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[FreeRTOS Home] [Live FreeRTOS Forum] [FAQ] [Archive Top] [January 2016 Threads] Interlocking code partsPosted by gerhardkreuzer on January 20, 2016 Hi,
I have to switch some relays and so I have to wait until this relays stop bouncing. Ok, I will have a sequence like this:
switchRelays(); // not blocking
switchOtherRelays(); // not blocking
prepareSomethingElse(); // not blocking
// Wait until all semaphores or mutexes or whatever were free e.g. given
if ( getWhatEverSemaphoreOrMutex() == true
{ start out working
}
Problem:
This is going on in one task. Semaphores and Mutexes were for sync between tasks.
How can I do this best?
With best regards
Gerhard
Interlocking code partsPosted by edwards3 on January 20, 2016 I don't understand what you are using the semaphores for. What is giving the semaphores? An interrupt that executes a service routine when the relays stop bouncing?
Interlocking code partsPosted by gerhardkreuzer on January 20, 2016 Hi,
I take a semaphore, switch the relays and start a timer, one shot. After this timer expires the semaphore is given in a callback.
Using recursive semaphores would allow to take the semaphore more then once (more than one relay, different relay types, different bouncing time ...) and block the work until all semaphores were given in the timers callbacks.
With best regards
Gerhard
Interlocking code partsPosted by rtel on January 21, 2016 Noting your other more recent post - is this question still open?
Interlocking code partsPosted by gerhardkreuzer on January 21, 2016 yes, this ticket can be closed now.
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