08 06 02 0D 0A 01 00 02 01 2D 2D 2D 2E 2E 2E 2F 2F 04 00 FF 50 00 00 00 02 2D 2D 2D 2E 2E 2E 2F 2F 04 00 FF 50 00 00 00

08 06 02 0D 多了个 0D

for ( j=0; j{ mCmdParam.ByteRead.mByteCount = sizeof( mCmdParam.ByteRead.mByteBuffer ); /* 请求读出64字节数据, 单次读写的长度不能超过 sizeof( mCmdParam.ByteWrite.mByteBuffer ) */ i = ExecCommand( CMD_ByteRead, 1 ); /* 以字节为单位读取数据*/ mStopIfError( i ); for ( k=0; k!=mCmdParam.ByteRead.mByteCount; k++ ) { printf( "%c", mCmdParam.ByteRead.mByteBuffer[k] ); if ( mCmdParam.ByteRead.mByteCount { printf( "end\n" ); break; } } printf( "Close\n" ); mCmdParam.Close.mUpdateLen = 0; i = ExecCommand( CMD_FileClose, 1 ); /* 关闭文件 */ mStopIfError( i );

unsigned char xdata tim[]={8,6,2,10,1,0, 2, 1, 45,45,45, 46,46,46, 47,47,4, 0 ,255,80, 0,0,0, 2, 45,45,45, 46,46,46, 47,47,4, 0 ,255,80, 0,0,0 };

你好:按照你的要求,我写了一个程序,你参考一下 printf( "Write\n" ); pStr=tim; count = sizeof( tim ); /* 准备写入的数据的总长度 */ while ( count ) { /* 如果较大,分多次写入 */ if ( count < sizeof( mCmdParam.ByteWrite.mByteBuffer ) ) i = count; /* 只剩最后一些数据要写入 */ else i = sizeof( mCmdParam.ByteWrite.mByteBuffer ); /* 数据较多,分多次写入 */ count -= i; /* 计数 */ memcpy( mCmdParam.ByteWrite.mByteBuffer, pStr, i ); /* 复制准备写入的数据到参数结构中,源数据可以来自ADC等,本例是来自程序空间的说明信息 */ pStr += i; mCmdParam.ByteWrite.mByteCount = i; /* 指定本次写入的字节数 */ i = ExecCommand( CMD_ByteWrite, 1+i ); /* 以字节为单位向文件写入数据 */ mStopIfError( i ); }

printf( "Close\n" ); mCmdParam.Close.mUpdateLen = 1; /* 自动计算文件长度,当以字节为单位向文件写入数据后,如果没有用0长度的CMD_ByteWrite更新文件长度,那么可以在关闭文件时让模块自动更新文件长度 */ i = ExecCommand( CMD_FileClose, 1 ); /* 关闭文件,当以字节为单位向文件写入(追加)数据后,必须在用完文件后关闭文件 */ mStopIfError( i ); /* 读取原文件 */ printf( "Open\n" ); strcpy( mCmdParam.Open.mPathName, "\\001.TXT" ); i = ExecCommand( CMD_FileOpen, MAX_PATH_LEN ); /* 打开文件,输入参数置为最大值,省得再计算参数长度 */ printf( "Query\n" ); i = ExecCommand( CMD_FileQuery, 0 ); /* 查询当前文件的信息,没有输入参数 */ mStopIfError( i ); NewSize = mCmdParam.Modify.mFileSize; /* 原文件的长度 */ printf("NewSize=%02x\n",(unsigned short)NewSize); printf("read \n"); while ( NewSize ) { if ( NewSize < sizeof( mCmdParam.ByteWrite.mByteBuffer ) ) count = NewSize; else count= sizeof( mCmdParam.ByteWrite.mByteBuffer ); NewSize -= count; /* 计数 */ mCmdParam.ByteRead.mByteCount = count; i=ExecCommand( CMD_ByteRead, 1 ); mStopIfError( i );

for(j=0;j printf("%02x",(unsigned short)mCmdParam.ByteRead.mByteBuffer[j]); } mCmdParam.Close.mUpdateLen = 0; i = ExecCommand( CMD_FileClose, 1 ); /* 关闭文件 */ mStopIfError( i );

打印输出为: Start Wait Udisk Ready ? Write Close Open Query NewSize=27 read 0806020a010002012d2d2d2e2e2e2f2f0400ff50000000022d2d2d2e2e2e2f2f0400ff50000000