Data Structures | Defines | Enumerations | Functions | Variables

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 "analog.h"
#include "ThermistorTable.h"

Data Structures

struct  temp_sensor_definition_t
 holds metadata for each temperature sensor More...

Defines

#define DEFINE_TEMP_SENSOR(name, type, pin)   { (type), (pin), (HEATER_ ## name) },
 help build list of sensors from entries in config.h

Enumerations

enum  temp_flags_enum { PRESENT, TCOPEN, 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
   uint8_t   temp_residency
 how long have we been close to target temperature?
   uint16_t   next_read_time
 how long until we can read this sensor again?
temp_sensors_runtime [NUM_TEMP_SENSORS]

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.

Function Documentation

uint16_t temp_get ( temp_sensor_t  index )

return most recent reading for a sensor

Parameters:
indexsensor to read
void temp_print ( temp_sensor_t  index )

send temperatures to host

Parameters:
indexsensor value to send

Referenced by process_gcode_command().

void temp_set ( temp_sensor_t  index,
uint16_t  temperature 
)

specify a target temperature

Parameters:
indexsensor to set a target for
temperaturetarget temperature to aim for

Referenced by process_gcode_command().

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