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Rev 347 Rev 353
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 *
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 *
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 *   Functions for controlling blinds
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 *   Functions for controlling blinds
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 *
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 *
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 *********************************************************************
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 *********************************************************************
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 * FileName:        $HeadURL: https://svn.auml.se/svn/HomeAutomation/trunk/EmbeddedSoftware/PIC/canTemp/Source/blinds.c $
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 * FileName:        $HeadURL: https://svn.auml.se/svn/HomeAutomation/trunk/EmbeddedSoftware/PIC/canTemp/Source/blinds.c $
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 * Last changed:    $LastChangedDate: 2007-03-01 14:38:06 +0100 (Thu, 01 Mar 2007) $
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 * Last changed:    $LastChangedDate: 2007-03-03 19:07:14 +0100 (Sat, 03 Mar 2007) $
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 * By:              $LastChangedBy: johboh $
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 * By:              $LastChangedBy: johboh $
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 * Revision:        $Revision: 347 $
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 * Revision:        $Revision: 353 $
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 ********************************************************************/
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 ********************************************************************/
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#include <blinds.h>
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#include <blinds.h>
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#ifdef USE_BLINDS
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#ifdef USE_BLINDS
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static WORD timerVal = 50536;
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static WORD timerVal = 50536;
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static WORD turnOffIO = 0;
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static WORD turnOffIO = 0;
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static signed char currentPrecent = 0;
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static BYTE currentPrecent = 0;
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static BYTE dutyOffCounter = 0;
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static BYTE dutyOffCounter = 0;
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/*
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/*
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*   Function: blindsInit
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*   Function: blindsInit
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*
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*
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void blindsInit()
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void blindsInit()
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{
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{
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    // setup timer one on 0.5ms.
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    // setup timer one on 0.5ms.
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    // 16 bit write, system clock, prescale 2 bit, oscillator off,
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    // 16 bit write, system clock, prescale 2 bit, oscillator off,
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    T1CON = 0b11000001;
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    T1CON = 0b11000001;
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    TMR1H=((timerVal&0xFF00)>>8);
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    TMR1H=(BYTE)((timerVal&0xFF00)>>8);
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    TMR1L=(timerVal&0xFF);
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    TMR1L=(timerVal&0xFF);
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    PIR1bits.TMR1IF = 0;
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    PIR1bits.TMR1IF = 0;
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    PIE1bits.TMR1IE = 1;
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    PIE1bits.TMR1IE = 1;
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    IPR1bits.TMR1IP = 0; // Low prior
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    IPR1bits.TMR1IP = 1; // high prior
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}
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}
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/*
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/*
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*   Function: blindsGetAngle
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*   Function: blindsGetAngle
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*
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*
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*   Affects: none.
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*   Affects: none.
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*   Depends: none.
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*   Depends: none.
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*/
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*/
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void blindsTurn(BYTE precent)
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void blindsTurn(BYTE precent)
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{
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{
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    // 65536-TIME/0,0000001
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    // 65536-TIME/0,0000001
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    // -90 0.5 ms = 60536 (5000)
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    // -90 0.5 ms = 60536 (5000)
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    // 0   1.5 ms = 50536 (15000)
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    // 0   1.5 ms = 50536 (15000)
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    // 90  2.5 ms = 40536 (25000)
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    // 90  2.5 ms = 40536 (25000)
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    turnOffIO = IO_TIMEOUT;
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    turnOffIO = IO_TIMEOUT;
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    currentPrecent = precent;
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    currentPrecent = precent;
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    if (precent>100) { currentPrecent = 100; }
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    if (precent>100) { currentPrecent = 100; }
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    if (precent<0)   { currentPrecent =   0; }
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    if (precent<0)   { currentPrecent =   0; }
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    dutyOffCounter = 0;
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    dutyOffCounter = 0;
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    timerVal=60536-(unsigned int)((90+(-1.05*(signed int)currentPrecent+60))*111.111);
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    timerVal=60536-(unsigned int)((90+(-1.05*(unsigned int)currentPrecent+60))*111.111);
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}
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}
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/*
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/*
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*   Function: blindsISR
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*   Function: blindsISR
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*
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*
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*   Pre-conditions: none
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*   Pre-conditions: none
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*   Affects: none.
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*   Affects: none.
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*   Depends: none.
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*   Depends: none.
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*/
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*/
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void blindsISR(void)
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void blindsISR(void)
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{
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{
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    if (PIR1bits.TMR1IF == 1 && PIE1bits.TMR1IE == 1)
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    if (PIR1bits.TMR1IF == 1 && PIE1bits.TMR1IE == 1)
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    {
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    {
- 
 
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        WORD timerValBuffer = timerVal;
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        WORD timerValBuffer = timerVal;
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        dutyOffCounter++;
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        dutyOffCounter++;
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        if (BLINDS0_IO==0 && dutyOffCounter>4)
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        if (BLINDS0_IO==0 && dutyOffCounter>4)
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        {
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        {
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            BLINDS0_IO=1;
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            BLINDS0_IO=1;
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            dutyOffCounter=0;  
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            dutyOffCounter=0;  
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        }
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        }
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        else if (BLINDS0_IO==0 && dutyOffCounter<=4)
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        else if (BLINDS0_IO==0 && dutyOffCounter<=4)
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        {
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        {
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            timerValBuffer = DUTY_OFF_DELAY;
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            timerValBuffer = DUTY_OFF_DELAY;
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        }
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        }
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        else if (BLINDS0_IO==1)
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        else if (BLINDS0_IO==1)
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        {
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        {
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            BLINDS0_IO=0;
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            BLINDS0_IO=0;
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        }
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        }
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        TMR1H=((timerValBuffer&0xFF00)>>8);
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        TMR1H=(BYTE)((timerValBuffer&0xFF00)>>8);
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        TMR1L=(timerValBuffer&0xFF);
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        TMR1L=(timerValBuffer&0xFF);
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- 
 
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        if (turnOffIO--<1)
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        if (turnOffIO--<1)
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        {
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        {
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            BLINDS0P_IO=0;
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            BLINDS0P_IO=0;
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        }
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        }
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        PIR1bits.TMR1IF = 0;
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        PIR1bits.TMR1IF = 0;
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    }
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    }
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}
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}
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