FreeCalypso > hg > fc-small-hw
view mmtb1/schem+bom/vsrc/led_circuit.v @ 68:8bfa10553e36
lunalcd2/src/MCL: different part for two-post VBAT supply header
The tin-plated part is currently out of stock at Digi-Key, but the
better gold-plated part is in stock and still reasonably inexpensive.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 26 Jun 2021 20:40:29 +0000 |
parents | 0f9bdd60ce50 |
children |
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/* * This module captures the circuit for showing the state of a digital signal * on a LED without loading that digital signal by driving the LED from VBAT * and using a MOSFET to control it. */ module led_circuit (GND, VBAT, Signal); input GND, VBAT, Signal; wire R_to_LED, LED_to_Q; resistor R (VBAT, R_to_LED); diode led (.A(R_to_LED), .C(LED_to_Q)); mosfet Q (.G(Signal), .S(GND), .D(LED_to_Q)); endmodule