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Diffstat (limited to 'usb-1wire/usb-1wire.c')
-rw-r--r--usb-1wire/usb-1wire.c336
1 files changed, 168 insertions, 168 deletions
diff --git a/usb-1wire/usb-1wire.c b/usb-1wire/usb-1wire.c
index a94067c..9a044f0 100644
--- a/usb-1wire/usb-1wire.c
+++ b/usb-1wire/usb-1wire.c
@@ -1,168 +1,168 @@
-/*
- * spreadspace avr utils - usb-1wire example
- *
- *
- * Copyright (C) 2013-2014 Bernhard Tittelbach <xro@realraum.at>
- * basically this is refactored and enhanced code from:
- * http://www.pjrc.com/teensy/td_libs_OneWire.html
- *
- * This file is part of spreadspace avr utils.
- *
- * spreadspace avr utils is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * any later version.
- *
- * spreadspace avr utils is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
- */
-
-
-#include <avr/io.h>
-#include <avr/wdt.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-#include <stdio.h>
-
-#include "util.h"
-#include "led.h"
-#include "usbio.h"
-
-#define MAX_OWI_DEVICES 8
-
-#include "onewire.h"
-#include "ds1820.h"
-
-
-uint8_t owi_addr_[MAX_OWI_DEVICES][8];
-uint8_t num_owi_dev_found_ = 0;
-uint8_t num_temp_sensors_ = 0;
-
-void discoverOWIBus(void)
-{
- uint8_t d=0;
- led_on();
-
- printf("Searching 1W Bus ");
- num_owi_dev_found_ = 0;
- if (owi_reset())
- printf(" !something is there! ");
- owi_reset_search();
- _delay_ms(250);
-
- while ( owi_search(owi_addr_[ d ]))
- {
- d++;
- printf("%d. found, ", d);
- led_toggle();
- if ( d >= MAX_OWI_DEVICES)
- break;
- }
- num_owi_dev_found_ = d;
- printf(" done \r\n");
- printf("%d devices found\r\n", d);
-
- for (d=0; d<num_owi_dev_found_; d++)
- {
- printf("OW Dev #%d: addr = ", d);
- for (uint8_t a=0; a<8; a++)
- printf("%02x ", owi_addr_[d][a]);
- if (owi_crc8(owi_addr_[d], 7) == owi_addr_[d][7])
- printf(" CRC OK");
- else
- printf(" CRC ERROR");
- printf("\r\n");
- }
- led_off();
-}
-
-void tempToUSB(uint8_t bit_resolution)
-{
- uint8_t sensor_index = 0;
- uint16_t raw_temp = 0;
- double temp=0.0;
-
- led_on();
-
- if (num_temp_sensors_ == 0)
- {
- printf("No DS1820 sensors ?? running bus discovery... \r\n");
- num_temp_sensors_ = ds1820_discover();
- }
- printf("%d DS18x20 sensors on the bus\r\n", num_temp_sensors_);
-
- for (sensor_index=0; sensor_index < num_temp_sensors_; sensor_index++)
- {
- ds1820_set_resolution(sensor_index, bit_resolution);
- ds1820_start_measuring(sensor_index);
- }
-
- ds1820_wait_conversion_time(bit_resolution);
-
- for (sensor_index=0; sensor_index < num_temp_sensors_; sensor_index++)
- {
- raw_temp = ds1820_read_temperature(sensor_index);
- printf("DS1820 #%d: ", sensor_index);
- if (raw_temp == DS1820_ERROR)
- {
- printf("CRC comm error\r\n");
- } else {
- temp = ds1820_raw_temp_to_celsius( raw_temp );
- printf("raw: %d, celsius (float): %f, celsius (int): %d.%02d, %d bit resolution\r\n",
- raw_temp,
- temp ,
- raw_temp / 16, (raw_temp <0 ? -1 : 1) * 100 * (raw_temp % 16) / 16,
- bit_resolution
- );
- }
- }
- led_off();
-}
-
-
-void handle_cmd(uint8_t cmd)
-{
- switch(cmd) {
- case '0': discoverOWIBus(); break;
- case '1': num_temp_sensors_ = ds1820_discover(); break;
- case '2': tempToUSB(9); break;
- case '3': tempToUSB(10); break;
- case '4': tempToUSB(11); break;
- case '5': tempToUSB(12); break;
- case 'r': reset2bootloader(); break;
- default: printf("error\r\n"); return;
- }
- printf("ok\r\n");
-}
-
-int main(void)
-{
- MCUSR &= ~(1 << WDRF);
- wdt_disable();
-
- cpu_init();
- led_init();
- usbio_init();
- sei();
- owi_init(7, &PINC);
-
- for(;;)
- {
- int16_t BytesReceived = usbio_bytes_received();
- while(BytesReceived > 0)
- {
- int ReceivedByte = fgetc(stdin);
- if(ReceivedByte != EOF) {
- handle_cmd(ReceivedByte);
- }
- BytesReceived--;
- }
-
- usbio_task();
- }
-}
+/*
+ * spreadspace avr utils - usb-1wire example
+ *
+ *
+ * Copyright (C) 2013-2014 Bernhard Tittelbach <xro@realraum.at>
+ * basically this is refactored and enhanced code from:
+ * http://www.pjrc.com/teensy/td_libs_OneWire.html
+ *
+ * This file is part of spreadspace avr utils.
+ *
+ * spreadspace avr utils is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * spreadspace avr utils is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <stdio.h>
+
+#include "util.h"
+#include "led.h"
+#include "usbio.h"
+
+#define MAX_OWI_DEVICES 8
+
+#include "onewire.h"
+#include "ds1820.h"
+
+
+uint8_t owi_addr_[MAX_OWI_DEVICES][8];
+uint8_t num_owi_dev_found_ = 0;
+uint8_t num_temp_sensors_ = 0;
+
+void discoverOWIBus(void)
+{
+ uint8_t d=0;
+ led_on();
+
+ printf("Searching 1W Bus ");
+ num_owi_dev_found_ = 0;
+ if (owi_reset())
+ printf(" !something is there! ");
+ owi_reset_search();
+ _delay_ms(250);
+
+ while ( owi_search(owi_addr_[ d ]))
+ {
+ d++;
+ printf("%d. found, ", d);
+ led_toggle();
+ if ( d >= MAX_OWI_DEVICES)
+ break;
+ }
+ num_owi_dev_found_ = d;
+ printf(" done \r\n");
+ printf("%d devices found\r\n", d);
+
+ for (d=0; d<num_owi_dev_found_; d++)
+ {
+ printf("OW Dev #%d: addr = ", d);
+ for (uint8_t a=0; a<8; a++)
+ printf("%02x ", owi_addr_[d][a]);
+ if (owi_crc8(owi_addr_[d], 7) == owi_addr_[d][7])
+ printf(" CRC OK");
+ else
+ printf(" CRC ERROR");
+ printf("\r\n");
+ }
+ led_off();
+}
+
+void tempToUSB(uint8_t bit_resolution)
+{
+ uint8_t sensor_index = 0;
+ uint16_t raw_temp = 0;
+ double temp=0.0;
+
+ led_on();
+
+ if (num_temp_sensors_ == 0)
+ {
+ printf("No DS1820 sensors ?? running bus discovery... \r\n");
+ num_temp_sensors_ = ds1820_discover();
+ }
+ printf("%d DS18x20 sensors on the bus\r\n", num_temp_sensors_);
+
+ for (sensor_index=0; sensor_index < num_temp_sensors_; sensor_index++)
+ {
+ ds1820_set_resolution(sensor_index, bit_resolution);
+ ds1820_start_measuring(sensor_index);
+ }
+
+ ds1820_wait_conversion_time(bit_resolution);
+
+ for (sensor_index=0; sensor_index < num_temp_sensors_; sensor_index++)
+ {
+ raw_temp = ds1820_read_temperature(sensor_index);
+ printf("DS1820 #%d: ", sensor_index);
+ if (raw_temp == DS1820_ERROR)
+ {
+ printf("CRC comm error\r\n");
+ } else {
+ temp = ds1820_raw_temp_to_celsius( raw_temp );
+ printf("raw: %d, celsius (float): %f, celsius (int): %d.%02d, %d bit resolution\r\n",
+ raw_temp,
+ temp ,
+ raw_temp / 16, (raw_temp <0 ? -1 : 1) * 100 * (raw_temp % 16) / 16,
+ bit_resolution
+ );
+ }
+ }
+ led_off();
+}
+
+
+void handle_cmd(uint8_t cmd)
+{
+ switch(cmd) {
+ case '0': discoverOWIBus(); break;
+ case '1': num_temp_sensors_ = ds1820_discover(); break;
+ case '2': tempToUSB(9); break;
+ case '3': tempToUSB(10); break;
+ case '4': tempToUSB(11); break;
+ case '5': tempToUSB(12); break;
+ case 'r': reset2bootloader(); break;
+ default: printf("error\r\n"); return;
+ }
+ printf("ok\r\n");
+}
+
+int main(void)
+{
+ MCUSR &= ~(1 << WDRF);
+ wdt_disable();
+
+ cpu_init();
+ led_init();
+ usbio_init();
+ sei();
+ owi_init(7, &PINC);
+
+ for(;;)
+ {
+ int16_t BytesReceived = usbio_bytes_received();
+ while(BytesReceived > 0)
+ {
+ int ReceivedByte = fgetc(stdin);
+ if(ReceivedByte != EOF) {
+ handle_cmd(ReceivedByte);
+ }
+ BytesReceived--;
+ }
+
+ usbio_task();
+ }
+}
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