//以扇区为单位获得文件指针位置
uint32_t SecGetSize(const char * BUF_Name)
{
uint32_t bufoffset;
bus_SPI_mutex_apply();
strcpy( (char *)TarName, BUF_Name );
CH376FileOpenPath( TarName );/* 打开多级目录下的文件或者目录(文件夹),支持多级目录路径,支持路径分隔符,路径长度不超过255个字符 */
bufoffset = CH376GetFileSize( );
bus_SPI_mutex_release();
return bufoffset;
}
uint8_t Sec_OPEN_READ_PATH (const char * BUF_Name , uint32_t Addr , uint8_t * bufread , uint8_t offset )
{
bus_SPI_mutex_apply();
strcpy( (char *)TarName, BUF_Name );
CH376FileOpenPath( TarName );/* 打开多级目录下的文件或者目录(文件夹),支持多级目录路径,支持路径分隔符,路径长度不超过255个字符 */
//bufoffset = CH376GetFileSize( );
CH376SecLocate( Addr );
s = CH376SecRead( bufread , offset ,NULL );/* 以扇区为单位从当前位置读取数据块 */
CH376FileClose( TRUE ); /* 关闭文件,对于扇区读写建议自动更新文件长度 */
bus_SPI_mutex_release();
return s;
}
//打开多级目录下的文件并写
uint8_t Sec_OPEN_WRITE_PATH (const char * BUF_Name, uint8_t * Content , uint32_t Addr ,uint8_t offset)
{
bus_SPI_mutex_apply();
strcpy( (char *)TarName, BUF_Name );
CH376FileOpenPath( TarName );/* 打开多级目录下的文件或者目录(文件夹),支持多级目录路径,支持路径分隔符,路径长度不超过255个字符 */
// bufoffset = CH376GetFileSize( );
CH376SecLocate( Addr );
s = CH376SecWrite(Content, offset, NULL ); /* 以扇区为单位向当前位置写入数据块 */
CH376FileClose( TRUE ); /* 关闭文件,对于扇区读写建议自动更新文件长度 */
memset( TarName, 0, 100 );
memset( USBbuf, 0, 100 );
bus_SPI_mutex_release();
return s;
}
//以扇区为单位填充
BOOL SecFill( const char * BUF_Name , uint32_t Addr , uint8_t size)
{ // 文件名称 写起始地址 要写的数量
bus_SPI_mutex_apply();
strcpy( (char *)TarName, BUF_Name );
CH376FileOpenPath( TarName );/* 打开多级目录下的文件或者目录(文件夹),支持多级目录路径,支持路径分隔符,路径长度不超过255个字符 */
CH376ByteLocate( Addr );
memset( buf, 0xaa, 100 );
s = CH376ByteWrite( buf, size, NULL ); /* 以字节为单位向当前位置写入数据块 */
CH376FileClose( TRUE ); /* 关闭文件,对于字节读写建议自动更新文件长度 */
memset( TarName, 0, 100 );
memset( buf, 0, 100 );
bus_SPI_mutex_release();
if( s == USB_INT_SUCCESS )
return TRUE;
else
if(s == USB_INT_BUF_OVER)
{
beep();
return FALSE;
}
else
return FALSE;
}
int main( void )
{
int i;
int j;
UINT8 res;
UINT8 s;
UINT8 NameBuf[20] = {0};
UINT8 CountT = 0;
UINT32 U_D;
PUINT32 pU_D;
pU_D = &U_D;
// Stop watchdog timer to prevent time out reset
WDTCTL = WDTPW + WDTHOLD;
P1DIR_bit.P1DIR0 = 1;
P1OUT_bit.P1OUT0 = 1;
UartInit();
code_start:
CountT ++;
for(i = 0;i<30000;i++);
printk("Code Start !\r\n");
printk("程序开始 !\r\n");
do{
for(i = 0;i<30000;i++);
res = mInitCH376Host();
}while(res != USB_INT_SUCCESS);
printk("USB_INT_SUCCESS !\r\n");
do{
for(i = 0;i<30000;i++);
res = CH376DiskConnect( ); /* 查询U盘是否连接，返回USB_INT_SUCCESS则说明当前已连接 */
}while(res!=USB_INT_SUCCESS);
printk(" Connect SUCCESS\r\n");
do{
for(i = 0;i<30000;i++);
res = CH376DiskMount( ); /* 查询U盘或SD卡是否准备好，有些U盘可能需多次调用才能成功 */
}while(res!=USB_INT_SUCCESS);
printk(" U is OK !\r\n");
s = CH376DiskCapacity(pU_D);
mStopIfError( s );
printk(" U盘大小:");
printHex((unsigned int)U_D);
printHex((unsigned int)(U_D>>16));
printk("\r\n");
s = CH376DiskQuery(pU_D);
mStopIfError( s );
printk(" 剩余大小:");
printHex((unsigned int)U_D);
printHex((unsigned int)(U_D>>16));
printk("\r\n");
strcpy( NameBuf, "\\2012.TXT" ); /* 目标文件名 */
#if 0
printf( "Open\r\n" );
s = CH376FileOpenPath( NameBuf );
mStopIfError( s );
if ( s == ERR_MISS_FILE ){
printf( "Create\r\n" );
s = CH376FileCreatePath( NameBuf ); /* 新建多级目录下的文件,支持多级目录路径,输入缓冲区必须在RAM中 */
mStopIfError( s );
}
printf( "CH376ByteLocate\r\n" );
s = CH376ByteLocate(0xFFFFFFFF);
mStopIfError( s );
printf( "Write\r\n" );
strcpy( buf, "时间 数据 ---\xd\n" );
s = CH376ByteWrite( buf, strlen(buf), NULL ); /* 以字节为单位向当前位置写入数据块 */
mStopIfError( s );
strcpy( buf, "2012-12-01 01 ---\xd\n" );
buf[9] = '0' + CountT;
for(i = 0; i < 100;i ++){
buf[12] = '0' + i/10;
buf[13] = '0' + i%10;
printf( "Write %s" ,buf);
s = CH376ByteWrite( buf, strlen(buf), NULL ); /* 以字节为单位向当前位置写入数据块 */
mStopIfError( s );
}
printf( "Close\r\n" );
s = CH376FileClose( TRUE ); /* 关闭文件,对于字节读写建议自动更新文件长度 */
mStopIfError( s );
#endif
/* 如果MY_ADC.TXT文件已经存在则添加数据到尾部,如果不存在则新建文件 */
printf( "Open\n" );
s = CH376FileOpen( NameBuf ); /* 打开文件,该文件在根目录下 */
if ( s == USB_INT_SUCCESS ) { /* 文件存在并且已经被打开,移动文件指针到尾部以便添加数据 */
printf( "File size = %ld\n", CH376GetFileSize( ) ); /* 读取当前文件长度 */
printf( "Locate tail\n" );
s = CH376ByteLocate( 0xFFFFFFFF ); /* 移到文件的尾部 */
mStopIfError( s );
}
else if ( s == ERR_MISS_FILE ) { /* 没有找到文件,必须新建文件 */
printf( "Create\n" );
s = CH376FileCreate( NULL ); /* 新建文件并打开,如果文件已经存在则先删除后再新建,不必再提供文件名,刚才已经提供给CH376FileOpen */
mStopIfError( s );
}
else mStopIfError( s ); /* 打开文件时出错 */
printf( "Write begin\n" );
s = sprintf( buf, "此前文件长度= %ld 字节\xd\xa", CH376GetFileSize( ) ); /* 注意字符串长度不能溢出buf,否则加大缓冲区或者分多次写入 */
s = CH376ByteWrite( buf, s, NULL ); /* 以字节为单位向文件写入数据 */
mStopIfError( s );
printf( "Write ADC data\n" );
printf( "Current offset ( file point ) is : ");
for(i = 0;i<1000;i++){
s = sprintf( buf, "%02d.%02d.%02d.%d\xd\xa", 2012 + i/365, 1 + (i / 30) % 12, 1 + i % 30, i );
/* 将二制制数据格式为一行字符串 */
s = CH376ByteWrite( buf, s, NULL ); /* 以字节为单位向文件写入数据 */
/* 有些U盘可能会要求在写数据后等待一会才能继续操作,
所以,如果在某些U盘中发生数据丢失现象,
建议在每次写入数据后稍作延时再继续 */
for(j = 0;j<30;j++);
mStopIfError( s );
printf( "\b\b\b\b\b\b" );
printf( "%6ld", CH376ReadVar32( VAR_CURRENT_OFFSET ) );
/* 读取当前文件指针 */
}
printf( "Write end\n" );
strcpy( buf, "今天的ADC数据到此结束\xd\xa" );
s = CH376ByteWrite( buf, strlen( buf ), NULL ); /* 以字节为单位向文件写入数据 */
mStopIfError( s );
/* 如果实际产品中有实时时钟,可以根据需要将文件的日期和时间修改为实际值,参考EXAM10用CH376DirInfoRead/CH376DirInfoSave实现 */
printf( "Close\n" );
s = CH376FileClose( TRUE ); /* 关闭文件,自动计算文件长度,以字节为单位写文件,建议让程序库关闭文件以便自动更新文件长度 */
mStopIfError( s );
do{
for(i = 0;i<30000;i++);
P1OUT_bit.P1OUT0 = 1;
for(i = 0;i<30000;i++);
P1OUT_bit.P1OUT0 = 0;
res = CH376DiskConnect( ); /* 查询U盘是否连接，返回USB_INT_SUCCESS则说明当前已连接 */
}while(res!=ERR_DISK_DISCON);
printk(" ERR_DISK_DISCON\r\n");
goto code_start;
}
void host( ) {
UINT8 i, s;
UINT8 TotalCount;
UINT16 RealCount;
P_FAT_DIR_INFO pDir;
s = mInitCH376Host( ); /* 初始化CH376 */
mStopIfError( s );
/* 其它电路初始化 */
while ( 1 ) {
printf( "Wait Udisk/SD\n" );
while ( CH376DiskConnect( ) != USB_INT_SUCCESS ) { /* 检查U盘是否连接,等待U盘插入,对于SD卡,可以由单片机直接查询SD卡座的插拔状态引脚 */
if ( IsKeyPress( ) ) { /* 有键按下 */
printf( "Exit USB host mode\n" );
return;
}
mDelaymS( 100 ); /* 没必要频繁查询 */
}
LED_UDISK_IN( ); /* LED亮 */
mDelaymS( 200 ); /* 延时,可选操作,有的USB存储器需要几十毫秒的延时 */
/* 对于检测到USB设备的,最多等待100*50mS,主要针对有些MP3太慢,对于检测到USB设备并且连接DISK_MOUNTED的,最多等待5*50mS,主要针对DiskReady不过的 */
for ( i = 0; i < 100; i ++ ) { /* 最长等待时间,100*50mS */
mDelaymS( 50 );
printf( "Ready ?\n" );
s = CH376DiskMount( ); /* 初始化磁盘并测试磁盘是否就绪 */
if ( s == USB_INT_SUCCESS ) break; /* 准备好 */
else if ( s == ERR_DISK_DISCON ) break; /* 检测到断开,重新检测并计时 */
if ( CH376GetDiskStatus( ) >= DEF_DISK_MOUNTED && i >= 5 ) break; /* 有的U盘总是返回未准备好,不过可以忽略,只要其建立连接MOUNTED且尝试5*50mS */
}
if ( s == ERR_DISK_DISCON ) { /* 检测到断开,重新检测并计时 */
printf( "Device gone\n" );
continue;
}
if ( CH376GetDiskStatus( ) < DEF_DISK_MOUNTED ) { /* 未知USB设备,例如USB键盘、打印机等 */
printf( "Unknown device\n" );
goto UnknownUsbDevice;
}
i = CH376ReadBlock( buf ); /* 如果需要,可以读取数据块CH376_CMD_DATA.DiskMountInq,返回长度 */
if ( i == sizeof( INQUIRY_DATA ) ) { /* U盘的厂商和产品信息 */
buf[ i ] = 0;
printf( "UdiskInfo: %s\n", ((P_INQUIRY_DATA)buf) -> VendorIdStr );
}
/* 读取原文件 */
printf( "Open\n" );
strcpy( buf, "\\C51\\CH376HFT.C" ); /* 源文件名,多级目录下的文件名和路径名必须复制到RAM中再处理,而根目录或者当前目录下的文件名可以在RAM或者ROM中 */
s = CH376FileOpenPath( buf ); /* 打开文件,该文件在C51子目录下 */
if ( s == ERR_MISS_DIR || s == ERR_MISS_FILE ) { /* 没有找到目录或者没有找到文件 */
/* 列出文件,完整枚举可以参考EXAM13全盘枚举 */
if ( s == ERR_MISS_DIR ) strcpy( buf, "\\*" ); /* C51子目录不存在则列出根目录下的文件 */
else strcpy( buf, "\\C51\\CH376*" ); /* CH376HFT.C文件不存在则列出\C51子目录下的以CH376开头的文件 */
printf( "List file %s\n", buf );
s = CH376FileOpenPath( buf ); /* 枚举多级目录下的文件或者目录,输入缓冲区必须在RAM中 */
while ( s == USB_INT_DISK_READ ) { /* 枚举到匹配的文件 */
CH376ReadBlock( buf ); /* 读取枚举到的文件的FAT_DIR_INFO结构,返回长度总是sizeof( FAT_DIR_INFO ) */
pDir = (P_FAT_DIR_INFO)buf; /* 当前文件目录信息 */
if ( pDir -> DIR_Name[0] != '.' ) { /* 不是本级或者上级目录名则继续,否则必须丢弃不处理 */
if ( pDir -> DIR_Name[0] == 0x05 ) pDir -> DIR_Name[0] = 0xE5; /* 特殊字符替换 */
pDir -> DIR_Attr = 0; /* 强制文件名字符串结束以便打印输出 */
printf( "*** EnumName: %s\n", pDir -> DIR_Name ); /* 打印名称,原始8+3格式,未整理成含小数点分隔符 */
}
xWriteCH376Cmd( CMD0H_FILE_ENUM_GO ); /* 继续枚举文件和目录 */
xEndCH376Cmd( );
s = Wait376Interrupt( );
}
if ( s != ERR_MISS_FILE ) mStopIfError( s ); /* 操作出错 */
}
else { /* 找到文件或者出错 */
mStopIfError( s );
TotalCount = 200; /* 准备读取总长度 */
printf( "从文件中读出的前%d个字符是:\n",(UINT16)TotalCount );
while ( TotalCount ) { /* 如果文件比较大,一次读不完,可以再调用CH376ByteRead继续读取,文件指针自动向后移动 */
if ( TotalCount > sizeof(buf) ) i = sizeof(buf); /* 剩余数据较多,限制单次读写的长度不能超过缓冲区大小 */
else i = TotalCount; /* 最后剩余的字节数 */
s = CH376ByteRead( buf, i, &RealCount ); /* 以字节为单位读取数据块,单次读写的长度不能超过缓冲区大小,第二次调用时接着刚才的向后读 */
mStopIfError( s );
TotalCount -= (UINT8)RealCount; /* 计数,减去当前实际已经读出的字符数 */
for ( s=0; s!=RealCount; s++ ) printf( "%C", buf[s] ); /* 显示读出的字符 */
if ( RealCount < i ) { /* 实际读出的字符数少于要求读出的字符数,说明已经到文件的结尾 */
printf( "\n" );
printf( "文件已经结束\n" );
break;
}
}
printf( "Close\n" );
s = CH376FileClose( FALSE ); /* 关闭文件 */
mStopIfError( s );
}
UnknownUsbDevice:
printf( "Take out\n" );
while ( CH376DiskConnect( ) == USB_INT_SUCCESS ) { /* 检查U盘是否连接,等待U盘拔出 */
mDelaymS( 100 );
}
LED_UDISK_OUT( ); /* LED灭 */
mDelaymS( 100 );
}
}
//*****************************************************************************
//
//! \brief CH376 test execute main body.
//!
//! \return None.
//
//*****************************************************************************
static void CH376Execute(void)
{
unsigned char s;
UINT16 usDataCnt;
unsigned int ulFileSize, ulSetcorCnt;
//waiting for USB device get ready
for ( s = 0; s < 10; s ++ )
{
mDelaymS( 50 );
printf( "Ready ?\n\r" );
//
// Initialize disk and check if disk is ready
//
if ( CH376DiskMount( ) == USB_INT_SUCCESS ) break;
}
s = CH376ReadBlock( ucReadData );
TestAssert((s == sizeof( INQUIRY_DATA )), "CH376 API \"CH376ReadBlock()\"error!");
if ( s == sizeof( INQUIRY_DATA ) )
{
//
// get device information
//
ucReadData[ s ] = 0;
printf( "UdiskInfo: %s\n\r", ((P_INQUIRY_DATA)ucReadData)->VendorIdStr);
}
s = CH376DiskCapacity(&ulSetcorCnt);
TestAssert((s == USB_INT_SUCCESS), "CH376 API \"CH376DiskCapacity()\"error!");
printf("Capacity of U-disk: %dMB\n\r", ulSetcorCnt / (1048576 / DEF_SECTOR_SIZE));
s = CH376DiskQuery(&ulSetcorCnt);
TestAssert((s == USB_INT_SUCCESS), "CH376 API \"CH376DiskCapacity()\"error!");
printf("Available capacity: %dMB\n\r", ulSetcorCnt / (1048576 / DEF_SECTOR_SIZE));
s = CH376FileOpenPath("/CH376TST/TST.TXT");
if ( s != USB_INT_SUCCESS )
{
//
// if file path not found, firstly create the folder then create the file
//
s = CH376DirCreate("/CH376TST");
TestAssert((s == USB_INT_SUCCESS), "CH376 API \"CH376DirCreate()\"error!");
s = CH376FileCreate("TST.TXT");
TestAssert((s == USB_INT_SUCCESS), "CH376 API \"CH376FileCreate()\"error!");
s = CH376ByteWrite(ucWriteData, 35, &usDataCnt);
TestAssert((s == USB_INT_SUCCESS), "CH376 API \"CH376ByteWrite()\"error!");
//
// After modifying a file, the parameter of CH376FileClose() must be TRUE to update
// file size or you will find the file not available when you open the file on computer.
//
CH376FileClose(TRUE);
}
else
{
//
// if file found, move file pointer to the end of file, then append data to the file
//
CH376ByteLocate(0x0);
s = CH376ByteWrite(ucWriteData, 35, &usDataCnt);
TestAssert((s == USB_INT_SUCCESS), "CH376 API \"CH376ByteWrite()\"error!");
//
// enable auto update file size
//
CH376FileClose(TRUE);
}
CH376FileOpenPath("/CH376TST/TST.TXT");
ulFileSize = CH376GetFileSize();
CH376ByteRead(ucReadData, 512, &usDataCnt);
for(s = 0; s < ulFileSize; s++)
{
TestAssert((ucReadData[s] == ucWriteData[s]), "CH376 API \"CH376ByteRead()\"error!");
}
CH376FileClose(FALSE);
printf("\n\r All test over!\n\r");
}
