tmimsp: clean up open drain for sht1x DATA

[tinyos-2.x.git] / tos / platforms / tmimsp / tmirws / chips / sht11 / Msp430ODPUC.nc

diff --git a/tos/platforms/tmimsp/tmirws/chips/sht11/Msp430ODPUC.nc b/tos/platforms/tmimsp/tmirws/chips/sht11/Msp430ODPUC.nc
new file mode 100644 (file)
index 0000000..3e36dba
--- /dev/null
+++ b/tos/platforms/tmimsp/tmirws/chips/sht11/Msp430ODPUC.nc
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2012, 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 the Technische Universität Berlin 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.
+ */
+
+/**
+ * Provide an open drain output with internal pull-up.
+ *
+ * Works only for MSP430 processor ports having internal pull up/down resistors.
+ * Since a low value is asserted by using the pull-down resistor instead of the
+ * pull-up resistor, the slew rate of the net might in some cases be too slow.
+ *
+ * This pin can only be an open drain output and cannot be reconfigured.
+ *
+ * @author R. Steve McKown <rsmckown@gmail.com>
+ */
+
+generic configuration Msp430ODPUC()
+{
+  provides interface GeneralIO;
+  uses interface HplMsp430GeneralIO as HplGeneralIO;
+}
+implementation
+{
+  components new Msp430ODPUP();
+  GeneralIO = Msp430ODPUP;
+  HplGeneralIO = Msp430ODPUP;
+
+  components MainC;
+  MainC.SoftwareInit -> Msp430ODPUP;
+}
+