1 files changed, 76 insertions, 0 deletions
diff --git a/altoslib/AltosMs5607.java b/altoslib/AltosMs5607.java
new file mode 100644
index 00000000..253e2f9b
--- /dev/null
+++ b/altoslib/AltosMs5607.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright © 2012 Keith Packard <keithp@keithp.com>
+ *
+ * This program 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; version 2 of the License.
+ *
+ * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+package altoslib;
+
+public class AltosMs5607 {
+	public int	reserved;
+	public int	sens;
+	public int	off;
+	public int	tcs;
+	public int	tco;
+	public int	tref;
+	public int	tempsens;
+	public int	crc;
+
+	public int	raw_pres;
+	public int	raw_temp;
+	public int	pa;
+	public int	cc;
+
+	void convert() {
+		int	dT;
+		int TEMP;
+		long OFF;
+		long SENS;
+		int P;
+
+		dT = raw_temp - ((int) tref << 8);
+	
+		TEMP = (int) (2000 + (((long) dT * tempsens) >> 23));
+
+		OFF = ((long) off << 17) + (((long) tco * dT) >> 6);
+
+		SENS = ((long) sens << 16) + (((long) tcs * dT) >> 7);
+
+		if (TEMP < 2000) {
+			int	T2 = (int) (((long) dT * (long) dT) >> 31);
+			int TEMPM = TEMP - 2000;
+			long OFF2 = (61 * (long) TEMPM * (long) TEMPM) >> 4;
+			long SENS2 = 2 * (long) TEMPM * (long) TEMPM;
+			if (TEMP < 1500) {
+				int TEMPP = TEMP + 1500;
+				long TEMPP2 = TEMPP * TEMPP;
+				OFF2 = OFF2 + 15 * TEMPP2;
+				SENS2 = SENS2 + 8 * TEMPP2;
+			}
+			TEMP -= T2;
+			OFF -= OFF2;
+			SENS -= SENS2;
+		}
+
+		pa = (int) (((((long) raw_pres * SENS) >> 21) - OFF) >> 15);
+		cc = TEMP;
+	}
+
+	public int set(int in_pres, int in_temp) {
+		raw_pres = in_pres;
+		raw_temp = in_temp;
+		convert();
+		return pa;
+	}
+}