format  void STM_SetTrFunc (StmHn stm, StmTrFunc func, void * obj)
 Input  stm: Stream handle
:  func: Transfer function (STM_TR_NULLFUNC when canceling)
  obj: Registered object
 Output  None
 Function value  None
 Function  Registers a transfer function for the specified stream.
  registration function is called during stream transfer processing.
 Remarks  (a) The registration function has the following format.
  Sint32 (* StmTrFunc) (void * obj, StmHn stm, Sint32 nsct)
  obj: Registered object
: : stm: stream handle
  nsct: Number of sectors that can be transferred
  (b) The registration object is passed to the first argument of the registration function.
  (c) The transfer function can transfer data of up to nsct sectors.
:  (d) Returns the number of sectors actually transferred in the function value.
:  If transfer is in progress at the end of the transfer function, such as DMA, (-1) must be returned. 

  format  Uint32 * STM_StartTrans (StmHn stm, Sint32 * dadr)
 Input  stm: Stream handle
 Output  dadr: Change in source address for each longword transfer
 Function value  Transfer source address
 Function  Starts data transfer processing in the transfer function. 

(1) Change in source address (unit of pointer to Uint32)

File type	Transfer source address change value
CD-ROM file	0
Memory file, SCSI file	1

  Remarks  This function is used when STM_SctToWord and STM_WordToSct are used in the transfer function.
Please call before executing  . 

 Example  volatile Uint32 * src; 

  src = STM_StartTrans (stm, & dadr);
  for (i = 0; i < n; i ++) {
  * dst = * src;
  src + = dadr;
  dst ++;