博文

目前显示的是标签为“BRAM”的博文

Latency optimization for image processing pipelines on FPGAs using HLS

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  Let’s dive deeper into   latency optimization for image processing pipelines   on FPGAs using HLS. This is critical for real-time applications like video processing, autonomous vehicles, or medical imaging. Key Challenges in Image Processing HLS Designs High Data Volume : Pixels must be processed at low latency (e.g.,  <16.7 ms/frame for 60 FPS ). Memory Bottlenecks : Off-chip DDR access can dominate latency. Dependency Chains : Sequential operations (e.g., filters) introduce delays. Step-by-Step Latency Optimization Techniques 1. Algorithm-Level Optimizations A. Window Buffering (Line Buffers) Instead of processing entire frames, use  sliding windows  (e.g., 3×3 kernels for convolution). Reduces off-chip memory accesses by  caching neighboring pixels  in on-chip BRAM. cpp # pragma HLS ARRAY_PARTITION variable = line_buffer complete dim = 1 for ( int y = 0 ; y < height ; y ++ ) { for ( int x = 0 ; x < width ; x ++ )...

The six major components of FPGA

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  Field-Programmable Gate Arrays ( FPGAs ) are highly versatile integrated circuits that can be configured to implement a wide range of digital logic designs. The architecture of an FPGA is composed of several key components that work together to provide flexibility, performance, and scalability. Below are the   six major components of an FPGA : 1. Configurable Logic Blocks (CLBs) Description : CLBs are the fundamental building blocks of an FPGA . They contain Look-Up Tables (LUTs), flip-flops, and multiplexers, which can be configured to implement combinational and sequential logic. Function : LUTs can implement any Boolean function by storing truth tables. Flip-flops are used for storing state information (e.g., registers). Multiplexers allow for flexible routing of signals within the CLB. Importance : CLBs enable the FPGA to implement custom logic functions. 2. Programmable Interconnect Description : The programmable interconnect consists of a network of wires and switches...