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John Eaton (@jt_eaton)

Retired Asic designer from Hewlett Packard. Now consulting in design methods

Re: Covid-19 Stories

Reply posted 6 years ago (03/29/2020)
I'm taking this seriously. I've seen the numbers and I know how exponential curves work. My wife and I are both in the high risk group and stand a serious chance...

Re: Some doubt about reset bridge

Reply posted 6 years ago (08/07/2019)
If the reset signal deasserts near the clk edge then the first flop may not settle to a valid level before the next clock edge causing the second flop to also go...

Re: Guidelines for porting ASIC RTL to FPGA

Reply posted 9 years ago (04/11/2017)
You do not port asic code to an FPGA. Design is a two step process, you first enter and test the logic that you want and then you target it to the technology that...

Re: Why vendors insist on creating block-diagram editors

Reply posted 10 years ago (03/23/2016)
Remember that Digital design consists of creating leaf level components and then configuring and interconnecting them into a design. Component designers do the former...

Re: Code review. Newbie's first verilog module!

Reply posted 10 years ago (03/23/2016)
I won't comment on the functionality but here are some suggestions for making your module more reusable.module iButton(Never hard code constants in a program. Always...

Re: Exploring adders: carry select adder any benefits?

Reply posted 10 years ago (02/19/2016)
All of this changes when you write code for an Asic. In today's processes you lay out a ripple-carry adder and you minimize the carry chain length by packing it...

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