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/** ###################################################################
** THIS BEAN MODULE IS GENERATED BY THE TOOL. DO NOT MODIFY IT.
** Filename : AD1.C
** Project : accelerometer
** Processor : MC9S08JM60CLHE
** Beantype : ADC
** Version : Bean 01.452, Driver 01.21, CPU db: 3.00.033
** Compiler : CodeWarrior HCS08 C Compiler
** Date/Time : 2009-10-12, 18:01
** Abstract :
** This device "ADC" implements an A/D converter,
** its control methods and interrupt/event handling procedure.
** Settings :
** AD control register : ADCSC1 [$0010]
** AD control register : ADCCFG [$0016]
** AD control register : ADCRH [$0012]
** AD control register : ADCRL [$0013]
** AD control register : ADCCVH [$0014]
** AD control register : ADCCVL [$0015]
** AD control register : ADCSC2 [$0011]
** AD control register : APCTL1 [$0017]
** AD control register : APCTL2 [$0018]
** AD result register : ADCres [$0012]
** AD result register : ADCres [$0012]
** Interrupt name : Vadc
** Priority :
** User handling procedure : AD1_OnEnd
** Number of conversions : 1
** AD resolution : 12-bit
**
** Input pins
**
** Port name : PTD
** Bit number (in port) : 3
** Bit mask of the port : $0008
** Port data register : PTDD [$0006]
** Port control register : PTDDD [$0007]
**
** Port name : PTD
** Bit number (in port) : 4
** Bit mask of the port : $0010
** Port data register : PTDD [$0006]
** Port control register : PTDDD [$0007]
**
** Initialization:
** Conversion : Enabled
** Event : Enabled
** High speed mode
** Prescaler : divide-by-2
** Contents :
** Measure - byte AD1_Measure(bool WaitForResult);
** GetValue16 - byte AD1_GetValue16(word *Values);
**
** (c) Copyright UNIS, spol. s r.o. 1997-2008
** UNIS, spol. s r.o.
** Jundrovska 33
** 624 00 Brno
** Czech Republic
** http : www.processorexpert.com
** mail : info@processorexpert.com
** ###################################################################*/
/* MODULE AD1. */
#include "Events.h"
#include "AD1.h"
static void ClrSumV(void);
/*
** ===================================================================
** Method : ClrSumV (bean ADC)
**
** Description :
** The method clears the internal buffers used to store sum of a
** number of last conversions.
** This method is internal. It is used by Processor Expert only.
** ===================================================================
*/
#define STOP 0 /* STOP state */
#define MEASURE 1 /* MESURE state */
#define CONTINUOUS 2 /* CONTINUOS state */
#define SINGLE 3 /* SINGLE state */
static const byte Channels[2] = {0x4A,0x4B}; /* Contents for the device control register */
static bool OutFlg; /* Measurement finish flag */
static byte SumChan; /* Number of measured channels */
static byte ModeFlg; /* Current state of device */
word AD1_OutV[2]; /* Sum of measured values */
/*
** ===================================================================
** Method : AD1_Interrupt (bean ADC)
**
** Description :
** The method services the interrupt of the selected peripheral(s)
** and eventually invokes event(s) of the bean.
** This method is internal. It is used by Processor Expert only.
** ===================================================================
*/
ISR(AD1_Interrupt)
{
((TWREG*)(&AD1_OutV[SumChan]))->b.high = ADCRH; /* Save measured value */
((TWREG*)(&AD1_OutV[SumChan]))->b.low = ADCRL; /* Save measured value */
SumChan++; /* Number of measurement */
if (SumChan == 2) { /* Is number of measurement equal to the number of conversions? */
SumChan = 0; /* If yes then set the number of measurement to 0 */
OutFlg = TRUE; /* Measured values are available */
AD1_OnEnd(); /* Invoke user event */
ModeFlg = STOP; /* Set the device to the stop mode */
return; /* Return from interrupt */
}
ADCSC1 = Channels[SumChan]; /* Start measurement of next channel */
}
/*
** ===================================================================
** Method : ClrSumV (bean ADC)
**
** Description :
** The method clears the internal buffers used to store sum of a
** number of last conversions.
** This method is internal. It is used by Processor Expert only.
** ===================================================================
*/
static void ClrSumV(void)
{
AD1_OutV[0] = 0; /* Set variable for storing measured values to 0 */
AD1_OutV[1] = 0; /* Set variable for storing measured values to 0 */
}
/*
** ===================================================================
** Method : AD1_HWEnDi (bean ADC)
**
** Description :
** Enables or disables the peripheral(s) associated with the bean.
** The method is called automatically as a part of the Enable and
** Disable methods and several internal methods.
** This method is internal. It is used by Processor Expert only.
** ===================================================================
*/
void AD1_HWEnDi(void)
{
if (ModeFlg) { /* Start or stop measurement? */
OutFlg = FALSE; /* Output values aren't available */
SumChan = 0; /* Set the number of measured channels to 0 */
ClrSumV(); /* Clear measured values */
ADCSC1 = Channels[SumChan]; /* If yes then start the conversion */
}
}
/*
** ===================================================================
** Method : AD1_Measure (bean ADC)
**
** Description :
** This method performs one measurement on all channels that
** are set in the bean inspector. (Note: If the <number of
** conversions> is more than one the conversion of A/D channels
** is performed specified number of times.)
** Parameters :
** NAME - DESCRIPTION
** WaitForResult - Wait for a result of a
** conversion. If <interrupt service> is
** disabled, A/D peripheral doesn't support
** measuring all channels at once or Autoscan
** mode property isn't enabled and at the same
** time the <number of channel> is greater
** than 1, then the WaitForResult parameter is
** ignored and the method waits for each
** result every time. If the <interrupt
** service> is disabled and a <number of
** conversions> is greater than 1, the
** parameter is ignored and the method also
** waits for each result every time.
** Returns :
** --- - Error code, possible codes:
** ERR_OK - OK
** ERR_SPEED - This device does not work in
** the active speed mode
** ERR_DISABLED - Device is disabled
** ERR_BUSY - A conversion is already running
** ===================================================================
*/
#pragma MESSAGE DISABLE C5703 /* WARNING C5703: Parameter declared but not referenced */
byte AD1_Measure(bool WaitForResult)
{
if (ModeFlg != STOP) { /* Is the device in different mode than "stop"? */
return ERR_BUSY; /* If yes then error */
}
ModeFlg = MEASURE; /* Set state of device to the measure mode */
AD1_HWEnDi(); /* Enable the device */
if (WaitForResult) { /* Is WaitForResult TRUE? */
while (ModeFlg == MEASURE) {} /* If yes then wait for end of measurement */
}
return ERR_OK; /* OK */
}
/*
** ===================================================================
** Method : AD1_GetValue16 (bean ADC)
**
** Description :
** This method returns the last measured values of all channels
** justified to the left. Compared with <GetValue> method this
** method returns more accurate result if the <number of
** conversions> is greater than 1 and <AD resolution> is less
** than 16 bits. In addition, the user code dependency on <AD
** resolution> is eliminated.
** Parameters :
** NAME - DESCRIPTION
** * Values - Pointer to the array that contains
** the measured data.
** Returns :
** --- - Error code, possible codes:
** ERR_OK - OK
** ERR_SPEED - This device does not work in
** the active speed mode
** ERR_NOTAVAIL - Requested value not
** available
** ERR_OVERRUN - External trigger overrun flag
** was detected after the last value(s) was
** obtained (for example by GetValue). This
** error may not be supported on some CPUs
** (see generated code).
** ===================================================================
*/
byte AD1_GetValue16(word *Values)
{
if (!OutFlg) { /* Is output flag set? */
return ERR_NOTAVAIL; /* If no then error */
}
Values[0] = (word)((AD1_OutV[0]) << 4); /* Save measured values to the output buffer */
Values[1] = (word)((AD1_OutV[1]) << 4); /* Save measured values to the output buffer */
return ERR_OK; /* OK */
}
/*
** ===================================================================
** Method : AD1_Init (bean ADC)
**
** Description :
** Initializes the associated peripheral(s) and the bean's
** internal variables. The method is called automatically as a
** part of the application initialization code.
** This method is internal. It is used by Processor Expert only.
** ===================================================================
*/
void AD1_Init(void)
{
OutFlg = FALSE; /* No measured value */
ModeFlg = STOP; /* Device isn't running */
/* ADCSC2: ADACT=0,ADTRG=0,ACFE=0,ACFGT=0,??=0,??=0,??=0,??=0 */
setReg8(ADCSC2, 0x00); /* Disable HW trigger and autocompare */
/* ADCCFG: ADLPC=0,ADIV1=0,ADIV0=1,ADLSMP=0,MODE1=0,MODE0=1,ADICLK1=1,ADICLK0=1 */
setReg8(ADCCFG, 0x27); /* Set prescaler bits */
/* ADCSC1: COCO=0,AIEN=0,ADCO=0,ADCH4=1,ADCH3=1,ADCH2=1,ADCH1=1,ADCH0=1 */
setReg8(ADCSC1, 0x1F); /* Disable the module */
}
/* END AD1. */
/*
** ###################################################################
**
** This file was created by UNIS Processor Expert 3.03 [04.07]
** for the Freescale HCS08 series of microcontrollers.
**
** ###################################################################
*/
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