📄 serial1.lst
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C51 COMPILER V6.23a SERIAL1 04/15/2002 18:18:04 PAGE 1
C51 COMPILER V6.23a, COMPILATION OF MODULE SERIAL1
OBJECT MODULE PLACED IN Serial1.OBJ
COMPILER INVOKED BY: C:\keil\C51\BIN\c51.exe Serial1.c DB OE
stmt level source
1 //串口中断服务程序，仅需做简单调用即可完成串口输入输出的处理
2 //出入均设有缓冲区，大小可任意设置。
3 //*************************************************************************
4 #include "TestSerial.h"
5 #define BAUDRATE1 115200 // 用户定义的UART1 波特率
6
7 #define DB_SENDMAXSIZE1 0xf0
8 #define DB_RECMAXSIZE1 0xf0
9
10
11 extern unsigned char Count1ms;
12 bit FlagRecComm1,SendItComm1;
13 unsigned char CommSendBufferHead1, CommSendBufferTail1;
14 unsigned char xdata CommSendBuffer1[DB_SENDMAXSIZE1];
15 unsigned char CommRecBufferHead1, CommRecBufferTail1;
16 unsigned char xdata CommRecBuffer1[DB_RECMAXSIZE1];
17
18 /*****************************************************************
19 Function: OpenComm
20 Description: Sets the serial port up for debug use and resets
21 the ring buffer pointers to 0.
22 Parameters: None.
23 Returns: Nothing.
24 *****************************************************************/
25 // 0xfd=19200,0xfa=9600,0xf4=4800,0xe8=2400,0xd0=1200
26
27 void OpenComm1(void)
28 {
29 1 // SCON1=0xf0; /*设置串行口1工作于方式3,主从式*/
30 1 /*SM0_1 SM1_1 SM2_1 REN_1 TB8_1 RB8_1 TI_1 RI_1*/
31 1 /* 1 1 1 1 0 0 0 0 */
32 1 /*when SM2_1=1 receice addr */
33 1 TMOD |= 0x20; /* timer 1 mode 2: 8-Bit reload */
34 1 PCON|=0x10;//-->SMOD_1=1; /*bps double*/
35 1 CKCON |= 0x10; // Timer 1 derived from SYSCLK
36 1 TH1 = -(SYSCLK/BAUDRATE1/16); //11.0592 ->4800-115200
37 1 TR1 = 1; // Start Timer 1
38 1 SCON1 = 0x50; // Configure UART1 for mode 1, receiver enabled.
39 1 CommSendBufferHead1=CommSendBufferTail1=0; // set the head and tail to the base of the ring buffer
40 1 CommRecBufferHead1=CommRecBufferTail1=0; // set the head and tail to the base of the ring buffer
41 1 SCON1|=0x10;//--> REN1=1;
42 1 EIE2|=0x40; //--> ES1=1; // allow the serial interrupt
43 1 SendItComm1=1;
44 1 }
45 /*
46 void SendCommAddress1(char ch)
47 {
48 while (CommSendBufferTail1!=CommSendBufferHead1);
49 CommSendBufferTail1++;
50 if (CommSendBufferTail1==DB_SENDMAXSIZE1)
51 {
52 CommSendBufferTail1=0;
53 }
54 SCON1|=0x08;//-->TB8_1=1;
55 SBUF1=ch;
C51 COMPILER V6.23a SERIAL1 04/15/2002 18:18:04 PAGE 2
56 }
57 */
58 void SendCommChar1(char ch)
59 {
60 1 CommSendBuffer1[CommSendBufferTail1]=ch; // copy the current byte
61 1 CommSendBufferTail1++; // move the pointer
62 1 if (CommSendBufferTail1==DB_SENDMAXSIZE1)
63 1 { // check for pointer rollover
64 2 CommSendBufferTail1=0;
65 2 }
66 1 if (SendItComm1)
67 1 { // if a byte needs to be sent,
68 2 SCON1&=0xf7;//-->TB8_1=0;
69 2 SBUF1=CommSendBuffer1[CommSendBufferHead1]; // do it
70 2 }
71 1 return ;
72 1 }
73 /*
74 bit CommSendBufferIsEmpty1(void)
75 {
76 if (CommSendBufferTail1==CommSendBufferHead1) return true;
77 else return false;
78 }
79
80
81 bit CommRecBufferIsEmpty1(void)
82 {
83 if (CommRecBufferTail1==CommRecBufferHead1) return TRUE;
84 else return FALSE;
85 }
86 void ClearCommSendBuffer1(void)
87 {
88 CommSendBufferHead1=CommSendBufferTail1;
89 }
90 void ClearCommRecBuffer1(void)
91 {
92 CommRecBufferHead1=CommRecBufferTail1;
93 RecDataFlag1=0;
94 }
95 */
96 void SendCommBuffer1(unsigned char *base, unsigned char size)
97 {
98 1 unsigned char i=0;
99 1 if (size==0) return;
100 1 while (i<size)
101 1 { // copy bytes while the buffer has space and the block has data
102 2 CommSendBuffer1[CommSendBufferTail1]=base[i]; // copy the current byte
103 2 i++;
104 2 CommSendBufferTail1++; // move the pointer
105 2 if (CommSendBufferTail1==DB_SENDMAXSIZE1)
106 2 { // check for pointer rollover
107 3 CommSendBufferTail1=0;
108 3 }
109 2 }
110 1 if (SendItComm1)
111 1 { // if a byte needs to be sent,
112 2 SCON1&=0xf7;//-->TB8_1=0;
113 2 SBUF1=CommSendBuffer1[CommSendBufferHead1]; // do it
114 2 }
115 1 }
116
117 void SendCommString1(unsigned char *base)
C51 COMPILER V6.23a SERIAL1 04/15/2002 18:18:04 PAGE 3
118 {
119 1 unsigned char i=0;
120 1 if (base[0]==0) return;
121 1 for (;;)
122 1 {
123 2 if (base[i]==0) break;
124 2 CommSendBuffer1[CommSendBufferTail1]=base[i]; // copy the current byte
125 2 CommSendBufferTail1++; // move the pointer
126 2 if (CommSendBufferTail1==DB_SENDMAXSIZE1)
127 2 { // check for pointer rollover
128 3 CommSendBufferTail1=0;
129 3 }
130 2 i++;
131 2 }
132 1 if (SendItComm1)
133 1 { // if a byte needs to be sent,
134 2 SCON1&=0xf7;//-->TB8_1=0;
135 2 SBUF1=CommSendBuffer1[CommSendBufferHead1]; // do it
136 2 }
137 1 }
138
139 /*****************************************************************
140 Function: CommISR
141 Description: ISR for the serial port. Increments the ring
142 buffer head pointer and sends out the next byte if
143 the pointer has not caught the tail pointer.
144 Parameters: None.
145 Returns: Nothing.
146 *****************************************************************/
147 void CommISR1(void) interrupt 20
148 {
149 1 if (SCON1&0x02);//-->_testbit_(TI_1))
150 1 { // check and clear TI
151 2 CommSendBufferHead1++; // advance the head pointer
152 2 if (CommSendBufferHead1==DB_SENDMAXSIZE1)
153 2 { // watch out for rollover
154 3 CommSendBufferHead1=0;
155 3 }
156 2 if (CommSendBufferHead1!=CommSendBufferTail1)
157 2 { // check for more data in the buffer
158 3 SBUF1=CommSendBuffer1[CommSendBufferHead1]; // send the next byte
159 3 SendItComm1=0;
160 3 }
161 2 else
162 2 {
163 3 SendItComm1=1;
164 3 }
165 2 }
166 1 if (SCON1&0x01) //if (_testbit_(RI_1))
167 1 {
168 2 CommRecBuffer1[CommRecBufferTail1]=SBUF1; //receive data
169 2 CommRecBufferTail1++;
170 2 if (CommRecBufferTail1==DB_RECMAXSIZE1)
171 2 {
172 3 CommRecBufferTail1=0;
173 3 }
174 2 FlagRecComm1=1;
175 2 }
176 1 SCON1&=0xfc;
177 1 }
178
179 //*************************************
C51 COMPILER V6.23a SERIAL1 04/15/2002 18:18:04 PAGE 4
180 //read one byte from receive buffer
181
182 bit GetCommChar1(unsigned char idata *ch)
183 {
184 1 if (CommRecBufferTail1==CommRecBufferHead1) return 0;
185 1 *ch=CommRecBuffer1[CommRecBufferHead1];
186 1 CommRecBufferHead1++;
187 1 if (CommRecBufferHead1==DB_RECMAXSIZE1)
188 1 {
189 2 CommRecBufferHead1=0;
190 2 }
191 1 if (CommRecBufferTail1==CommRecBufferHead1) FlagRecComm1=0;
192 1 return 1;
193 1 }
194
195 /*
196 bit SendBufferIsEmpty1(void)
197 {
198 if (CommSendBufferTail1==CommSendBufferHead1) return TRUE;
199 else return FALSE;
200 }
201 bit RecBufferIsEmpty1(void)
202 {
203 if (CommRecBufferTail1==CommRecBufferHead1) return TRUE;
204 else return FALSE;
205 }
206 */
207 bit GetCommCharWait1(unsigned char idata *ch,unsigned char T) //T ms
208 {
209 1 Count1ms=T;*ch=0;
210 1 while (Count1ms)
211 1 {
212 2 if (CommRecBufferTail1!=CommRecBufferHead1) break;
213 2 }
214 1 if (Count1ms==0) return 0;
215 1 *ch=CommRecBuffer1[CommRecBufferHead1];
216 1 CommRecBufferHead1++;
217 1 if (CommRecBufferHead1==DB_RECMAXSIZE1)
218 1 {
219 2 CommRecBufferHead1=0;
220 2 }
221 1 if (CommRecBufferTail1==CommRecBufferHead1) FlagRecComm1=0;
222 1 return 1;
223 1 }
224
225 void ClearCommRecBuffer1(void)
226 {
227 1 CommRecBufferHead1=CommRecBufferTail1;
228 1 }
229
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 420 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = 480 ----
PDATA SIZE = ---- ----
DATA SIZE = 4 6
IDATA SIZE = ---- ----
BIT SIZE = 2 ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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