• RTOS (RTX) Mutex-Semaphore problem
    Hi all , I thought the only differences between a Mutex and a semaphore are the count(Semaphore Capability) and priority inversion(Semaphore Capability) . Today , I’ve encountered something strange...
  • RTX semaphore / mutex
    Hi all, I am struggling using mutexes/semaphores in RTX, since this RTOS does have the ugly restriction of only one timer per running task. I digged a bit deeper and realized, that most ARM cores...
  • RTX Mutex Vs  Binary Semaphore
    Hi Experts, In CMSIS RTX how the mutex and binary semaphore is handled ? For example, in case of mutex is locked for some hardware peripheral drivers whether the task switch will be disabled ? or by any...
  • using mailboxes or semaphores causes crash
    Hi, if I make any calls to mailboxes or semaphores, my application crashes. I can't even debug what happenned, all I get is "Could not stop ARM device!". If I comment out the calls to mailboxes ...
  • What happens to mutexes and semaphores when a task is deleted
    If I have a 2 tasks running that require the same semaphore (or mutex), and task 1 currently has control of it. Now there is a third task that deletes task 1 before task 1 has a chance to release the...