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dataflash_flash.h
executable file
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dataflash_flash.h
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#ifndef _DATAFLASH_FLASH_H_
#define _DATAFLASH_FLASH_H_
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <assert.h>
#include <stdlib.h>
#define STORAGE_SIZE 16384
#define FLASH_SIZE (128*1024*1024)
#define PAGESIZE 512 //页的大小 512
#define NUMPAGES (STORAGE_SIZE/PAGESIZE) // 页的数量
struct msg_data
{
uint16_t df_BufferIdx; //写入缓冲区的索引号
uint16_t df_Read_BufferIdx; //读取缓冲区的索引号
uint16_t df_PageAdr; //写入页的编号
uint16_t df_Read_PageAdr; //读取页的编号
uint16_t df_FileNumber; //日志文件的编号,新建日志是写入页头
uint16_t df_FilePage; //日志文件的页号,x号日志第一页为1,以此类推
uint16_t df_PageSize; //页的大小 512
uint16_t df_NumPages; //页的数量
volatile int msg_write_started;
};
struct msg_data* Init();
void BufferToPage (uint16_t PageAdr, uint8_t wait);
void PageToBuffer(uint16_t PageAdr);
void BlockWrite(uint16_t IntPageAdr,
const void *pHeader, uint8_t hdr_size,
const void *pBuffer, uint16_t size);
void BlockRead(uint16_t IntPageAdr, void *pBuffer, uint16_t size);
void WaitReady();
#endif