/******************************************************************************
* @Function USART_Config
* @Brief Config USART at STM32F4 USART3:
* BaudRate 9600
* WordLength 8-bits
* StopBits 1
* HardwareFlowControl None
* Mode Tx & Rx
*
**/
void USART_Config( void )
{
GPIO_InitTypeDef GPIO_InitStruct;
USART_InitTypeDef USART_InitStruct;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource2, GPIO_AF_USART2);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource3, GPIO_AF_USART2);
/* USART3 Tx PA2 */ /* USART3 Rx PA3 */
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStruct.GPIO_OType = GPIO_OType_PP;
GPIO_InitStruct.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStruct);
USART_InitStruct.USART_BaudRate = 9600;
USART_InitStruct.USART_WordLength = USART_WordLength_8b;
USART_InitStruct.USART_StopBits = USART_StopBits_1;
USART_InitStruct.USART_Parity = USART_Parity_No;
USART_InitStruct.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStruct.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART2, &USART_InitStruct);
USART_Cmd(USART2, ENABLE);
// initial at line one column 1
USART_SendStr(USART2, (u8*) "\r");
} // END USART_Config
/*
函数功能： 列出文件夹中的所有项目
参数 ： CurDir 当前文件夹
返回值 ： void
*/
void LsDir(FS_Object* CurDir)
{
DIR_tag *DirTag;
LongDir_Ent *LongDirEnt;
u32 CurClus;
u16 CurEntAddr;
u8 CurSec,LngNmCnt,DirEntCnt;
u16 Name_Buffer[53]; //最多容纳4个目录项 共52个Unicode字符
u8 *Name;
Name_Buffer[52]=0;
CurClus=CurDir->FstClus;
LngNmCnt=4;
DirEntCnt=4;
do
{
/***** Read and Scan FS_Object Data Aera by Sector ******/
for(CurSec=0;CurSec<FS.Sec_PerClus;CurSec++)
{
ReadSec(CurClus,CurSec,FS_Buffer);
/***** Scan Every DirEntry , 32 Bytes per DirEntry! *****/
for(CurEntAddr=0;CurEntAddr<BYTES_PERSEC;CurEntAddr+=DIRENT_SIZE)
{
DirTag=(DIR_tag*)((u32)FS_Buffer+CurEntAddr);
if(DirTag->FileName[0]==EMPTY)
{
return;
}
if(DirTag->FileName[0]!=DELETED)
{
if(DirTag->Attribute==LONG_NAME)
{
if(LngNmCnt!=0)
{
LngNmCnt--;
LongDirEnt=(LongDir_Ent*)DirTag;
Name=(u8 *)Name_Buffer+LngNmCnt*26;
CopyRam(LongDirEnt->Name1,Name,10);
CopyRam(LongDirEnt->Name2,Name+10,12);
CopyRam(LongDirEnt->Name3,Name+22,4);
}
}
else if(DirTag->Attribute&(DIR|FILE))
{
if(DirTag->Attribute&DIR)
{
USART_SendStr(USART1,"Dir:");
}
else
{
USART_SendStr(USART1,"File:");
}
if(LngNmCnt!=4)
{
LngNmCnt=4;
Convert_LngNm(Name);
USART_SendStr(USART1,Name);
USART1_printf("\r\n");
}
else
{
Name=(u8 *)Name_Buffer;
CopyRam(DirTag->FileName,Name,11);
Convert_ShortNm(Name);
USART_SendStr(USART1,Name);
USART1_printf("\r\n");
}
}
}
if(LngNmCnt!=4)
{
DirEntCnt--;
}
if(LngNmCnt!=DirEntCnt)
{
LngNmCnt=4;
DirEntCnt=4;
}
}
}
CurClus=Read_NextClusNum(CurClus);
}
while(CurClus!=0x0fffffff);
return;
}
