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comparison venus/src/periph/keypad.v @ 51:9de8e7a43160

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keypad initial implementation
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 27 Nov 2021 07:03:14 +0000
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50:3dbe73bbc0a4 51:9de8e7a43160
1 /*
2 * This Verilog module encapsulates the keypad of FC Venus.
3 *
4 * As currently implemented, KBC/KBR crosspoint choices correspond
5 * to TI's D-Sample, but they can be freely changed by the PCB layout
6 * engineer by editing this Verilog module and regenerating the netlist.
7 */
8
9 module keypad (GND, KBC, KBR, PWON);
10
11 input GND;
12 input [4:0] KBC;
13 output [4:0] KBR;
14 output PWON;
15
16 keyswitch_wrap S401 (KBC[3], KBR[0]); /* left soft key */
17 keyswitch_wrap S402 (KBC[4], KBR[2]); /* navigation up */
18 keyswitch_wrap S403 (KBC[3], KBR[2]); /* right soft key */
19 keyswitch_wrap S404 (KBC[4], KBR[0]); /* navigation left */
20 keyswitch_wrap S405 (KBC[4], KBR[4]); /* navigation center */
21 keyswitch_wrap S406 (KBC[4], KBR[1]); /* navigation right */
22 keyswitch_wrap S407 (KBC[0], KBR[0]); /* green CALL or SEND button */
23 keyswitch_wrap S408 (KBC[4], KBR[3]); /* navigation down */
24 keyswitch_wrap S410 (KBC[0], KBR[1]); /* 1 */
25 keyswitch_wrap S411 (KBC[1], KBR[1]); /* 2 */
26 keyswitch_wrap S412 (KBC[2], KBR[1]); /* 3 */
27 keyswitch_wrap S413 (KBC[0], KBR[2]); /* 4 */
28 keyswitch_wrap S414 (KBC[1], KBR[2]); /* 5 */
29 keyswitch_wrap S415 (KBC[2], KBR[2]); /* 6 */
30 keyswitch_wrap S416 (KBC[0], KBR[3]); /* 7 */
31 keyswitch_wrap S417 (KBC[1], KBR[3]); /* 8 */
32 keyswitch_wrap S418 (KBC[2], KBR[3]); /* 9 */
33 keyswitch_wrap S419 (KBC[0], KBR[4]); /* * */
34 keyswitch_wrap S420 (KBC[1], KBR[4]); /* 0 */
35 keyswitch_wrap S421 (KBC[2], KBR[4]); /* # */
36 keyswitch_wrap S422 (KBC[2], KBR[0]); /* volume up */
37 keyswitch_wrap S423 (KBC[1], KBR[0]); /* volume down */
38 keyswitch_wrap S424 (KBC[3], KBR[1]); /* right side button */
39
40 /* The button in the "red" position is special: it is PWON */
41 keyswitch_wrap S409 (PWON, GND);
42
43 endmodule;