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Technical Support
On-Line Manuals
RL-ARM User's Guide (MDK v4)
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 RL-RTX
Configuration Options
Tasks
Stack Size
Stack Checking
Run in Privileged Mode
Hardware Timer
Round-Robin Multitasking
User Timers
FIFO Queue Buffer
Idle Task
Error Function
Create New RTX_Config.c
Configuration Macros
Alternate Tick Timer
Low Power RTX
Library Files
Using RL-RTX
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
ARM7/ARM9 Version
Cortex-M 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
Appendix
Memory Allocation Routines
| Routine | Attributes | Description |
|---|---|---|
| _declare_box | Creates a memory pool of fixed size blocks with 4-byte alignment. | |
| _declare_box8 | Creates a memory pool of fixed size blocks with 8-byte alignment. | |
| _init_box | Initializes a memory pool with 4-byte aligned blocks. | |
| _init_box8 | Initializes a memory pool with 8-byte aligned blocks. | |
| _alloc_box | Reentrant | Allocates a memory block from a memory pool. |
| _calloc_box | Reentrant | Allocates a memory block from a memory pool, and clears the contents of the block to 0. |
| _free_box | Reentrant | Returns a memory block back to its memory pool. |
note
- The memory allocation routines enable you to use the system memory dynamically by creating memory pools and using fixed size blocks from the memory pools.
- The _init_box8, _declare_box and _declare_box8 routines are implemented as macros.
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