| /** ################################################################### | |
| ** THIS BEAN MODULE IS GENERATED BY THE TOOL. DO NOT MODIFY IT. | |
| ** Filename : TickTimer.C | |
| ** Project : RTOSDemo | |
| ** Processor : MC9S12C32CFU | |
| ** Beantype : TimerInt | |
| ** Version : Bean 02.063, Driver 01.05, CPU db: 2.87.276 | |
| ** Compiler : Metrowerks HC12 C Compiler | |
| ** Date/Time : 18/06/2005, 17:53 | |
| ** Abstract : | |
| ** This bean "TimerInt" implements a periodic interrupt. | |
| ** When the bean and its events are enabled, the "OnInterrupt" | |
| ** event is called periodically with the period that you specify. | |
| ** TimerInt supports also changing the period in runtime. | |
| ** The source of periodic interrupt can be timer compare or reload | |
| ** register or timer-overflow interrupt (of free running counter). | |
| ** Settings : | |
| ** Timer name : TIM (16-bit) | |
| ** Compare name : TC0 | |
| ** Counter shared : No | |
| ** | |
| ** High-speed CPU mode | |
| ** Prescaler : divide-by-4 | |
| ** Clock : 5999000 Hz | |
| ** Initial period/frequency | |
| ** Xtal ticks : 16000 | |
| ** microseconds : 1000 | |
| ** milliseconds : 1 | |
| ** seconds (real) : 0.0010000 | |
| ** Hz : 1000 | |
| ** kHz : 1 | |
| ** | |
| ** Runtime setting : period/frequency interval (continual setting) | |
| ** ticks : 16000 to 160000 ticks | |
| ** microseconds : 1000 to 10000 microseconds | |
| ** milliseconds : 1 to 10 milliseconds | |
| ** seconds (real) : 0.0010000 to 0.0100000 seconds | |
| ** Hz : 100 to 1000 Hz | |
| ** | |
| ** Initialization: | |
| ** Timer : Disabled | |
| ** Events : Enabled | |
| ** | |
| ** Timer registers | |
| ** Counter : TCNT [68] | |
| ** Mode : TIOS [64] | |
| ** Run : TSCR1 [70] | |
| ** Prescaler : TSCR2 [77] | |
| ** | |
| ** Compare registers | |
| ** Compare : TC0 [80] | |
| ** | |
| ** Flip-flop registers | |
| ** Mode : TCTL2 [73] | |
| ** Contents : | |
| ** Enable - byte TickTimer_Enable(void); | |
| ** SetFreqHz - byte TickTimer_SetFreqHz(word Freq); | |
| ** | |
| ** (c) Copyright UNIS, spol. s r.o. 1997-2002 | |
| ** UNIS, spol. s r.o. | |
| ** Jundrovska 33 | |
| ** 624 00 Brno | |
| ** Czech Republic | |
| ** http : www.processorexpert.com | |
| ** mail : info@processorexpert.com | |
| ** ###################################################################*/ | |
| /* MODULE TickTimer. */ | |
| #include "Events.h" | |
| #include "TickTimer.h" | |
| /* Definition of DATA and CODE segments for this bean. User can specify where | |
| these segments will be located on "Build options" tab of the selected CPU bean. */ | |
| #pragma DATA_SEG TickTimer_DATA /* Data section for this module. */ | |
| #pragma CODE_SEG TickTimer_CODE /* Code section for this module. */ | |
| static bool EnUser; /* Enable/Disable device by user */ | |
| static word CmpHighVal; /* Compare register value for high speed CPU mode */ | |
| /* | |
| ** =================================================================== | |
| ** Method : SetCV (bean TimerInt) | |
| ** | |
| ** Description : | |
| ** This method is internal. It is used by Processor Expert | |
| ** only. | |
| ** =================================================================== | |
| */ | |
| static void SetCV(word Val) | |
| { | |
| if (Val == 0) /* If the given value is zero */ | |
| Val = 65535; /* then change it to the maximal one */ | |
| TC0 = Val; /* Store given value to the compare register */ | |
| TC7 = Val; /* Store given value to the modulo register */ | |
| } | |
| /* | |
| ** =================================================================== | |
| ** Method : SetPV (bean TimerInt) | |
| ** | |
| ** Description : | |
| ** This method is internal. It is used by Processor Expert | |
| ** only. | |
| ** =================================================================== | |
| */ | |
| static void SetPV(byte Val) | |
| { | |
| TSCR2_PR = Val; /* Store given value to the prescaler */ | |
| } | |
| /* | |
| ** =================================================================== | |
| ** Method : HWEnDi (bean TimerInt) | |
| ** | |
| ** Description : | |
| ** This method is internal. It is used by Processor Expert | |
| ** only. | |
| ** =================================================================== | |
| */ | |
| static void HWEnDi(void) | |
| { | |
| if (EnUser) { /* Enable device? */ | |
| TFLG1 = 1; /* Reset interrupt request flag */ | |
| TIE_C0I = 1; /* Enable interrupt */ | |
| } | |
| else { /* Disable device? */ | |
| TIE_C0I = 0; /* Disable interrupt */ | |
| } | |
| } | |
| /* | |
| ** =================================================================== | |
| ** Method : TickTimer_Enable (bean TimerInt) | |
| ** | |
| ** Description : | |
| ** Enable the bean - it starts the timer. Events may be | |
| ** generated ("DisableEvent"/"EnableEvent"). | |
| ** Parameters : None | |
| ** Returns : | |
| ** --- - Error code, possible codes: | |
| ** ERR_OK - OK | |
| ** ERR_SPEED - This device does not work in | |
| ** the active speed mode | |
| ** =================================================================== | |
| */ | |
| byte TickTimer_Enable(void) | |
| { | |
| if (!EnUser) { /* Is the device disabled by user? */ | |
| EnUser = TRUE; /* If yes then set the flag "device enabled" */ | |
| HWEnDi(); /* Enable the device */ | |
| } | |
| return ERR_OK; /* OK */ | |
| } | |
| /* | |
| ** =================================================================== | |
| ** Method : TickTimer_SetFreqHz (bean TimerInt) | |
| ** | |
| ** Description : | |
| ** This method sets the new frequency of the generated | |
| ** events. The frequency is expressed in Hz as a 16-bit | |
| ** unsigned integer number. | |
| ** This method is available only if runtime setting type | |
| ** 'from interval' is selected in the Timing dialog box in | |
| ** Runtime setting area. | |
| ** Parameters : | |
| ** NAME - DESCRIPTION | |
| ** Freq - Frequency to set [in Hz] | |
| ** (100 to 1000 Hz) | |
| ** Returns : | |
| ** --- - Error code, possible codes: | |
| ** ERR_OK - OK | |
| ** ERR_SPEED - This device does not work in | |
| ** the active speed mode | |
| ** ERR_MATH - Overflow during evaluation | |
| ** ERR_RANGE - Parameter out of range | |
| ** =================================================================== | |
| */ | |
| byte TickTimer_SetFreqHz(word Freq) | |
| { | |
| dlong rtval; /* Result of two 32-bit numbers division */ | |
| word rtword; /* Result of 64-bit number division */ | |
| if ((Freq > 1000) || (Freq < 100)) /* Is the given value out of range? */ | |
| return ERR_RANGE; /* If yes then error */ | |
| rtval[1] = 1535744000 / (dword)Freq; /* Divide high speed CPU mode coefficient by the given value */ | |
| rtval[0] = 0; /* Convert result to the type dlong */ | |
| if (PE_Timer_LngHi1(rtval[0],rtval[1],&rtword)) /* Is the result greater or equal than 65536 ? */ | |
| rtword = 65535; /* If yes then use maximal possible value */ | |
| CmpHighVal = rtword; /* Store result (compare register value for high speed CPU mode) to the variable CmpHighVal */ | |
| SetCV(CmpHighVal); /* Store appropriate value to the compare register according to the selected high speed CPU mode */ | |
| return ERR_OK; /* OK */ | |
| } | |
| /* | |
| ** =================================================================== | |
| ** Method : TickTimer_Init (bean TimerInt) | |
| ** | |
| ** Description : | |
| ** This method is internal. It is used by Processor Expert | |
| ** only. | |
| ** =================================================================== | |
| */ | |
| void TickTimer_Init(void) | |
| { | |
| CmpHighVal = 5999; /* Compare register value for high speed CPU mode */ | |
| EnUser = FALSE; /* Disable device */ | |
| SetCV(CmpHighVal); /* Store appropriate value to the compare register according to the selected high speed CPU mode */ | |
| SetPV(2); /* Set prescaler register according to the selected high speed CPU mode */ | |
| HWEnDi(); /* Enable/disable device according to status flags */ | |
| } | |
| /* | |
| ** =================================================================== | |
| ** Method : TickTimer_Interrupt (bean TimerInt) | |
| ** | |
| ** Description : | |
| ** This method is internal. It is used by Processor Expert | |
| ** only. | |
| ** =================================================================== | |
| */ | |
| #pragma CODE_SEG __NEAR_SEG NON_BANKED /* Interrupt section for this module. Placement will be in NON_BANKED area. */ | |
| __interrupt void TickTimer_Interrupt(void) | |
| { | |
| TFLG1 = 1; /* Reset interrupt request flag */ | |
| vTaskTickInterrupt(); /* Invoke user event */ | |
| } | |
| #pragma CODE_SEG TickTimer_CODE /* Code section for this module. */ | |
| /* END TickTimer. */ | |
| /* | |
| ** ################################################################### | |
| ** | |
| ** This file was created by UNIS Processor Expert 03.33 for | |
| ** the Motorola HCS12 series of microcontrollers. | |
| ** | |
| ** ################################################################### | |
| */ |