Embedded System FAQ’s.
Embedded systems are specialized computing systems integrated into devices and equipment to perform specific functions. These systems consist of hardware and software components tailored to the application’s requirements, often featuring real-time operation and low power consumption. Embedded systems are prevalent in diverse domains, including consumer electronics, automotive, healthcare, and industrial automation, where they enhance efficiency, reliability, and functionality. Programming languages such as C and assembly are commonly used to develop embedded software, while real-time operating systems manage system resources. Embedded systems enable innovations in smart devices, IoT applications, and autonomous systems, driving advancements in technology and shaping modern society.
How is the protection and security for an embedded system made?
IPR.
Intellectual property right provides security and protection to embedded systems.
Which type of memory is suitable for low volume production of embedded systems?
Non-volatile.
The devices which use non-volatile memory allow the software to be download and returned in the device. UV erasable EPROM is favorable but EEPROM is also gaining favor. Therefore, this type of memory is used in low volume production.
Which activity is concerned with identifying the task at the final embedded systems?
task-level concurrency management.
There are many design activities associated with the platforms in the embedded system and one such is the task-level concurrency management which helps in identifying the task that needed to be present in the final embedded systems.
Which level simulates the algorithms that are used within the embedded systems?
algorithmic level.
The algorithmic level simulates the algorithm which is used within in the embedded system.
How an embedded system communicate with the outside world?
Peripherals.
The system communicates with the outside world through peripherals.
What is the purpose of memory refresh register of Z80?
To control on-chip DRAM.
In addition to the general purpose registers, a stack pointer, program counter, and two index registers are included in Z80. It was also used in many embedded designs because of its high-quality performance and for its in-built refresh circuitry for DRAMs.
What does MESI stand for?
modified exclusive shared invalid.
The MESI protocol supports a shared state which is a formal mechanism for controlling the cache coherency by using the bus snooping techniques. MESI refers to the states that cached data can access. In MESI protocol, multiple processors can cache shared data.
Identify the standard software components that can be reused in an embedded system design?
operating system.
There are certain software components that can be reused in an embedded system design. These are the operating systems, real-time databases and some other forms of middleware.
What does ICE stand for?
in-circuit emulation.
The ICE or in-circuit emulation is one the traditional method used to emulate the processor in the embedded system so that the software can be downloaded and can be debugged in situ in the end application.