FreeCalypso > hg > freecalypso-schem2

annotate venus/src/periph/led_npn.v @ 93:0a26e46b2fc2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
change VSP tap header to 6 pins, add CLK13M
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Dec 2021 05:38:21 +0000
parents 06e95ff0023b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
52
06e95ff0023b ON_nOFF indicator LED implemented
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
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
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