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add board WiFi Slot (#3916)

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This commit is contained in:
acosinwork
2018-06-04 19:42:11 +03:00
committed by david gauchard
parent ab7e109e4c
commit 9c5c16e9c8
6 changed files with 379 additions and 0 deletions
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50
variants/wifi_slot/analogRead.cpp Normal file
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#include "wiring_private.h"
#include "pins_arduino.h"
extern "C" int __analogRead(uint8_t pin);
extern "C" int analogRead(uint8_t pin) {
static uint8_t currentAin = 0;
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);
}
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);
}