📄 32musb.lst
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C51 COMPILER V7.20 32MUSB 03/21/2007 13:33:19 PAGE 1
C51 COMPILER V7.20, COMPILATION OF MODULE 32MUSB
OBJECT MODULE PLACED IN 32MUSB.OBJ
COMPILER INVOKED BY: C:\Program Files\keil\C51\BIN\C51.EXE 32MUSB.c LARGE BROWSE DEBUG OBJECTEXTEND
line level source
1 /*
2 * Copyright (c) 2004,北京博创兴业科技有限公司
3 * All rights reserved.
4 *
5 * 文件名称：32MUSB.c
6 * 文件标识：32MUSB
7 * 摘 要：主函数
8 *
9 * 当前版本：2.0
10 * 作 者：Kent
11 * 完成日期：2004年5月20日
12 *
13 * 取代版本：1.1
14 * 原作者 ：Frank
15 * 完成日期：2003年8月10日
16 */
17
18 #include "REGSND1.H"
19 #include "atmelusbci.h"
20 #include "uart.h"
21 #include "usbdisk.h"
22 #include "bulk_only.h"
23 #include "fat16.h"
24 #include "flash.h"
25
26 //int m=0;
27 extern unsigned char bulk_CSW[];
28 extern unsigned char bulk_state;//记录USB传输过程中传输状态
29 //extern unsigned char Bulk_Out_Buf[];//Bulk-Out端点缓存区
30 extern unsigned char Page_Buf[];//页(扇区)缓存区
31 extern unsigned char FirstTransaction;
32 extern unsigned char *BulkPoint;
33 extern unsigned char *BulkStartPoint;
34 //设备描述符
35 code unsigned char Device_Descriptor[18] = {
36 0x12, //0x12
37 0x01, //DEVICE descriptor
38 0x10, 0x01, //spec rev level (BCD) 1.0
39 0x0, //device class
40 0x0, //device subclass
41 0x0, //device protocol
42 0x20, //max packet size
43 0x05, 0x82, //National's vendor ID
44 0x00, 0x11, //National's product ID
45 0x00, 0x00, //National's revision ID
46 0, //index of manuf. string
47 0, //index of prod. string
48 0, //index of ser. # string
49 0x01 //number of configs.
50 };
51 //配置描述符
52 code unsigned char Configuration_Descriptor_All[32] = {
53
54 9,//Size of Descriptor in Bytes
55 2,//Configuration Descriptor (0x02)
C51 COMPILER V7.20 32MUSB 03/21/2007 13:33:19 PAGE 2
56 0x20,//Total length in bytes of data returned LSB
57 0x00,//MSB
58 1,//Number of Interfaces
59 1,//Value to use as an argument to select this configuration
60 0,//Index of String Descriptor describing this configuration
61 0x80,
62 0xfa,//Maximum Power Consumption in 2mA units
63
64 9,
65 4,
66 0,//the index of the interface descriptor Number of Interface
67 0,//Value used to select alternative setting
68 2,//EndPoint Number Used in this Descriptor
69 8,//Class Code (Assigned by USB Org)
70 6, //interface subclass1=RBC,2=SFF,3=QIC,4=UFI,5=SFF,6=SCSI
71 0x50,//bulk 0nly Transport
72 0,//Index of String Descriptor Describing this interface
73
74 //Bulk-in Endpoint
75 0x07, //length of this desc.
76 0x05, //ENDPOINT descriptor TYPE
77 0x81, //address (IN) Endpoint 4 84
78 0x02, //attributes (BULK)
79 0x40, 0x00, //max packet size (64)
80 0x0, //Does not apply to Bulk endpoints
81
82 //Bulk-out Endpoint
83 0x07, //length of this desc.
84 0x05, //ENDPOINT descriptor TYPE
85 0x02, //address (OUT) Endpoint 5 05
86 0x02, //attributes (BULK)
87 0x40, 0x00, //max packet size (64)
88 0x0 //Does not apply to Bulk endpoints
89 };
90
91 //用于存放歌曲列表的数组
92 unsigned char SONG[88] = {'M', 'O', 'O', 'N', ' ', ' ', ' ', ' ', 'T', 'X', 'T'};
93
94 //MP3有关的变量*********************
95 #define VOLUME 1
96 #define EFFECTION 2
97 #define SELECTSONG 3
98 #define PLAY 1
99 #define STOP 0
100 unsigned char CurrentFun = SELECTSONG;
101 unsigned char PlayState = STOP;
102 unsigned char ChangeSong = 0;
103
104 unsigned char NowPlaying = 0;
105 unsigned char NumofSong = 0;
106 extern long int DataRead;
107 //***************************
108
109 //USB DISK
110 //读端点数据
111 unsigned char ReadEp(unsigned char EpNum, unsigned char *Data)
112 {
113 1 unsigned char i = 0, nLength;
114 1 UEPNUM = EpNum;//指向相应端点
115 1 BulkStartPoint = Data;
116 1 nLength = UBYCTX;//读取端点数据长度
117 1
C51 COMPILER V7.20 32MUSB 03/21/2007 13:33:19 PAGE 3
118 1 while (nLength--)
119 1 {
120 2 if (UEPNUM == 2)
121 2 {
122 3 *(BulkPoint++) = UEPDATX;
123 3 i++;
124 3 }
125 2 else
126 2 {
127 3 Data[i++] = UEPDATX;//*printuf("%x ",Data[i]);*/}//依次读取端点收到的数据
128 3 }
129 2 }
130 1
131 1 UEPSTAX &= ~(RXOUTB0 | RXOUTB1 | RXSETUP);//清中断标志
132 1 return (i);//返回读取到的数据的长度
133 1 }
134
135 //向端点0写数据
136 void WriteEp(unsigned char EpNum, unsigned char nLength, unsigned char *Data)
137 {
138 1 unsigned char i=0;
139 1
140 1 UEPNUM = EpNum;//指向相应端点
141 1 UEPSTAX |= DIR;//设置方向为写
142 1
143 1 while (nLength--)
144 1 {
145 2 UEPDATX = Data[i++];//将数据写入端点
146 2 }
147 1
148 1 UEPSTAX |= TXRDY;//发送数据Sending the data,this action will switch between bank0 and bank1
149 1
150 1 while (!(UEPSTAX & TXCMP)) ;//等待发送完成
151 1
152 1 UEPSTAX &= (~(TXCMP));//清中断标志clear TXCMP
153 1 }
154
155 //写Bulk端点
156 void WriteEpBulk(unsigned char EpNum, unsigned char nLength, unsigned char *Data)
157 {
158 1 unsigned char i;
159 1
160 1 UEPNUM = EpNum;//指向相应端点
161 1 UEPSTAX |= DIR;//设置方向为写Set for status of a Control In transaction
162 1
163 1 for (i=0; i<nLength; i++)
164 1 {
165 2 UEPDATX = Data[i];//将数据写入端点
166 2 }
167 1
168 1 UEPSTAX |= TXRDY;//发送数据Sending the data,this action will switch between bank0 and bank1
169 1
170 1 }
171
172 void Get_Status()
173 {
174 1 printu("Get_Status");
175 1 }
176
177 void Clear_Feature()
178 {
179 1 printu("Clear_Feature");
C51 COMPILER V7.20 32MUSB 03/21/2007 13:33:19 PAGE 4
180 1 }
181
182 void Set_Feature()
183 {
184 1 printu("Set_Feature");
185 1 }
186
187 void Set_Address(unsigned char EpNum)
188 {
189 1 // unsigned char Test[] = {0};
190 1 WriteEp(0, 0, 0);//在Status阶段过后才能改变设备地址
191 1
192 1 USBADDR |= EpNum;//设置地址
193 1 USBADDR |= FEN;//地址使能
194 1 USBCON |= FADDEN;
195 1
196 1 // printuf("\nSet_Address : %x\n", USBADDR);
197 1 }
198
199 void Get_Descriptor(unsigned char DesType, unsigned char nLength)
200 {
201 1 if (DesType == 0x01)
202 1 {
203 2 WriteEp(0, 18, Device_Descriptor);//提供设备描述符
204 2 }
205 1 if ((DesType == 0x02) && (nLength == 0x09))
206 1 {
207 2 WriteEp(0, 9, Configuration_Descriptor_All);//提供配置描述符
208 2 }
209 1 //提供全部描述符
210 1 if ((DesType == 0x02) && (nLength == 0xff))
211 1 {
212 2 WriteEp(0, 32, Configuration_Descriptor_All);
213 2 WriteEp(0, 2, &Device_Descriptor[4]);
214 2 }
215 1 //提供全部描述符
216 1 if ((DesType == 0x02) && (nLength == 0x20))
217 1 {
218 2 WriteEp(0, 32, Configuration_Descriptor_All);
219 2 }
220 1
221 1 // printu("Get_Descriptor\n");
222 1 }
223
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