FPGA Interview Questions and Answers
Updated 9 Oct 2024
Q1. What is FPGA and what are its advantages?
FPGA stands for Field Programmable Gate Array. It is a type of integrated circuit that can be programmed after manufacturing.
FPGAs offer flexibility and can be reprogrammed for different applications
They can be used to accelerate certain tasks such as image processing or cryptography
FPGAs can be more power-efficient than traditional CPUs for certain applications
Examples of FPGA manufacturers include Xilinx and Intel (formerly Altera)
Q2. What s diff bet cpntroller and FPGA
Controllers are general-purpose processors used for executing software algorithms, while FPGAs are reconfigurable hardware devices used for implementing custom logic circuits.
Controllers are programmed using software, while FPGAs are configured using hardware description languages like Verilog or VHDL
Controllers are typically used for tasks that require flexibility and programmability, while FPGAs are used for tasks that require high performance and low latency
Controllers hav...read more
Q3. How to debug design on FPGA
Debugging design on FPGA involves using simulation tools, logic analyzers, and oscilloscopes.
Use simulation tools to verify functionality and identify issues
Utilize logic analyzers to analyze signals and troubleshoot problems
Use oscilloscopes to visualize waveforms and timing issues
Check for proper clocking and signal integrity
Verify the design against the specifications
Q4. What is the nature of the job? Pre silicon in FPGA side. What level of Validation is required? What is the role and responsibilities?
The job involves pre-silicon validation testing on FPGA side. The level of validation required is high.
The job requires testing and validating software before it is implemented on the silicon.
The validation process involves testing the software for bugs, errors, and compatibility issues.
The level of validation required is high as any errors or bugs can cause serious issues in the final product.
The role of the software validation test engineer is to ensure that the software is...read more
Q5. main difference between CPLD and FPGA other than large macro cells advantage of FPGA?
CPLDs are simpler and smaller, while FPGAs are more complex and larger with more resources.
CPLDs have fewer logic blocks and are more suited for simple logic functions.
FPGAs have more logic blocks and are more suited for complex logic functions.
CPLDs have limited routing resources, while FPGAs have more flexible routing resources.
CPLDs have lower power consumption than FPGAs.
FPGAs have more advanced features like high-speed transceivers and embedded processors.
Examples of CPL...read more
Q6. ASIC and FPGA abbreviations
ASIC stands for Application-Specific Integrated Circuit and FPGA stands for Field-Programmable Gate Array.
ASIC is a custom-designed chip for a specific application.
FPGA is a programmable chip that can be reconfigured for different tasks.
ASICs are more efficient but expensive, while FPGAs are versatile but less efficient.
Examples: ASICs are used in smartphones for specific functions, while FPGAs are used in prototyping and testing.
Q7. Asic vs fpga difference
ASICs are custom-designed for specific applications, while FPGAs are reprogrammable and more flexible.
ASICs are Application-Specific Integrated Circuits designed for a specific purpose or application.
FPGAs are Field-Programmable Gate Arrays that can be reconfigured for different tasks.
ASICs are more efficient and faster than FPGAs for specific tasks.
FPGAs are more flexible and can be reprogrammed for different functions.
ASICs are more expensive to design and manufacture compa...read more
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