FreeCalypso > hg > freecalypso-schem2
annotate venus/src/periph/led_npn.v @ 63:4a7db02ddd3e
buzzer circuit implemented
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 01 Dec 2021 20:22:47 +0000 |
parents | 06e95ff0023b |
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rev | line source |
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52
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
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changeset
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1 /* |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
2 * This module captures the circuit for showing the state of a digital signal |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
3 * on a LED using an NPN transistor instead of a MOSFET, like we did for PWL |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
4 * on Caramel2. |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
5 */ |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
6 |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
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7 module led_npn (GND, VBAT, Signal); |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
8 |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
9 input GND, VBAT, Signal; |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
10 |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
11 wire R_to_LED, LED_to_Q; |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
12 |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
13 resistor R (VBAT, R_to_LED); |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
14 basic_LED led (.A(R_to_LED), .C(LED_to_Q)); |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
15 transistor_slot Q (.E(GND), .B(Signal), .C(LED_to_Q)); |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
16 |
06e95ff0023b
ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
17 endmodule |