Counting Really, Really Fast With An FPGA

2014年6月30日 | By News | Filed in: News.

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During one of [Michael]‘s many forum lurking sessions, he came across a discussion about frequency counting on a CPLD. He wondered if he could do the same on an FPGA, and how hard it would be to count high clock rates. As it turns out, it’s pretty hard with a naive solution. Being a bit more clever turns the task into a cakewalk, with a low-end FPGA being able to count clocks over 500 MHz.

The simplest solution for counting a clock would be to count a clock for a second with a huge, 30-bit counter. This is a terrible … Read the rest

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Counting Really, Really Fast With An FPGA

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