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"stale data" problem resolved.

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This commit is contained in:
Ron Sluiter
2007-08-16 18:48:12 +00:00
parent 3ca2418685
commit 0477a8732f
1 changed files with 28 additions and 9 deletions
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motorApp/OmsSrc/drvOms58.cc
+28 -9
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@@ -2,9 +2,9 @@
FILENAME... drvOms58.cc
USAGE... Motor record driver level support for OMS model VME58.
Version: $Revision: 1.19 $
Version: $Revision: 1.20 $
Modified By: $Author: sluiter $
Last Modified: $Date: 2006-06-16 16:27:45 $
Last Modified: $Date: 2007-08-16 18:48:12 $
*/
/*
@@ -42,6 +42,7 @@ Last Modified: $Date: 2006-06-16 16:27:45 $
* - VME58 ver 2.24-4E
* - VME58 ver 2.35-8
* - VME58 ver 2.41-8
* - VME58 ver 2.42-8
*
* Modification Log:
* -----------------
@@ -89,6 +90,12 @@ Last Modified: $Date: 2006-06-16 16:27:45 $
* `tree_list' not supported..." compiler error message.
* .30 03-23-05 rls - Make OSI.
* .31 05-02-05 rls - Bug fix for stale data delay; set delay = 10ms.
* .32 08-16-07 rls - "stale data" problem was caused by communicating via the
* ASCII commands while the DPRAM was updating.
* - set "stale data delay" to zero.
* - remove "Work around for intermittent wrong LS status" for
* version 2.35 firmware.
* - modify start_status() to wait for update before exiting.
*/
#include <string.h>
@@ -201,7 +208,7 @@ struct
extern "C" {epicsExportAddress(drvet, drvOms58);}
static struct thread_args targs = {SCAN_RATE, &oms58_access, 0.010};
static struct thread_args targs = {SCAN_RATE, &oms58_access, 0.000};
/*----------------functions-----------------*/
@@ -242,12 +249,6 @@ static void query_done(int card, int axis, struct mess_node *nodeptr)
send_mess(card, DONE_QUERY, oms58_axis[axis]);
recv_mess(card, buffer, 1);
#if (CPU == PPC604 || CPU == PPC603)
if (strcmp(motor_state[card]->ident, "VME58 ver 2.35-8") == 0)
epicsThreadSleep(quantum * 2.0); /* Work around for intermittent wrong LS status. */
#endif
if (nodeptr->status.Bits.RA_PROBLEM)
send_mess(card, AXIS_STOP, oms58_axis[axis]);
}
@@ -281,6 +282,15 @@ static void start_status(int card)
cntrlReg.Bits.update = 1;
pmotor->control.cntrlReg = cntrlReg.All;
/* Wait Forever for controller to update. */
cntrlReg.All = pmotor->control.cntrlReg;
while(cntrlReg.Bits.update != 0)
{
Debug(1, "start_status: DPRAM delay.\n");
epicsThreadSleep(quantum);
cntrlReg.All = pmotor->control.cntrlReg;
}
}
}
else
@@ -301,6 +311,15 @@ static void start_status(int card)
cntrlReg.Bits.update = 1;
pmotor->control.cntrlReg = cntrlReg.All;
/* Wait Forever for controller to update. */
cntrlReg.All = pmotor->control.cntrlReg;
while(cntrlReg.Bits.update != 0)
{
Debug(1, "start_status: DPRAM delay.\n");
epicsThreadSleep(quantum);
cntrlReg.All = pmotor->control.cntrlReg;
}
}
}
}