The intersection of μ and C/OS-II increase MMU and MPU support, suitable for security's purpose rigorous application
Embedded operating system supplier - Micrium announces that increases & mu in its embedded products; C/OS-MMU and & mu; C/OS-MPU two sections of products. These two kinds of products have increased the key memory function in the embedded system. μ C/OS-MMU passes the protection offering time and space for a plurality of independent application, in order to have Administrative unit of memory (MMU) Central processing unit offer memory protect function. μ C/OS-MPU prevents the visit to the unauthorized systematic memory through protecting the memory of the task, destroy the content of the memory, has offered the protection mechanism for CPU with protected location of the memory. They have strengthened the real-time operating system with leading industry (RTOS) -μ C/OS-II, make & mu; C/OS-II is in the rigorous application of the safety requirement, for example there is use value even more in medical treatment and aviation electronic product respect.
Have increased & mu; C/OS-MMU, can guarantee each application is free of other application during execution, interfere with or interactive executive. The utility program can adopt different typological RTOS, including & mu; C/OS-II, μ C/OSEK, or without RTOS, and each application uses the space of protected memory (subregion) Run, does not exist as other subregions. μ C/OS-MMU has wrong handling capacity, can discern the malfunctions carried out in arbitrary application, and allow stopping, deletion or this operation of the rebuild of its. It has simplified the development of the complicated control unit, these units can include the application that come from several suppliers, each supplier can have application of single partition running, take up the whole fictitious CPU like it. μ C/OS-MMU can guarantee applied run time, system engineer need, design stage as, employ, define the intersection of state table and clock beat of management in system only, and activate in main application.
μ C/OS-MPU supports any processor system with MPU, sets up MPU to switch over (process) System. A process can include one or more of thread, and each process has independent right that reads, writes and carries out. Data interchange and & mu among the process; C/OS-II thread realization way is the same, but the treatment among different process is realized through the Kernel. This kind of system has simplified the integration of third party's software, such as protocol stack or other assemblies. Offer information for different process through integrating the wrong supervising system, has simplified debugging and error diagnosis. The hardware protection mechanism can't be suspended by the software. Existing & mu; C/OS employs and does the minor change and adopt & mu; C/OS-MPU.