/*******************************************************************************
* DISCLAIMER
* This software is supplied by Renesas Electronics Corporation and is only
* intended for use with Renesas products. No other uses are authorized. This
* software is owned by Renesas Electronics Corporation and is protected under
* all applicable laws, including copyright laws.
* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
* THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
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* ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
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* you agree to the additional terms and conditions found by accessing the
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* (c) 2014 Renesas Electronics Corporation All rights reserved.
*******************************************************************************/


/******************************************************************************
* File Name     : r_lps_Analog.c
* Version       : 1.0
* Device(s)     : R7F701007 RH850/F1L
* Tool-Chain    : IAR Embedded Workbench 1.30.1
* Description   : This file is a sample of the low power sampler (LPS Analog input mode).
* Operation     : -
*******************************************************************************
*******************************************************************************
* History       : DD.MM.YYYY Version Description
*               : 20.03.2014 1.00    First Release
******************************************************************************/

/******************************************************************************
Includes <System Includes>
******************************************************************************/
#include    "r_typedefs.h"
#include    "iodefine.h"
#ifdef __ghs__
#include    "device.h"
#endif

#ifdef __IAR_SYSTEMS_ICC__
	#include <intrinsics.h>
#endif




/******************************************************************************
Imported global variables and functions (from other files)
******************************************************************************/


/******************************************************************************
Macro definitions
******************************************************************************/


/******************************************************************************
Exported global variables and functions (to be accessed by other files)
******************************************************************************/
        void    R_LPS_Init( void );
        void    R_LPS_Start( void );
        void    R_LPS_Stop( void );


/******************************************************************************
Private global variables and functions
******************************************************************************/


/******************************************************************************
* Function Name : void R_LPS_Init( void )
* Description   : This function initializes the LPS.
* Argument      : none
* Return Value  : none
******************************************************************************/
void R_LPS_Init( void )
{
    /* APO (P0_1) CN2A-30pin */
    PFCAE0      &= 0xFFFDU;
    PFCE0       |= 0x0002U;
    PFC0        |= 0x0002U;
    PM0         &= 0xFFFDU;
    PMC0        |= 0x0002U;


    /* Set the lead number of times and the trigger signal of the port in the digital input mode.
    SCTLR    - LPS Control Registers
    b31:b 7            - Reserved set to 0
    b 6:b 4    NUMDP   - Set the number of times the port is read in
                         digital input mode.                           - Unused. Set to 000'b
    b 3:b 2    TJIS    - Sequence Start Trigger Select                 - INTTAUJ0I0
    b 1        ADEN    - Analog input mode is stopped / enabled        - stopped
    b 0        DPEN    - Digital input mode is stopped / enabled       - Unused. Set to 0'b */
    SCTLR              = 0x00000000UL;

    /* Set intervaltimer function of TAUJ0. */


    /* Set stabilization time (More than 1 us)
    CNTVAL   - Count Value Register
    b15:b 8    CNT     - set the stabilization time of the external
                         circuit (analog signal source).               - 1 / fRH x 16 x 01H
    b 7:b 0    CNT     - set the stabilization time of the external
                         circuit (digital signal source).              - Unused. Set to 00H */
    CNTVAL              = 0x0100U;
}


/******************************************************************************
* Function Name : void R_LPS_Start( void )
* Description   : This function start the LPS.
* Argument      : none
* Return Value  : none
******************************************************************************/
void R_LPS_Start( void )
{
    /* Set SCTLR.DPEN bit */
    SCTLR               |= 0x00000002UL;        /* Analog input mode enable  */
}


/******************************************************************************
* Function Name : void R_LPS_Stop( void )
* Description   : This function stop the LPS.
* Argument      : none
* Return Value  : none
******************************************************************************/
void R_LPS_Stop( void )
{
    /* Clear SCTLR.DPEN bit */
    SCTLR               &= 0xFFFFFFFDUL;        /* Analog input mode disable */
}