Breaking News
Comments
Newest First | Oldest First | Threaded View
jbird481
User Rank
Author
re: Embedded vs. discrete processors: debate at ESC
jbird481   4/16/2010 5:33:43 PM
NO RATINGS
The problem with CPU-inside-FPGA approach, at least with my experience using MicroBlaze in Spartan 3A, is that there is not enough block RAM in the FPGA to hold a typical embedded app. The RAM must hold both code and data, and 45 Kbytes in the 700A part is just not that much. So you have to use an external DRAM. And the DRAM controller IP core is complex, for example the datasheet for the Xilinx mpmc core is over 200 pages in length. So you will have a lot of learning to do! Another problem with CPU-inside-FPGA approach ...when you include cost of external DRAM, and needing to use a larger FPGA to hold CPU .... it is no cheaper than separate CPU and FPGA approach. CPUs like Cortex M3 are very low cost. Jim



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
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 ...
LED lighting is an important feature in today’s and future ...
05:27