2017-11-27 21:19:49 +00:00
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#ifndef __EEPROM_H
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#define __EEPROM_H
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#include <wirish.h>
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#include "flash_stm32.h"
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// HACK ALERT. This definition may not match your processor
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// To Do. Work out correct value for EEPROM_PAGE_SIZE on the STM32F103CT6 etc
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#define MCU_STM32F103RB
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#ifndef EEPROM_PAGE_SIZE
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#if defined (MCU_STM32F103RB)
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#define EEPROM_PAGE_SIZE (uint16)0x400 /* Page size = 1KByte */
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#elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE) || defined (MCU_STM32F103RD)
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#define EEPROM_PAGE_SIZE (uint16)0x800 /* Page size = 2KByte */
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#else
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#error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
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#endif
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#endif
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#ifndef EEPROM_START_ADDRESS
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#if defined (MCU_STM32F103RB)
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#define EEPROM_START_ADDRESS ((uint32)(0x8000000 + 128 * 1024 - 2 * EEPROM_PAGE_SIZE))
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#elif defined (MCU_STM32F103ZE) || defined (MCU_STM32F103RE)
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#define EEPROM_START_ADDRESS ((uint32)(0x8000000 + 512 * 1024 - 2 * EEPROM_PAGE_SIZE))
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#elif defined (MCU_STM32F103RD)
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#define EEPROM_START_ADDRESS ((uint32)(0x8000000 + 384 * 1024 - 2 * EEPROM_PAGE_SIZE))
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#else
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#error "No MCU type specified. Add something like -DMCU_STM32F103RB to your compiler arguments (probably in a Makefile)."
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#endif
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#endif
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/* Pages 0 and 1 base and end addresses */
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#define EEPROM_PAGE0_BASE ((uint32)(EEPROM_START_ADDRESS + 0x000))
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#define EEPROM_PAGE1_BASE ((uint32)(EEPROM_START_ADDRESS + EEPROM_PAGE_SIZE))
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/* Page status definitions */
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#define EEPROM_ERASED ((uint16)0xFFFF) /* PAGE is empty */
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#define EEPROM_RECEIVE_DATA ((uint16)0xEEEE) /* PAGE is marked to receive data */
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#define EEPROM_VALID_PAGE ((uint16)0x0000) /* PAGE containing valid data */
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/* Page full define */
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enum : uint16
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{
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EEPROM_OK = ((uint16)0x0000),
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EEPROM_OUT_SIZE = ((uint16)0x0081),
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EEPROM_BAD_ADDRESS = ((uint16)0x0082),
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EEPROM_BAD_FLASH = ((uint16)0x0083),
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EEPROM_NOT_INIT = ((uint16)0x0084),
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2017-12-20 11:31:20 +00:00
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EEPROM_SAME_VALUE = ((uint16)0x0085),
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2017-11-27 21:19:49 +00:00
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EEPROM_NO_VALID_PAGE = ((uint16)0x00AB)
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};
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#define EEPROM_DEFAULT_DATA 0xFFFF
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class EEPROMClass
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{
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public:
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EEPROMClass(void);
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uint16 init(void);
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uint16 init(uint32, uint32, uint32);
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uint16 format(void);
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uint16 erases(uint16 *);
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uint16 read (uint16 address);
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uint16 read (uint16 address, uint16 *data);
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uint16 write(uint16 address, uint16 data);
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2017-12-20 11:31:20 +00:00
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uint16 update(uint16 address, uint16 data);
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2017-11-27 21:19:49 +00:00
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uint16 count(uint16 *);
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uint16 maxcount(void);
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uint32 PageBase0;
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uint32 PageBase1;
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uint32 PageSize;
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uint16 Status;
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private:
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FLASH_Status EE_ErasePage(uint32);
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uint16 EE_CheckPage(uint32, uint16);
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uint16 EE_CheckErasePage(uint32, uint16);
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uint16 EE_Format(void);
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uint32 EE_FindValidPage(void);
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uint16 EE_GetVariablesCount(uint32, uint16);
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uint16 EE_PageTransfer(uint32, uint32, uint16);
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uint16 EE_VerifyPageFullWriteVariable(uint16, uint16);
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};
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extern EEPROMClass EEPROM;
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#endif /* __EEPROM_H */
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