scheduler.lst

这是atmel公司的89C51SND1C的mp3源程序

C51 COMPILER V6.20c  SCHEDULER                                                             07/10/2002 15:17:30 PAGE 4   

 179          *----------------------------------------------------------------------------
 180          * REQUIREMENTS:
 181          *****************************************************************************/
 182          void sch_time_init (void)
 183          {
 184   1        T0_init(T0_NOT_GATED, T0_TIMER, T0_MODE_1);
 185   1        TL0 = TIM_LOW;
 186   1        TH0 = TIM_HIGH;
 187   1        t0_set_prio(T0_PRIO);         /* set-up priority */
 188   1        T0_enable_int();              /* enable interrupt */
 189   1        T0_start();                   /* start time base */
 190   1      }
 191          
 192          /*F**************************************************************************
 193          * NAME:     sch_timer_int
 194          *----------------------------------------------------------------------------
 195          * PARAMS:
 196          *
 197          * return:
 198          *----------------------------------------------------------------------------
 199          * PURPOSE:
 200          *   Timer 0 interrupt function
 201          *----------------------------------------------------------------------------
 202          * EXAMPLE:
 203          *----------------------------------------------------------------------------
 204          * NOTE:
 205          *   IRQ_T0 defined in extsnd1.h
 206          *----------------------------------------------------------------------------
 207          * REQUIREMENTS:
 208          ******************************************************************************/
 209          Interrupt (sch_timer_int(void), IRQ_T0) 
 210          {
 211   1      //  T0_stop();                    /* stop timer */
 212   1        TL0 = TIM_LOW;                /* reload timer */ 
 213   1        TH0 = TIM_HIGH;
 214   1      //  T0_start();                   /* restart timer */
 215   1      
 216   1      #if (SCH_TYPE != SCH_FREE)
                sch_tick_flag = TRUE;
              #endif
 219   1        /* increment task tick counters */
 220   1        gl_cpt_tick++;                /* general timer */
 221   1        gl_kbd_tick++;                /* keyboard timer */
 222   1        gl_mem_tick++;                /* memory timer */
 223   1        gl_wa_tick++;                 /* workaround timer */
 224   1      
 225   1      }
 226          
 227          
 228          #elif (SCH_TIMER == SCH_TIMER1)
              /*F**************************************************************************
              * NAME:     sch_time_init
              *----------------------------------------------------------------------------
              * PARAMS:
              *
              * return:
              *----------------------------------------------------------------------------
              * PURPOSE:
              *   Scheduler time base (timer 1) initialization
              *----------------------------------------------------------------------------
              * EXAMPLE:
              *----------------------------------------------------------------------------
C51 COMPILER V6.20c  SCHEDULER                                                             07/10/2002 15:17:30 PAGE 5   

              * 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
              *----------------------------------------------------------------------------
              * 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:
              *----------------------------------------------------------------------------
C51 COMPILER V6.20c  SCHEDULER                                                             07/10/2002 15:17:30 PAGE 6   

              * 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
              *----------------------------------------------------------------------------
              * 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
 347          
 348          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     76    ----
   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)