annotate venus/src/periph/alt_boot_ctrl.v @ 94:4502eec1e805

D405: use Nexperia part sourced from Digi-Key direct The previously selected part was from a Digi-Key marketplace vendor, and they seem to not actually have that part, as the order has been in limbo for over a month - so I put in the time and effort to look around, and found a readily available equivalent part from Nexperia.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 11 Jan 2022 19:11:22 +0000
parents c27854430cb3
children
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c27854430cb3 add 3-pin header for possible external boot control
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1 /*
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2 * Alternative boot controls in the mobile domain,
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3 * besides USB domain OD buffers.
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4 */
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5
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6 module alt_boot_ctrl (GND, RPWON, nTESTRESET);
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7
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8 input GND;
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9 output RPWON, nTESTRESET;
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10
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11 /* manual RESET button */
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12
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13 keyswitch_wrap reset_sw (nTESTRESET, GND);
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14
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15 /* external boot control header */
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16
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17 header_3pin boot_ctrl_header (.pin_1(GND),
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18 .pin_2(RPWON),
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19 .pin_3(nTESTRESET)
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20 );
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21
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22 endmodule