 2 case ZSUSB20DDB_VENDOR_REQUEST_EEPROM_ACCESS:
147 2 case ZSUSB20DDB_VENDOR_REQUEST_SRAM_ACCESS:
148 2 {
149 3 addr = SETUPDAT[2]; // Get address and length
150 3 addr |= SETUPDAT[3] << 8;
151 3 // Is this an upload command ?
152 3 if(SETUPDAT[0] == VR_UPLOAD)
153 3 {
154 4 while(len) // Move requested data through EP0IN
155 4 { // one packet at a time.
156 5 if(len < 64)
157 5 bc = len;
158 5 else
159 5 bc = 64;
160 5 // Is this a RAM upload ?
161 5 if(SETUPDAT[1] == ZSUSB20DDB_VENDOR_REQUEST_SRAM_ACCESS)
162 5 {
163 6 for(i=0; i<bc; i++)
164 6 *(EP0BUF+i) = *((BYTE xdata *)addr+i);
165 6 }
166 5 else
167 5 {
168 6 EEPROMRead(addr,bc,(WORD)EP0BUF);
169 6 }
170 5 EP0BCH = 0;
171 5 EP0BCL = (BYTE)bc; // Arm endpoint
172 5 addr += bc;
173 5 len -= bc;
174 5
175 5 while(EP0CS & bmEPBUSY);
176 5 }
177 4 }
178 3 // Is this a download command ?
179 3 else if(SETUPDAT[0] == VR_DOWNLOAD)
C51 COMPILER V7.02b PERIPH 06/30/2004 15:13:17 PAGE 4
180 3 {
181 4 while(len) // Move new data through EP0OUT
182 4 { // one packet at a time.
183 5 // Arm endpoint - do it here to clear (after sud avail)
184 5 EP0BCH = 0;
185 5 EP0BCL = 0; // Clear bytecount to allow new data in; also stops NAKing
186 5
187 5 while(EP0CS & bmEPBUSY);
188 5
189 5 bc = EP0BCL; // Get the new bytecount
190 5 // Is this a RAM download ?
191 5 if(SETUPDAT[1] == ZSUSB20DDB_VENDOR_REQUEST_SRAM_ACCESS)
192 5 {
193 6 for(i=0; i<bc; i++)
194 6 *((BYTE xdata *)addr+i) = *(EP0BUF+i);
195 6 }
196 5 else
197 5 EEPROMWrite(addr,bc,(WORD)EP0BUF);
198 5 addr += bc;
199 5 len -= bc;
200 5 }
201 4 }
202 3 break;
203 3 }
204 2 case ZSUSB20DDB_VENDOR_REQUEST_SERIAL_ACCESS:
205 2 {
206 3 flag = SETUPDAT[2];
207 3 // Is this an upload command ?
208 3 if(SETUPDAT[0] == VR_UPLOAD)
209 3 {
210 4 if(flag == 0) ES0 = 0;
211 4 else ES1 = 0;
212 4 length = ((flag == 0)?ReceiveCount0:ReceiveCount1);
213 4 point = ((flag == 0)?ReceiveBuf0:ReceiveBuf1);
214 4 if(length > len) //只能传输小于或等于请求长度的数据
215 4 length = len; //limit to the requested length
216 4 while(length) // Move requested data through EP0IN
217 4 {
218 5 // one packet at a time.
219 5 if(length < 64)
220 5 bc = length;
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