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/*
* Xytronic LF-1600
* Temperature measurement routines
*
* Copyright (c) 2015 Michael Buesch <m@bues.ch>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "measure_temp.h"
#include "measure.h"
#include "timer.h"
#include "scale.h"
#include "controller_temp.h"
#include "controller_current.h"
#include "debug_uart.h"
#include <string.h>
struct meastemp_context {
fixpt_t prev_feedback;
};
static struct meastemp_context meastemp;
static void meastemp_result_callback(fixpt_t measured_phys_value,
enum measure_plausibility plaus)
{
/* Set/reset emergency status. */
if (plaus == MEAS_PLAUSIBLE)
contrtemp_set_emerg(false);
else if (plaus == MEAS_PLAUS_TIMEOUT)
contrtemp_set_emerg(true);
/* Set the controller feedback. */
if (plaus == MEAS_PLAUSIBLE) {
meastemp.prev_feedback = measured_phys_value;
contrcurr_set_restricted(
measured_phys_value < float_to_fixpt(CONTRCURR_RESTRICT_TOTEMP)
);
contrtemp_set_feedback(measured_phys_value);
} else if (plaus == MEAS_NOT_PLAUSIBLE) {
/* Just run the controller with the previous feedback. */
contrtemp_set_feedback(meastemp.prev_feedback);
}
}
static const struct measure_config __flash meastemp_config = {
.name = "mt",
.mux = MEAS_MUX_ADC1,
.ps = MEAS_PS_64,
.ref = MEAS_REF_AREF,
.averaging_timeout_ms = 50,
#ifdef HW_LEGACY
.scale_raw_lo = 210,
.scale_raw_hi = 411,
.scale_phys_lo = FLOAT_TO_FIXPT(150.0),
.scale_phys_hi = FLOAT_TO_FIXPT(480.0),
#endif
#ifdef HW_SMD
#warning "FIXME: The temperature scaling is not correct for the SMD hardware."
.scale_raw_lo = 210,
.scale_raw_hi = 411,
.scale_phys_lo = FLOAT_TO_FIXPT(150.0),
.scale_phys_hi = FLOAT_TO_FIXPT(480.0),
#endif
.plaus_neglim = FLOAT_TO_FIXPT(-20.0),
.plaus_poslim = FLOAT_TO_FIXPT(500.0),
.plaus_timeout_ms = 3000,
.filter_callback = NULL,
.result_callback = meastemp_result_callback,
};
void meastemp_init(void)
{
measure_register_channel(MEAS_CHAN_1, &meastemp_config);
}
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