mode_task.lst

该源码是基于atmel公司的89C51SND1C的mp3解决方案

 158   2          {
 159   3            break;
 160   3          }
 161   2      
 162   2          case MODE_SONG:
 163   2          {
 164   3            song_task();                          /* song mode */
 165   3            break;
 166   3          }
 167   2      
 168   2          case MODE_VOICE:
 169   2          {
 170   3            voice_task();                         /* voice mode */
 171   3            break;
 172   3          }
 173   2      
 174   2          case MODE_TOOL:
 175   2          {
 176   3            tool_task();                          /* tool mode */
 177   3            break;
C51 COMPILER V7.00  MODE_TASK                                                              04/28/2004 09:31:56 PAGE 4   

 178   3          }
 179   2      
 180   2          case MODE_IDLE: 
 181   2          {
 182   3            mode_state = MODE_SONG;
 183   3            break;
 184   3          }
 185   2        }
 186   1      }
 187          
 188          
 189          /*F**************************************************************************
 190          * NAME: mode_set_init
 191          *----------------------------------------------------------------------------
 192          * PARAMS:
 193          *
 194          * return:
 195          *----------------------------------------------------------------------------
 196          * PURPOSE: 
 197          *   Sets mode task in init state
 198          *----------------------------------------------------------------------------
 199          * EXAMPLE:
 200          *----------------------------------------------------------------------------
 201          * NOTE:
 202          *   Called from song, voice, mass, tool, usb tasks before stopping
 203          *----------------------------------------------------------------------------
 204          * REQUIREMENTS:
 205          *****************************************************************************/
 206          void mode_set_init (void)
 207          {
 208   1        mode_state++;
 209   1      }
 210          
 211          
 212          /*F**************************************************************************
 213          * NAME: mode_set_download
 214          *----------------------------------------------------------------------------
 215          * PARAMS:
 216          *
 217          * return:
 218          *----------------------------------------------------------------------------
 219          * PURPOSE: 
 220          *   Set mode task in download state
 221          *----------------------------------------------------------------------------
 222          * EXAMPLE:
 223          *----------------------------------------------------------------------------
 224          * NOTE:
 225          *   Called from usb task to stop the current task and switch to download task
 226          *----------------------------------------------------------------------------
 227          * REQUIREMENTS:
 228          *****************************************************************************/
 229          void mode_set_download (void)
 230          {
 231   1      #if MEM_CARD_TYPE != CARD_NONE
                mem_card_select(FALSE);                   /* try selecting card */
              #endif
 234   1        switch (mode_state)
 235   1        {
 236   2          case MODE_SONG:
 237   2          {
 238   3            while (mode_state == MODE_SONG)
 239   3            {
C51 COMPILER V7.00  MODE_TASK                                                              04/28/2004 09:31:56 PAGE 5   

 240   4              kbd_set_stop();
 241   4              song_task();                        /* exit song task */
 242   4            }
 243   3            mode_state = MODE_DOWNLOAD;
 244   3            break;
 245   3          }
 246   2        
 247   2          case MODE_VOICE:
 248   2          {
 249   3            while (mode_state == MODE_VOICE)
 250   3            {
 251   4              kbd_set_stop();
 252   4              voice_task();                       /* exit voice task */
 253   4            }
 254   3            mode_state = MODE_DOWNLOAD;
 255   3            break;
 256   3          }
 257   2        
 258   2          case MODE_TOOL:
 259   2          {
 260   3            while (mode_state == MODE_TOOL)
 261   3            {
 262   4              kbd_set_stop();
 263   4              tool_task();                        /* exit tool task */
 264   4            }
 265   3            mode_state = MODE_DOWNLOAD;
 266   3            break;
 267   3          }
 268   2      
 269   2          default:
 270   2          {
 271   3            mode_state = MODE_DOWNLOAD;
 272   3            break;
 273   3          }
 274   2        }
 275   1      }
 276          
 277          
 278          /*F**************************************************************************
 279          * NAME: mode_exit_download
 280          *----------------------------------------------------------------------------
 281          * PARAMS:
 282          *
 283          * return:
 284          *----------------------------------------------------------------------------
 285          * PURPOSE: 
 286          *   Switch mode task from download to song state
 287          *----------------------------------------------------------------------------
 288          * EXAMPLE:
 289          *----------------------------------------------------------------------------
 290          * NOTE:
 291          *   Called from usb task when disconnecting
 292          *----------------------------------------------------------------------------
 293          * REQUIREMENTS:
 294          *****************************************************************************/
 295          void mode_exit_download (void)
 296          {
 297   1        if (mode_state == MODE_DOWNLOAD)
 298   1        {
 299   2          mode_state++;
 300   2          #if MEM_CARD_TYPE != CARD_NONE
                    mem_card_select(FALSE);                   /* force reselect memory */
C51 COMPILER V7.00  MODE_TASK                                                              04/28/2004 09:31:56 PAGE 6   

                  #endif
 303   2        }
 304   1      }
 305          
 306          
 307          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    192    ----
   CONSTANT SIZE    =     34    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)