| ||||
| Home Products Download Events Support | ||||
Technical Support
On-Line Manuals
RL-ARM User's Guide
RL-RTX Overview 
Product Description Product Specification Technical Data Timing Specifications Advantages 
Your First RTX Application 
Theory of Operation Timer Tick Interrupt System Task Manager Task Management Idle Task System Resources Scheduling Options Pre-emptive Scheduling Round-Robin Scheduling Cooperative 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 User Timers FIFO Queue Buffer Error Function Idle Task 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 System Info Task Info Event Viewer Usage Hints ARM Version Cortex Version Create New RTX Application Function Reference 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 RL-USB Example Programs Library Reference AppendixUsage Hints
Here are a few hints to help you if you run into problems when using the RTX kernel.
Function usage
- Functions that begin with os_ can be called from a task but not from an interrupt service routine.
- Functions that begin with isr_ can be called from an IRQ interrupt service routine but not from a task.
- Never call isr_ functions from FIQ (ARM7™, ARM9™) interrupt functions or from the task.
- Never call tsk_lock() or tsk_unlock() from an interrupt function.
- Before the kernel starts, never enable any IRQ interrupt that calls isr_ functions.
Because of a two different implementations of RTX Kernel Library further hints depend on the Library version being used:
| Contact Site Map Press Privacy | Copyright © 2012 ARM Ltd and ARM Germany GmbH. All rights reserved. |
