Industry Articles | Most Popular | SoC News Alerts | RSS Feed

Floating- to fixed-point MATLAB algorithm conversion for FPGAs

	E-mail Save Print Talkback
	Related
	Xilinx, Inc. Silicon IPs
	Xilinx, Inc. Hot IPs
	Endpoint for PCI Express LogiCORE Endpoint PIPE for PCI Express (DO-DI-PCIE-PIPE) H.264 Motion Estimation Engine (DO-DI-H264-ME) MPEG4 Simple Profile Decoder XPS FlexRay Controller More ...
	Latest Articles
	Timing Annotation of UnTimed Functional Models for Architecture Use-Case Architecture-oriented C optimization, part 2: Memory and more Architecture-oriented C optimization, part 1: DSP features Bridging options enable FPGA-based configurable computing Extreme Design: Ultra-compact embedded computer overcomes multiple design challenges
	Most Popular (Updated Daily)
	1 How to calculate CPU utilization 2 A comparison of Network-on-Chip and Busses 3 A Semi-Automatic IP Distribution Tool 4 LDPC (Low Density Parity Check) - A Better Coding Scheme for Wireless PHY Layers 5 FPGA Implementation of AES Encryption and Decryption See the Top 20 >>

By Tom Hill, Xilinx
June 04, 2007 -- dspdesignline.com

In a recent survey conducted by AccelChip Inc. (recently acquired by Xilinx), 53% of the respondents identified floating- to fixed-point conversion as the most difficult aspect of implementing an algorithm on an FPGA (Figure 1).

Figure 1. AccelChip DSP design challenges survey.

Although MATLAB is a powerful algorithm development tool, many of its benefits are reduced during the fixed-point conversion process. For example, new mathematical errors are introduced into the algorithm because of the reduced precision of the fixed-point arithmetic. You must rewrite code to replace high-level functions and operators with low-level models that reflect the actual hardware macro-architecture. And simulation run times can be as much as 50 times longer. For these reasons, MATLAB, the overwhelming choice for algorithm development, is often abandoned in favor of C/C++ for fixed-point modeling.

Click here to read more ...

Contact Xilinx, Inc. Fill out this form for contacting a Xilinx, Inc. representative. Your Name: Your E-mail address: Your Company address: Your Phone Number: Write your message:

Add your Opinion

E-mail This Article

Printer-Friendly Page

list: -1220646494.36 seconds
detail: 0.00103688240051 seconds
prov: 0.00183081626892 seconds
end_new