int main( void )
{
uint8_t nSensors, i;
int16_t decicelsius;
uint8_t error;
uart_init((UART_BAUD_SELECT((BAUD),F_CPU)));
#ifndef OW_ONE_BUS
ow_set_bus(&PINA,&PORTA,&DDRA,PA6);
#endif
sei();
uart_puts_P( NEWLINESTR "DS18X20 1-Wire-Reader Demo by Martin Thomas" NEWLINESTR );
uart_puts_P( "-------------------------------------------" );
nSensors = search_sensors();
uart_put_int( (int)nSensors );
uart_puts_P( " DS18X20 Sensor(s) available:" NEWLINESTR );
#if DS18X20_VERBOSE
for (i = 0; i < nSensors; i++ ) {
uart_puts_P("# in Bus :");
uart_put_int( (int)i + 1);
uart_puts_P(" : ");
DS18X20_show_id_uart( &gSensorIDs[i][0], OW_ROMCODE_SIZE );
uart_puts_P( NEWLINESTR );
}
#endif
for ( i = 0; i < nSensors; i++ ) {
uart_puts_P( "Sensor# " );
uart_put_int( (int)i+1 );
uart_puts_P( " is a " );
if ( gSensorIDs[i][0] == DS18S20_FAMILY_CODE ) {
uart_puts_P( "DS18S20/DS1820" );
} else if ( gSensorIDs[i][0] == DS1822_FAMILY_CODE ) {
uart_puts_P( "DS1822" );
}
else {
uart_puts_P( "DS18B20" );
}
uart_puts_P( " which is " );
if ( DS18X20_get_power_status( &gSensorIDs[i][0] ) == DS18X20_POWER_PARASITE ) {
uart_puts_P( "parasite" );
} else {
uart_puts_P( "externally" );
}
uart_puts_P( " powered" NEWLINESTR );
}
#if DS18X20_EEPROMSUPPORT
if ( nSensors > 0 ) {
eeprom_test();
}
#endif
if ( nSensors == 1 ) {
uart_puts_P( NEWLINESTR "There is only one sensor "
"-> Demo of \"DS18X20_read_decicelsius_single\":" NEWLINESTR );
i = gSensorIDs[0][0]; // family-code for conversion-routine
DS18X20_start_meas( DS18X20_POWER_PARASITE, NULL );
_delay_ms( DS18B20_TCONV_12BIT );
DS18X20_read_decicelsius_single( i, &decicelsius );
uart_put_temp( decicelsius );
uart_puts_P( NEWLINESTR );
}
for(;;) { // main loop
error = 0;
if ( nSensors == 0 ) {
error++;
}
uart_puts_P( NEWLINESTR "Convert_T and Read Sensor by Sensor (reverse order)" NEWLINESTR );
for ( i = nSensors; i > 0; i-- ) {
if ( DS18X20_start_meas( DS18X20_POWER_PARASITE,
&gSensorIDs[i-1][0] ) == DS18X20_OK ) {
_delay_ms( DS18B20_TCONV_12BIT );
uart_puts_P( "Sensor# " );
uart_put_int( (int) i );
uart_puts_P(" = ");
if ( DS18X20_read_decicelsius( &gSensorIDs[i-1][0], &decicelsius)
== DS18X20_OK ) {
uart_put_temp( decicelsius );
} else {
uart_puts_P( "CRC Error (lost connection?)" );
error++;
}
uart_puts_P( NEWLINESTR );
}
else {
uart_puts_P( "Start meas. failed (short circuit?)" );
error++;
}
}
uart_puts_P( NEWLINESTR "Convert_T for all Sensors and Read Sensor by Sensor" NEWLINESTR );
if ( DS18X20_start_meas( DS18X20_POWER_PARASITE, NULL )
== DS18X20_OK) {
_delay_ms( DS18B20_TCONV_12BIT );
for ( i = 0; i < nSensors; i++ ) {
uart_puts_P( "Sensor# " );
uart_put_int( (int)i + 1 );
uart_puts_P(" = ");
if ( DS18X20_read_decicelsius( &gSensorIDs[i][0], &decicelsius )
== DS18X20_OK ) {
uart_put_temp( decicelsius );
}
else {
uart_puts_P( "CRC Error (lost connection?)" );
error++;
}
uart_puts_P( NEWLINESTR );
}
#if DS18X20_MAX_RESOLUTION
int32_t temp_eminus4;
for ( i = 0; i < nSensors; i++ ) {
uart_puts_P( "Sensor# " );
uart_put_int( i+1 );
uart_puts_P(" = ");
if ( DS18X20_read_maxres( &gSensorIDs[i][0], &temp_eminus4 )
== DS18X20_OK ) {
uart_put_temp_maxres( temp_eminus4 );
}
else {
uart_puts_P( "CRC Error (lost connection?)" );
error++;
}
uart_puts_P( NEWLINESTR );
}
#endif
}
else {
uart_puts_P( "Start meas. failed (short circuit?)" );
error++;
}
#if DS18X20_VERBOSE
// all devices:
uart_puts_P( NEWLINESTR "Verbose output" NEWLINESTR );
DS18X20_start_meas( DS18X20_POWER_PARASITE, NULL );
_delay_ms( DS18B20_TCONV_12BIT );
DS18X20_read_meas_all_verbose();
#endif
if ( error ) {
uart_puts_P( "*** problems - rescanning bus ..." );
nSensors = search_sensors();
uart_put_int( (int) nSensors );
uart_puts_P( " DS18X20 Sensor(s) available" NEWLINESTR );
error = 0;
}
_delay_ms(3000);
}
}
int main( void )
{
uint8_t i=0;
int16_t decicelsius;
uint8_t error;
uint8_t delayCounter=0;
hw_init();
uart_init((UART_BAUD_SELECT((BAUD),F_CPU)));
memset(&sensor_fw, 0, sizeof(_sensor_data));
/* init 485 write */
DDRB |= 0b0000001; //1 = output, 0 = input
//PORTB |= 0b00000001; //Enable pin 5 internal pullup
PORTB &= 0b11111110; //Enable pin 5 internal pullup read
//PORTB |= 0b00000001; //Enable pin 5 internal pullup 485 write
led_g_on();
_delay_ms(1000);
led_y_on();
_delay_ms(1000);
led_r_on();
_delay_ms(1000);
led_r_off();
_delay_ms(1000);
led_y_off();
_delay_ms(1000);
led_g_off();
#ifndef OW_ONE_BUS
ow_set_bus(&PIND,&PORTD,&DDRD,PD6);
#endif
led_g_on();
search_bus();
led_g_off();
sei();
sensor_fw.fw_state = FW_STATE_SENSOR_START_MEAS;
for(;;)
{ // main loop
switch (sensor_fw.fw_state)
{
case FW_STATE_SENSOR_SEARCH:
led_g_on();
search_bus();
led_g_off();
uart_puts_P("FW_STATE_SENSOR_SEARCH? =0\n");
sensor_fw.fw_state = FW_STATE_SENSOR_START_MEAS;
break;
case FW_STATE_SENSOR_START_MEAS:
if ( sensor_fw.sensor_num == 0 )
{
sensor_fw.fw_state = FW_STATE_SENSOR_SEARCH;
uart_puts_P("error sensor num =0\n");
break;
}
if ( DS18X20_start_meas( DS18X20_POWER_PARASITE, NULL ) == DS18X20_OK)
{
sensor_fw.fw_state = FW_STATE_SENSOR_DELAY_750ms;
//reset_timeout();
}
else
{
sensor_fw.fw_state = FW_STATE_SENSOR_SEARCH;
uart_puts_P("error start mes faul =0\n");
}
break;
case FW_STATE_SENSOR_DELAY_750ms:
//if (TCNT1 > 5400) //750 ms
_delay_ms( DS18B20_TCONV_12BIT );
{
sensor_fw.fw_state = FW_STATE_SENSOR_READ_I;
i = 0;
}
break;
case FW_STATE_SENSOR_READ_I:
if ( DS18X20_read_decicelsius(&sensor_fw.sensors[i].id[0], &decicelsius ) == DS18X20_OK )
{
sensor_fw.sensors[i].temp = decicelsius;
uart_puts_P( "Sensor# " );
uart_put_int( (int)i + 1 );
uart_puts_P(" = ");
uart_put_temp( decicelsius );
uart_puts_P( NEWLINESTR );
}
else
{
//uart_puts_P( "CRC Error (lost connection?)" );
sensor_fw.fw_state = FW_STATE_SENSOR_SEARCH;
uart_puts_P("error lost connection? =0\n");
break;
}
i++;
if (i >= sensor_fw.sensor_num)
{
sensor_fw.fw_state = FW_STATE_SENSOR_DELAY_5s;
delayCounter = 0;
//reset_timeout();
}
//uart_puts_P( NEWLINESTR );
break;
case FW_STATE_SENSOR_DELAY_5s:
//if (TCNT1 > (5 * TICKS_PER_SEC)) /*5s*/
_delay_ms( 1000 );
{
if(delayCounter > 5)
sensor_fw.fw_state = FW_STATE_SENSOR_START_MEAS;
delayCounter++;
}
break;
case FW_STATE_READ_COMM:
{
//uart_puts_P( "Communication cmd rx\n" );
switch(sensor_fw.comm.rxbuff[2])
{
case 0x01:
sensor_fw.comm.txbuff[0] = 0x7E;
sensor_fw.comm.txbuff[1] = 0x01; // dev_id
sensor_fw.comm.txbuff[2] = 0x02; // len
sensor_fw.comm.txbuff[3] = 0x00; // len
sensor_fw.comm.txbuff[4] = 0xBB; // data
sensor_fw.comm.txbuff[5] = 0xBB; // data
sensor_fw.comm.txbuff[6] = 0x00; // crc
sensor_fw.comm.txbuff[7] = 0x00; // crc
uart_putData(sensor_fw.comm.txbuff,8);
break;
}
sensor_fw.comm.rxlen = 0;
sensor_fw.comm.valid_cmd = 0;
sensor_fw.fw_state = FW_STATE_SENSOR_START_MEAS;
}
break;
}
if(sensor_fw.comm.valid_cmd)
{
sensor_fw.fw_state = FW_STATE_READ_COMM;
}
//_delay_ms(3000);
}
}
