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;
}
/* 设置将要操作的文件的文件名 */
uchar c;
xWriteCH376Cmd( CMD10_SET_FILE_NAME );
c = *name;
xWriteCH376Data(c);
while (c)
{
name++;
c = *name;
if (c == DEF_SEPAR_CHAR1 || c == DEF_SEPAR_CHAR2) c = 0; /* 强行将文件名截止 */
xWriteCH376Data(c);
}
if (name[0] == DEF_SEPAR_CHAR1 || name[0] == DEF_SEPAR_CHAR2) CH376WriteVar32( VAR_CURRENT_CLUST, 0 );
return(CH376SendCmdWaitInt(CMD0H_FILE_OPEN));
}
#define CMD1H_FILE_CLOSE 0x36 /* 主机文件模式: 关闭当前已经打开的文件或者目录(文件夹) */
uchar CH376FileClose(uchar UpdateSz) /* 关闭当前已经打开的文件或者目录(文件夹) */
{
xWriteCH376Cmd(CMD1H_FILE_CLOSE);
xWriteCH376Data(UpdateSz);
return(Wait376Interrupt());
}
#define CMD01_RD_USB_DATA0 0x27 /* 从当前USB中断的端点缓冲区或者主机端点的接收缓冲区读取数据块 */
uchar CH376ReadBlock(uchar * buf) /* 从当前主机端点的接收缓冲区读取数据块,返回长度 */
{
uchar s, l;
xWriteCH376Cmd(CMD01_RD_USB_DATA0);
s = l = xReadCH376Data( ); /* 长度 */
if(l)
{
do {
*buf = xReadCH376Data( );
buf ++;
} while ( -- l );
}
return( s );
}
#define CMD2H_BYTE_READ 0x3A /* 主机文件模式: 以字节为单位从当前位置读取数据块 */
#define USB_INT_DISK_READ 0x1D /* USB存储器请求数据读出 */
#define CMD0H_BYTE_RD_GO 0x3B /* 主机文件模式: 继续字节读 */
uchar CH376ByteRead(uchar * buf, uint ReqCount, uint * RealCount ) /* 以字节为单位从当前位置读取数据块 */
{
uchar s;
xWriteCH376Cmd(CMD2H_BYTE_READ);
xWriteCH376Data((uchar)ReqCount);
xWriteCH376Data((uchar)(ReqCount>>8));
if (RealCount) *RealCount = 0;
while ( 1 )
{
s = Wait376Interrupt( );
if (s == USB_INT_DISK_READ)
{
s = CH376ReadBlock(buf); /* 从当前主机端点的接收缓冲区读取数据块,返回长度 */
xWriteCH376Cmd(CMD0H_BYTE_RD_GO);
buf += s;
if (RealCount) *RealCount += s;
}
else return(s); /* 错误 */
}
}
unsigned long CH376Read32bitDat( void ) /* 从CH376芯片读取32位的数据并结束命令 */
{
uchar c0, c1, c2, c3;
c0 = xReadCH376Data( );
c1 = xReadCH376Data( );
c2 = xReadCH376Data( );
c3 = xReadCH376Data( );
return(((unsigned long)c3 << 24) | ((unsigned long)c2 << 16) | ((unsigned long)c1 << 8) | c0 );
}
#define CMD14_READ_VAR32 0x0C /* 读取指定的32位文件系统变量 */
unsigned long CH376ReadVar32(uchar var) /* 读CH376芯片内部的32位变量 */
{
xWriteCH376Cmd(CMD14_READ_VAR32);
xWriteCH376Data(var);
return(CH376Read32bitDat( ) ); /* 从CH376芯片读取32位的数据并结束命令 */
}
#define VAR_FILE_SIZE 0x68 /* 当前文件的长度(总长度32位,低字节在前) */
unsigned long CH376GetFileSize(void) /* 读取当前文件长度 */
{
return(CH376ReadVar32(VAR_FILE_SIZE));
}
