diff options
| author | Bernhard Tittelbach <xro@realraum.at> | 2013-02-17 02:05:14 +0000 |
|---|---|---|
| committer | Bernhard Tittelbach <xro@realraum.at> | 2013-02-17 02:05:14 +0000 |
| commit | e603ca4a223ee2a1eeacf7d0d5b9375e05065df0 (patch) | |
| tree | b6954bfd11e25edb93d32588bca21f2eb9cf48e2 /usb-adc-dustsensor | |
| parent | improved anyio and usbio (diff) | |
usb-adc example for sharp dustsensor
git-svn-id: https://svn.spreadspace.org/avr/trunk@200 aa12f405-d877-488e-9caf-2d797e2a1cc7
Diffstat (limited to 'usb-adc-dustsensor')
| -rw-r--r-- | usb-adc-dustsensor/Makefile | 44 | ||||
| -rw-r--r-- | usb-adc-dustsensor/usb-adc-dustsensor.c | 116 |
2 files changed, 160 insertions, 0 deletions
diff --git a/usb-adc-dustsensor/Makefile b/usb-adc-dustsensor/Makefile new file mode 100644 index 0000000..5c49709 --- /dev/null +++ b/usb-adc-dustsensor/Makefile @@ -0,0 +1,44 @@ +##
+## spreadspace avr utils
+##
+##
+## Copyright (C) 2013 Christian Pointner <equinox@spreadspace.org>
+##
+## 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/>.
+##
+
+NAME := usb-adc-dustsensor
+BOARD_TYPE := teensy2
+OBJ := $(NAME).o
+LIBS := util led lufa-descriptor-usbserial usbio
+EXTERNAL_LIBS := lufa
+
+LUFA_PATH := ../contrib/LUFA-120219
+LUFA_OPTS = -D USB_DEVICE_ONLY
+LUFA_OPTS += -D DEVICE_STATE_AS_GPIOR=0
+LUFA_OPTS += -D ORDERED_EP_CONFIG
+LUFA_OPTS += -D FIXED_CONTROL_ENDPOINT_SIZE=8
+LUFA_OPTS += -D FIXED_NUM_CONFIGURATIONS=1
+LUFA_OPTS += -D USE_FLASH_DESCRIPTORS
+LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"
+LUFA_OPTS += -D INTERRUPT_CONTROL_ENDPOINT
+
+LUFA_OPTS += -D USB_MANUFACTURER="L\"equinox\""
+LUFA_OPTS += -D USB_PRODUCT="L\"$(NAME)\""
+
+LUFA_COMPONENTS := USB USBCLASS
+
+include ../include.mk
diff --git a/usb-adc-dustsensor/usb-adc-dustsensor.c b/usb-adc-dustsensor/usb-adc-dustsensor.c new file mode 100644 index 0000000..8e0e600 --- /dev/null +++ b/usb-adc-dustsensor/usb-adc-dustsensor.c @@ -0,0 +1,116 @@ +/*
+ * spreadspace avr utils
+ *
+ *
+ * Copyright (C) 2013 Christian Pointner <equinox@spreadspace.org>
+ *
+ * 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 <avr/power.h>
+#include <util/delay.h>
+
+#include "util.h"
+#include "led.h"
+
+#include "usbio.h"
+#include <stdio.h>
+
+
+// Dustsensor defines:
+#include <LUFA/Drivers/Peripheral/ADC.h>
+
+#define PIN_HIGH(PORT, PIN) PORT |= (1 << PIN)
+#define PIN_LOW(PORT, PIN) PORT &= ~(1 << PIN)
+
+#define OP_SETBIT |=
+#define OP_CLEARBIT &= ~
+#define OP_CHECK &
+#define PIN_SW(PORTDDRREG, PIN, OP) PORTDDRREG OP (1 << PIN)
+
+#define HIGHv OP_SETBIT
+#define LOWv OP_CLEARBIT
+#define DUSTS_LED(OP) PIN_SW(PORTF, PF0, OP)
+
+#define DUSTS_ADC_NUM 1
+#define DUSTS_ADC_MUX_MASK ADC_CHANNEL1
+
+
+void dusts_init(void)
+{
+ DDRF = (1 << PF0);
+ DUSTS_LED(HIGHv);
+ //ADC_Init(ADC_SINGLE_CONVERSION);
+ ADC_Init(ADC_FREE_RUNNING);
+ ADC_SetupChannel (DUSTS_ADC_NUM);
+}
+
+int16_t dusts_measure(void) {
+ DUSTS_LED(LOWv);
+ _delay_us(280);
+
+ //measure ADC
+ int16_t m = ADC_GetChannelReading(ADC_REFERENCE_AVCC | DUSTS_ADC_MUX_MASK);
+
+ _delay_us(40);
+ DUSTS_LED(HIGHv);
+ return m;
+}
+
+
+
+
+
+void handle_cmd(uint8_t cmd)
+{
+ int16_t mv=0;
+ switch(cmd) {
+ case 'm': mv = dusts_measure(); printf("Dust Value: %d\r\n", mv); break;
+ case 'r': reset2bootloader(); break;
+ default: printf("error\r\n"); return;
+ }
+}
+
+int main(void)
+{
+ MCUSR &= ~(1 << WDRF);
+ wdt_disable();
+ led_init();
+ led_on();
+ cpu_init();
+ usbio_init();
+ dusts_init();
+ sei();
+
+ for(;;) {
+ led_off();
+ int16_t BytesReceived = usbio_bytes_received();
+ while(BytesReceived > 0) {
+ int ReceivedByte = fgetc(stdin);
+ if(ReceivedByte != EOF) {
+ handle_cmd(ReceivedByte);
+ }
+ BytesReceived--;
+ }
+ usbio_task();
+ led_on();
+ _delay_ms(100);
+ }
+}
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