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LED Display

LED Display. LED. Typical LED forward bias voltage: 1.5 to 2.0 V Typical currents needed to light LED range from 2 to 15 mA. Turning on a Diode (1). V2 =3.3 V V1=3.3 V, LED is off. V1=0V, LED is on. This method is used by the 7-segment LED display on basys 2. Turning on a Diode (2).

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LED Display

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  1. LED Display

  2. LED Typical LED forward bias voltage: 1.5 to 2.0 V Typical currents needed to light LED range from 2 to 15 mA.

  3. Turning on a Diode (1) V2 =3.3 V V1=3.3 V, LED is off. V1=0V, LED is on. This method is used by the 7-segment LED display on basys 2

  4. Turning on a Diode (2) V1 =0.0 V V2=3.3 V, LED is on. V1=0V, LED is off. This method is used by the LED outputs on onBasys 2

  5. A 7-Segment Display Containing Seven Light Emitting Diodes Used by Basis2

  6. Segment Values Required to display hex digits from 0 to F

  7. Display Lower Case d

  8. K-map for the segment e

  9. Erroneous Result (Not the right way to display “C”)

  10. Error in Representing “b” 1 1 (missing!) 1 1 1

  11. One Way of Representing “b” 1 1 (missing!) 1 1 1 1

  12. Hex7seg_le.v

  13. hex7seg_le_top

  14. Decimal Point On

  15. Showing Only 1 Digit

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