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Recent content by Yaso

  1. Y

    SRAM and processor frequency

    Will, I asked you from the beginning about the specs that you want from me to mention! Sorry that I just don't know what detail could be helpful or not!! Thanks anyway.. And btw in case you needed anything about the system you can check this...
  2. Y

    SRAM and processor frequency

    Oh Ok! Its Intel PXA271 and SRAM as my memory
  3. Y

    SRAM and processor frequency

    Its a wireless sensor node with an image sensor
  4. Y

    SRAM and processor frequency

    The processor itself can work at a frequency as low as 13MHz! Can you please elaborate more at why it won't work? And what additional details do you need so I can be more specific
  5. Y

    SRAM and processor frequency

    Hey everyone, If my RAM operates at 40MHz and my processor at 104MHz. How will this affect my system? Thanks an advance
  6. Y

    Schedule-Driven Sensor Nodes

    Hey Everyone, I have a misunderstanding about the difference between samples and events in a wireless sensor node? Are they the same? Or the data before processing is considered as samples while after processing is an event? Can sensors detect events before processing data? Thanks in advance.
  7. Y

    Time for SRAM in a senosr node to get full with data

    Thanks a lot!
  8. Y

    Time for SRAM in a senosr node to get full with data

    Hey Everyone, If I have a sensor node with 32KB SRAM. The node is sensing, storing and sensing. How much time does it need for the SRAM to get full. Because I want to write to it and then turn the radio on and start reading. Your help is appreciated
  9. Y

    Memories in Wireless sensor nodes

    Hey Everyone, In a typical wsn there is SRAM, DRAM and Flash. When the nodes senses the data and then process it will it be saved in sram first then dram and then it is moved to Flash. What it the condition or criterion to move the data from SRAM to Flash or DRAM? Why do I need to do so and...
  10. Y

    Design a filter in Multisim

    Hey everyone, So I have this question: In a certain application an output signal with f=500 Hz is affected by a DC offset and a 400 KHz noise signal. Design, Simulate and implement a circuit that will cancel the offset and attenuate the noise signal by around 20 dB. Shall I design first a low...
  11. Y

    Size of the memory required

    I'm taking 10k/s each 20 minutes.
  12. Y

    Size of the memory required

    Hi Everyone, How can I calculate the size of the SRAM required if I have an application with sampling frequency of 10K/s in a sensor node and express each sample with 8 bits. Regards, Yasmin
  13. Y

    [SOLVED] Frequency of the sensor

    Hey All, I'm calculating the power for writing to an embedded memory used in a wireless sensor node. I have its writing time and it equals 0.2ns, while the current required for the writing is assumed to be 600uA. Hence the energy consumed is 600u*0.2n = 0.12 pJ. Now I need to calculate the...
  14. Y

    verilog-a in synopsys custom design

    I just checked it. Yes, I have written .tran in the .spi file and still I'n not getting .tr0 after simulating!
  15. Y

    verilog-a in synopsys custom design

    Dear All, How can I use waveview for a schematic that contains only a veriloga symbol and a voltage source in hspice. No .tr0 file is created instead I'm having .valog! Any help is really appreciated.
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