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Remap SNES to free up some pins for analog/digital output in the future

This commit is contained in:
Travis Burtrum 2020-12-29 19:57:28 -05:00
parent 22682572de
commit a4cb9d52c4
2 changed files with 17 additions and 17 deletions
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20
readme.md
View File

@ -25,12 +25,12 @@ Wiring
| DB-25 Pins | Arduino Pro Micro GPIO | ESP32 GPIO | Radio | SNES | PSX | N64 | Gamecube | Genesis | | DB-25 Pins | Arduino Pro Micro GPIO | ESP32 GPIO | Radio | SNES | PSX | N64 | Gamecube | Genesis |
|---------------|------------------------|------------|----------|--------|--------|----------|----------|-------------| |---------------|------------------------|------------|----------|--------|--------|----------|----------|-------------|
| 1 TX | 1 | 1 | - | - | - | - | - | P1-1 | | 1 TX | 1 | 1 | - | LATCH | - | - | - | P1-1 |
| 2 SDA | 2 | 21 | - | LATCH | DATA | DATA1 | DATA1 | P1-3 | | 2 SDA | 2 | 21 | - | CLOCK | DATA | DATA1 | DATA1 | P1-3 |
| 3 SCL | 3 | 22 | - | CLOCK | CMD | - | - | P1-4 | | 3 SCL | 3 | 22 | - | DATA1 | CMD | - | - | P1-4 |
| 4 Analog | 4 | 15 | - | - | ATT | - | - | P1-6 | | 4 Analog | 4 | 15 | - | DATA2 | ATT | - | - | P1-6 |
| 5 Digital | 5 | 16 | - | - | CLK | - | - | P1-7 | | 5 Digital | 5 | 16 | - | DATA3 | CLK | - | - | P1-7 |
| 6 Analog | 6 | 2 | - | - | - | - | - | P1-9 | | 6 Analog | 6 | 2 | - | DATA4 | - | - | - | P1-9 |
| 7 Digital | 7 | 17 | CE | - | - | - | - | P2-7* | | 7 Digital | 7 | 17 | CE | - | - | - | - | P2-7* |
| 8 Analog | 8 | 4 | CSN | - | - | - | - | - | | 8 Analog | 8 | 4 | CSN | - | - | - | - | - |
| 9 Analog | 9 > 1k Ω | 35 > 1k Ω | - | 330 Ω | 100 Ω | 220 Ω | 680 Ω | 470 Ω | | 9 Analog | 9 > 1k Ω | 35 > 1k Ω | - | 330 Ω | 100 Ω | 220 Ω | 680 Ω | 470 Ω |
@ -42,10 +42,10 @@ Wiring
| 15 SCLK | 15 | 14 | SCLK | - | - | - | - | P2-9* | | 15 SCLK | 15 | 14 | SCLK | - | - | - | - | P2-9* |
| 16 MOSI | 16 | 13 | MOSI | - | - | - | - | - | | 16 MOSI | 16 | 13 | MOSI | - | - | - | - | - |
| 17 - | - | - | - | - | - | - | - | - | | 17 - | - | - | - | - | - | - | - | - |
| 18 Analog | 18 | 27 | - | DATA1 | - | - | - | P2-1 | | 18 Analog | 18 | 27 | - | - | - | - | - | P2-1 |
| 19 Analog | 19 | 26 | - | DATA2 | - | - | - | P2-2 | | 19 Analog | 19 | 26 | - | - | - | - | - | P2-2 |
| 20 Analog | 20 | 25 | - | DATA3 | - | - | - | P2-3 | | 20 Analog | 20 | 25 | - | - | - | - | - | P2-3 |
| 21 Analog | 21 | 33 | - | DATA4 | - | - | - | P2-4 | | 21 Analog | 21 | 33 | - | - | - | - | - | P2-4 |
| 22 - | - | - | - | - | - | - | - | - | | 22 - | - | - | - | - | - | - | - | - |
| 23 3.3V VCC | - | 3.3V VCC | 3.3V VCC | - | - | 3.3V VCC | 3.3V VCC | - | | 23 3.3V VCC | - | 3.3V VCC | 3.3V VCC | - | - | 3.3V VCC | 3.3V VCC | - |
| 24 5V VCC | 5V VCC OUT | 5V VCC | 5V VCC | 5V VCC | 5V VCC | - | 5V VCC | PX-5 5V VCC | | 24 5V VCC | 5V VCC OUT | 5V VCC | 5V VCC | 5V VCC | 5V VCC | - | 5V VCC | PX-5 5V VCC |

14
src/SnesNes.cpp
View File

@ -9,20 +9,20 @@
#include "pins.h" #include "pins.h"
//shared pins between all controllers //shared pins between all controllers
static const int LATCH_PIN = OR_PIN_2; // brown static const int LATCH_PIN = OR_PIN_1; // brown
static const int CLOCK_PIN = OR_PIN_3; // white static const int CLOCK_PIN = OR_PIN_2; // white
//individual data pin for each controller //individual data pin for each controller
static const int DATA_PIN[GAMEPAD_COUNT] = { static const int DATA_PIN[GAMEPAD_COUNT] = {
OR_PIN_18, OR_PIN_3,
#if GAMEPAD_COUNT > 1 #if GAMEPAD_COUNT > 1
OR_PIN_19, OR_PIN_4,
#endif #endif
#if GAMEPAD_COUNT > 2 #if GAMEPAD_COUNT > 2
OR_PIN_20, OR_PIN_5,
#endif #endif
#if GAMEPAD_COUNT > 3 #if GAMEPAD_COUNT > 3
OR_PIN_21, OR_PIN_6,
#endif #endif
}; };
// power red, ground black // power red, ground black
@ -89,7 +89,7 @@ class GameControllers {
} }
void poll(void (*controllerChanged)(const int controller)) { void poll(void (*controllerChanged)(const int controller)) {
memset(changedControllers, 0, GAMEPAD_COUNT); memset(changedControllers, 0, sizeof(changedControllers));
digitalWrite(latchPin, HIGH); digitalWrite(latchPin, HIGH);
delayMicroseconds(12); delayMicroseconds(12);