Date: Mon, 07 May 2001 13:33:41 -0700 (PDT)
From: MGEORGE@SSRL.SLAC.STANFORD.EDU
Subject: using dxp modules from ics...
To: GEORGE@SSRL.SLAC.STANFORD.EDU
X-VMS-To: GEORGE
X-VMS-Cc:

Graham -
The following should give you a good idea of how to clear and read
DXP modules within ics....
- Martin

Using DXP devices within ICS.

1. Assign a channel like any other device.

2. To clear a DXP:
   Use two subroutine calls.
   The value for dxp_mode should be defined as a parameter in the 
   fortran include file ICS_LIBRARY:ICS_USER_DEFS.FOR as DXP_GO_GT_UPD.
   If this is a problem, the actual value should be 2293968.

   int dxp_mode = DXP_GO_GT_UPD;		/* value for the mode   */

   clear_device(&ics_chan);			/* first generic clear  */
   mode_device(&ics_chan,&dxp_mode);		/* then this mode op.   */

3. To read a DXP:
   Each DXP module has four channels, so you should call the following
   subroutine for each ICS DXP device. As for the clear operation, the 
   mode flag ICS_READONLY_STATS is defined in the Fortran include file, 
   it should be 2293764.

   int i,trans = 9,dxp_mode;			/* trans = 9 nums/chan	*/
   unsigned int read_chans[36];

   for(i=0;i<4;i++)				/* for each channel	*/
    {
     dxp_mode = ICS_READONLY_STATS + i;      	/* set the mode flag	*/
     ret = read_device_mode(&ics_chan,		/* same ics channel	*/
			&read_chans[i * trans], /* move down the array	*/	
			&dxp_mode,		/* mode flag		*/
			&trans); 		/* number of chans (9)  */
    }