lx1972l.c

sypress psoc express 驱动led发光的应用程序.

//*****************************************************************************
//*****************************************************************************
//  FILENAME:  `@LIB_NAME`_LX1972L.c
//  Version: 1.0, Updated on 2006/01/28 at 20:15:02
//  Application: PSoC Express 2.0
//
//  DESCRIPTION:  This Driver calls the low level driver and returns the
//                voltage that corresponds to a given channel.
//
//-----------------------------------------------------------------------------
//      Copyright (c) Cypress MicroSystems 2006. All Rights Reserved.
//*****************************************************************************
//*****************************************************************************

#include "m8c.h"
#include "`@LIB_NAME`_LX1972L.h"
#include "cmx.h"

// Channel type header file
#include "CMX_MVOLTS_IN_CHAN.h"

// The format of the function should always be the same,
// no matter what low level driver is used.

//-----------------------------------------------------------------------------
//  FUNCTION NAME: LX1972L_Instantiate(const `@LIB_NAME`_LX1972L_ParameterBlock * thisBLK)
//
//  DESCRIPTION:  
//    This function doesn't do anything at this time, but is placed here
//    for forward compatibility.
//
//-----------------------------------------------------------------------------
//
//  ARGUMENTS: 
//    thisBLK  => Pointer to ParameterBlock for this instance.
//
//  RETURNS: None
//
//  SIDE EFFECTS: 
//
//  THEORY of OPERATION or PROCEDURE: 
//
//-----------------------------------------------------------------------------
void `@LIB_NAME`_LX1972L_Instantiate(const `@LIB_NAME`_LX1972L_ParameterBlock * thisBLK)
{
    // Blank function
}

//-----------------------------------------------------------------------------
//  FUNCTION NAME: LX1972L_GetValue(const `@LIB_NAME`_LX1972L_ParameterBlock * thisBLK)
//
//  DESCRIPTION:  
//    This function returns a value between 0 and 100 based on the LX1972L
//    postion.  
//
//-----------------------------------------------------------------------------
//
//  ARGUMENTS: 
//    thisBLK  => Pointer to ParameterBlock for this instance.
//
//  RETURNS: 
//      A Byte value between 0 and 100.
//
//  SIDE EFFECTS: 
//
//  THEORY of OPERATION or PROCEDURE: 
//
//-----------------------------------------------------------------------------
BYTE `@LIB_NAME`_LX1972L_GetValue(const `@LIB_NAME`_LX1972L_ParameterBlock * thisBLK)
{
   long lCounts;

   lCounts = (long)(iGetAinChanCounts(thisBLK->InPort))*101;  
   lCounts = lCounts / (1 << (CMX_ADC_CHAN_RESOLUTION));
   if (lCounts > 100)  lCounts = 100;                 // Make sure Max is 100

   return((BYTE)lCounts);                              // Convert to BYTE and return
}