 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 AppendixBasic RTX Configuration
The RTX kernel must be configured for the embedded applications you create. All configuration settings are found in the RTX_Config.c file, which is located in the \Keil\ARM\Startup directory. RTX_Config.c is configured differently for the different ARM devices. Configuration options in RTX_Config.c allow you to:
- Specify the number of concurrent running tasks
- Specify the number of tasks with user-provided stack
- Specify the stack size for each task
- Enable or disable the stack checking
- Enable or disable running tasks in privileged mode
- Specify the CPU timer number used as the system tick timer
- Specify the input clock frequency for the selected timer
- Specify the timer tick interval
- Enable or disable the round-robin task switching
- Specify the time slice for the round-robin task switching
- Define idle task operations
- Specify the number of user timers
- Specify code for the user timer callback function
There is no default configuration in the RL-RTX library. Hence, you must add the RTX_Config.c configuration file to each project you create.
To customize the RTX kernel's features, you must change the configurable settings in RTX_Config.c.
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