Because X doesn’t always mark the exact spot

Because X doesn’t always mark the exact spot
by Don Dingee on 11-30-2013 at 1:00 pm

Digital hardware has a habit of deciding – based on the bias and behavior of transistors – to drive outputs to a 0, or a 1, or if commanded a high-impedance Z state. SystemVerilog recognizes a fourth state: X, the “unknown” state a simulator has trouble inferring.

Simulators have a choice. Under X-optimism, they can convert the unknown… Read More


Debugging Complex Embedded System – How Easy?

Debugging Complex Embedded System – How Easy?
by Pawan Fangaria on 11-08-2013 at 9:00 am

In today’s world of semiconductor design with SoCs having complex IPs, hardware and software working together on a single chip, it’s hard to imagine a system without embedded software into it. But it is easy to guess how difficult it would be to test that hardware and software embedded system. And often there is limited window of … Read More


Beyond one FPGA comfort zone

Beyond one FPGA comfort zone
by Don Dingee on 04-29-2013 at 5:00 pm

Unless you are a small company with one design team, the chance you have standardized on one FPGA vendor for all your needs, forever and ever, is unlikely. No doubt you probably have a favorite, because of the specific class of part you use most often or the tool you are most familiar with, but I’d bet you use more than one FPGA vendor routinely.… Read More


Is debugging a task, or a continuous process?

Is debugging a task, or a continuous process?
by Don Dingee on 02-22-2013 at 2:59 pm

Early in my so-called EE career, I sat in a workshop led by the director of quality for the Ford truck plant in Louisville, KY, where “Quality is Job #1.” At that time, they were gaining experience in electronic control modules (ECMs) for fuel efficiency and emissions control. Who better to transfer the secrets of Crosby and Deming… Read More


SHIELDing the Android GPU developer in C

SHIELDing the Android GPU developer in C
by Don Dingee on 02-18-2013 at 12:52 pm

Repeat after me: SoCs are paperweights if they can’t be programmed. Succeeding with a new part today means supporting a robust developer program to attract and engage as many creatives as possible. NVIDIA has teamed up with Mentor Graphics in just such an adventure. If you read just the press release, you may have missed the real … Read More