I use the Q command at the C level and got the list of accepted my HDD Seagate 7200.11 command, something like this:

Level 1 D: Rev 0001.0000, Flash, DisplayMemoryBlock, D [AddrHi], [AddrLo], [CompareValue], [numBytes], [Opts]
Level 1 G: Rev 0001.0000, Overlay, GenericRwRequest, G [Parm0], [Parm1], [Parm2] ... [Parm9]
Level 1 N: Rev 0001.0000, Overlay, SmartControl, N [subcmd], [SubCmdParm0], [SubCmdParm1]
Level 1 S: Rev 0001.0000, Flash, EditProcessorMemoryByte, S [AddrHi], [AddrLo], [MemValue], [numBytes], [Opts]
Level 1 U: Rev 0001.0000, Flash, EditBufferMemoryByte, U [AddrHi], [AddrLo], [MemValue], [numBytes], [Opts]
Level 1 c: Rev 0001.0000, Overlay, BufferCompare, c [SRCBLK], [RefBlk], [NumBlks], [ContOnErr]
Level 1 e: Rev 0001.0000, Flash, SpinDownAndResetDrive, and [MsecDelay], [Opts]
Level 1 m: Rev 0001.0000, Flash, EditProcessorMemoryWord, m [AddrHi], [AddrLo], [MemValue], [numBytes], [Opts]
Level 2 July: Rev 0001.0000, Overlay, WrVerifyChs, 7 [Sec], [NumSecs], [WrBufBlk], [Opts]
Level 2 B: Rev 0001.0000, Overlay, BufferDisplay, B [DisplayBlk], [RefBlk], [NumBlks], [Opts], [SymBits]
Level 2 C: Rev 0001.0000, Overlay, BufferCopy, C [SRCBLK], [DestBlk], [NumBlks]
Level 2 E: Rev 0001.0000, Overlay, DisplayEditLog, E [LogNum], [ErrCodeOrSpecialFuncKey], [SpecialFunc]
Level 2 F: Rev 0001.0001, Overlay, Format, F [PSctr], [Action]
Level 2 H: Rev 0001.0000, Overlay, SelectHd, H [Hd] [SkType], [Options]
Level 2 I: Rev 0001.0000, Overlay, DisplayModifyAdaptiveParm,
I [ParmValue], [GroupId], [ParmId], [P3], [P4], [P5], [P6], [UpdateOpts]
Level 2 K: Rev 0001.0000, Overlay, SetTrackingOffset, K [OffsetValue], [PersOrTempOpt], [UnitsOpt]
Level 2 M: Rev 0001.0000, Flash, SetDiagIdleMode, M [ModeSelect], [modemask], [ResetToPowerOn]
Level 2 O: Rev 0001.0000, Overlay, SeekFromCylToCyl, O [StartPhyCyl0], [StartPhyCyl1], [NumSkPairs], [NumSeconds], [Hd]
Level 2 P: Rev 0001.0000, Overlay, BufferSetPattern,
P [PatternSelOrPatternLow] [PatternHi] [PatternBits], [Opts], [BlkNum] [NumBlks]
Level 2 Q: Rev 0001.0000, Overlay, WrRdRdChs, Q [Sec], [NumSecs], [DynamicSparingOpt], [PhyOpt], [Opts]
Level 2 R: Rev 0001.0000, Overlay, RdChs, R [Sec], [NumSecs], [DynamicSparingOpt], [PhyOpt], [Opts]
Level 2 S: Rev 0001.0001, Overlay, SkToLogCyl, S [Cyl], [Hd] [Offset], [OffsetUnitsOpt], [SkType], [Options]
Level 2 T: Rev 0001.0000, Overlay, MeasureThroughput, T [Opts], [MinSkew], [MaxSkew], [SkewStep]
Level 2 U: Rev 0001.0000, Flash, SpinUpDrive, U [HoldState], [Hd] [Cyl]
Level 2 V: Rev 0001.0000, Overlay, RdVerifyChs, V [Sec], [NumSecs], [CompareBlk], [Opts]
Level 2 W: Rev 0001.0000, Overlay, WrChs, W [Sec], [NumSecs], [DynamicSparingOpt], [PhyOpt], [Opts]
Level 2 X: Rev 0001.0000, Overlay, DisplayTrkSectorInfo, X [LogCyl], [Hd] [SysAreaOpt], [Opts], [RowsPerPage]
Level 2 Y: Rev 000A.0000, Overlay, SetDerpRetries, Y [Mode], [MaxRdRetries], [MaxWrtRetries], [OtcTLevel], [Options]
Level 2 Z: Rev 0001.0000, Flash, SpinDownDrive, Z
Level 2 c: Rev 0001.0000, Overlay, BufferCompare, c [SRCBLK], [RefBlk], [NumBlks], [ContOnErr]
Level 2 h Rev 0001.0000, Overlay, XlatePhySec, h [Sec], [NumSecs]
Level 2 j: Rev 0002.0000, Overlay, RdWedge,
j [WedgeAddr] [NumWedges] [NumSkipedWedges] [TranSize], [Opts], [RegAddr0], ..., [RegAddr13]
Level 2 L: Rev 0001.0000, Overlay, XlateLogSec, q [Sec], [NumSecs]
Level 2 r: Rev 0001.0000, Overlay, RdLongOrSystemChs,
r [LongSec] [LongSecsOrSysSec] [SysSecs] [LongPhySecOpt] [longopts] [SysOpts]
Level 2 s: Rev 0001.0000, Overlay, SkToPhyCyl, s [Cyl], [Hd] [ValidKey], [Offset], [OffsetUnitsOpt], [SkType], [Options]
Level 2 t: Rev 0001.0000, Overlay, XlateWedge, t [Wdg], [NumWdgs]
Level 2 u: Rev 0001.0000, Overlay, EnableDisableChannelPreampRegDisplay, u [EnableDisableOpt]
V Level 2: Rev 0002.0000, Overlay, ConvertTrackPercentageToOffsetCount, v [Percentage]
Level 2 w: Rev 0001.0000, Overlay, WrLongOrSystemChs,
w [LongSec], [LongSecsOrSysSec], [SysSecs], [LongPhySecOpt], [SysOpts]
Level 2 x: Rev 0002.0000, Overlay, DisplayZoneInfo, x [Partition], [Hd] [Zone]
Level 2: Rev 0001.0000, Overlay, SetDerpRetryState and [Type], [PathState], [RetryStateCnt], [LoopCnt1], [LoopCnt2]
Level 2 z: Rev 0002.0000, Overlay, WrWedge,
z [WedgeAddr] [NumWedges] [NumSkipedWedges] [TranSize] [opt], [RegAddr0], ..., [RegAddr13]
.................................................. ....

But did not specify which parameters to use these commands??

Greetings !

You might want to read this :

http://malthus.zapto.org/viewtopic.php?f=6&t=3

Check the last 2 posts on the thread !

Madoka, thank you very much

No problem !

Madoka ,thanks to the document you recommended and have an idea of how to apply the commands, but in reality the problem is that my HDD when connected to the command terminal poster as I get in this
Boot 0x40M
Spin Up
Trans.

Spin Up
SpinOK
(P) SATA Reset
LED: 000000BD SAddr:0000988E
LED: 000000BD SAddr:0000988E
.......


  and I can not enter any comando.Podria you help me with this problem.