Reprodução de imagens pela saída de uma placa FPGA

Abstract

The development of video generation systems has been an area of ​​growing interest, driven by technological evolution. In this context, this work focused on the design, implementation, and validation of a VHDL synchronization module for precise generation of VGA video signals in FPGA systems. The main objectives included meeting the rigorous VGA timing specifications and providing a stable foundation for video generation systems. The methodology involved the design of synchronization logic, VHDL implementation, simulations in a controlled environment, and practical integration into FPGA boards, with extensive testing to ensure compliance with industry standards. The 'VGA' module developed was able to generate horizontal and vertical synchronization signals, as well as RGB colors, according to VGA specifications. However, chromatic variations were observed during the image conversion process to the .mif format, highlighting the importance of additional considerations at this stage of the project. Limitations related to the chromatic capacity of the board used were identified, impacting the aesthetic quality of the project. As a perspective for improvement, the adaptation of VGA codes for boards with higher chromatic capacity and expanded memory is proposed, aiming at more advanced implementations and diversified applications. This study aims to contribute to the efficient development of VGA systems, offering practical and theoretical insights and following ABNT guidelines, serving as a useful reference for researchers, engineers, and enthusiasts interested in this area.