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Original file line number | Diff line number | Diff line change |
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@@ -94,6 +94,9 @@ | |
}, | ||
{ | ||
"name": "WiFiduino" | ||
}, | ||
{ | ||
"name": "Amperka WiFi Slot" | ||
} | ||
], | ||
"toolsDependencies": [ | ||
|
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,50 @@ | ||
#include "wiring_private.h" | ||
#include "pins_arduino.h" | ||
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extern "C" int __analogRead(uint8_t pin); | ||
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extern "C" int analogRead(uint8_t pin) { | ||
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static uint8_t currentAin = 0; | ||
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delay(0); | ||
if (pin >= ANALOG_INPUT_HARDWARE) { | ||
return 0; | ||
} | ||
uint8_t ain = analog_pin_to_mux_channel[pin]; | ||
if (ain == (uint8_t)NOT_A_PIN) { | ||
return 0; | ||
} | ||
if (currentAin > ain) { | ||
for (int i = 0; i < (8 - currentAin); ++i) | ||
{ | ||
digitalWrite(ANALOG_INPUT_SELECTOR_PIN, HIGH); | ||
digitalWrite(ANALOG_INPUT_SELECTOR_PIN, LOW); | ||
digitalWrite(ANALOG_INPUT_SELECTOR_PIN, HIGH); | ||
digitalWrite(ANALOG_INPUT_SELECTOR_PIN, LOW); | ||
} | ||
currentAin = 0; | ||
} | ||
for (int i = currentAin; i < ain; ++i) | ||
{ | ||
digitalWrite(ANALOG_INPUT_SELECTOR_PIN, HIGH); | ||
digitalWrite(ANALOG_INPUT_SELECTOR_PIN, LOW); | ||
digitalWrite(ANALOG_INPUT_SELECTOR_PIN, HIGH); | ||
digitalWrite(ANALOG_INPUT_SELECTOR_PIN, LOW); | ||
} | ||
currentAin = ain; | ||
return __analogRead(ANALOG_INPUT_HARDWARE); | ||
} | ||
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void initVariant() { | ||
// we need to reset analog mux. When ANALOG_INPUT_SELECTOR_PIN is high | ||
// on ~0.4 ms, mux channel is becoming 0. | ||
// Mux channel is swithing on back \_ front. But there is no switching | ||
// - rc reset is still high when ANALOG_INPUT_SELECTOR_PIN became low | ||
uint16_t resetDelay = 777; | ||
pinMode(ANALOG_INPUT_SELECTOR_PIN, OUTPUT); | ||
digitalWrite(ANALOG_INPUT_SELECTOR_PIN, HIGH); | ||
delayMicroseconds(resetDelay); | ||
digitalWrite(ANALOG_INPUT_SELECTOR_PIN, LOW); | ||
delayMicroseconds(resetDelay); | ||
} |
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