FreeCalypso > hg > freecalypso-schem2

annotate venus/src/periph/battery.v @ 96:ae6951a70d2b

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U403: change from 74LVC2G125 to 74LVC2G126 The two parts have the same footprint and pinout, but '126 3-state buffers have active-high OE inputs instead of active-low. The change is purely for software benefit: having GPIO 11/12 set to 1 correspond to that current contribution being enabled will be much more intuitive for developers and tinkerers.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 09 May 2022 19:27:11 +0000
parents 59fb15426c91
children
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fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
Mychaela Falconia <falcon@freecalypso.org>
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1 /* battery or power supply connector */
fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
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2
fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
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3 module battery (VBAT, GND, Third_pin);
fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
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4
fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
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5 output VBAT, GND;
fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
Mychaela Falconia <falcon@freecalypso.org>
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6 inout Third_pin;
fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
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fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
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8 conn_3pin batt_conn (.pin_1(VBAT),
fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
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9 .pin_2(Third_pin),
fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
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10 .pin_3(GND)
fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
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11 );
fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
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fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
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13 capacitor big_cap (VBAT, GND);
fff7bffc1ab7 venus/src/periph/battery.v: adapted from FCDEV3B
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59fb15426c91 add VBAT tap for calibration measurements
Mychaela Falconia <falcon@freecalypso.org>
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15 /* VBAT tap for calibration measurements */
59fb15426c91 add VBAT tap for calibration measurements
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16 header_2pin vbat_tap (VBAT, GND);
59fb15426c91 add VBAT tap for calibration measurements
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18 endmodule