adc.c

来自「infineon的HT166的AD转换程序」· C语言 代码 · 共 451 行 · 第 1/2 页

//****************************************************************************
// @Module        Analog / Digital Converter (ADC)
// @Filename      ADC.C
// @Project       HVAC.dav
//----------------------------------------------------------------------------
// @Controller    Infineon XC866-2FR
//
// @Compiler      Keil
//
// @Codegenerator 1.7
//
// @Description:  This file contains functions that use the ADC module.
//
//----------------------------------------------------------------------------
// @Date          2008-4-15 19:56:02
//
//****************************************************************************

// USER CODE BEGIN (ADC_General,1)

// USER CODE END



//****************************************************************************
// @Project Includes
//****************************************************************************

#include "MAIN.H"

// USER CODE BEGIN (ADC_General,2)

// USER CODE END


//****************************************************************************
// @Macros
//****************************************************************************

// USER CODE BEGIN (ADC_General,3)

// USER CODE END


//****************************************************************************
// @Defines
//****************************************************************************

// USER CODE BEGIN (ADC_General,4)

// USER CODE END


//****************************************************************************
// @Typedefs
//****************************************************************************

// USER CODE BEGIN (ADC_General,5)

// USER CODE END


//****************************************************************************
// @Imported Global Variables
//****************************************************************************

// USER CODE BEGIN (ADC_General,6)

// USER CODE END


//****************************************************************************
// @Global Variables
//****************************************************************************

// USER CODE BEGIN (ADC_General,7)

// USER CODE END


//****************************************************************************
// @External Prototypes
//****************************************************************************

// USER CODE BEGIN (ADC_General,8)

// USER CODE END


//****************************************************************************
// @Prototypes Of Local Functions
//****************************************************************************

// USER CODE BEGIN (ADC_General,9)

// USER CODE END


//****************************************************************************
// @Function      void ADC_vInit(void) 
//
//----------------------------------------------------------------------------
// @Description   This is the initialization function of the ADC function 
//                library. It is assumed that the SFRs used by this library 
//                are in their reset state. 
//                
//                Following SFR fields will be initialized:
//                GLOBCTR  - Global Control
//                PRAR     - Priority and Arbitration Register
//                ETRCR    - External Trigger Control Register
//                CHCTRx   - Channel Control Register x
//                RCRx     - Result Control Register x
//
//----------------------------------------------------------------------------
// @Returnvalue   None
//
//----------------------------------------------------------------------------
// @Parameters    None
//
//----------------------------------------------------------------------------
// @Date          2008-4-15
//
//****************************************************************************

// USER CODE BEGIN (ADC_Init,1)

// USER CODE END

void ADC_vInit(void)
{
  // USER CODE BEGIN (ADC_Init,2)

  // USER CODE END

  ///  -----------------------------------------------------------------------
  ///  Configuration of Global Control:
  ///  -----------------------------------------------------------------------
  ///  - the ADC module clock is enabled
  ///  - the ADC module clock = 26.67 MHz
  ///   
  ///  - the result is 10 bits wide
  ///  --- Conversion Timing -----------------
  ///  - conversion time (CTC)    = 01.50 us

  ///  - Configure global control functions 

  SFR_PAGE(_ad0, noSST);         // switch to page 0

  ADC_GLOBCTR   =  0x10;         // load global control register

  ///  -----------------------------------------------------------------------
  ///  Configuration of Priority and Arbitration:
  ///  -----------------------------------------------------------------------
  ///  - the priority of request source 0 is high
  ///  - the wait-for-start mode is selected for source 0
  ///  - the priority of request source 1 is low
  ///  - the wait-for-start mode is selected for source 1
  ///  - the arbitration started by pending conversion request is selected
  ///  - Arbitration Slot 0 is enabled
  ///  - Arbitration Slot 1 is disabled

  ADC_PRAR      =  0x51;         // load Priority and Arbitration register

  SFR_PAGE(_ad1, noSST);         // switch to page 1

  ///  -----------------------------------------------------------------------
  ///  Configuration of Channel Control Registers:
  ///  -----------------------------------------------------------------------
  ///  Configuration of Channel 0
  ///  - the result register0 is selected
  ///  - the limit check 0 is selected

  ADC_CHCTR0    =  0x00;         // load channel control register

  ///  Configuration of Channel 1
  ///  - the result register0 is selected
  ///  - the limit check 0 is selected

  ADC_CHCTR1    =  0x00;         // load channel control register

  ///  Configuration of Channel 2
  ///  - the result register0 is selected
  ///  - the limit check 0 is selected

  ADC_CHCTR2    =  0x00;         // load channel control register

  ///  Configuration of Channel 3
  ///  - the result register0 is selected
  ///  - the limit check 0 is selected

  ADC_CHCTR3    =  0x00;         // load channel control register

  ///  Configuration of Channel 4
  ///  - the result register0 is selected
  ///  - the limit check 0 is selected

  ADC_CHCTR4    =  0x00;         // load channel control register

  ///  Configuration of Channel 5
  ///  - the result register0 is selected
  ///  - the limit check 0 is selected

  ADC_CHCTR5    =  0x00;         // load channel control register

  SFR_PAGE(_ad0, noSST);         // switch to page 0

  ///  -----------------------------------------------------------------------
  ///  Configuration of Sample Time Control:
  ///  -----------------------------------------------------------------------

  ADC_INPCR0    =  0x00;         // load input class register

  SFR_PAGE(_ad4, noSST);         // switch to page 4

  ///  -----------------------------------------------------------------------
  ///  Configuration of Result Control Registers:
  ///  -----------------------------------------------------------------------
  ///  Configuration of Result Control Register 0
  ///  - the data reduction filter is disabled
  ///  - the event interrupt is disabled
  ///  - the wait-for-read mode is enabled
  ///  - the VF reset by read access to RESRxH/RESRAxH

  ADC_RCR0      =  0xC0;         // load result control register 0

  ///  Configuration of Result Control Register 1