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| Title: | VAX on VMEbus: KAV30 |
| Notice: | Could have been as fast as 68K but its a VAX! |
| Moderator: | CSSVMS::KAV30_SUPP |
|
| Created: | Thu Apr 18 1991 |
| Last Modified: | Fri Aug 02 1996 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 159 |
| Total number of notes: | 645 |
57.0. "FIFO's - Can a FIFO writer tell when an external FIFO is full?" by ZYDECO::BODA (Realtime Products Support) Tue Jun 09 1992 00:40
Hi,
Related to note 55, Applied Theory is still concerned with the use of FIFO's.
Is there a way for a system writing to a FIFO on a KAV to determine whether
the FIFO is full? (e.g., How can his Motorola 68020 tell if the KAV FIFO
is full? - This would also apply to KAV to KAV.) Is there perhaps a status
register he can check?
Unfortunately, he is not sure that using FIFO's will be suitable for him
since he needs an asynch two-way communication path. More offline.
Thanks,
Alan
| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 57.1 | | HELIX::CROSBIE | | Thu Jun 11 1992 19:24 | 8 |
| Hi Alan,
A write to a full fifo on the KAV30 from an external VMEbus device will
result in a bus error. In the case of the external device being another
KAV30 a %KAV30$_BUS_WRT_ERROR exception will occur.
Graham
|