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Organize parallel example

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This commit is contained in:
Jeremy Soller 2019-12-31 22:00:56 -07:00
parent 155a1c62bd
commit f220046ce2
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1 changed files with 16 additions and 16 deletions
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32
src/board/arduino/mega2560/parallel.c
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@ -6,22 +6,6 @@
#include <arch/gpio.h>
// Mapping of 24-pin ribbon cable to GPIOs
static struct Gpio gpios[24] = {
GPIO(B, 1), GPIO(B, 0),
GPIO(B, 3), GPIO(B, 2),
GPIO(L, 1), GPIO(L, 0),
GPIO(L, 3), GPIO(L, 2),
GPIO(L, 5), GPIO(L, 4),
GPIO(L, 7), GPIO(L, 6),
GPIO(G, 1), GPIO(G, 0),
GPIO(D, 7), GPIO(G, 2),
GPIO(C, 1), GPIO(C, 0),
GPIO(C, 3), GPIO(C, 2),
GPIO(C, 5), GPIO(C, 4),
GPIO(C, 7), GPIO(C, 6)
};
// See http://efplus.com/techref/io/parallel/1284/eppmode.htm
struct ParallelPins {
// Data (KSO0 - KSO7) - bi-directional
@ -75,6 +59,22 @@ static struct ParallelPins pins = {
.strap_1 = 12,
};
// Mapping of 24-pin ribbon cable to GPIOs
static struct Gpio gpios[24] = {
GPIO(B, 1), GPIO(B, 0),
GPIO(B, 3), GPIO(B, 2),
GPIO(L, 1), GPIO(L, 0),
GPIO(L, 3), GPIO(L, 2),
GPIO(L, 5), GPIO(L, 4),
GPIO(L, 7), GPIO(L, 6),
GPIO(G, 1), GPIO(G, 0),
GPIO(D, 7), GPIO(G, 2),
GPIO(C, 1), GPIO(C, 0),
GPIO(C, 3), GPIO(C, 2),
GPIO(C, 5), GPIO(C, 4),
GPIO(C, 7), GPIO(C, 6)
};
#define PIN_GPIO(N) \
struct Gpio * N = NULL; \
if (pins.N > 0 && pins.N < 24) N = &gpios[pins.N - 1]; \