Description

Compile-time configuration of kernel runtime parameters.

Some kernel properties can be configured statically at compile-time. For some of them it is the only way to configure them at all.

Macros
#define	KERNEL_HAS_MEMORY_PROTECTION
	This turns on memory protection globally.

#define	MPU_STATE_SIZE 7
	How many MPU regions are saved per thread.

#define	MPU_HOSTED_STATE_SIZE 4
	How many MPU regions are always used based on in which process thread is hosted.

#define	OS_TASK_MPU_REGIONS 5
	How many MPU regions can process define.

#define	OS_STACK_SIZE 1024
	How big stack is? In bytes.

#define	OS_THREADS 8
	How many threads can exist.

#define	OS_STACKS 8
	How many stacks can be allocated.

#define	OS_PROCESSES 8
	How many processes can be allocated.

#define	SLEEPERS_MAX (2 * OS_THREADS)
	How many sleeping threads can exist.

Macro Definition Documentation

◆ KERNEL_HAS_MEMORY_PROTECTION

#define KERNEL_HAS_MEMORY_PROTECTION

This turns on memory protection globally.

This is a partially obsolete and unsupported option. CMRX does not support running without memory protection activated as certain mechanism in the kernel are directly expecting MPU will intervene on specific bad behavior of the application.

◆ MPU_HOSTED_STATE_SIZE

#define MPU_HOSTED_STATE_SIZE 4

How many MPU regions are always used based on in which process thread is hosted.

◆ MPU_STATE_SIZE

#define MPU_STATE_SIZE 7

How many MPU regions are saved per thread.

◆ OS_PROCESSES

#define OS_PROCESSES 8

How many processes can be allocated.

◆ OS_STACK_SIZE

#define OS_STACK_SIZE 1024

How big stack is? In bytes.

◆ OS_STACKS

#define OS_STACKS 8

How many stacks can be allocated.

◆ OS_TASK_MPU_REGIONS

#define OS_TASK_MPU_REGIONS 5

How many MPU regions can process define.

◆ OS_THREADS

#define OS_THREADS 8

How many threads can exist.

◆ SLEEPERS_MAX

#define SLEEPERS_MAX (2 * OS_THREADS)

How many sleeping threads can exist.