概览
描述
This product is a real-time operating system (real-time OS) that is an implementation of the μITRON4.0 specification. μITRON is the predominant real-time OS for embedded systems in Japan. Its low resource requirements, outstanding real-time performance, and broad range of service calls make it very suitable for embedded systems requiring true real-time and multi-tasking capabilities.
In addition, its high degree of compatibility with the compiler package from Renesas Electronics and the configurator which automatically generates startup files will help you greatly reduce development times and get your products to market more quickly.
Successors:M3T-MR30/4 Real-time OS for M16C Series and R8C Family
特性
- Conformance with the µITRON4.0 Specification
The design conforms with the µITRON4.0 Specification, which prescribes a representative OS architecture for embedded control. - ROM-based implementation
The kernel is provided in library format. You can link only the functions you need at the time of system generation and minimize application software size. - Equipped with the configurator
The configurator is equipped which makes the setup of OS construction parameters easier. Using the combination of GUI configurator and cfg8c configurator based command line lets you automatically generate start-up programs that rely on development products by just creating a simple definition file (configuration file), and so on. You can easily and reliably process parts specially suited to the product. [Learn More] - Interlinking with the High-performance Embedded Workshop IDE
OS-embedded applications can be developed using common operations of the Renesas MCU toolchain. - Supported compiler: C/C++ Compiler Package for M16C Series and R8C Family [M3T-NC30WA]
- Learn More
发布信息
Latest Ver.: V1.01.00
Released: Sep 16, 2011
Details of upgrade (See Tool News)
Operating Environment
Agreement Details
目标设备
支持
Additional Details
Successor
M3T-MR30/4 Real-time OS for M16C Series and R8C Family
Specifications
| Target MCU | R8C Family |
|---|---|
| Max. number of tasks | 255 |
| Number of priority levels | 255 |
| Max. number of eventflags | 255 |
| Width of an eventflag | 16 bits |
| Max. number of semaphores | 255 |
| Type of semaphores | Counter type |
| Max. number of data queue | 255 |
| Data queue size | 16 bits |
| Max. number of cyclic handler | 255 |
| Max. number of alarm handler | 255 |
| Number of service call | 43 |
| Kernel language | Assembly language, C language |
| Performance (Time takes for a target task to be executed after the wup_tas is issued.) | 19 microseconds (20MHz) |
| Kernel code size | Approximately 1.5K to 6.5K bytes |
| Kernel RAM usage per task | Data: 11 bytes Stack 8 bytes |
Components of Evaluation License Package
| Kernel library | mr8c.lib |
|---|---|
| Kernel library source files | Not included. (* Included with Mass-production License Package) |
| Configurator | cfg8c |
| Utilities | mr8ctbl |
| Default configuration file | default.cfg |
| C interface library | c8cmr.lib |
| C language include file | itron.h, kernel.h, kernel_api.h, kernel_sysint.h |
| Sample start-up program | [For NC30] crt0mr.a30 [For AS30] start.a30 |
| Sample Section definition file | [For NC30] c_sec.inc [For AS30] asm_sec.inc |
| System RAM area definition database file | sys_ram.inc |
| Table database file | mrtable.tpl |
| Service call file for issuing service call | isssys.mrc |
| Include database file | mr8c.inc |
| MR8C/4 version file | version |
| Sample program | demo.c, smp.cfg |
Components of Mass-production License Package
(1) With source code
- Components of Evaluation License Package
- Mass production rights (For details, see the License Agreement.)
- MR8C/4 kernel libraries (mr8c.lib) source files
(2) No source code
- Components of Evaluation License Package
- Mass production rights (For details, see the License Agreement.)
Processing Flow
