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  • 大小: 62KB
    文件類型: .rar
    金幣: 2
    下載: 0 次
    發(fā)布日期: 2021-05-29
  • 語言: 其他
  • 標(biāo)簽: MSP430F149??read??SD??card??

資源簡(jiǎn)介

低功耗系列單片機(jī)MSP430F149 讀取/寫入SD卡

資源截圖

代碼片段和文件信息


#include?“mmc.h“
#include?
#include?“FAT16.h“
uint8?BUFFER[512];

uint16?BPB_BytesPerSec;
uint8?BPB_SecPerClus;
uint16?BPB_RsvdSecCnt;
uint8?BPB_NumFATs;
uint16?BPB_RootEntCnt;
uint16?BPB_TotSec16;
uint16?BPB_FATSz16;
uint32?BPB_HiddSec;

//********************************************************************************************
//讀一個(gè)扇區(qū)
void?ReadBlock(uint32?LBA)
//********************************************************************************************
{
mmcReadSector(LBABUFFER);
????????return;
}

//********************************************************************************************
//寫一個(gè)扇區(qū)
void?WriteBlock(uint32?LBA)
//********************************************************************************************
{
mmcWriteSector(LBABUFFER);
????????return;
}

//********************************************************************************************
void?CopyBytes(void*?S?void*?D?uint16?size)
//********************************************************************************************
{
uint8?*s?=?S?*d?=?D;
uint16?i;
for(i?=?0;?i? *d++?=?*s++;
}

//********************************************************************************************
uint8?IsEqual(void*?A?void*?B?uint8?Size)
//********************************************************************************************
{
uint8?i?*a?=?A?*b?=?B;
for(i?=?0;?i? if(a[i]?!=?b[i])
return?0;
return?1;
}

//********************************************************************************************
void?EmptyBytes(void*?D?uint16?size)
//********************************************************************************************
{
uint16?i;
uint8*?data?=?(uint8*)D;
for(i?=?0;?i? {
*data++?=?0;
}
}
//********************************************************************************************
//寫B(tài)PB數(shù)據(jù)結(jié)構(gòu)
void?FATInit(void)
//********************************************************************************************
{
FAT_BPB*?BPB?=?(FAT_BPB*)BUFFER;
//參數(shù)
BPB->BPB_BytesPerSec?=?0x0200;//每個(gè)扇區(qū)512字節(jié)
BPB->BPB_SecPerClus??=?0x08;??//每個(gè)簇8個(gè)扇區(qū)
BPB->BPB_RsvdSecCnt??=?0x0004;//一個(gè)保留扇區(qū)
BPB->BPB_NumFATs?????=?0x02;?//2個(gè)FAT表
BPB->BPB_RootEntCnt??=?0x0200;//512目錄項(xiàng)個(gè)數(shù)
BPB->BPB_TotSec16????=?0x0000;//總扇區(qū)數(shù)
BPB->BPB_FATSz16?????=?0xF2;//一個(gè)FAT表所占的扇區(qū)數(shù)
BPB->BPB_HiddSec?????=?0x00000000;??//本FAT表前隱藏的扇區(qū)數(shù)

WriteBlock(0);//寫引導(dǎo)區(qū)
}
//********************************************************************************************
//讀取BPB數(shù)據(jù)結(jié)構(gòu)
void?ReadBPB(void)
//********************************************************************************************
{
FAT_BPB*?BPB?=?(FAT_BPB*)BUFFER;
ReadBlock(0);

//獲取參數(shù)
BPB_BytesPerSec?=?BPB->BPB_BytesPerSec;
BPB_SecPerClus?=?BPB->BPB_SecPerClus;
BPB_RsvdSecCnt?=?BPB->BPB_RsvdSecCnt;
BPB_NumFATs?=?BPB->BPB_NumFATs;
BPB_RootEntCnt?=?BPB->BPB_RootEntCnt;
BPB_TotSec16?=?BPB->BPB_TotSec16;

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????21039??2007-12-20?16:03??usage_example_IAR\mmc.c

?????文件???????4757??2007-12-20?17:04??usage_example_IAR\MMC.h

?????文件???????3239??2007-12-26?14:06??usage_example_IAR\settings\MSP430_SD.wsdt

?????文件?????????63??2007-12-26?14:06??usage_example_IAR\settings\MSP430_SD.dbgdt

?????文件????????179??2007-12-26?14:06??usage_example_IAR\settings\MSP430_SD.dni

?????文件??????45685??2007-12-26?13:52??usage_example_IAR\Debug\Exe\MSP430_SD.d43

?????文件??????58668??2007-12-26?13:52??usage_example_IAR\Debug\Obj\FAT16.r43

?????文件??????34195??2007-12-26?13:52??usage_example_IAR\Debug\Obj\main.r43

?????文件??????45578??2007-12-26?13:52??usage_example_IAR\Debug\Obj\mmc.r43

?????文件????????291??2007-12-26?13:54??usage_example_IAR\Debug\Obj\MSP430_SD.pbd

?????文件????????163??2007-12-26?13:42??usage_example_IAR\MSP430_SD.eww

?????文件??????43776??2007-12-26?13:42??usage_example_IAR\MSP430_SD.ewp

?????文件??????11880??2007-12-26?13:42??usage_example_IAR\MSP430_SD.ewd

?????文件???????3729??2007-12-26?14:06??usage_example_IAR\MSP430_SD.dep

?????文件???????5042??2007-12-26?13:49??usage_example_IAR\FAT16.h

?????文件??????13537??2007-12-26?13:52??usage_example_IAR\FAT16.c

?????文件???????5691??2007-12-26?13:52??usage_example_IAR\main.c

?????文件???????1185??2007-12-26?14:06??usage_example_IAR\readme.txt

?????目錄??????????0??2007-12-26?13:42??usage_example_IAR\Debug\Exe

?????目錄??????????0??2007-12-26?13:42??usage_example_IAR\Debug\Obj

?????目錄??????????0??2007-12-26?13:42??usage_example_IAR\Debug\List

?????目錄??????????0??2007-12-26?13:42??usage_example_IAR\settings

?????目錄??????????0??2007-12-26?13:42??usage_example_IAR\Debug

????..AD...?????????0??2007-12-26?13:41??usage_example_IAR

-----------?---------??----------?-----??----

???????????????298697????????????????????24


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