Configuration Options

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\RL\RTX\Config 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
• Specify the FIFO Queue size
• Specify code for the runtime error 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.