Modified ADC measurement of PM10 driver to include adc-zoul direct access
This commit is contained in:
Toni Lozano
parent
8337843d69
commit
1f6dafecb0
5 changed files with 32 additions and 17 deletions
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@ -1,12 +1,11 @@
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DEFINES+=PROJECT_CONF_H=\"project-conf.h\"
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CONTIKI_PROJECT = zoul-demo test-tsl2563 test-sht25 test-pwm test-power-mgmt
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ONTIKI_PROJECT += test-bmp085-bmp180 test-motion test-rotation-sensor
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CONTIKI_PROJECT += test-bmp085-bmp180 test-motion test-rotation-sensor
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CONTIKI_PROJECT += test-grove-light-sensor test-grove-loudness-sensor
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CONTIKI_PROJECT += test-weather-meter test-grove-gyro test-lcd
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CONTIKI_PROJECT += test-pm10-sensor test-vac-sensor test-aac-sensor
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CONTIKI_TARGET_SOURCEFILES += tsl2563.c sht25.c bmpx8x.c motion-sensor.c
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CONTIKI_TARGET_SOURCEFILES += adc-sensors.c weather-meter.c grove-gyro.c
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CONTIKI_TARGET_SOURCEFILES += rgb-bl-lcd.c pm10-sensor.c
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@ -54,7 +54,6 @@
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#define LOOP_PERIOD 2
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#define LOOP_INTERVAL (CLOCK_SECOND * LOOP_PERIOD)
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#define LEDS_PERIODIC LEDS_GREEN
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#define BUTTON_PRESS_EVENT_INTERVAL (CLOCK_SECOND)
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/*---------------------------------------------------------------------------*/
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static struct etimer et;
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@ -72,7 +71,7 @@ PROCESS_THREAD(test_aac_sensor_process, ev, data)
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/* Configure the ADC ports */
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/* Use pin number not mask, for example if using the PA5 pin then use 5 */
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printf("return configure, %d \n", adc_sensors.configure(ANALOG_AAC_SENSOR, ADC_PIN));
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adc_sensors.configure(ANALOG_AAC_SENSOR, ADC_PIN);
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printf("AAC test application\n");
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leds_on(LEDS_PERIODIC);
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@ -72,7 +72,7 @@ PROCESS_THREAD(test_vac_sensor_process, ev, data)
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/* Configure the ADC ports */
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/* Use pin number not mask, for example if using the PA5 pin then use 5 */
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printf("return configure, %d \n", adc_sensors.configure(ANALOG_VAC_SENSOR, ADC_PIN));
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adc_sensors.configure(ANALOG_VAC_SENSOR, ADC_PIN);
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printf("VAC test application\n");
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leds_on(LEDS_PERIODIC);
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@ -1,4 +1,4 @@
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/*
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/*
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* Copyright (c) 2016, Zolertia <http://www.zolertia.com>
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* All rights reserved.
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*
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@ -43,6 +43,8 @@
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#include <stdio.h>
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#include "contiki.h"
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#include "adc-sensors.h"
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#include "adc-zoul.h"
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#include "zoul-sensors.h"
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#include "dev/pm10-sensor.h"
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#include "dev/sys-ctrl.h"
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#include "lib/sensors.h"
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@ -52,7 +54,7 @@
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#define PM10_SENSOR_PORT_BASE GPIO_PORT_TO_BASE(PM10_SENSOR_CTRL_PORT)
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#define PM10_SENSOR_PIN_MASK GPIO_PIN_MASK(PM10_SENSOR_CTRL_PIN)
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/*---------------------------------------------------------------------------*/
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static uint8_t enabled;
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static int pm10_channel;
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/*---------------------------------------------------------------------------*/
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static int
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configure(int type, int value)
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@ -68,20 +70,20 @@ configure(int type, int value)
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GPIO_SET_OUTPUT(PM10_SENSOR_PORT_BASE, PM10_SENSOR_PIN_MASK);
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GPIO_CLR_PIN(PM10_SENSOR_PORT_BASE, PM10_SENSOR_PIN_MASK);
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enabled = 1;
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return adc_sensors.configure(ANALOG_PM10_SENSOR, value);
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pm10_channel = (1 << value);
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return adc_zoul.configure(SENSORS_HW_INIT, pm10_channel);
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}
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enabled = 0;
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pm10_channel = 0;
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return PM10_SUCCESS;
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}
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/*---------------------------------------------------------------------------*/
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static int
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value(int type)
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{
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uint16_t val;
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uint32_t val;
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if(!enabled) {
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if(!pm10_channel) {
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return PM10_ERROR;
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}
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@ -90,17 +92,30 @@ value(int type)
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/* Pulse wave delay */
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clock_delay_usec(PM10_SENSOR_PULSE_DELAY);
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/* Data acquisition */
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val = adc_sensors.value(ANALOG_PM10_SENSOR);
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/* Clear pulse wave pin */
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GPIO_CLR_PIN(PM10_SENSOR_PORT_BASE, PM10_SENSOR_PIN_MASK);
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val = (uint32_t)adc_zoul.value(pm10_channel);
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if(val == ZOUL_SENSORS_ERROR) {
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printf("PM10 sensor: failed retrieving data\n");
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return PM10_ERROR;
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}
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/* Default voltage divisor relation is 5/3 aprox, change at adc_wrapper.h,
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* calculations below assume a decimation rate of 512 (12 bits ENOB) and
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* AVVD5 voltage reference of 3.3V
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*/
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val *= PM10_EXTERNAL_VREF;
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val /= PM10_EXTERNAL_VREF_CROSSVAL;
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/* Applied constant conversion from UAir project
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* to obtain value in ppm (value in mV * 0.28)
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*/
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val *= 28;
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val /= 1000;
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return val;
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/* Clear pulse wave pin */
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GPIO_CLR_PIN(PM10_SENSOR_PORT_BASE, PM10_SENSOR_PIN_MASK);
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return (uint16_t)val;
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}
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/*---------------------------------------------------------------------------*/
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SENSORS_SENSOR(pm10, PM10_SENSOR, value, configure, NULL);
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@ -51,6 +51,8 @@
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#define PM10_SUCCESS 0
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#define PM10_SENSOR "PM10 Sensor"
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#define PM10_SENSOR_PULSE_DELAY 280
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#define PM10_EXTERNAL_VREF 5000
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#define PM10_EXTERNAL_VREF_CROSSVAL 3300
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/* -------------------------------------------------------------------------- */
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#ifdef PM10_SENSOR_CONF_CTRL_PIN
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#define PM10_SENSOR_CTRL_PIN PM10_SENSOR_CONF_CTRL_PIN
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