 RL-ARM User's Guide | |
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RL-ARM User's Guide
RL-RTX Overview Product Description
Basic Functions Interprocess Communications Product Specification Technical Data Timing Specifications How To Use Your First RTX Application Theory of Operation Timer Tick Interrupt System Clock Task Task Management Idle Task System Resources Cooperative Multitasking Round-Robin Multitasking Preemptive Multitasking Priority Inversion Stack Management User Timers Interrupt Functions Configuring RTX Kernel Basic RTX Configuration Tasks Stack Size Stack Checking Run in Privileged Mode Hardware Timer Round-Robin Multitasking Idle Task User Timers Advanced RTX Configuration HW Resources Required Configuration Macros Library Files Using RTX Kernel Writing Programs Include Files Defining Tasks Multiple Instances External References Using a Mailbox SWI Functions SVC Functions Debugging Active Tasks System Info Usage Hints ARM Version Cortex Version Create New RTX Application Function Overview Event Flag Management Routines Mailbox Management Routines Memory Allocation Routines Mutex Management Routines Semaphore Management Routines System Functions Task Management Routines Time Management Routines User Timer Management Routines RL-FlashFS RL-TCPnet RL-CAN Example Programs Library Reference AppendixSemaphore Management Routines
| Routine | Attributes | Description |
|---|---|---|
| os_sem_init | Initializes a semaphore object. | |
| os_sem_send | Sends a signal (token) to the semaphore. | |
| os_sem_wait | Waits for a signal (token) from the semaphore. | |
| isr_sem_send | Sends a signal (token) to the semaphore. |
note
- The semaphore management routines enable you to use semaphores to synchronize the activities of the various tasks and to protect shared variables from corruption.
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