- #TEST TONE GENERATOR V4.4 CODE SERIAL#
- #TEST TONE GENERATOR V4.4 CODE VERIFICATION#
- #TEST TONE GENERATOR V4.4 CODE PROFESSIONAL#
SDI family is one of the most extended interfaces for transmission of uncompressed video between professional equipment. Video formats are evolving fast with increasing resolutions, transmission rates, and video stream complexity. This work focuses on a framework dedicated to systems that use SDI interface to communicate and transmit data, geared toward video applications.
#TEST TONE GENERATOR V4.4 CODE VERIFICATION#
Verification methods are designed to be general and can be adapted for every testing scenario. During the years, these techniques have been supported by Accellera System Initiative and the advantages of its use are demonstrated in using automotive examples. This and other features of UVM facilitate the creating of reusable verification components.
UVM goes further by providing mechanisms that allow constraints to be written as part of a test rather than embedded within dedicated verification components.
This method developed an automatic test-bench system able to perform high-level DUT verification using System Verilog. These verification metrics have been improved and automatized during the last years by Ray Salemi and Mentor Graphics team that proposed the Universal Verification Methodology (UVM). A brief metric description is presented in Section 2. The verification process is usually metric-driven, as for example coverage, that allows to measure the verification progress and determine when the design is ready. This is further emphasized when considering that in real applications, the design needs to be verified with the operating conditions in mind which must include the communication, and synchronization with external interfaces and design correctness needs to be evaluated across various levels.Ĭurrent practices of analyzing designs involve incorporating a test-bench into the design to drive certain signal stimuli and compare the outputs of the design with the expected ones. Hence, the verification process represents a big challenge for design and verification engineers. However, due to the increasing complexity and size of such FPGA-based devices, the verification techniques become very important to validate the concreteness of a design and reduce the hardware errors and the time to market.
FPGAs can also support verification frameworks for other technologies, for example, it is possible to design an ASIC (Application Specific Integrated Circuit) device and perform its verification using an FPGA. Hence, such platforms are a promising technology capable of providing the necessary power/performance trade-offs for emerging applications such as AI and video processing/coding amongst others. Emerging programmable System-on-Chip platforms combining Field Programmable Gate Arrays (FPGAs) with general purpose processors are suitable for running operating systems and to also accelerate algorithms at the hardware level. This necessitates the development of new devices to handle the increasing demands in resolution and bandwidth. Nowadays, there is a high demand for video processing applications such as media and entertainment, security and surveillance, and real-time streaming. A practical implementation using a test example of a macroblock processing chain using SDI video interface shows the viability of the proposed framework for video protocol testing. This approach provides two advantages: cost saving in terms of additional lab test equipment and delivering all-in-one test solution to verify design and implementation. Thus, the model not only permits to evaluate the SDI transport layer but also validates the implementation at ultra low pixel level of the video format. Identical input test patterns of the video protocol under test are generated and fed to DUT for verification. The novelty in the design is the combination of a customized test video signal generator with an implementation clone of DUT transceiver for in-depth protocol debugging. This framework permits simulating the entire process: from test video signal generation to protocol verification in the FPGA which implements the Device Under Test (DUT).
#TEST TONE GENERATOR V4.4 CODE SERIAL#
This paper presents a framework for complete simulation and verification of Serial Digital Interface (SDI) video using a verilog test-bench and geared toward FPGAs.