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OSA : OS_Csem_Signal_Now

OS_Csem_Signal_Now (csem)
OS_Csem_Signal_Now_I (csem)

Increase counting semaohore's value by 1. If counting semaphore already has maximum value, then after execution, the service OS_IsEventError will return true.

OS_ENABLE_CSEM constant must be defined in OSAcfg.h. Size of counting semaphores is defined by OS_CSEM_SIZE constant

For PIC16, counting semaphores can only be allocated in bank0 or bank1

Call allowed:

Not in interrupt


csem Counting semaphore. Variable of OST_CSEM type


OS_IsEventError() returns true if counting semaphore already has maximum value


OST_CSEM csem;
void Task (void)
    for (;;) {

Old style name


See also

en/osa/ref/allservices/os_csem_signal_now.txt · Last modified: 07.10.2010 13:56 (external edit)
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