115 lines
5.2 KiB
C
115 lines
5.2 KiB
C
/************************************************************************************
|
|
* arch/mips/src/pic32mx/pic32mx-cvr.h
|
|
*
|
|
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
************************************************************************************/
|
|
|
|
#ifndef __ARCH_MIPS_SRC_PIC32MX_PIC32MX_CVR_H
|
|
#define __ARCH_MIPS_SRC_PIC32MX_PIC32MX_CVR_H
|
|
|
|
/************************************************************************************
|
|
* Included Files
|
|
************************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include "chip.h"
|
|
#include "pic32mx-memorymap.h"
|
|
|
|
/************************************************************************************
|
|
* Pre-processor Definitions
|
|
************************************************************************************/
|
|
/* Register Offsets *****************************************************************/
|
|
|
|
#define PIC32MX_CVR_CON_OFFSET 0x0000 /* Comparator voltage reference control register */
|
|
#define PIC32MX_CVR_CONCLR_OFFSET 0x0004 /* Comparator voltage reference control clear register */
|
|
#define PIC32MX_CVR_CONSET_OFFSET 0x0008 /* Comparator voltage reference control set register */
|
|
#define PIC32MX_CVR_CONINV_OFFSET 0x000c /* Comparator voltage reference control invert register */
|
|
|
|
/* Register Addresses ***************************************************************/
|
|
|
|
#define PIC32MX_CVR_CON (PIC32MX_CVR_K1BASE+PIC32MX_CVR_CON_OFFSET)
|
|
#define PIC32MX_CVR_CONCLR (PIC32MX_CVR_K1BASE+PIC32MX_CVR_CONCLR_OFFSET)
|
|
#define PIC32MX_CVR_CONSET (PIC32MX_CVR_K1BASE+PIC32MX_CVR_CONSET_OFFSET)
|
|
#define PIC32MX_CVR_CONINV (PIC32MX_CVR_K1BASE+PIC32MX_CVR_CONINV_OFFSET)
|
|
|
|
/* Register Bit-Field Definitions ***************************************************/
|
|
|
|
/* Comparator voltage reference control register */
|
|
|
|
#define CVR_CON_CVR_SHIFT (0) /* Bits 0-3: CVREF value selection */
|
|
#define CVR_CON_CVR_MASK (15 << CVR_CON_CVR_SHIFT)
|
|
# define CVR_CON_CVR(n) ((n) << CVR_CON_CVR_SHIFT)
|
|
#define CVR_CON_CVRSS (1 << 4) /* Bit 4: CVREF source selection */
|
|
#define CVR_CON_CVRR (1 << 5) /* Bit 5: CVREF range selection */
|
|
#define CVR_CON_CVROE (1 << 6) /* Bit 6: CVREFOUT enable */
|
|
#ifdef CHIP_VRFSEL
|
|
# define CVR_CON_BGSEL_SHIFT (8) /* Bits 8-9: Band gap reference source */
|
|
# define CVR_CON_BGSEL_MASK (3 << CVR_CON_CVR_SHIFT)
|
|
# define CVR_CON_BGSEL_1p2V (0 << CVR_CON_CVR_SHIFT) /* IVREF = 1.2V (nominal) */
|
|
# define CVR_CON_BGSEL_0p6V (1 << CVR_CON_CVR_SHIFT) /* IVREF = 0.6V (nominal) */
|
|
# define CVR_CON_BGSEL_0p2V (2 << CVR_CON_CVR_SHIFT) /* IVREF = 0.2V (nominal) */
|
|
# define CVR_CON_BGSEL_VREF (3 << CVR_CON_CVR_SHIFT) /* VREF = VREF+ */
|
|
# define CVR_CON_VREFSEL (1 << 10) /* Bit 10: Voltage reference select */
|
|
#endif
|
|
#define CVR_CON_ON (1 << 15) /* Bit 15: Comparator voltage reference on */
|
|
|
|
/************************************************************************************
|
|
* Public Types
|
|
************************************************************************************/
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
/************************************************************************************
|
|
* Inline Functions
|
|
************************************************************************************/
|
|
|
|
/************************************************************************************
|
|
* Public Function Prototypes
|
|
************************************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* __ARCH_MIPS_SRC_PIC32MX_PIC32MX_CVR_H */
|