📄 isd1700.lst
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C51 COMPILER V7.06 ISD1700 05/10/2009 22:59:46 PAGE 1
C51 COMPILER V7.06, COMPILATION OF MODULE ISD1700
OBJECT MODULE PLACED IN ISD1700.OBJ
COMPILER INVOKED BY: D:\dujianfei\Keil C\C51\BIN\C51.EXE ISD1700.c BROWSE DEBUG OBJECTEXTEND
stmt level source
1 /*
2 实验说明：
3 接线：
4 1、将模块上的INT与CPU板上的INT0相连;
5 2、将模块上的DO与CPU板上的P11相连;
6 3、将模块上的DI与CPU板上的P12相连;
7 4、将模块上的CLK与CPU板上的P10相连;
8 5、将模块上的SS与CPU板上的P14相连;
9 6、将试验箱上开关KK1的输出K1与CPU板上的P15相连;
10 7、将试验箱上开关KK2的输出K2与CPU板上的P16相连;
11 8、将试验箱上开关KK3的输出K3与CPU板上的P17相连;暂时不用接。
12 实验过程：
13 检查接线正确无误后，加电，运行程序ISD1700，将开关KK1、KK2、KK3拨到低电平侧（L侧）
14 先将KK1拨到H侧并对MIC讲话，结束后将开关KK1拨回L侧。将拨码开关KK2拨到H侧，开始放音，直至结束。
15 如果想重放，先将开关KK2拨到L侧，在拨到H侧，则重复放音。
16
17 */
18 #include <reg51.h>
19 //sbit INT = P1^0; //Port to Receive interrupt signal from ISD1700
20 sbit DO = P1^1; //Port to Receive data from ISD1700
21 sbit DI = P1^2; //Port to Sent data to ISD1700
22 sbit CLK = P1^0; //Output SPI clock
23 sbit SS = P1^4; //Reset this port to enable SPI of ISD1700
24 sbit rec = P1^5; //Record from Line In or Mic selected by sel
25 sbit play = P1^6; //Playing while end
26 sbit sel = P1^7; //select source of audio
27 unsigned char PU_cmd[] = {0x01,0x00}; //Power on
28 unsigned char STOP_cmd[] = {0x02,0x00}; //Stop current operation
29 unsigned char RESET_cmd[] = {0x03,0x00}; //Stop current operation
30 unsigned char CLR_INT_cmd[] = {0x04,0x00}; //clearn INT to zero
31 unsigned char RD_STA_cmd[] = {0x05,0x00,0x0}; //Read status byte
32 unsigned char RD_PLY_PTR_cmd[] = {0x06,0x00,0x0,0x0}; //Read play point
33 unsigned char PD_cmd[] = {0x07,0x00}; //Power off
34 unsigned char RD_REC_PTR_cmd[] = {0x08,0x0,0x0,0x0}; //Read record point
35 unsigned char DEVID_cmd[] = {0x09,0x0,0x0}; //Read device ID
36 unsigned char PLAY_cmd[] = {0x40,0x0}; //begin to play here
37 unsigned char REC_cmd[] = {0x41,0x0}; //begin to record here
38 unsigned char ERASE_cmd[] = {0x42,0x0}; //Erase the current sigment
39 unsigned char G_ERASE_cmd[] = {0x43,0x0}; //Erase all chip
40 unsigned char RD_APC_cmd[] = {0x44,0x0,0x0,0x0}; //Read register APC
41 unsigned char WR_APC1_dir_cmd[] = {0x45,0x7,0x4}; //Enable mode direct in SPI
42 unsigned char WR_APC1_mic_cmd[] = {0x45,0x47,0x4}; //Disable mode direct in SPI
43 unsigned char WR_APC2_cmd[] = {0x65}; //Write config data to APC,refer to function WriteApc(unsigned i
-nt dat)
44 unsigned char FWD_cmd[] = {0x48,0x0}; //Move the current point to next
45 unsigned char CHK_MEM_cmd[] = {0x49,0x0}; //Check the loop memory
46 unsigned char EXTCLK_cmd[] = {0x4a,0x0}; //Enable the ext clock
47 bit idle = 1; //Chip is in idle status
48 bit recflag = 0; //flag of record
49 bit audinflag = 0; //flag mode audio in
50 unsigned char *pStatus; //Status of chip
51 void Delay(unsigned int time)
52 {
53 1 while(time-->0);
54 1 }
C51 COMPILER V7.06 ISD1700 05/10/2009 22:59:46 PAGE 2
55 void SpiIni(void) //Initialize SPI port
56 {
57 1 SS = 1;
58 1 CLK = 1;
59 1 DI = 0;
60 1 Delay(10);
61 1 }
62 unsigned char WriteByte(unsigned char dat) //write a byte to ISD1700, Read a byte from ISD
63 {
64 1 char num = 8;
65 1 unsigned char tmp = 0;
66 1 DO = 1;
67 1 while(num-->0)
68 1 {
69 2 CLK = 0;
70 2 Delay(20);
71 2 DI = (dat&0x1)?1:0;
72 2 dat >>=1;
73 2 tmp >>= 1;
74 2 tmp |= (DO == 0) ? 0x80:0x0;
75 2 Delay(20);
76 2 CLK = 1;
77 2 Delay(80);
78 2 }
79 1 //Delay(1000);
80 1 return tmp;
81 1 }
82
83 void Write2ISD1700(unsigned char num,unsigned char * pBuff,unsigned char *pReceive) //
84 {
85 1 SS = 0;
86 1 while(num-->0)
87 1 {
88 2 *(pReceive++) = WriteByte(*(pBuff++));
89 2 }
90 1 SS = 1;
91 1 }
92 void Ext0Inter(void) interrupt 0
93 {
94 1 unsigned char IntClrCmd[] = {0x04,0x0};
95 1 idle = 1;
96 1 Write2ISD1700(2,IntClrCmd,pStatus); //Clearn INTERRUPT and EOM flag
97 1 }
98 void PlayCurrent(void) //Start to play at current segment
99 {
100 1 while(!idle);
101 1 idle = 0;
102 1 Write2ISD1700(2,PLAY_cmd,pStatus); //Start to play at current segment
103 1 }
104 void Record(void) //Start to play at current segment
105 {
106 1 while(!idle);
107 1 idle = 0;
108 1 recflag = 1;
109 1 Write2ISD1700(2,REC_cmd,pStatus); //Start to play at current segment
110 1 }
111 void EraseAll(void) //Start to play at current segment
112 {
113 1 while(!idle);
114 1 idle = 0;
115 1 Write2ISD1700(2,G_ERASE_cmd,pStatus); //Start to play at current segment
116 1 }
C51 COMPILER V7.06 ISD1700 05/10/2009 22:59:46 PAGE 3
117 void Stop(void)
118 {
119 1 Write2ISD1700(2,STOP_cmd,pStatus); //Start to play at current segment
120 1 recflag = 0;
121 1 }
122 void AudioSeclect(bit s)
123 {
124 1 if(s) Write2ISD1700(3,WR_APC1_dir_cmd,pStatus);
125 1 else Write2ISD1700(3,WR_APC1_mic_cmd,pStatus);
126 1 audinflag = 0;
127 1 }
128 void main(void)
129 {
130 1 unsigned char *pDevid,Cmd[] = {0xa5};
131 1 bit selbak = 0,selchange = 0;
132 1 SpiIni();
133 1 IT0 = 1; EX0 = 1; EA=1;
134 1 Write2ISD1700(2,RESET_cmd,pStatus); //Reset the chip
135 1 Write2ISD1700(2,PU_cmd,pStatus); //Power on
136 1 Write2ISD1700(3,DEVID_cmd,pDevid);
137 1 EraseAll();
138 1 while(1)
139 1 {
140 2 /*
141 2 if(sel != selbak)
142 2 {
143 2 selbak = sel;
144 2 selchange = 1;
145 2 }
146 2 */
147 2 if(rec&&!play)
148 2 {
149 3 /*
150 3 if(selchange)
151 3 {
152 3 AudioSeclect(sel);
153 3 selchange = 0;
154 3 }
155 3 */
156 3 Record();
157 3 while(rec);
158 3 }
159 2 if(recflag) Stop();
160 2 if(play&&!rec)
161 2 {
162 3 PlayCurrent();
163 3 while(play);
164 3 }
165 2 }
166 1 }
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 535 ----
CONSTANT SIZE = 3 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = 52 13
IDATA SIZE = ---- ----
BIT SIZE = 3 3
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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