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Showing posts with label Word Generator. Show all posts
Showing posts with label Word Generator. Show all posts

Saturday, February 19, 2022

Word Generator in Multisim - 7 Segment Counter

Using the Word Generator for 7 Segment Counter Circuit

Date: 2/28/2022

Authors: Bits4Bots Team

We have designed simple 4 bit counter circuits using dip switches and ones using BCD to 7-segment decoder IC's. Here we use the Word Generator instrument in Multisim to send digital words or (bit patterns) into the digital circuit. 

  • Start by placing the Word Generator instrument onto the workspace. Locate this component on the right panel 0101 icon.
  • Next add at least one (1) 7 segment cathode display (any color)
  • Add at BCD to 7 Segment decoder. We used the 4511BP_5V
Power and ground the circuit according to the IC pinouts. See image. 


Wire the circuit by connecting the segments A-G to the decoder. The output pins (0-7) on the Word Generator are used to connect the BCD of the 4511BP chip. The enable (EN) - (~LE in Multisim)  pin is grounded. The LT and BI pins are connected to power. 


Double click the Word Generator component to configure the settings. 

Recommended settings:
  1. Frequency: 60Hz
  2. Controls: Cycle
  3. Display: Binary
  4. Trigger: Internal

Click the "set" tab to configure the following

  1.  Preset Pattern: Up Counter *starting at zero (0)
  2. Display Type: Hex
  3. Buffer Size: 0400 by default
  4. Output Voltage Level: 4.5V - High and 500mV - Low by default



Now run the simulation by clicking the green icon in the Multisim ribbon.


Further learning: Try adding a switch to control the trigger externally. Also add a second 7 segment display and cascade it to count up to 6 bits (63). If you are really into electronics how about adding three (3) 7 segment displays and counting up to 8 bits (255).




🖰 Drag and drop the snippet below and simulate it on your own.

Word Generator Snippet

If you enjoyed this project follow us here and on Instagram.



References: 

  1. https://www.digikey.com/en/maker/projects/how-to-interface-a-seven-segment-display-with-an-arduino/9c05f147618c4fe3b8bb79acce5c60e3
  2. https://zone.ni.com/reference/en-XX/help/375482B-01/multisim/wordgenerator/#:~:text=Multisim%2014.2%20Help,word%20generator%20to%20the%20circuit.
  3. https://images.slideplayer.com/19/5767463/slides/slide_22.jpg

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