/*****************************************************************************
* Method: oneWireTask
* Description: This method runs the oneWire task
****************************************************************************/
void oneWire::oneWireTask (void)
{
static uint8_t runs = 0;
uint8_t low_byte, high_byte;
int16_t temp;
int32_t temp_f;
//if ((runs % 5) == 0)
//{
//DBG(this->p_serial, "\r\noneWire Task Running on device: %d\r\n", dev_id);
// perform temperature conversion
reset();
write_byte(0xCC); // skip ROM
write_byte(0x44); // single temp conversion
// read in scratch pad
reset();
write_byte(0xCC); // skip ROM
write_byte(0xBE); // read scratchpad
// read temperature
low_byte = read_byte();
high_byte = read_byte();
temp = (high_byte << BYTE_SHIFT) | low_byte;
temp = convert_temp(temp);
temp_f = TEMP_C_TO_F((int32_t)temp);
// update global value
if (dev_id == ID_SURFACE_TEMP)
{
surf_temp = temp_f;
}
else if (dev_id == ID_UNDERWATER_TEMP)
{
sub_temp = temp_f;
}
//DBG(this->p_serial, "Temp sensor %d: %d.%02dC or %ld.%02ldF\r\n",
// dev_id,
// (temp / 100), (temp % 100),
// (temp_f / 100), (temp_f % 100));
//}
runs++;
}
void task_i2c_get_temp_func(const struct task_item *task)
{
uint8_t temp[2];
int t_out, fract;
/*
* Wait in OS friendly way for request to run.
*/
if (!read_temp_enabled) {
OS_EVENT_WAIT(event, OS_EVENT_FOREVER);
}
/*
* Require I2C for exclusively reading temperature from FM75 and release it after operation.
*/
resource_acquire(RES_MASK(RES_ID_I2C1), RES_WAIT_FOREVER);
set_target_address(FM75_ADDRESS);
/*
* Read actual temperature values from FM75.
*/
fm75_read_reg(FM75_REG_TEMP, temp, sizeof(temp));
resource_release(RES_MASK(RES_ID_I2C1));
/*
* Send results to UART.
*/
t_out = convert_temp(temp, &fract);
printf("current temperature: %d.%04d C" NEWLINE, t_out, fract);
/*
* Wait 1 second to get temperature again.
*/
OS_DELAY(1000);
}
void send()
{
wildfire_packet_t * wp;
net_packet_t * np;
uint16_t sample;
uint8_t sends;
sends = 0;
init_devs();
mos_thread_set_suspend_state(SUSPEND_STATE_SLEEP); //sets power save mode
//just wait while in init state
while (state != GO)
{
mos_mdelay(500);
}
while (1)
{
if (state == SLEEPNODE)
{
disable_wind_speed(); //must disable the ext interrupts for power save sleep
//mos_thread_set_suspend_state(SUSPEND_STATE_SLEEP); //sets power save mode
mos_thread_sleep(SLEEP_INTERVAL - 1000); //extra 1000 to make sure it wakes up early
//mos_thread_set_suspend_state(SUSPEND_STATE_IDLE); //idle mode
while (state != GO) //awake, but not ready yet.. so just wait
mos_mdelay(250);
sends = 0;
}
//first populate the buffer with the net packet since this will
//always be the header
np = (net_packet_t *)&(sendBuf.data[0]);
np->type = DATA;
np->src = myID;
np->dest = baseID;
np->next_hop = myParentID;
np->last_hop = myID;
np->seqno = mySeqNo;
np->pkt_dtb = myDTB;
np->sender_dtb = myDTB;
sendBuf.size = sizeof(net_packet_t);
//for data packets, we now populate the buffer with the
//wildfire packet information. Adding it to the end.
wp = (wildfire_packet_t *)&(sendBuf.data[sendBuf.size]);
//temp
dev_open(DEV_MICA2_TEMP);
dev_read(DEV_MICA2_TEMP, &sample, sizeof(sample));
dev_close(DEV_MICA2_TEMP);
wp->temp = convert_temp(sample);
//battery
dev_open(DEV_MICA2_BATTERY);
dev_read(DEV_MICA2_BATTERY, &sample, sizeof(sample));
dev_close(DEV_MICA2_BATTERY);
wp->battery = sample;
//humidity
humidity_on();
mos_mdelay(200); //settling time
dev_open(DEV_ADC);
dev_ioctl(DEV_ADC, ADC_SET_CHANNEL, AVR_ADC_CH_2);
dev_read(DEV_ADC, &sample, sizeof(sample));
dev_close(DEV_ADC);
humidity_off();
wp->humidity = convert_humidity(sample, wp->battery);
//wind direction
wind_dir_on();
dev_open(DEV_ADC);
dev_ioctl(DEV_ADC, ADC_SET_CHANNEL, AVR_ADC_CH_1);
dev_read(DEV_ADC, &sample, sizeof(sample));
dev_close(DEV_ADC);
wind_dir_off();
wp->wind_direction = convert_direction(sample);
//wind speed
wp->wind_speed = wind_speed;
sendBuf.size += sizeof(wildfire_packet_t);
//debug info:
/* printf("type\tsrc\tdest\tnext\tlast\tseq\tpktdtb\ts_dtb\n");
printf("%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n", np->type, np->src, np->dest, np->next_hop, np->last_hop, np->seqno, np->pkt_dtb, np->sender_dtb);
printf("temp\thmdty\tw_dir\tw_spd\tbat\n");
printf("%d\t%d\t%d\t%d\t%d\n", wp->temp, wp->humidity, wp->wind_direction, wp->wind_speed, wp->battery);
*/
if (rate == 0 || sends < rate*myDTB)
{
com_send(IFACE_RADIO, &sendBuf);
mySeqNo++;
sends++;
}
if (mySeqNo > 254)
mySeqNo = 0;
mos_mdelay(1000);
}
}