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onewire for esp32 improved, retry for sensors

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This commit is contained in:
MichaelDvP
2020-08-02 08:54:30 +02:00
parent e735ac0338
commit 91573f5594
4 changed files with 39 additions and 15 deletions
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15
lib/OneWire/OneWire.h
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@@ -78,7 +78,11 @@ class OneWire {
// Perform a 1-Wire reset cycle. Returns 1 if a device responds
// with a presence pulse. Returns 0 if there is no device or the
// bus is shorted or otherwise held low for more than 250uS
#ifdef ARDUINO_ARCH_ESP32
uint8_t IRAM_ATTR reset(void);
#else
uint8_t reset(void);
#endif
// Issue a 1-Wire rom select command, you do the reset first.
void select(const uint8_t rom[8]);
@@ -101,11 +105,18 @@ class OneWire {
// Write a bit. The bus is always left powered at the end, see
// note in write() about that.
void write_bit(uint8_t v);
#ifdef ARDUINO_ARCH_ESP32
void IRAM_ATTR write_bit(uint8_t v);
#else
void write_bit(uint8_t v);
#endif
// Read a bit.
#ifdef ARDUINO_ARCH_ESP32
uint8_t IRAM_ATTR read_bit(void);
#else
uint8_t read_bit(void);
#endif
// Stop forcing power onto the bus. You only need to do this if
// you used the 'power' flag to write() or used a write_bit() call
// and aren't about to do another read or write. You would rather