lin-epics-modules/motorBase
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- Local communication timeout constants.

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- In recv_mess(), process return values < 0, same as zero.
This commit is contained in:
Ron Sluiter
2000-04-18 21:01:05 +00:00
parent b08aa6db4e
commit f2d0cd31f1
1 changed files with 31 additions and 17 deletions
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motorApp/NewportSrc/drvMM4000.c
+31 -17
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@@ -2,9 +2,9 @@
FILENAME... drvMM4000.c
USAGE... Motor record driver level support for Newport MM4000.
Version: $Revision: 1.2 $
Version: $Revision: 1.3 $
Modified By: $Author: sluiter $
Last Modified: $Date: 2000-03-03 22:27:22 $
Last Modified: $Date: 2000-04-18 21:01:05 $
*/
/*
@@ -74,7 +74,7 @@ Last Modified: $Date: 2000-03-03 22:27:22 $
#define MOTOR_ON "MO;\r"
#define GET_IDENT "VE;\r"
#define INPUT_TERMINATOR '\r'
#define INPUT_TERMINATOR '\r'
/* Status byte bits */
#define M_AXIS_MOVING 0x01
@@ -87,6 +87,9 @@ Last Modified: $Date: 2000-03-03 22:27:22 $
#define MM4000_NUM_CARDS 4
#define BUFF_SIZE 100 /* Maximum length of string to/from MM4000 */
#define GPIB_TIMEOUT 2000 /* Command timeout in msec. */
#define SERIAL_TIMEOUT 2000 /* Command timeout in msec. */
/*----------------debugging-----------------*/
#ifdef DEBUG
#define Debug(l, f, args...) { if(l<=drvMM4000debug) printf(f,## args); }
@@ -453,15 +456,27 @@ STATIC int send_mess(int card, char const *com, char inchar)
}
/*****************************************************/
/* receive a message from the MM4000 board */
/* recv_mess() */
/*****************************************************/
/*
* FUNCTION... recv_mess(int card, char *com, int flag)
*
* INPUT ARGUMENTS...
* card - controller card # (0,1,...).
* *com - caller's response buffer.
* flag | FLUSH = flush controller's output buffer; set timeout = 0.
* | !FLUSH = retrieve response into caller's buffer; set timeout.
*
* LOGIC...
* IF controller card does not exist.
* ERROR RETURN.
* ENDIF
* NORMAL RETURN.
*/
STATIC int recv_mess(int card, char *com, int flag)
{
struct MMcontroller *cntrl;
int timeout;
int len=0;
int timeout = 0;
int len = 0;
/* Check that card exists */
if (!motor_state[card])
@@ -472,25 +487,24 @@ STATIC int recv_mess(int card, char *com, int flag)
switch (cntrl->port_type)
{
case GPIB_PORT:
if (flag == FLUSH)
timeout = 0;
else
if (flag != FLUSH)
timeout = GPIB_TIMEOUT;
len = gpibIORecv(cntrl->gpibInfo, com, BUFF_SIZE, INPUT_TERMINATOR,
timeout);
break;
case RS232_PORT:
if (flag == FLUSH)
timeout = 0;
else
if (flag != FLUSH)
timeout = SERIAL_TIMEOUT;
len = serialIORecv(cntrl->serialInfo, com, BUFF_SIZE,
INPUT_TERMINATOR, timeout);
break;
}
if (len == 0)
if (len <= 0)
{
com[0] = '\0';
len = 0;
}
else
com[len-1] = '\0';
@@ -634,7 +648,7 @@ STATIC int motor_init()
do
recv_mess(card_index, buff, FLUSH);
while (strlen(buff) != 0);
do
{
send_mess(card_index, READ_POSITION, NULL);