112 lines
4.6 KiB
C
112 lines
4.6 KiB
C
/**
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* Copyright (c) 2022, Nations Technologies Inc.
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*
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* All rights reserved.
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*
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* This software is the exclusive property of Nations Technologies Inc. (Hereinafter
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* referred to as NATIONS). This software, and the product of NATIONS described herein
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* (Hereinafter referred to as the Product) are owned by NATIONS under the laws and treaties
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* of the People's Republic of China and other applicable jurisdictions worldwide.
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*
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* NATIONS does not grant any license under its patents, copyrights, trademarks, or other
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* intellectual property rights. Names and brands of third party may be mentioned or referred
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* thereto (if any) for identification purposes only.
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*
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* NATIONS reserves the right to make changes, corrections, enhancements, modifications, and
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* improvements to this software at any time without notice. Please contact NATIONS and obtain
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* the latest version of this software before placing orders.
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* Although NATIONS has attempted to provide accurate and reliable information, NATIONS assumes
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* no responsibility for the accuracy and reliability of this software.
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*
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* It is the responsibility of the user of this software to properly design, program, and test
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* the functionality and safety of any application made of this information and any resulting product.
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* In no event shall NATIONS be liable for any direct, indirect, incidental, special,exemplary, or
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* consequential damages arising in any way out of the use of this software or the Product.
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*
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* NATIONS Products are neither intended nor warranted for usage in systems or equipment, any
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* malfunction or failure of which may cause loss of human life, bodily injury or severe property
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* damage. Such applications are deemed, "Insecure Usage".
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*
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* All Insecure Usage shall be made at user's risk. User shall indemnify NATIONS and hold NATIONS
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* harmless from and against all claims, costs, damages, and other liabilities, arising from or related
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* to any customer's Insecure Usage.
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* Any express or implied warranty with regard to this software or the Product, including,but not
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* limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement
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* are disclaimed to the fullest extent permitted by law.
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* Unless otherwise explicitly permitted by NATIONS, anyone may not duplicate, modify, transcribe
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* or otherwise distribute this software for any purposes, in whole or in part.
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*
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* NATIONS products and technologies shall not be used for or incorporated into any products or systems
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* whose manufacture, use, or sale is prohibited under any applicable domestic or foreign laws or regulations.
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* User shall comply with any applicable export control laws and regulations promulgated and administered by
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* the governments of any countries asserting jurisdiction over the parties or transactions.
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**/
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/**
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*\*\file n32g003_iwdg.h
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*\*\author Nations
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*\*\version v1.0.0
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*\*\copyright Copyright (c) 2022, Nations Technologies Inc. All rights reserved.
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**/
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#ifndef __n32g003_IWDG_H
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#define __n32g003_IWDG_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "n32g003.h"
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typedef enum
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{
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IWDG_PVU_FLAG = IWDG_STS_PVU,
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IWDG_CRVU_FLAG = IWDG_STS_CRVU
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}IWDG_STATUS_FLAG;
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/** KEY register bit mask **/
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#define KEY_RELOAD_COUNTER ((uint16_t)0xAAAA)
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#define KEY_ENABLE_COUNTER ((uint16_t)0xCCCC)
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#define IWDG_FREEZE ((uint16_t)0xDDDD)
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#define IWDG_UNFREEZE ((uint16_t)0xDDDD)
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/** PREDIV and RELV register write permission **/
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typedef enum
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{
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IWDG_WRITE_CONFIG_ENABLE = 0x5555,
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IWDG_WRITE_CONFIG_DISABLE = 0x0000
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}IWDOG_WRITE_CONFIG;
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typedef enum
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{
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IWDG_CONFIG_PRESCALER_DIV4 = (~IWDG_PREDIV_PD),
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IWDG_CONFIG_PRESCALER_DIV8 = (IWDG_PREDIV_PD0),
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IWDG_CONFIG_PRESCALER_DIV16 = (IWDG_PREDIV_PD1),
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IWDG_CONFIG_PRESCALER_DIV32 = (IWDG_PREDIV_PD1 | IWDG_PREDIV_PD0),
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IWDG_CONFIG_PRESCALER_DIV64 = (IWDG_PREDIV_PD2),
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IWDG_CONFIG_PRESCALER_DIV128 = (IWDG_PREDIV_PD2 | IWDG_PREDIV_PD0),
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IWDG_CONFIG_PRESCALER_DIV256 = (IWDG_PREDIV_PD2 | IWDG_PREDIV_PD1 | IWDG_PREDIV_PD0)
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}IWDG_CONFIG_PRESCALER;
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#define IWDG_FREEZE_FLAG ((uint16_t)IWDG_FREEZE_FREEZE)
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void IWDG_Write_Protection_Disable(void);
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void IWDG_Write_Protection_Enable(void);
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void IWDG_Prescaler_Division_Set(IWDG_CONFIG_PRESCALER IWDG_prescaler);
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void IWDG_Counter_Reload(uint16_t reload_value);
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void IWDG_Key_Reload(void);
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void IWDG_Enable(void);
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ErrorStatus IWDG_Freeze_Enable(void);
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ErrorStatus IWDG_Restore_From_Freeze(void);
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FlagStatus IWDG_Status_Get(IWDG_STATUS_FLAG IWDG_flag);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __n32g003_IWDG_H */
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