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what is P( ) and V( ) operation.

Posted by fabrice48 on April 16, 2014

i'm a newbie in RTOS, reading the INTERRUPT CHAPTER of the pic32 practical guide, it was spoken of P() and V() operation applied to binary semaphores, but it wasn't explained before what does it mean ?


what is P( ) and V( ) operation.

Posted by davedoors on April 16, 2014

Google "p v semaphore" and you will have more information about it than you can read.


what is P( ) and V( ) operation.

Posted by fabrice48 on April 16, 2014

once more, thank you dave. my doubt comes from a choice to do : i was not sure if theses fetaure was FreeRtos specific or general os concept. I'm reading this pic32 guide and i'm very pleased to understand because of the very nice explanation. Authors have done a great and carefuul writer job.

DAVE : can i ask you an advice ?, after this book, could you tell me another book to continue reading experience about free rtos


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