📄 main.lst
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C51 COMPILER V7.50 MAIN 12/25/2006 16:42:51 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN Main.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE Main.c BROWSE DEBUG OBJECTEXTEND
line level source
1 /*===============================================================================================
2 *
3 * Copyright (C) 2004
4 *
5 * This file is distributed in the hope that it will be useful, but WITHOUT
6 * WARRANTY OF ANY KIND.
7 *
8 * Author(s):
9 *
10 * DESCRIPTION: for nRF9E5
11 *
12 * nRF9E5/nRF24E1 range demo. Select receiver by shorting P03 and P05 and transmitter by shorting
13 * P05 and P06. Uncomment/comment the appropriate #define below to select nRF9E5 or nRF24E1.
14 *
15 * The transmitter continously send one byte packets. Each time the receiver receives a packet the
16 * P00 pin is set low (LED1 is turned on on the 9E5 eval board). At the same time a 20ms timer is
17 * started and if a new packets is not received before the 20ms time-out the P00 pin is set high
18 * (LED1 is turned off). If a new packet is received before the time-out a new 20ms time-out period
19 * is started.
20 *
21 * Please remember to turn off the RS232 switch on the receiver and transmitter boards. On the
22 * nRF9E5 board turn off all dip-switches on the transmitter and turn on only the LED1 switch on
23 * the receiver.
24 *
25 * COMPILER:
26 *
27 * This program has been tested with Keil C51 V7.09
28 *
29 * $Revision: 1 $
30 *
31 *==================================================================================================
32 */
33 // Comment out the following line for nRF24E1
34
35 #include <reg9e5.h>
36 #define POWER 3 // 0=min power...3 = max power
37 #define HFREQ 0 // 0=433MHz, 1=868/915MHz
38 #define CHANNEL 351 // Channel number: f(MHz) = (422.4+CHANNEL/10)*(1+HFREQ)
39
40 #define TIMEOUT 20 // 20ms time-out on LED
41 #define ON 1
42 #define OFF 0
43
44 static volatile unsigned char timer;
45 static volatile unsigned char t0lrel, t0hrel;
46
47 unsigned char bdata KeyValue;
48 sbit L0 = KeyValue^4;
49 sbit L1 = KeyValue^5;
50 sbit L2 = KeyValue^6;
51
52 sbit S0 =P0^5;
53 sbit S1 =P0^6;
54 sbit IO18b2 =P0^7;
55
C51 COMPILER V7.50 MAIN 12/25/2006 16:42:51 PAGE 2
56 sbit LED0 =P0^0;
57 sbit LED1 =P0^3;
58 sbit LED2 =P0^4;
59
60 unsigned char text[]="The temperature is ℃ \n ";
61
62 void Delay8us(volatile unsigned char n) //
63 {
64 1
65 1 while(n--);
66 1
67 1 }
68 void Delay100us(volatile unsigned char n)
69 {
70 1 unsigned char i;
71 1 while(n--)
72 1 for(i=0;i<33;i++)
73 1 ;
74 1 }
75
76 void Delayms(int n)
77 {
78 1 unsigned char i;
79 1 while(n--)
80 1 for(i=0;i<10;i++)
81 1 Delay100us(1);
82 1 }
83 // init 18B20
84 int init_1820()
85 {
86 1
87 1 int i;
88 1
89 1 // P0_ALT |= 0x06; // Select alternate functions on pins P0.1 and P0.2
90 1 // P0_DIR = 0x62; // P0.0 out,P0.1 input(RXD),P0.2 P0.3 P0.4 output,P0.5 P0.6 P0.7 input
91 1 IO18b2 = 1;
92 1 Delay100us(1);
93 1 IO18b2 = 0;
94 1 Delay100us(3);
95 1 IO18b2 = 1;
96 1
97 1 for(i=100;i > 0;i--)
98 1 {
99 2 // P0_ALT |= 0x06; // Select alternate functions on pins P0.1 and P0.2
100 2 // P0_DIR = 0xE2; // P0.0 out,P0.1 input(RXD),P0.2 P0.3 P0.4 output,P0.5 P0.6 P0.7 input
101 2 if(IO18b2 == 0)
102 2 {
103 3 Delay100us(1);
104 3 // printf (" ");
105 3 return 1;
106 3 }
107 2 }
108 1
109 1 return 0;
110 1 }
111 //Write 18B20
112 void Write_1820(unsigned char Wdata)
113 {
114 1 unsigned char i;
115 1
116 1 // P0_ALT |= 0x06; // Select alternate functions on pins P0.1 and P0.2
117 1 // P0_DIR = 0x62; // P0.0 out,P0.1 input(RXD),P0.2 P0.3 P0.4 output,P0.5 P0.6 P0.7 input
C51 COMPILER V7.50 MAIN 12/25/2006 16:42:51 PAGE 3
118 1 for(i=0;i < 8;i++)
119 1 {
120 2
121 2 IO18b2 = 0;
122 2 Delay8us(1);
123 2
124 2 if(Wdata & 0x01)
125 2 {
126 3 IO18b2 = 1;
127 3 }
128 2
129 2 Delay8us(10);
130 2
131 2 IO18b2 = 1;
132 2 Delay8us(1);
133 2 Wdata = Wdata >> 1;
134 2 }
135 1
136 1 }
137 //Read 18B20
138 unsigned char Read_1820()
139 {
140 1 unsigned char i,temp,j;
141 1 temp = 0x00;
142 1 for(i=0;i <8;i++)
143 1 {
144 2 // P0_ALT |= 0x06; // Select alternate functions on pins P0.1 and P0.2
145 2 // P0_DIR = 0x62; // P0.0 out,P0.1 input(RXD),P0.2 P0.3 P0.4 output,P0.5 P0.6 P0.7 inpu
-t
146 2
147 2 IO18b2 = 0;
148 2 Delay8us(1);
149 2 IO18b2 = 1;
150 2
151 2 // P0M1 = 0x08; //push pull except RX
152 2 // P0M2 = 0x00;
153 2 for(j=0;j < 2;j++ );
154 2
155 2 // P0_ALT |= 0x06; // Select alternate functions on pins P0.1 and P0.2
156 2 // P0_DIR = 0xE2; // P0.0 out,P0.1 input(RXD),P0.2 P0.3 P0.4 output,P0.5 P0.6 P0.7 input
157 2
158 2 if(IO18b2 == 1)
159 2 {
160 3 temp = temp | 0x80;
161 3 }
162 2 Delay8us(10);
163 2
164 2 // P0M1 = 0x00; //push pull except RX
165 2 // P0M2 = 0x00;
166 2 // P0_ALT |= 0x06; // Select alternate functions on pins P0.1 and P0.2
167 2 // P0_DIR = 0x62; // P0.0 out,P0.1 input(RXD),P0.2 P0.3 P0.4 output,P0.5 P0.6 P0.7 input
168 2 IO18b2 = 1;
169 2
170 2 // P0_ALT |= 0x06; // Select alternate functions on pins P0.1 and P0.2
171 2 // P0_DIR = 0xE2; // P0.0 out,P0.1 input(RXD),P0.2 P0.3 P0.4 output,P0.5 P0.6 P0.7 input
172 2 // Delay10us(1);
173 2 while(!IO18b2);
174 2 if(i==7)
175 2 {
176 3 return temp;
177 3 }
178 2 else
C51 COMPILER V7.50 MAIN 12/25/2006 16:42:51 PAGE 4
179 2 {
180 3 temp = temp >> 1;
181 3 }
182 2
183 2 }
184 1
185 1 }
186 //Get temp
187 void Get_temperature()
188 {
189 1 unsigned char Send[4];
190 1
191 1 init_1820();
192 1 Delayms(1);
193 1 Write_1820(0xCC);
194 1 Delayms(1);
195 1
196 1 Write_1820(0x44);
197 1
198 1 Delayms(700);
199 1
200 1 init_1820();
201 1 Delayms(1);
202 1
203 1 Write_1820(0xCC);
204 1 Delayms(1);
205 1
206 1 Write_1820(0xBE);
207 1 Delayms(1);
208 1
209 1 Send[0]=Read_1820();
210 1 Send[1]=Read_1820();
211 1
212 1 // sendtoPC(Send[0]);
213 1 // sendtoPC(Send[1]);
214 1
215 1
216 1 if(Send[1] > 0x0F) text[20] = '-';
217 1 else text[20] = '+';
218 1
219 1 Send[1] = Send[1] & 0x07;
220 1
221 1 if(text[20] == '+')
222 1 {
223 2
224 2 Send[1] = Send[1] & 0x07;
225 2
226 2 Send[2] = (Send[1]*16) + ((float)Send[0]*0.0625);
227 2
228 2 text[21] = Send[2]/100 + 0x30;
229 2
230 2 text[22] = Send[2]/10 + 0x30;
231 2
232 2 text[23] = Send[2]%10 + 0x30;
233 2 }
234 1 else
235 1 {
236 2
237 2 Send[1] = Send[1] ^ 0xFF;
238 2 Send[2] = Send[2] ^ 0xFF;
239 2
240 2 Send[2] = (Send[1]*16) + ((float)Send[0]*0.0625);
C51 COMPILER V7.50 MAIN 12/25/2006 16:42:51 PAGE 5
241 2
242 2 text[21] = Send[2]/100 + 0x30;
243 2
244 2 text[22] = Send[2]/10 + 0x30;
245 2
246 2 text[23] = Send[2]%10 + 0x30;
247 2 }
248 1
249 1 // sendtoPC(Send[2]);
250 1 }
251
252 void PutChar(char c)
253 {
254 1 while(!TI)
255 1 ;
256 1 TI = 0;
257 1 SBUF = c;
258 1 }
259
260 void PutString(const char *s)
261 {
262 1 while(*s != 0)
263 1 PutChar(*s++);
264 1 }
265
266 unsigned char SpiReadWrite(unsigned char b)
267 {
268 1 EXIF &= ~0x20; // Clear SPI interrupt
269 1 SPI_DATA = b; // Move byte to send to SPI data register
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