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