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130 Threads found on And Using Mux
I am synthesizing a cholesky decomposition algorithm using verilog and synopsys DC. I've also written a customized cell library, which contains the following cell: and OR XOR IV Nand NOR XNOR DFF mux It was sufficient for me to compile functions like Division and Sqrt.
you should probably describe the circuit connection between the camera (also give the camera part number) and the TW2837. I suspect you've got something connected wrong or are missing something in the way you are connecting them.
Hi all! I have design with clock multiplexers and clock gating cells. I'm using Cadence RC compiler for synthesis. After synthesis, i need to simulate resulting netlist with SDF file using ncsim. When i run the simulation, i see that clock mux and gating cell delays are not '0'. How to get an SDF file with (...)
For (0,1) I get that 1st TG is open and the 2nd TG is closed. Didn't you note that the 2nd pair is driven by S'0, but not S0 ?
I'm trying to understand how 4:1 mux using TGLs works. This is the example which I'm looking at 133499 I've understood how 2:1 mux works but I don't get how 4:1 works. For input1, I understand: for (0,0) both pmos-es get 0 and both nmos-es get 1, so they're both open => the out is (...)
Hi! I am trying to model an Arbiter PUF in Hspice. You can google it if you don't know what that is. So I am trying to implement the delay differences in the multiplexers due to process variations. In order to do that I have to run monte carlo simulations using hspice and vary the oxide thickness and the threshold voltage of the (...)
You'll need at least to activate the mux protocol and have a pppd supporting it.
Hi, I have the logic that generate DDR output signal e.g. assign DDR_out = clk ? DDR_pos_reg : DDR_neg_reg and using DC to synthesis it. clk signal is the select of the mux and create data value on both edge. This architecture is valid as mentioned in thread. But I checked the clock tree log fi
If all the selections are mutually exclusive and all possible selections are defined then it doesn't mater if the code uses a case or an if-elsif structure the result is the same. But writing multiplexers (which is what you are doing) should be done using a case statement.
Hi All, I am new to the frontend. My expertise lies mostly in the back end . I am trying my hand at verilog coding and simulations using ncvim. Some how I a not able to dump a proper vcd file to view in simvision. Can someone please help me to figure out the issue. This is the content of a simple mux ( file (...)
I've got a device I need to connect to multiple power supplies and a controller for testing. The device has several modules that all operate off different voltages (12V, 24V and 48V). The device under test (DUT) has a housing that is used as a common ground point, with all the supplies and controllers connected to it in a (...)
Hi, I am using RTL compiler to synthesize a critical path of muxs, and the tool implements the mux using gates (Nand, OR ... etc). I am afraid this may increase the path delay while the std cell library contains mux cells. Is there a way to instruct the tool to use a std (...)
With stripline or microstrip conductor paths around 20 ps/cm you can design delay lines and select one of 40 lines. However stability of the delay is critically dependant on controlled impedance, layout etc. The delay lines would need to be match terminated to reduce reflections. Alternatively you can search for stock [URL="www.digikey.
I'd say you should define clk1_in and clk2_in at the frequencies they are supposed to be... but, use the report_timing on a flip-flop clocked by the output of the mux and see what it is doing. For clock dividers, use create_generated_clock. Whether you need to do anything for clock gating cells depends if you are using them (...)
It happens if pins are configured as inputs and used for outputs. Configure UART Tx as output pin and Rx as input pin using DDRx register. Zip and post complete project files.
This code looks like a software engineer wrote it - it uses loops, variables and looks nothing like you'd expect synthesisable RTL to look. Have you followed a tutorial? did you follow the coding guidelines and style templates? Also - where is your testbench if you are struggling with the waveform?
Request, Can any one suggest me that how I can interface GSM and GPS both with 8051 microcontroller using Tx and Rx pin of them.. need circuit diagram or c code for them.. I want to send GPS data by GSM module as a message.. Please..:-(
Do you want the difference between lut and mux? or lut and ROM? In terms of FPGA, a lut refers to the small programmable devices (really just ROMS) that create the logic in the design. A ROM would be a memory device made using integrated RAMs or many LUTs.
Hi All, I am using lpc2138 as i2c master to read eight ADCs(AD7400) using a mux(PCA9548a). After sending the slave address, i see only level high(NACK) in the SDA line instead of level 0(ACK). Attached the code and simulator screenshot(image location: ) for your reference.the control rema
Hi, I am trying to figure out what are the possible problems you could get if you connected a mux output to one of its inputs. So that when "select" is '0' it passes input1, otherwise it keeps the output value. I know that it's a combinatorial loop and EDA tools might complain, but how on earth could you get an unstable/oscillating situati