SDI12_boards.h file

Classes

class SDI12Timer

The class used to define the processor timer for the SDI-12 serial emulation.

Typedefs

using sdi12timer_t = uint8_t

Defines

#define ISR_MEM_ACCESS = IRAM_ATTR

Defines a memory access location, if needed for the interrupts service routines.

#define TIMER_IN_USE_STR = "Timer2"

A string description of the timer to use.

#define TIMER_INT_TYPE = uint8_t

The interger type of the timer.

#define TIMER_INT_SIZE = 8

The size in bits of the timer count value.

#define READTIME = TCNT2

The function or macro used to read the clock timer value.

#define PRESCALE_IN_USE_STR = "8MHz/256=31.25kHz"

A string description of the prescaler in use.

#define TICKS_PER_SECOND = 31250

The number of clock ticks per second, after accounting for the prescaler.

#define TICKS_PER_BIT = 26

The number of "ticks" of the timer that occur within the timing of one bit at the SDI-12 baud rate of 1200 bits/second.

#define BITS_PER_TICK_Q10 = 39

The number of "ticks" of the timer per SDI-12 bit, shifted by 2^10.

#define RX_WINDOW_FUDGE = 10

A "fudge factor" to get the Rx to work well. It mostly works to ensure that uneven tick increments get rounded up.

Typedef documentation

Define documentation