📄 usbuart0.lst
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C51 COMPILER V8.08 USBUART0 05/11/2008 16:41:24 PAGE 1
C51 COMPILER V8.08, COMPILATION OF MODULE USBUART0
OBJECT MODULE PLACED IN USBUART0.OBJ
COMPILER INVOKED BY: E:\软件\Keil\C51\BIN\C51.EXE USBUART0.c BROWSE DEBUG OBJECTEXTEND
line level source
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6 //使用F330,串口为P0.4,P0.5;操作方法：插上短路环J11，拔掉J12，连上USB线。
7 //-----------------------------------------------------------------------------
8 // UART.c
9 //-----------------------------------------------------------------------------
10
11
12 //-----------------------------------------------------------------------------
13 // 所包含的头文件
14 //------------------------------------------------------------------------
15
16 #include <c8051f330.h>
17 #include <stdio.h>
18 #include <lcddriver.h>
19 #define ADDR 0X01
20 //-----------------------------------------------------------------------------
21 // 常量定义
22 //-----------------------------------------------------------------------------
23
24 #define SYSCLK 24500000 // 系统工作频率
25 #define BAUDRATE 9600 // 串口工作波特率
26 #define TIMER2_RATE 1000 // 定时器2溢出标志位频率
27 #define uchar unsigned char
28 #define uint unsigned int
29
30 //-----------------------------------------------------------------------------
31 // F33x’定时器2的16位SFR
32 //-----------------------------------------------------------------------------
33
34 sfr16 TMR2RL = 0xca;
35 sfr16 TMR2 = 0xcc;
36
37 //-----------------------------------------------------------------------------
38
39 // 功能函数
40 //-----------------------------------------------------------------------------
41
42 void SYSCLK_Init (void);
43 void PORT_Init (void);
44 void UART0_Init (void);
45 void Timer2_Init (int);
46 bit ReceiveBit;
47 bit recieve_flag=0;
48 unsigned char temp;
49 unsigned char xdata table[18] ={"welcome 231"};
50 uchar i,point,aba;
51 uint ctr1,crc;
52 uchar data sbufda,tx_count,sent,kcc1,kcc2,aaa,bbb;
53 uchar data rbuf[8];
54 uchar data tbuf[18];
55 /*void delay(unsigned int m)
C51 COMPILER V8.08 USBUART0 05/11/2008 16:41:24 PAGE 2
56 {
57 unsigned int n;
58 n=0;
59 while(n<m)
60 {n++;}
61 return;
62 }*/
63 uint crc16(uchar *str,uint num);
64 //-----------------------------------------------------------------------------
65 // 主程序
66 //-----------------------------------------------------------------------------
67
68 void main (void) {
69 1
70 1 char i=0;
71 1 PCA0MD &= ~0x40; // 禁止看门狗
72 1
73 1 PORT_Init(); // 初始化端口I/O
74 1
75 1 SYSCLK_Init (); // 初始化系统时钟
76 1
77 1 Timer2_Init(SYSCLK/TIMER2_RATE); // 初始化 Timer 2
78 1
79 1 UART0_Init(); // 串口初始化
80 1 Initialize_LCD();
81 1 EA=1;
82 1 ES0=1;
83 1 while(1)
84 1 {
85 2
86 2 if(recieve_flag)
87 2 {
88 3 WriteCommand(0x80,1); //写地址
89 3 for( i=0;i<16 ; i++)
90 3 {
91 4
92 4
93 4 WriteData(tbuf[i]);
94 4
95 4
96 4 }
97 3 WriteCommand(0xc0,1); //写地址
98 3 WriteData(tbuf[16]);
99 3 WriteData(tbuf[17]);
100 3 recieve_flag=0;
101 3 }
102 2 }
103 1
104 1 /*
105 1 while(ReceiveBit==1)
106 1 {
107 1 ES0=0;
108 1 EA=0;
109 1 ReceiveBit=0;
110 1 //delay(60000);
111 1 //delay(60000);
112 1 //delay(60000);
113 1 SBUF0=temp;
114 1 while(TI0==0);
115 1 TI0=0;
116 1 //delay(60000);
117 1 // delay(60000);
C51 COMPILER V8.08 USBUART0 05/11/2008 16:41:24 PAGE 3
118 1 //delay(60000);
119 1 ES0=1;
120 1 EA=1;
121 1 }
122 1 }
123 1 //printf (" KEN :) Happy new year! \n "); // 输出字符 */
124 1
125 1 }
126
127
128
129 //-----------------------------------------------------------------------------
130 // 端口初始化
131 //-----------------------------------------------------------------------------
132 //
133 // Configure the Crossbar and GPIO ports.
134 //
135 // P0.4 - UART TX
136 // P0.5 - UART RX
137 // P3.3 - LED
138
139 void PORT_Init (void)
140 {
141 1 //P0SKIP |= 0x01;
142 1 // P0MDIN |= 0x01; // 配置P0.0为模拟出入
143 1 P0MDOUT |= 0x10; // 使能 UTX 为推挽输出
144 1 // P1MDOUT |= 0x08; // 使能 LED 为推挽输出
145 1 XBR0 = 0x01; // 使能 UART on P0.4(TX) and P0.5
146 1
147 1 XBR1 = 0x40;
148 1 }
149 //-----------------------------------------------------------------------------
150 // 系统时钟初始化
151 //-----------------------------------------------------------------------------
152
153
154 void SYSCLK_Init (void)
155 {
156 1 OSCICN |= 0x03; // 配置内部振荡器的的最大频率
157 1
158 1 RSTSRC = 0x04; // 使能始终丢失检测寄存器
159 1
160 1 }
161
162 //-----------------------------------------------------------------------------
163 // 串口初始化
164 //-----------------------------------------------------------------------------
165
166
167 void UART0_Init (void)
168 {
169 1 SCON0 = 0x10;
170 1 if (SYSCLK/BAUDRATE/2/256 < 1) {
171 2
172 2 TH1 = -(SYSCLK/BAUDRATE/2);
173 2 CKCON &= ~0x0B;
174 2 CKCON |= 0x08;
175 2 } else if (SYSCLK/BAUDRATE/2/256 < 4) {
176 2 TH1 = -(SYSCLK/BAUDRATE/2/4);
177 2 CKCON &= ~0x0B;
178 2 CKCON |= 0x09;
179 2 } else if (SYSCLK/BAUDRATE/2/256 < 12) {
C51 COMPILER V8.08 USBUART0 05/11/2008 16:41:24 PAGE 4
180 2 TH1 = -(SYSCLK/BAUDRATE/2/12);
181 2 CKCON &= ~0x0B;
182 2 } else {
183 2 TH1 = -(SYSCLK/BAUDRATE/2/48);
184 2 CKCON &= ~0x0B;
185 2 CKCON |= 0x02;
186 2 }
187 1
188 1 TL1 = TH1;
189 1 TMOD &= ~0xf0;
190 1 TMOD |= 0x20;
191 1 TR1 = 1;
192 1 // TI0 = 1;
193 1 }
194 //-----------------------------------------------------------------------------
195 // 时钟2中断
196 //-----------------------------------------------------------------------------
197
198 void Timer2_Init (int counts)
199 {
200 1 TMR2CN = 0x00; // 停止时钟2;清除 TF2H 和TF2L;
201 1
202 1 CKCON |= 0x10;
203 1 TMR2RL = -counts;
204 1 TMR2 = TMR2RL;
205 1 ET2 = 0;
206 1 TR2 = 1;
207 1 }
208 void UATR0_ISR(void) interrupt 4
209 {
210 1 if(TI0)
211 1 {
212 2
213 2 TI0=0;
214 2 sbufda++;
215 2 if(sbufda<=tx_count)
216 2 {
217 3 ctr1=0; //发送
218 3 SBUF0=tbuf[sbufda];
219 3 }
220 2 else
221 2 {
222 3 ctr1=1; //接收
223 3 sbufda=0;
224 3 recieve_flag=1;
225 3 }
226 2 }
227 1 //temp=SBUF0;
228 1 //ReceiveBit=1;
229 1
230 1
231 1 else
232 1 {
233 2 RI0=0;
234 2 rbuf[0]=rbuf[1];
235 2 rbuf[1]=rbuf[2];
236 2 rbuf[2]=rbuf[3];
237 2 rbuf[3]=rbuf[4];
238 2 rbuf[4]=rbuf[5];
239 2 rbuf[5]=rbuf[6];
240 2 rbuf[6]=rbuf[7];
241 2 rbuf[7]=SBUF0;
C51 COMPILER V8.08 USBUART0 05/11/2008 16:41:24 PAGE 5
242 2 if(rbuf[0]==ADDR)
243 2 {
244 3 crc=crc16(rbuf,8);
245 3 if(crc==0)
246 3 {
247 4 switch(rbuf[1])
248 4 {
249 5 case 0x03 :
250 5 tbuf[0]=rbuf[0];
251 5 tbuf[1]=rbuf[1];
252 5 tbuf[2]=(rbuf[5])<<1;
253 5 point=tbuf[2];
254 5 sent=3;
255 5 aba=rbuf[3];
256 5 for(i=0;i<point;i++)
257 5 {
258 6 tbuf[sent]=table[aba];
259 6 aba++;
260 6 sent++;
261 6 }
262 5 crc=crc16(tbuf,sent);
263 5 sent++;
264 5 tbuf[sent]=crc/256;
265 5 sent--;
266 5 tbuf[sent]=crc%256;
267 5 ctr1=0;
268 5 SBUF0=tbuf[0];
269 5 ES0=1;
270 5 sent++;
271 5 tx_count=sent;
272 5 sbufda=0;
273 5
274 5 break;
275 5 case 0x04 :
276 5 tbuf[0]=rbuf[0];
277 5 tbuf[1]=rbuf[1];
278 5 tbuf[2]=2;
279 5 tbuf[3]=kcc1;
280 5 tbuf[4]=kcc2;
281 5 sent=5;
282 5 crc=crc16(tbuf,sent);
283 5 sent++;
284 5 tbuf[sent]=crc/256;
285 5 sent--;
286 5 tbuf[sent]=crc%256;
287 5 ctr1=0;
288 5 SBUF0=tbuf[0];
289 5 ES0=1;
290 5 sent++;
291 5 tx_count=sent;
292 5 sbufda=0;
293 5 break;
294 5 case 0x06 :
295 5 tbuf[0]=rbuf[0];
296 5 tbuf[1]=rbuf[1];
297 5 tbuf[2]=rbuf[2];
298 5 tbuf[3]=rbuf[3];
299 5 tbuf[4]=rbuf[4];
300 5 tbuf[5]=rbuf[5];
301 5 tbuf[6]=rbuf[6];
302 5 tbuf[7]=rbuf[7];
303 5 aaa=rbuf[4];
C51 COMPILER V8.08 USBUART0 05/11/2008 16:41:24 PAGE 6
304 5 bbb=rbuf[5];
305 5 ctr1=0;
306 5 SBUF0=tbuf[0];
307 5 ES0=1;
308 5 sent++;
309 5 tx_count=sent;
310 5 sbufda=0;
311 5 break;
312 5 default:
313 5 break;
314 5 }
315 4 }
316 3 }
317 2 }
318 1 }
319
320
321 uint crc16(uchar *str,uint num)
322 {
323 1 uint i1,j1,c1,crc1;
324 1 crc1=0xffff;
325 1 for(i1=0;i1<num;i1++)
326 1 {
327 2 c1=str[i1]&0x00ff;
328 2 crc1^=c1;
329 2 for(j1=0;j1<8;j1++)
330 2 {
331 3 if(crc1&0x0001)
332 3 {
333 4 crc1>>=1;
334 4 crc1^=0xa001;
335 4 }
336 3 else
337 3 crc1>>=1;
338 3 }
339 2 }
340 1 return(crc1);
341 1 }
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 595 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = 18 ----
PDATA SIZE = ---- ----
DATA SIZE = 41 8
IDATA SIZE = ---- ----
BIT SIZE = 2 ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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