106 lines
4.6 KiB
C
106 lines
4.6 KiB
C
/*******************************************************************************
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* DISCLAIMER
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* This software is supplied by Renesas Electronics Corporation and is only
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* intended for use with Renesas products. No other uses are authorized. This
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* software is owned by Renesas Electronics Corporation and is protected under
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* all applicable laws, including copyright laws.
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* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
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* THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
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* LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
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* AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
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* TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
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* ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
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* FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
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* ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
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* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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* Renesas reserves the right, without notice, to make changes to this software
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* and to discontinue the availability of this software. By using this software,
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* you agree to the additional terms and conditions found by accessing the
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* following link:
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* http://www.renesas.com/disclaimer
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* Copyright 2018-2022 Renesas Electronics Corporation All rights reserved.
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*******************************************************************************/
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/*******************************************************************************
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* DESCRIPTION : swdt header
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******************************************************************************/
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/******************************************************************************
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* @file swdt.h
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* - Version : 0.02
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* @brief
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* .
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*****************************************************************************/
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/******************************************************************************
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* History : DD.MM.YYYY Version Description
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* : 12.08.2022 0.01 First Release
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* : 31.10.2022 0.02 License notation change.
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*****************************************************************************/
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#ifndef SWDT_H_
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#define SWDT_H_
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#include <stdint.h>
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#include "mem_io.h"
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#include "rst_register.h"
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#define SWDT_BASE (0xE6030000U)
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#define SWDT_WTCNT (SWDT_BASE + 0x0000U)
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#define SWDT_WTCSRA (SWDT_BASE + 0x0004U)
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#define SWDT_WTCSRB (SWDT_BASE + 0x0008U)
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#define WTCNT_UPPER_BYTE (0x5A5A0000U)
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#define WTCSRA_UPPER_BYTE (0xA5A5A500U)
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#define WTCSRB_UPPER_BYTE (0xA5A5A500U)
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#define WTCNT_RESET_VALUE (0xF488U)
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#define WTCSRA_BIT_CKS (0x0007U)
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#define WTCSRB_BIT_CKS (0x003FU)
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#define SWDT_RSTMSK (0U << 1U)
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#define WTCSRA_WOVFE (1U << 3U)
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#define WTCSRA_WRFLG (1U << 5U)
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#define WTCSRA_TME (1U << 7U)
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#define WDTRSTCR_MASK_ALL (0x0000FFFFU)
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#define WTCSRA_MASK_ALL (0x000000FFU)
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#define WTCNT_INIT_DATA (WTCNT_UPPER_BYTE + WTCNT_RESET_VALUE)
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#define WTCSRA_INIT_DATA (WTCSRA_UPPER_BYTE + 0x0FU)
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#define WTCSRB_INIT_DATA (WTCSRB_UPPER_BYTE + 0x21U)
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/* CKS0 setting */
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#define OSCCLK_32 (32U) /* 011:OSCCLK/32 */
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#define WTCSRA_CKS0_OSCCLK (0x00000003U)
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/* WDT Timeout Setting */
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/* OSCCLK */
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#define OSCCLK_133330HZ (133330U) /* MD13=0 MD14=0*/
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#define OSCCLK_131570HZ (131570U) /* MD13=H MD14=L*/
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/* clock */
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/* (micro sec / (Hz / RPhi) */
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#define CLK_133330HZ ((uint32_t)((1U * 1000U * 1000U) \
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/ (OSCCLK_133330HZ / OSCCLK_32)))
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#define CLK_131570HZ ((uint32_t)((1U * 1000U * 1000U) \
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/ (OSCCLK_131570HZ / OSCCLK_32)))
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#define SWDT_COUNT_SEC (10U) /* set param(1--10sec) */
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/* SWDT over flow sec need count*/
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#define SWDT_COUNT_133330HZ ((uint32_t)((SWDT_COUNT_SEC * 1000U * 1000U) \
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/ CLK_133330HZ))
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#define SWDT_COUNT_131570HZ ((uint32_t)((SWDT_COUNT_SEC * 1000U * 1000U) \
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/ CLK_131570HZ))
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#define SWDTCNT_133330HZ (0x10000U - SWDT_COUNT_133330HZ)
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#define SWDTCNT_131570HZ (0x10000U - SWDT_COUNT_131570HZ)
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#define MD14_MD13_TYPE_0 (0x00000000U) /* MD14=0 MD13=0 */
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#define MD14_MD13_TYPE_1 (0x00002000U) /* MD14=0 MD13=1 */
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#define MD14_MD13_TYPE_3 (0x00006000U) /* MD14=1 MD13=1 */
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#define CHECK_MD13_MD14 (0x00006000U)
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/* Prototype */
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void swdt_init(void);
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void swdt_exec(void);
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void swdt_release(void);
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#endif /* SWDT_H_ */
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