scheduler.lst

基于AT89C51SND1的MP3的程序设计(包括播放mp3和录音功能)

 169   1      }
 170          
 171          /*F**************************************************************************
 172          * NAME:     sch_timer_int
 173          *----------------------------------------------------------------------------
 174          * PARAMS:
 175          *
 176          * return:
 177          *----------------------------------------------------------------------------
 178          * PURPOSE:
C51 COMPILER V7.06   SCHEDULER                                                             05/05/2005 12:12:00 PAGE 4   

 179          *   Timer 0 interrupt function
 180          *----------------------------------------------------------------------------
 181          * EXAMPLE:
 182          *----------------------------------------------------------------------------
 183          * NOTE:
 184          *   IRQ_T0 defined in extsnd1.h
 185          *----------------------------------------------------------------------------
 186          * REQUIREMENTS:
 187          ******************************************************************************/
 188          Interrupt (sch_timer_int(void), IRQ_T0) 
 189          {
 190   1      //  T0_stop();                    /* stop timer */
 191   1        TL0 = TIM_LOW;                /* reload timer */ 
 192   1        TH0 = TIM_HIGH;
 193   1      //  T0_start();                   /* restart timer */
 194   1      
 195   1      #if (SCH_TYPE != SCH_FREE)
                sch_tick_flag = TRUE;
              #endif
 198   1        /* increment task tick counters */
 199   1        gl_cpt_tick++;                /* general timer */
 200   1        gl_kbd_tick++;                /* keyboard timer */
 201   1        gl_mem_tick++;                /* memory timer */
 202   1        gl_led_tick++;                /* LED timer */
 203   1        gl_act_tick++;                                /* Inactivity TIMER */
 204   1      
 205   1      
 206   1      }
 207          
 208          
 209          #elif (SCH_TIMER == SCH_TIMER1)
              /*F**************************************************************************
              * NAME:     sch_time_init
              *----------------------------------------------------------------------------
              * PARAMS:
              *
              * return:
              *----------------------------------------------------------------------------
              * PURPOSE:
              *   Scheduler time base (timer 1) initialization
              *----------------------------------------------------------------------------
              * EXAMPLE:
              *----------------------------------------------------------------------------
              * NOTE:
              *   mode 16-bit Timer, Time counter
              *   T1_PRIO to be defined in config.h
              *   TIM_LOW & TIM_HIGH defined in scheduler.h
              *----------------------------------------------------------------------------
              * REQUIREMENTS:
              *****************************************************************************/
              void sch_time_init (void)
              {
                T1_init(T1_NOT_GATED, T1_TIMER, T1_MODE_1);
                TL1 = TIM_LOW;
                TH1 = TIM_HIGH;
                t1_set_prio(T1_PRIO);         /* set-up priority */
                T1_enable_int();              /* enable interrupt */
                T1_start();                   /* start time base */
              }
              
              /*F**************************************************************************
              * NAME:     sch_timer_int
C51 COMPILER V7.06   SCHEDULER                                                             05/05/2005 12:12:00 PAGE 5   

              *----------------------------------------------------------------------------
              * PARAMS:
              *
              * return:
              *----------------------------------------------------------------------------
              * PURPOSE:
              *   Timer 1 interrupt function
              *----------------------------------------------------------------------------
              * EXAMPLE:
              *----------------------------------------------------------------------------
              * NOTE:
              *   IRQ_T1 defined in extsnd1.h
              *----------------------------------------------------------------------------
              * REQUIREMENTS:
              *****************************************************************************/
              Interrupt (sch_timer_int(void), IRQ_T1) 
              {
              //  T1_stop();                    /* stop timer */
                TL1 = TIM_LOW;                /* reload timer */ 
                TH1 = TIM_HIGH;
              //  T1_start();                   /* restart timer */
              
              #if (SCH_TYPE != SCH_FREE)
                sch_tick_flag = TRUE;
              #endif
              
                gl_cpt_tick++;
              }
              
              
              #elif (SCH_TIMER == SCH_TIMER2)
              /*F**************************************************************************
              * NAME:     sch_time_init
              *----------------------------------------------------------------------------
              * PARAMS:
              *
              * return:
              *----------------------------------------------------------------------------
              * PURPOSE:
              *   Scheduler time base (timer 2) initialization
              *----------------------------------------------------------------------------
              * EXAMPLE:
              *----------------------------------------------------------------------------
              * NOTE:
              *   mode 16-bit auto-reload
              *   T2_PRIO to be defined in config.h
              *   TIM_LOW & TIM_HIGH defined in scheduler.h
              *----------------------------------------------------------------------------
              * REQUIREMENTS:
              *****************************************************************************/
              void sch_time_init (void)
              {
                T2_init(T2_AUTO_RELOAD, T2_TIMER, T2_NOT_GATED);
                RCAP2L = TIM_LOW;
                RCAP2H = TIM_HIGH;
                t2_set_prio(T2_PRIO);         /* set-up priority */
                T2_enable_int();              /* enable interrupt */
                T2_start();                   /* start time base */
              }
              
              /*F**************************************************************************
              * NAME:     sch_timer_int
C51 COMPILER V7.06   SCHEDULER                                                             05/05/2005 12:12:00 PAGE 6   

              *----------------------------------------------------------------------------
              * PARAMS:
              *
              * return:
              *----------------------------------------------------------------------------
              * PURPOSE:
              *   Timer 2 interrupt function
              *----------------------------------------------------------------------------
              * EXAMPLE:
              *----------------------------------------------------------------------------
              * NOTE:
              *   IRQ_T2 defined in extsnd1.h
              *----------------------------------------------------------------------------
              * REQUIREMENTS:
              ******************************************************************************/
              Interrupt (sch_timer_int(void), IRQ_T2) 
              {
                TF2 = 0;                      /* ack interrupt */
              
              #if (SCH_TYPE != SCH_FREE)
                sch_tick_flag = TRUE;
              #endif
                gl_cpt_tick++;
              }
              #endif
 328          
 329          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    104    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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