RTOS/TMP116: RTOS/TMP

Hello and thank you for your reply,

I used the example provided by texas instrument Sail Library, my code contains threads. my question to what threads is the cause of power consumption.

Here is my code:

----------------------------------------Main---------------------------------------------------------------------------------------------------------------------------------
* POSIX Header files */
#include <pthread.h>
#include <stdlib.h>
#include <xdc/std.h>
#include <xdc/runtime/System.h>
#include <xdc/runtime/Error.h>
#include <stdint.h>
#include <stddef.h>
#include <unistd.h>
#include <semaphore.h>

/* BIOS Header files */
#include <ti/drivers/rf/RF.h>
#include <ti/sysbios/BIOS.h>
#include <ti/sysbios/knl/Task.h>
#include <ti/sysbios/knl/Clock.h>
#include <ti/drivers/GPIO.h>
#include <ti/drivers/I2C.h>

/* TI-RTOS Header files */
#include <ti/drivers/PIN.h>
#include <ti/drivers/Power.h>

#include <ti/devices/cc13x0/driverlib/aon_batmon.h>
#include <ti/devices/cc13x0/driverlib/aux_adc.h>
#include <ti/devices/cc13x0/driverlib/chipinfo.h>
#include <ti/devices/cc13x0/driverlib/sys_ctrl.h>
#include <semaphore.h>
#include <ti/sail/tmp116/tmp116.h>

/* Board Header files */
#include "Board.h"

/* EasyLink API Header files */
#include "easylink/EasyLink.h"



#include "version.h"
#include "../sonde_gw_fw/sys_intf.h"

#include <string.h>
#include <math.h>

#define RFEASYLINKTX_TASK_STACK_SIZE 1024
#define RFEASYLINKTX_TASK_PRIORITY 2

#define RFEASYLINKTX_BURST_SIZE 1
#define THREADSTACKSIZE 768

#define SAMPLE_TIME 1 /*In seconds*/
#define TMP_TASK_STACK_SIZE 768

TMP116_Handle tmp116Handle = NULL;
I2C_Handle i2cHandle = NULL;
sem_t tmp116Sem;

uint8_t SavedBattery;


/* Global sample rate which may be accessed and set from GUI Composer App */
volatile uint16_t sampleTime;

/*
* ======== tmp116Callback ========
* When an ALERTing condition is met on the TMP116 hardware, the ALERT pin
* is asserted generating an interrupt. This callback function serves as
* an ISR for a single TMP116 sensor.
*/
void tmp116Callback(uint_least8_t index)
{
sem_post(&tmp116Sem);
}

/*
* ======== tmp116AlertTask ========
* This task is unblocked when the ALERT pin is asserted and generates an
* interrupt. When the TMP116 is in INTERRUPT mode, the status register must
* be read to clear the ALERT pin.
*/

void *tmp116AlertTask(void *arg0)
{
uint16_t data;

while(1) {

/* Pend on semaphore, tmp116Sem */
if (0 == sem_wait(&tmp116Sem)) {

/* Reads status register, resetting the ALERT pin */
TMP116_readStatus(tmp116Handle, &data);

/* Check Object Temperature High Flag */
if (data & TMP116_STAT_ALR_HI) {
}

/* Check Object Temperature Low Flag */
if (data & TMP116_STAT_ALR_LO) {
}

}
}
}

Task_Struct txTask; /* not static so you can see in ROV */
static Task_Params txTaskParams;
static uint8_t txTaskStack[RFEASYLINKTX_TASK_STACK_SIZE];

Task_Struct sensorTask; /* not static so you can see in ROV */
static Task_Params sensorTaskParams;
static uint8_t sensorTaskStack[RFEASYLINKTX_TASK_STACK_SIZE];

typedef struct {
uint8_t reason;
int8_t temp_deg_frac_8;
uint8_t temp_deg_frac_8_vir;
uint8_t bat_20mV;
} opto_sonde_data_t;

typedef struct {
int8_t temp_MSB;
uint8_t temp_LSB;
}data_t;

void sleepAndReset(uint32_t sleep_time_secs) {

uint32_t secs = sleep_time_secs;
while (secs > 0)
{
uint32_t sleep_s = secs > 2000 ? 2000 : secs;
Task_sleep((sleep_s * 1000u * 1000) / Clock_tickPeriod);
secs -= sleep_s;
}

SysCtrlSystemReset();
}

static void rfEasyLinkTxFnx(UArg arg0, UArg arg1)
{

opto_sonde_data_t* optosonde_data = (opto_sonde_data_t*) arg0;

EasyLink_init(EasyLink_Phy_Custom);

/*
* If you wish to use a frequency other than the default, use
* the following API:
* EasyLink_setFrequency(868000000);
*/

/* Set output power to 12dBm */
// EasyLink_setRfPwr(12);
EasyLink_setRfPwr(10);

EasyLink_TxPacket txPacket;

// Fill packet data
uint8_t payload_ptr = 0;
// Payload version
txPacket.payload[payload_ptr++] = (uint8_t) (0x0);
// Src MAC
EasyLink_getIeeeAddr(&txPacket.payload[payload_ptr]);
payload_ptr += 8;

// Copy data
txPacket.payload[payload_ptr++] = (uint8_t) (optosonde_data->reason);
txPacket.payload[payload_ptr++] = (uint8_t) (optosonde_data->temp_deg_frac_8 );
txPacket.payload[payload_ptr++] = (uint8_t) (optosonde_data->temp_deg_frac_8_vir);
txPacket.payload[payload_ptr++] = (uint8_t) (optosonde_data->bat_20mV);
// Firmware version
memcpy(&txPacket.payload[payload_ptr], &VERSION_HASH, sizeof(VERSION_HASH));
payload_ptr += sizeof(VERSION_HASH);

txPacket.len = payload_ptr;
txPacket.absTime = 0;
txPacket.dstAddr[0] = OPTOSONDE_ADDR;

EasyLink_Status result = EasyLink_transmit(&txPacket);

if (result == EasyLink_Status_Success)
{
/* Toggle LED1 to indicate TX */
// PIN_setOutputValue(pinHandle, Board_PIN_LED1,!PIN_getOutputValue(Board_PIN_LED1));
}
else
{
/* Toggle LED1 and LED2 to indicate error */
// PIN_setOutputValue(pinHandle, Board_PIN_LED1,!PIN_getOutputValue(Board_PIN_LED1));
// PIN_setOutputValue(pinHandle, Board_PIN_LED2,!PIN_getOutputValue(Board_PIN_LED2));
}

Task_sleep(5);
}

void sendorTask_AlertCB(UArg arg0, UArg arg1)
{
static opto_sonde_data_t optosonde_data;
optosonde_data.reason = optosonde_reason_periodic;
data_t* temptread =(data_t* )arg0;

optosonde_data.temp_deg_frac_8 = (temptread->temp_MSB);
optosonde_data.temp_deg_frac_8_vir = (temptread->temp_LSB);
if (!AONBatMonNewBatteryMeasureReady())
{
// Wait
optosonde_data.bat_20mV =SavedBattery;
}
else{
SavedBattery = (AONBatMonBatteryVoltageGet() * 390625) / 2000000;
optosonde_data.bat_20mV = SavedBattery;
AONBatMonDisable();

}

// Init Tx task
Task_Params_init(&txTaskParams);
txTaskParams.stackSize = RFEASYLINKTX_TASK_STACK_SIZE;
txTaskParams.priority = RFEASYLINKTX_TASK_PRIORITY + 1;
txTaskParams.stack = &txTaskStack;
txTaskParams.arg0 = (xdc_UArg) &optosonde_data;

Task_construct(&txTask, rfEasyLinkTxFnx, &txTaskParams, NULL);

}


/*
* ======== mainThread ========
*/
void *mainThread(void *argc)
{

static data_t temptread;
int8_t MSB;
uint8_t LSB;
float tempToread;
I2C_Handle i2cHandle;
I2C_Params i2cParams;
int retc;
pthread_t alertTask;
pthread_attr_t pAttrs;
sampleTime = SAMPLE_TIME;
TMP116_Params tmp116Params;

/* Call driver init functions */
//GPIO_init();
I2C_init();
TMP116_init();


/* Create I2C for usage */
I2C_Params_init(&i2cParams);

i2cParams.bitRate = I2C_400kHz;

i2cHandle = I2C_open(Board_I2C_TMP, &i2cParams);
if (i2cHandle == NULL) {
while (1);
}
else {
}

if(0 != sem_init(&tmp116Sem,0,0))
{
/* sem_init() failed */
while (1);
}

pthread_attr_init(&pAttrs);
pthread_attr_setstacksize(&pAttrs, TMP_TASK_STACK_SIZE);
retc = pthread_create(&alertTask, &pAttrs, tmp116AlertTask, NULL);
if (retc != 0) {
/* pthread_create() failed */
while (1);
}

/* Initialize tmp116Params structure to defaults */
TMP116_Params_init(&tmp116Params);

/* Callback for ALERT event */
tmp116Params.callback = &tmp116Callback;

/* Open TMP116 sensor with custom Params */
tmp116Handle = TMP116_open(Board_TMP007_ROOMTEMP, i2cHandle, &tmp116Params);

/* Check if the open is successful */
if (tmp116Handle == NULL) {
while(1);
}

/* Allow the sensor hardware to complete its first conversion */
sleep(2);


/* Get Die Temperature in Celsius */
if (!TMP116_getTemp(tmp116Handle, TMP116_CELSIUS,&tempToread)) {

}

/* Begin infinite task loop */
while (1) {

TMP116_getTemp(tmp116Handle, TMP116_CELSIUS, &tempToread);
/* Get Die and Object Temperatures */
MSB = (int8_t )tempToread;
LSB = (uint8_t )((tempToread-MSB) * 100);
temptread.temp_MSB=MSB;
temptread.temp_LSB=LSB;

// Sensor task
Task_Params_init(&sensorTaskParams);
sensorTaskParams.stackSize = RFEASYLINKTX_TASK_STACK_SIZE;
sensorTaskParams.priority = RFEASYLINKTX_TASK_PRIORITY;
sensorTaskParams.stack = &sensorTaskStack;
sensorTaskParams.arg0 = (xdc_UArg) &temptread;

Task_construct(&sensorTask, sendorTask_AlertCB, &sensorTaskParams, NULL);

// Tell RTC to sleep
#ifdef OPTOSONDE_DEMO_MODE
uint32_t sleep_time_s = 30;
#elif OPTOSONDE_VITICODE
uint32_t sleep_time_s = 10 * 60;
#else
uint32_t sleep_time_s = 1 *60;
#endif

sleepAndReset(sleep_time_s);

}
}

/*
* ======== main ========
*/

void maini2c(void)
{
pthread_t thread;
pthread_attr_t pAttrs;
struct sched_param priParam;
int retc;
int detachState;

/* Set priority and stack size attributes */
pthread_attr_init(&pAttrs);
priParam.sched_priority = 1;

detachState = PTHREAD_CREATE_DETACHED;
retc = pthread_attr_setdetachstate(&pAttrs, detachState);
if (retc != 0) {
// /* pthread_attr_setdetachstate() failed */
while (1);
}

pthread_attr_setschedparam(&pAttrs, &priParam);

retc |= pthread_attr_setstacksize(&pAttrs, THREADSTACKSIZE);
if (retc != 0) {
/* pthread_attr_setstacksize() failed */
while (1);
}

retc = pthread_create(&thread, &pAttrs, mainThread, NULL);
if (retc != 0) {
/* pthread_create() failed */
while (1);
}

/* destroy pthread attribute */
pthread_attr_destroy(&pAttrs);
}


int opto_main(void)
{

/* Call driver init functions. */
maini2c();
Board_initGeneral();

/* Start BIOS */
BIOS_start();

return (0);
}

Hello and thank you for the reply,
Just a quick question on the example used for the TMP 116 sensor (sail library), which conversion mode is used? and how ?

Hello and thank you very much for this explanation,
Can I write my code without the threads for reading the temperature? Why are threads on the example given by the library "sail"?