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Add ADC example to cc26xx-web-demo

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This commit is contained in:
chenek 2017-02-13 09:37:34 +01:00 committed by George Oikonomou
parent 55f3a92211
commit 22b262ce73
5 changed files with 101 additions and 1 deletions
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71
examples/cc26xx/cc26xx-web-demo/cc26xx-web-demo.c
View file

@ -55,9 +55,13 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "ti-lib.h"
/*---------------------------------------------------------------------------*/
PROCESS_NAME(cetic_6lbr_client_process);
PROCESS(cc26xx_web_demo_process, "CC26XX Web Demo");
PROCESS(adc_process, "ADC process");
/*---------------------------------------------------------------------------*/
/*
* Update sensor readings in a staggered fashion every SENSOR_READING_PERIOD
@ -84,6 +88,9 @@ static struct uip_icmp6_echo_reply_notification echo_reply_notification;
static struct etimer echo_request_timer;
int def_rt_rssi = 0;
#endif
static uint16_t single_adc_sample;
/*---------------------------------------------------------------------------*/
process_event_t cc26xx_web_demo_publish_event;
process_event_t cc26xx_web_demo_config_loaded_event;
@ -110,6 +117,9 @@ DEMO_SENSOR(batmon_temp, CC26XX_WEB_DEMO_SENSOR_BATMON_TEMP,
DEMO_SENSOR(batmon_volt, CC26XX_WEB_DEMO_SENSOR_BATMON_VOLT,
"Battery Volt", "battery-volt", "batmon_volt",
CC26XX_WEB_DEMO_UNIT_VOLT);
DEMO_SENSOR(adc_dio23, CC26XX_WEB_DEMO_SENSOR_ADC_DIO23,
"ADC DIO23", "adc-dio23", "adc_dio23",
CC26XX_WEB_DEMO_UNIT_VOLT);
/* Sensortag sensors */
#if BOARD_SENSORTAG
@ -467,6 +477,20 @@ get_batmon_reading(void *data)
ctimer_set(&batmon_timer, next, get_batmon_reading, NULL);
}
/*---------------------------------------------------------------------------*/
static void
get_adc_reading(void *data)
{
int value;
char *buf;
if(adc_dio23_reading.publish) {
value = single_adc_sample;
buf = adc_dio23_reading.converted;
memset(buf, 0, CC26XX_WEB_DEMO_CONVERTED_LEN);
snprintf(buf, CC26XX_WEB_DEMO_CONVERTED_LEN, "%d", (value * 4300) >> 12);
}
}
/*---------------------------------------------------------------------------*/
#if BOARD_SENSORTAG
/*---------------------------------------------------------------------------*/
static void
@ -825,6 +849,7 @@ init_sensors(void)
list_add(sensor_list, &batmon_temp_reading);
list_add(sensor_list, &batmon_volt_reading);
list_add(sensor_list, &adc_dio23_reading);
SENSORS_ACTIVATE(batmon_sensor);
#if BOARD_SENSORTAG
@ -864,6 +889,7 @@ PROCESS_THREAD(cc26xx_web_demo_process, ev, data)
/* Start all other (enabled) processes first */
process_start(&httpd_simple_process, NULL);
#if CC26XX_WEB_DEMO_COAP_SERVER
process_start(&coap_server_process, NULL);
#endif
@ -880,6 +906,10 @@ PROCESS_THREAD(cc26xx_web_demo_process, ev, data)
process_start(&net_uart_process, NULL);
#endif
#if CC26XX_WEB_DEMO_ADC_DEMO
process_start(&adc_process, NULL);
#endif
/*
* Now that processes have set their own config default values, set our
* own defaults and restore saved config from flash...
@ -966,6 +996,47 @@ PROCESS_THREAD(cc26xx_web_demo_process, ev, data)
PROCESS_END();
}
PROCESS_THREAD(adc_process, ev, data)
{
PROCESS_BEGIN();
static struct etimer et_adc;
etimer_set(&et_adc, CLOCK_SECOND * 5);
while(1) {
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et_adc));
/* intialisation of ADC */
ti_lib_aon_wuc_aux_wakeup_event(AONWUC_AUX_WAKEUP);
while(!(ti_lib_aon_wuc_power_status_get() & AONWUC_AUX_POWER_ON)) {
}
/* Enable clock for ADC digital and analog interface (not currently enabled in driver) */
/* Enable clocks */
ti_lib_aux_wuc_clock_enable(AUX_WUC_ADI_CLOCK | AUX_WUC_ANAIF_CLOCK | AUX_WUC_SMPH_CLOCK);
while(ti_lib_aux_wuc_clock_status(AUX_WUC_ADI_CLOCK | AUX_WUC_ANAIF_CLOCK | AUX_WUC_SMPH_CLOCK) != AUX_WUC_CLOCK_READY) {
}
/* Connect AUX IO7 (DIO23, but also DP2 on XDS110) as analog input. */
ti_lib_aux_adc_select_input(ADC_COMPB_IN_AUXIO7);
/* Set up ADC range */
/* AUXADC_REF_FIXED = nominally 4.3 V */
ti_lib_aux_adc_enable_sync(AUXADC_REF_FIXED, AUXADC_SAMPLE_TIME_2P7_US, AUXADC_TRIGGER_MANUAL);
/* Trigger ADC converting */
ti_lib_aux_adc_gen_manual_trigger();
/* reading adc value */
single_adc_sample = ti_lib_aux_adc_read_fifo();
/* shut the adc down */
ti_lib_aux_adc_disable();
get_adc_reading(NULL);
etimer_reset(&et_adc);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
/**
* @}

8
examples/cc26xx/cc26xx-web-demo/cc26xx-web-demo.h
View file

@ -79,6 +79,13 @@
#else
#define CC26XX_WEB_DEMO_NET_UART 1
#endif
#ifdef CC26XX_WEB_DEMO_CONF_ADC_DEMO
#define CC26XX_WEB_DEMO_ADC_DEMO CC26XX_WEB_DEMO_CONF_ADC_DEMO
#else
#define CC26XX_WEB_DEMO_ADC_DEMO 0
#endif
/*---------------------------------------------------------------------------*/
/* Active probing of RSSI from our preferred parent */
#if (CC26XX_WEB_DEMO_COAP_SERVER || CC26XX_WEB_DEMO_MQTT_CLIENT)
@ -146,6 +153,7 @@
#define CC26XX_WEB_DEMO_SENSOR_MPU_GYRO_X 12
#define CC26XX_WEB_DEMO_SENSOR_MPU_GYRO_Y 13
#define CC26XX_WEB_DEMO_SENSOR_MPU_GYRO_Z 14
#define CC26XX_WEB_DEMO_SENSOR_ADC_DIO23 15
/*---------------------------------------------------------------------------*/
extern process_event_t cc26xx_web_demo_publish_event;
extern process_event_t cc26xx_web_demo_config_loaded_event;

2
examples/cc26xx/cc26xx-web-demo/coap-server.c
View file

@ -50,6 +50,7 @@ extern resource_t res_leds;
extern resource_t res_batmon_temp;
extern resource_t res_batmon_volt;
extern resource_t res_adc_dio23;
extern resource_t res_device_sw;
extern resource_t res_device_hw;
@ -133,6 +134,7 @@ PROCESS_THREAD(coap_server_process, ev, data)
rest_activate_resource(&res_batmon_temp, "sen/batmon/temp");
rest_activate_resource(&res_batmon_volt, "sen/batmon/voltage");
rest_activate_resource(&res_adc_dio23, "sen/adc/dio23");
rest_activate_resource(&res_device_hw, "dev/mdl/hw");
rest_activate_resource(&res_device_sw, "dev/mdl/sw");

7
examples/cc26xx/cc26xx-web-demo/project-conf.h
View file

@ -41,6 +41,13 @@
#define CC26XX_WEB_DEMO_CONF_6LBR_CLIENT 1
#define CC26XX_WEB_DEMO_CONF_COAP_SERVER 1
#define CC26XX_WEB_DEMO_CONF_NET_UART 1
/*
* ADC sensor functionality. To test this, an external voltage source should be
* connected to DIO23
* Enable/Disable DIO23 ADC reading by setting CC26XX_WEB_DEMO_CONF_ADC_DEMO
*/
#define CC26XX_WEB_DEMO_CONF_ADC_DEMO 0
/*---------------------------------------------------------------------------*/
/* Enable the ROM bootloader */
#define ROM_BOOTLOADER_ENABLE 1

12
examples/cc26xx/cc26xx-web-demo/resources/res-sensors.c
View file

@ -111,12 +111,24 @@ res_get_handler_batmon_volt(void *request, void *response, uint8_t *buffer,
buffer, preferred_size, offset);
}
/*---------------------------------------------------------------------------*/
static void
res_get_handler_adc_dio23(void *request, void *response, uint8_t *buffer,
uint16_t preferred_size, int32_t *offset)
{
res_get_handler_all(CC26XX_WEB_DEMO_SENSOR_ADC_DIO23, request, response,
buffer, preferred_size, offset);
}
/*---------------------------------------------------------------------------*/
RESOURCE(res_batmon_temp, "title=\"Battery Temp\";rt=\"C\"",
res_get_handler_batmon_temp, NULL, NULL, NULL);
/*---------------------------------------------------------------------------*/
RESOURCE(res_batmon_volt, "title=\"Battery Voltage\";rt=\"mV\"",
res_get_handler_batmon_volt, NULL, NULL, NULL);
/*---------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/
RESOURCE(res_adc_dio23, "title=\"ADC DIO23\";rt=\"mV\"",
res_get_handler_adc_dio23, NULL, NULL, NULL);
/*---------------------------------------------------------------------------*/
#if BOARD_SENSORTAG
/*---------------------------------------------------------------------------*/
/* MPU resources and handler: Accelerometer and Gyro */