SD卡初始化问题

现在SD卡初始化之后，
一直发命令不停，
啥时候算初始化完那？
发命令的顺序是：
CMD5-------->CMD0------>CMD1-------->ACMD41(CMD55+AMCD41)

------------>CMD0------>ACMD41(CMD55+AMCD41)(这里会发两编)

----------->CMD2-------->CMD3------------>CMD9------->CMD13--------->CMD7

---------->CMD55----------------CMD51

然后会Down掉。
0x8ce66d10: GetCommandResponse started
0x8ce73100: BusRequestHandler starts (CMD:51)
0x8ce73100: SendCommand (this:0x000406c0,Cmd:0x0033,Arg:0x00000000,ResponseType:0x0001,bDataTransfer:0x1) starts
0x8ce66d10: GetCommandResponse started
0x8ce66d10: RaiseException: Thread=8ce66d10 Proc=8c226740 'device.exe'
0x8ce66d10: AKY=00000005 PC=03fd34fc(coredll.dll+0x000834fc) RA=80018d18(NK.EXE+0x00017d18) BVA=062bfc48 FSR=8002e094
0x8ce66d10: NKDispatchException: returning failure. Flags=0

这是什么原因？？知道的大哥说一声。谢谢