temp.c File Reference

Manage temperature sensors. More...

#include "temp.h"
#include <stdlib.h>
#include <avr/eeprom.h>
#include <avr/pgmspace.h>
#include "arduino.h"
#include "delay.h"
#include "debug.h"
#include "sersendf.h"
#include "heater.h"
#include "config.h"
#include <avr/io.h>

Data Structures
struct	temp_sensor_definition_t
	holds metadata for each temperature sensor More...
Defines
#define	DEFINE_TEMP_SENSOR(name, type, pin, additional)   { (type), (pin), (HEATER_ ## name), (additional) },
	help build list of sensors from entries in config.h
#define	HOST
#define	STEPS_PER_M_X   333333
#define	STEPS_PER_M_Y   333333
#define	STEPS_PER_M_Z   333333
#define	MAXIMUM_FEEDRATE_X   2000
#define	MAXIMUM_FEEDRATE_Y   2000
#define	MAXIMUM_FEEDRATE_Z   2000
#define	SEARCH_FEEDRATE_X   60
#define	SEARCH_FEEDRATE_Y   60
#define	SEARCH_FEEDRATE_Z   60
#define	X_MIN   0.0
#define	X_MAX   720.0
#define	Y_MIN   0.0
#define	Y_MAX   420.0
#define	Z_MIN   0.0
#define	Z_MAX   110.0
#define	ACCELERATION_RAMPING
#define	ACCELERATION   50.
#define	_READ(IO)   (IO ## _RPORT & MASK(IO ## _PIN))
#define	_WRITE(IO, v)   do { if (v) { IO ## _WPORT |= MASK(IO ## _PIN); } else { IO ## _WPORT &= ~MASK(IO ## _PIN); }; } while (0)
#define	_TOGGLE(IO)   do { IO ## _RPORT = MASK(IO ## _PIN); } while (0)
#define	_SET_INPUT(IO)   do { IO ## _DDR &= ~MASK(IO ## _PIN); } while (0)
#define	_SET_OUTPUT(IO)   do { IO ## _DDR |= MASK(IO ## _PIN); } while (0)
#define	_GET_INPUT(IO)   ((IO ## _DDR & MASK(IO ## _PIN)) == 0)
#define	_GET_OUTPUT(IO)   ((IO ## _DDR & MASK(IO ## _PIN)) != 0)
#define	READ(IO)   _READ(IO)
#define	WRITE(IO, v)   _WRITE(IO, v)
#define	TOGGLE(IO)   _TOGGLE(IO)
#define	SET_INPUT(IO)   _SET_INPUT(IO)
#define	SET_OUTPUT(IO)   _SET_OUTPUT(IO)
#define	GET_INPUT(IO)   _GET_INPUT(IO)
#define	GET_OUTPUT(IO)   _GET_OUTPUT(IO)
#define	X_STEP_PIN   AIO0
#define	X_DIR_PIN   AIO1
#define	X_MIN_PIN   AIO2
#define	X_INVERT_DIR   1
#define	X_INVERT_MIN   1
#define	Y_STEP_PIN   AIO3
#define	Y_DIR_PIN   AIO4
#define	Y_MIN_PIN   AIO5
#define	Y_INVERT_MIN   1
#define	Z_STEP_PIN   DIO2
#define	Z_DIR_PIN   DIO4
#define	Z_MIN_PIN   DIO7
#define	Z_INVERT_MIN   1
#define	CHARGEPUMP_PIN   DIO3
#define	ESTOP_IN_PIN   DIO8
#define	ESTOP_INVERT_IN   1
#define	BAUD   115200
#define	XONXOFF
#define	MOVEBUFFER_SIZE   8
#define	USE_WATCHDOG
#define	STEP_INTERRUPT_INTERRUPTIBLE   0
#define	ENDSTOP_STEPS   4
Enumerations
enum	temp_flags_enum { PRESENT, TCOPEN }
Functions
void	temp_init ()
	set up temp sensors. Currently only the 'intercom' sensor needs initialisation.
void	temp_sensor_tick ()
	called every 10ms from clock.c - check all temp sensors that are ready for checking
uint8_t	temp_achieved ()
	report whether all temp sensors are reading their target temperatures used for M109 and friends
void	temp_set (temp_sensor_t index, uint16_t temperature)
	specify a target temperature
uint16_t	temp_get (temp_sensor_t index)
	return most recent reading for a sensor
void	temp_print (temp_sensor_t index)
	send temperatures to host
Variables
struct {
temp_flags_enum   temp_flags
	flags
uint16_t   last_read_temp
	last received reading
uint16_t   target_temp
	manipulate attached heater to attempt to achieve this value
uint16_t   temp_residency
	how long have we been close to target temperature in temp ticks?
uint16_t   next_read_time
	how long until we can read this sensor again?
}	temp_sensors_runtime [NUM_TEMP_SENSORS]
	this struct holds the runtime sensor data- read temperatures, targets, etc

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Detailed Description

Manage temperature sensors.

Note:

ALL temperatures are stored as 14.2 fixed point in teacup, so we have a range of 0 - 16383.75 celsius and a precision of 0.25 celsius. That includes the ThermistorTable, which is why you can't copy and paste one from other firmwares which don't do this.

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Function Documentation

uint16_t temp_get

(

temp_sensor_t

index

)

return most recent reading for a sensor

Parameters:

index

sensor to read

void temp_print

(

temp_sensor_t

index

)

send temperatures to host

Parameters:

index

sensor value to send

void temp_set	(	temp_sensor_t	index,
		uint16_t	temperature
	)

specify a target temperature

Parameters:

	index	sensor to set a target for
	temperature	target temperature to aim for