Subject: |
Re: asyn driver problem running Linux 3.8.13 with arm processor |
From: |
Andrew Johnson <[email protected]> |
To: |
<[email protected]> |
Date: |
Fri, 7 Feb 2014 11:13:27 -0600 |
Hi Jim,
On 02/07/2014 10:38 AM, Jim Chen wrote:
> while(1) {
> /* Wait for event from interrupt routine */
> printf("====before\n");
> epicsMessageQueueReceive(intMsgQId, data, sizeof(data));
> printf("====queue responsed\n");
> }
What does the code at the other end of the message queue look like? Does
it get called from interrupt context, or from task-level?
The problem might be that you can't use C++ code inside an ARM ISR (I
don't know whether that's true or not, but it's conceivable), and since
the libCom/osi/os/default/osdMessageQueue.cpp implementation is written
in C++ the problem is with the choice of using the epicsMessageQueue
inthe first place. As I said I don't know whether that is a restriction
but it's something you should check.
- Andrew
--
Advertising may be described as the science of arresting the human
intelligence long enough to get money from it. -- Stephen Leacock
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- RE: asyn driver problem running Linux 3.8.13 with arm processor Jim Chen
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