69 lines
2.9 KiB
C
69 lines
2.9 KiB
C
/**********************************************************************
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Copyright (C) 2018 MisfitTech LLC, All rights reserved.
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MisfitTech uses a dual license model that allows the software to be used under
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a standard GPL open source license, or a commercial license. The standard GPL
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license requires that all software statically linked with MisfitTec Code is
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also distributed under the same GPL V2 license terms. Details of both license
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options follow:
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- Open source licensing -
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MisfitTech is a free download and may be used, modified, evaluated and
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distributed without charge provided the user adheres to version two of the GNU
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General Public License (GPL) and does not remove the copyright notice or this
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text. The GPL V2 text is available on the gnu.org web site
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- Commercial licensing -
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Businesses and individuals that for commercial or other reasons cannot comply
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with the terms of the GPL V2 license must obtain a low cost commercial license
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before incorporating MisfitTech code into proprietary software for distribution in
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any form. Commercial licenses can be purchased from www.misfittech.net
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and do not require any source files to be changed.
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This code is distributed in the hope that it will be useful. You cannot
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use MisfitTech's code unless you agree that you use the software 'as is'.
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MisfitTech's code is provided WITHOUT ANY WARRANTY; without even the implied
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warranties of NON-INFRINGEMENT, MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. MisfitTech LLC disclaims all conditions and terms, be they
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implied, expressed, or statutory.
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Written by Trampas Stern for MisfitTech.
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Misfit Tech invests time and resources providing this open source code,
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please support MisfitTech and open-source hardware by purchasing
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products from MisfitTech, www.misifittech.net!
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*********************************************************************/
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#ifndef __FLASH__H__
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#define __FLASH__H__
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#include <Arduino.h>
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#include "syslog.h"
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#define FLASH_PAGE_SIZE_NZS (64) //bytes
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#define FLASH_ROW_SIZE (FLASH_PAGE_SIZE_NZS*4) //defined in the datasheet as 4x page size
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#define FLASH_ERASE_VALUE (0xFF) //value of flash after an erase
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#define FLASH_ALLOCATE(name, size) \
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__attribute__((__aligned__(FLASH_ROW_SIZE))) \
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const uint8_t name[(size+(FLASH_ROW_SIZE-1))/FLASH_ROW_SIZE*FLASH_ROW_SIZE] = { };
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bool flashInit(void); //this checks that our assumptions are true
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bool flashErase(const volatile void *flash_ptr, uint32_t size);
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void flashWrite(const volatile void *flash_ptr,const void *data,uint32_t size);
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void flashWritePage(const volatile void *flash_ptr, const void *data, uint32_t size);
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//you can read by dereferencing pointer but we will add a read
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static inline int32_t flashRead(const volatile void *flash_ptr, void *data, uint32_t size)
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{
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memcpy(data, (const void *)flash_ptr, size);
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}
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#endif //__FLASH__H__
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