]> oss.titaniummirror.com Git - tinyos-2.x.git/blobdiff - tos/platforms/tmirws/sensors/WindVaneAdcP.nc
Move weather instrument sensors code out of TOSDIR/chips, as they aren't.
[tinyos-2.x.git] / tos / platforms / tmirws / sensors / WindVaneAdcP.nc
diff --git a/tos/platforms/tmirws/sensors/WindVaneAdcP.nc b/tos/platforms/tmirws/sensors/WindVaneAdcP.nc
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+/*
+ * Copyright (c) 2008, Titanium Mirror, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * - Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - Neither the name of Titanium Mirror, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from
+ *   this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/**
+ * Battery ADC reading.
+ * 
+ * @author R. Steve McKown <rsmckown@gmail.com>
+ */
+#include "Msp430Adc12.h"
+
+module BatteryAdcP {
+  provides interface AdcConfigure<const msp430adc12_channel_config_t*>;
+}
+implementation {
+  /* TODO: The internal references are unsable, varying by more than 0.1V and
+   * jumping around.  The external reference of 2.50V seems stable.
+   */
+  const msp430adc12_channel_config_t config = {
+      inch: INPUT_CHANNEL_A0,
+#if 0 /* internal references unstable */
+      sref: REFERENCE_VREFplus_AVss,
+      ref2_5v: REFVOLT_LEVEL_1_5, /* REFVOLT_LEVEL_2_5, */
+#else /* external reference is stable */
+      sref: REFERENCE_VeREFplus_AVss,
+      ref2_5v: REFVOLT_LEVEL_1_5,
+#endif
+#if 0 /* clock source doesn't seem to affect stability */
+      adc12ssel: SHT_SOURCE_ADC12OSC,
+      adc12div: SHT_CLOCK_DIV_8,
+#else
+      adc12ssel: SHT_SOURCE_ACLK,
+      adc12div: SHT_CLOCK_DIV_1,
+#endif
+      sht: SAMPLE_HOLD_8_CYCLES,
+      sampcon_ssel: SAMPCON_SOURCE_ACLK,
+      sampcon_id: SAMPCON_CLOCK_DIV_1
+  };
+  
+  async command const msp430adc12_channel_config_t* AdcConfigure.getConfiguration()
+  {
+    return &config;
+  }
+}