Breaking News
Comments
Newest First | Oldest First | Threaded View
KarlS
User Rank
Author
re: Embedded systems design with FPGAs
KarlS   10/16/2010 3:24:20 PM
NO RATINGS
QUOTE[ sounds good, but many times it is difficult to really find out WHY there is a difference in the simulation results] Design complexity naturally makes this difficult, but it could be made easier if the tools were user friendly. The tools start by assuming the design is complete and they do not provide efficient iterations as the design evolves. The early stages of design do not need synthesis to optimize away major pieces of logic, nor does it need place and route, and timing analysis should be deferred to the physical design stage. These things are in the flow and consume a lot of time and may be necessary to produce RTL that conventional simulators use. Just realizing a few basics and producing user friendly tools can help a lot. Hardware consists of data flow and control logic. Data flow is routine no matter the form of design entry. The "balloon/cloud" of control logic is most error prone. The most concise way to define control logic is with Boolean algebra. Simulation is fast and easy especially with synchronous logic, Boolean is text and easily parsed, can be entered as text or HDL can be parsed into Boolean. i.e. a string of if's make an and, else is negation, etc. On the programming side, optimizing C compilers love to throw away the code used to interface with memory mapped IO, so there should be an embedded C, not the application standard with all the libraries, memory allocation, pointer arithmetic, stack overflows, etc.

DrFPGA
User Rank
Author
re: Embedded systems design with FPGAs
DrFPGA   10/12/2010 1:50:43 AM
NO RATINGS
I wish this kind of paper used more actual examples (maybe from happy customers) that showed a real success. These types of solutions often sound good on paper, but when you actually try and use the tool tricky issues crop up. For example, the example "the team can compare the simulation results directly with the results obtained when the block is instantiated in the FPGA. The team can precisely see where the two diverge and systematically determine the problem" sounds good, but many times it is difficult to really find out WHY there is a difference in the simulation results. An error may not show up for many cycles in an embedded design. Now, if you can help me with that problem, I'm interested...

Max The Magnificent
User Rank
Author
re: Embedded systems design with FPGAs
Max The Magnificent   10/8/2010 2:39:28 PM
NO RATINGS
If there's one hot area in electronics design at the moment, that area is FPGAs, which are appearing in all sorts of applications for which they would never have been considered only a few short years ago...



Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Like Us on Facebook
Special Video Section
5G LTE is on the way. These systems will require more ...
Protecting sensitive electronic circuitry from voltage ...
09:45
Watch as a web server authenticates or rejects a water ...
Protecting sensitive electronic circuitry from voltage ...
Watch as a web server authenticates or rejects a water ...
Protecting sensitive electronic circuitry from voltage ...
Power can be a gating factor in success or failure of ...
Get to market faster and connect your next product to the ...
00:44
See how microQSFP is setting a new standard for tomorrow’s ...
The LTC3649 step-down regulator combines key features of a ...
Once the base layer of a design has been taped out, making ...
In this short video we show an LED light demo to ...
The LTC2380-24 is a versatile 24-bit SAR ADC that combines ...
In this short video we show an LED light demo to ...
02:46
Wireless Power enables applications where it is difficult ...
07:41
LEDs are being used in current luxury model automotive ...
With design sizes expected to increase by 5X through 2020, ...
01:48
Linear Technology’s LT8330 and LT8331, two Low Quiescent ...
The quality and reliability of Mill-Max's two-piece ...