//创建根目录下的文件并写
void Byte_CREAT_WRITE_DIR(const char * BUF_Name, uint8_t * Content, uint32_t offset )
{
bus_SPI_mutex_apply();
strcpy( (char *)TarName, BUF_Name );/* 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 */
CH376FileCreate( TarName );
CH376ByteWrite( Content, offset, 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();
}
main( ) {
UINT8 s;
mDelaymS( 100 ); /* 延时100毫秒 */
mInitSTDIO( ); /* 为了让计算机通过串口监控演示过程 */
printf( "Start\n" );
s = mInitCH376Host( ); /* 初始化CH376 */
mStopIfError( s );
/* 其它电路初始化 */
while ( 1 ) {
printf( "Wait Udisk\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 */
// mDelaymS( 100 );
// }
while ( 1 ) { /* 与前几行的方法不同,此处是等到中断通知后再查询USB设备连接 */
if ( Query376Interrupt( ) ) { /* 查询CH376中断(INT#引脚为低电平) */
if ( CH376DiskConnect( ) == USB_INT_SUCCESS ) break; /* USB设备连接 */
}
mDelaymS( 100 );
}
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10*50mS */
for ( s = 0; s < 10; s ++ ) { /* 最长等待时间,10*50mS */
mDelaymS( 50 );
printf( "Ready ?\n" );
if ( CH376DiskMount( ) == USB_INT_SUCCESS ) break; /* 初始化磁盘并测试磁盘是否就绪 */
}
s = CH376ReadBlock( buf ); /* 如果需要,可以读取数据块CH376_CMD_DATA.DiskMountInq,返回长度 */
if ( s == sizeof( INQUIRY_DATA ) ) { /* U盘的厂商和产品信息 */
buf[ s ] = 0;
printf( "UdiskInfo: %s\n", ((P_INQUIRY_DATA)buf) -> VendorIdStr );
}
printf( "Check Disk Write Protect ? ...\n" );
s = IsDiskWriteProtect( ); /* 检查U盘是否写保护, 返回USB_INT_SUCCESS说明可以写,返回0xFF说明只读/写保护,返回其它值说明是错误代码 */
if ( s != USB_INT_SUCCESS && s != 0xFF ) { /* 操作失败 */
printf( "Again ...\n" );
mDelaymS( 100 );
s = IsDiskWriteProtect( ); /* 再试一次 */
}
if ( s == USB_INT_SUCCESS ) { /* 可以写 */
printf( "... No !\n" );
printf( "Create a File\n" );
s = CH376FileCreate( "\\NEWFILE.TXT" ); /* 在根目录下新建文件并打开,如果文件已经存在则先删除后再新建 */
mStopIfError( s );
buf[0] = 'O';
buf[1] = 'K';
s = CH376ByteWrite( buf, 2, NULL ); /* 向文件写入数据 */
mStopIfError( s );
printf( "Close\n" );
s = CH376FileClose( TRUE ); /* 自动计算文件长度 */
mStopIfError( s );
if ( SafeRemoveDisk( ) == USB_INT_SUCCESS ) { /* 安全移除U盘 */
printf( "Safe Remove !\n" );
}
else {
printf( "Unsafe Remove !\n" );
}
}
else if ( s == 0xFF ) { /* 写保护 */
printf( "... Yes !\n" );
}
else {
mStopIfError( s ); /* 显示错误代码 */
}
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 );
// }
while ( 1 ) { /* 与前几行的方法不同,此处是等到中断通知后再查询USB设备连接 */
if ( Query376Interrupt( ) ) { /* 查询CH376中断(INT#引脚为低电平) */
if ( CH376DiskConnect( ) != USB_INT_SUCCESS ) break; /* USB设备断开 */
}
mDelaymS( 100 );
}
mDelaymS( 200 );
}
}
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;
}
//*****************************************************************************
//
//! \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");
}
