📄 main.lst
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157 1 int count=0;
158 1 switch((P0&0x30)|(P1&0x03))
159 1 {
160 2 case 0x31: //play
161 2 for(count=0;(power_switch==0);count++)
162 2 { Delay_ms(1);
163 3 if(count>1200) //长按关机
164 3 {
165 4 FlashSave();
166 4 LCD_AllComsTemp[0]=6; LCD_AllComsTemp[1]=5; LCD_AllComsTemp[2]=6;
167 4 LCD_AllComsTemp[3]=6; LCD_AllComsTemp[4]=3; LCD_AllComsTemp[5]=0;
168 4 LCD_AllComsTemp[6]=6; LCD_AllComsTemp[7]=3; LCD_AllComsTemp[8]=0;
169 4 LCD_AllComsTemp[9]=0; LCD_AllComsTemp[10]=0; LCD_AllComsTemp[11]=0;
170 4 LCD_AllComsTemp[12]=0;
171 4 LCD_Refrush(); //显示OFF
172 4 Delay_ms(300);
173 4 power_on=0;
174 4 }
175 3 }
176 2 if(count<=1200 && count>20)
177 2 break;
178 2 case 0x32: //FM_set
179 2 Delay_ms(10);
C51 COMPILER V7.50 MAIN 11/10/2007 23:09:45 PAGE 4
180 2 if(F_set==0)
181 2 {
182 3 FM_ON_OFF();
183 3 }
184 2 break;
185 2 case 0x23: //F+
186 2 while(F_increase==0)
187 2 { count++;
188 3 current_freq++;
189 3 if(current_freq>MAX_FREQ)
190 3 current_freq=MIN_FREQ;
191 3 recalculate_LcdAllComs();
192 3 LCD_Refrush();
193 3 Delay_ms(300);
194 3 }
195 2 if(count>4)
196 2 {
197 3 while(((P0&0x30)|(P1&0x03))==NO_PRESS)
198 3 {
199 4 current_freq++;
200 4 if(current_freq>MAX_FREQ)
201 4 current_freq=MIN_FREQ;
202 4 Delay_ms(100);
203 4 recalculate_LcdAllComs();
204 4 LCD_Refrush();
205 4 }
206 3 }
207 2 FM_Changer();
208 2 break;
209 2 case 0x13: //F-
210 2 while(F_decrease==0) //短按
211 2 {
212 3 count++;
213 3 current_freq--;
214 3 if(current_freq<MIN_FREQ)
215 3 current_freq=MAX_FREQ;
216 3 recalculate_LcdAllComs();
217 3 LCD_Refrush();
218 3 Delay_ms(300);
219 3 }
220 2 if(count>4)
221 2 {
222 3 while(((P0&0x30)|(P1&0x03))==NO_PRESS)
223 3 {
224 4 current_freq--;
225 4 if(current_freq<MIN_FREQ)
226 4 current_freq=MAX_FREQ;
227 4 Delay_ms(100);
228 4 recalculate_LcdAllComs();
229 4 LCD_Refrush();
230 4 }
231 3 }
232 2 FM_Changer();
233 2 break;
234 2 default: break;
235 2 }
236 1 }
237 //保存数据到 Flash 代码区------------------------------------------------------------------
238 void FlashSave()
239 {
240 1 unsigned char Load_H;
241 1 unsigned char Load_L;
C51 COMPILER V7.50 MAIN 11/10/2007 23:09:45 PAGE 5
242 1 Load_L=(char)current_freq; //取数据低8位
243 1 Load_H=(char)(current_freq>>8); //取数据高8位
244 1 do
245 1 {
246 2 FMCON=0x00; //装载数据指令
247 2 FMADRH=0x07; //装载起始地址
248 2 FMADRL=0xF0; //装载结束地址
249 2 FMDATA=Load_H; //装载数据，地址自增 1
250 2 FMDATA=Load_L; //装载数据，地址自增 1
251 2 FMCON=0x68; //擦除编程操作
252 2 }while((FMCON&0x0F)!=0); //等待编程操作完成
253 1 }
254 //读取存储在 FLash 空间的变量--------------------------------------------------------------
255 void FlashLoad()
256 {
257 1 unsigned int code *readp; //定义读数据指针
258 1 readp = 0x07F0; //设置指针地址FMADRH 0x07 FMADRL 0xF0
259 1 current_freq=*readp; //将读取的值附给current_freq
260 1 }
261
262 //主函数------------------------------------------------------------------------------------
263 main()
264 {
265 1 //初始化--------------------------------------------------------------------------------
266 1 int i=0;
267 1 system_init1();
268 1 FM_INIT();
269 1 Delay_ms(10);
270 1 //开机程序------------------------------------------------------------------------------
271 1 for(i=0;(power_switch==0);i++)
272 1 {
273 2 Delay_ms(1);
274 2 if(i>=1000)
275 2 {
276 3 LCD_Init();
277 3 LCD_Refrush();
278 3 power_on=1;
279 3 Delay_ms(500);
280 3 }
281 2 }
282 1 FlashLoad();//加载上次正常关机时频率
283 1 if((current_freq>1080)||(current_freq<760))current_freq=800;
284 1 FM_Changer();
285 1 //按键扫描------------------------------------------------------------------------------
286 1 while(1)
287 1 {
288 2 key_process();
289 2 Delay_ms(50);
290 2 recalculate_LcdAllComs();
291 2 LCD_Refrush();
292 2 Delay_ms(50);
293 2 }
294 1 }
295 //中断----------------------------------------------------------------------------------------
296 /*T1_Interrupt() interrupt 5
297 {
298 TF1 = 0;
299 TR1 = 0;
300
301 TR1 = 1;
302
303 } */
C51 COMPILER V7.50 MAIN 11/10/2007 23:09:45 PAGE 6
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 1069 ----
CONSTANT SIZE = ---- ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = 52 7
IDATA SIZE = ---- ----
BIT SIZE = 1 ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 0 WARNING(S), 0 ERROR(S)
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