drivers/timer/timer.c File Reference

Go to the source code of this file.

Functions
void	F_TimerInitial (void)
void	F_TimerTimerSet (INT8U TimerNumber, INT32U Frequence)
void	F_TimerTimer1IsrHook (void)
Variables
INT8U	TimeTick
INT32U	SystemTime
volatile INT32U	Timer2Counter = 0

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Function Documentation

void F_TimerInitial

(

void

)

Definition at line 17 of file timer.c.

                         {
    rTCON   =0x00000000;             // disable all timers...timer0~4 all off
    rTCFG0 &=0xffffff00;            // set prescaler0 to 0x04 for timer 0,1
    rTCFG0 |=4;                     // set prescaler0 to 0x04 for timer 0,1
    rTCFG0 &=0xffff00ff;            // set prescaler1 to 0x01 for timer 2,3,4
    rTCFG0 |=1<<8;                  // set prescaler1 to 0x01 for timer 2,3,4
    rTCFG1  =0;                    // set all divider to {2}
    TimeTick=0;
    SystemTime=0;
}

void F_TimerTimer1IsrHook

(

void

)

Definition at line 96 of file timer.c.

                                {
    TimeTick=1;
    SystemTime++;
    if(Timer2Counter!=0) Timer2Counter--;
    if(XmodemCtrl.Timer!=0) XmodemCtrl.Timer--;
    if(ShellCtrl.Timer!=0) ShellCtrl.Timer--;
    //if(ShellTaskTimer!=0) ShellTaskTimer--;
    //if(TestTaskCtrl.Timer!=0) TestTaskCtrl.Timer--;
    //if(Test1TaskCtrl.Timer!=0) Test1TaskCtrl.Timer--;
    if(EthernetTaskCtrl.Timer!=0) EthernetTaskCtrl.Timer--;
    //if(Dm9000Ctrl.Timer!=0) Dm9000Ctrl.Timer--;
    //if(SdCtrl.Timer!=0) SdCtrl.Timer--;
    if(OsSchedulerCtrl.TaskSwitchTimer!=0) OsSchedulerCtrl.TaskSwitchTimer--;
    #if(OS_RUN_ENABLE==1)
        if(OSRunning==TRUE){
            OS_ENTER_CRITICAL();
            #if(OS_TIME_EVENT_ENABLE==1)
               OsTimeTickHandler();
            #endif
            if(OsSchedulerCtrl.TaskSwitchTimer==0){
                #if(OS_INT_LEVEL_CSW_ENABLE==1)
                    OsSchedulerFindNextIsr();
                #endif
            }
            OS_EXIT_CRITICAL();
        }
    #endif
}

void F_TimerTimerSet	(	INT8U	TimerNumber,
		INT32U	Frequence
	)

Definition at line 27 of file timer.c.

                                                        {
    if(TimerNumber==0){
        rTCFG0  =119;
        rTCFG1 &=0xfffffff0;                //
        rTCFG1 |=0x00000003;                 // set MUX input to 1/16...for PWM time0
        //rTCNTB0=F_ClockApbClockGet()/(2*2*Frequence);
        rTCNTB0=52083;                      // timer0 counter buffer
        rTCON  &=0xfffffff0;
        rTCON  |=0x00000002;                 // set manual update
        rTCON   =0x00000009;                // set timer0 auto reload,output inverter off
                                                    // clear manual update ,timer starts
        //rTCON  |=0x0000000b;              // set timer0 auto reload,output inverter off,manual update on,timer starts
        //rTCON  &=0xfffffffd;             // clear timer0 manual update bit
        HandleTimer0=(INT32U)F_IsrTimer0;   // set timer0 isr hook function
    }
    else if(TimerNumber==1){
        rTCFG1 &=0xffffff0f;                   //
        rTCFG1 |=0x00000000;                // set MUX input to 1/2...for PWM timer1
        // rTCNTB1=F_ClockApbClockGet()/(5*2*Frequence);
        // 16bit down timer 50M/(5*2*1000)=5000...
        // 5=prescaler+1,2 for timer divider,1000timetick/sec
        rTCNTB1=5000;                      //1ms
        //rTCMPB1=0; //this register is for pwm use
        rTCON  &=0xfffff0ff;              //
        rTCON  |=0x00000b00;               // set timer1 auto reload,output inverter off,manual update on,timer starts
        rTCON  &=0xfffffdff;              // clear timer1 manual update bit
        HandleTimer1=(INT32U)F_IsrTimer1;   // set timer1 isr hook function

        /*rTCFG1 &=0xffffff0f;            //
        rTCFG1 |=0x00000030;               // set MUX input to 1/16...for PWM time1
        //rTCNTB1=F_ClockApbClockGet()/(2*2*Frequence);
        rTCNTB1=52083;                  // timer1 counter buffer
        rTCON  &=0xffff0fff;            //
        rTCON  |=0x00000b00;            // set timer1 auto reload,output inverter off,manual update on,timer starts
        vrTCON  &=0xfffffdff;            // clear timer1 manual update bit
        pISR_TIMER1=(INT32U)Timer1;   // set timer1 isr hook function
        */
    }
    else if(TimerNumber==2){
        rTCFG1 &=0xfffff0ff;            //
        rTCFG1 |=0x00000300;             // set MUX input to 1/16...for PWM time2
        //rTCNTB2=F_ClockApbClockGet()/(2*2*Frequence);
        rTCNTB2=52083;                  // timer2 counter buffer
        rTCON  &=0xffff0fff;            //
        rTCON  |=0x0000b000;            // set timer2 auto reload,output inverter off,manual update on,timer starts
        rTCON  &=0xffffdfff;            // clear timer2 manual update bit
        HandleTimer2=(INT32U)F_IsrTimer2;   // set timer2 isr hook function
    }
    else if(TimerNumber==3){
        rTCFG1 &=0xffff0fff;            //
        rTCFG1 |=0x00003000;            // set MUX input to 1/16...for PWM time3
        //rTCNTB3=F_ClockApbClockGet()/(2*2*Frequence);
        rTCNTB3=52083;                  // timer3 counter buffer
        rTCON  &=0xffff0fff;            //
        rTCON  |=0x000b0000;            // set timer3 auto reload,output inverter off,manual update on,timer starts
        rTCON  &=0xfffdffff;            // clear timer3 manual update bit 
        HandleTimer3=(INT32U)F_IsrTimer3;   // set timer3 isr hook function 
    }
    else if(TimerNumber==4){
        rTCFG1 &=0xfff0ffff;            //
        rTCFG1 |=0x00030000;             // set MUX input to 1/16...for PWM time4
        //rTCNTB4=F_ClockApbClockGet()/(2*2*Frequence);
        rTCNTB4=52083;                  // timer4 counter buffer
        rTCON  &=0xff0fffff;            //
        rTCON  |=0x00700000;            // set timer4 auto reload,output inverter off,manual update on,timer starts
        rTCON  &=0xffdfffff;            // clear timer4 manual update bit
        HandleTimer4=(INT32U)F_IsrTimer4;   // set timer4 isr hook function
    }
}

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Variable Documentation

INT32U SystemTime

Definition at line 13 of file timer.c.

volatile INT32U Timer2Counter = 0

Definition at line 15 of file timer.c.

INT8U TimeTick

Definition at line 11 of file timer.c.