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Files
os.h/os_mutex.c
Prototype
| Code Block |
|---|
void OSMutexCreate (OS_MUTEX *p_mutex,
CPU_CHAR *p_name,
OS_ERR *p_err) |
Arguments
p_mutex
is a pointer to a mutex control block that must be allocated in the application. The user will need to declare a “global” variable as follows, and pass a pointer to this variable to OSMutexCreate():
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- Mutexes must be created before they are used.
Example Usage
| Code Block | ||
|---|---|---|
| ||
OS_MUTEX DispMutex;
void main (void)
{
OS_ERR err;
:
OSInit(&err); /* Initialize µC/OS-III */
:
:
OSMutexCreate(&DispMutex, /* Create Display Mutex */
"Display Mutex",
&err);
/* Check "err" */
:
:
OSStart(&err); /* Start Multitasking */
} |