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OSA : OS_Queue_Send_TO

OS_Queue_Send_TO (queue, message, timeout)

Allowed only in taskSwitches contextUses timer

Same as OS_Queue_Send with exit if timeout expires.

OS_ENABLE_QUEUE constant must be defined in OSAcfg.h.

For PIC16, message queues can be allocated only in bank0 or bank1

Call allowed:

Only in task


queue Queue of messages descriptor. Variable of OST_QUEUE type.
message pointer to message body (OST_MSG)
timeout Time of wait in system ticks - calling OS_Timer periods


timeout If timeout expired then system service OS_IsTimeout will return true


OST_QUEUE queue;
void Task (void)
    static char Buf[20];
    for (;;) {
        OS_Queue_Send_TO (queue, buf, 100); // Wait 100 ticks
        if (OS_IsTimeout()) {
            // Message was not sent!

Old style name


See also

en/osa/ref/allservices/os_queue_send_to.txt · Last modified: 07.10.2010 13:57 (external edit)
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