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Fix for comm. synch from "system error" response;

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- eat the MM3000 error response.
- output an error message.
- retry recv_mess().
This commit is contained in:
Ron Sluiter
2003-10-23 19:57:28 +00:00
parent 90bd1ffdff
commit 78f577c72a
1 changed files with 12 additions and 2 deletions
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motorApp/NewportSrc/drvMM3000.cc
+12 -2
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@@ -2,9 +2,9 @@
FILENAME... drvMM3000.cc
USAGE... Motor record driver level support for Newport MM3000.
Version: $Revision: 1.3 $
Version: $Revision: 1.4 $
Modified By: $Author: sluiter $
Last Modified: $Date: 2003-05-28 14:56:45 $
Last Modified: $Date: 2003-10-23 19:57:28 $
*/
/*
@@ -50,6 +50,8 @@ Last Modified: $Date: 2003-05-28 14:56:45 $
* .06 10/02/01 rls - allow one retry after a communication error.
* - use motor status response bit-field.
* .07 05-22-03 rls - Converted to R3.14.2.
* .08 10/23/03 rls - recv_mess() eats the controller error response, outputs
* an error message and retries.
*/
#include <string.h>
@@ -538,11 +540,19 @@ STATIC int recv_mess(int card, char *com, int flag)
len = 0;
}
else
{
/* MM3000 responses are always terminated with CR/LF combination (see
* MM3000 User' Manual Sec. 3.4 NOTE). Strip both CR&LF from buffer
* before returning to caller.
*/
com[len-2] = '\0';
/* Test for "system error" response. */
if (com[0] == 'E')
{
errPrintf( -1, __FILE__, __LINE__, "%s\n", com);
return(recv_mess(card, com, flag));
}
}
Debug(2, "recv_mess(): message = \"%s\"\n", com);
return (len);