Diff: meas.h

Revision:

4:6fdcdf7aff8d

Child:

31:d47cffcb0a3e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/meas.h	Mon Dec 08 12:48:44 2014 +0000
@@ -0,0 +1,78 @@
+/*
+ *  Copyright 2014 Embedded Artists AB
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef _MEAS_H_
+#define _MEAS_H_
+
+/******************************************************************************
+ * Includes
+ *****************************************************************************/
+
+#include "mbed.h"
+#include "dm_board_config.h"
+
+/******************************************************************************
+ * Typedefs and defines
+ *****************************************************************************/
+
+// Internal macros, don't use directly
+#if defined(DM_BOARD_ENABLE_MEASSURING_PINS)
+  #define _INTERNAL_SET_MEAS_PIN(__port, __pin)    ((LPC_GPIO ## __port)->SET = (1UL << (__pin)))
+  #define _INTERNAL_CLR_MEAS_PIN(__port, __pin)    ((LPC_GPIO ## __port)->CLR = (1UL << (__pin)))
+#else
+  #define _INTERNAL_SET_MEAS_PIN(__port, __pin)    do {} while(0)
+  #define _INTERNAL_CLR_MEAS_PIN(__port, __pin)    do {} while(0)
+#endif
+
+// Manipulates measurement pin 1 which is GPIO1[24], available on J10-7
+#define SET_MEAS_PIN_1()     _INTERNAL_SET_MEAS_PIN(1, 24)
+#define CLR_MEAS_PIN_1()     _INTERNAL_CLR_MEAS_PIN(1, 24)
+
+// Manipulates measurement pin 2 which is GPIO1[23], available on J10-8
+#define SET_MEAS_PIN_2()     _INTERNAL_SET_MEAS_PIN(1, 23)
+#define CLR_MEAS_PIN_2()     _INTERNAL_CLR_MEAS_PIN(1, 23)
+
+// Manipulates measurement pin 3 which is GPIO1[20], available on J10-9
+#define SET_MEAS_PIN_3()     _INTERNAL_SET_MEAS_PIN(1, 20)
+#define CLR_MEAS_PIN_3()     _INTERNAL_CLR_MEAS_PIN(1, 20)
+
+// Manipulates measurement pin 4 which is GPIO1[19], available on J10-10
+#define SET_MEAS_PIN_4()     _INTERNAL_SET_MEAS_PIN(1, 19)
+#define CLR_MEAS_PIN_4()     _INTERNAL_CLR_MEAS_PIN(1, 19)
+
+
+#if defined(DM_BOARD_ENABLE_MEASSURING_PINS)
+  #define _INTERNAL_INIT_MEAS() do {\
+      LPC_IOCON->P1_19 &= ~0x7; \
+      LPC_IOCON->P1_20 &= ~0x7; \
+      LPC_IOCON->P1_23 &= ~0x7; \
+      LPC_IOCON->P1_24 &= ~0x7; \
+      LPC_GPIO1->DIR |= (1<<19) | (1<<20) | (1<<23) | (1<<24); \
+      CLR_MEAS_PIN_1(); \
+      CLR_MEAS_PIN_2(); \
+      CLR_MEAS_PIN_3(); \
+      CLR_MEAS_PIN_4(); \
+    } while(0)
+#else
+  #define _INTERNAL_INIT_MEAS()                    do {} while(0)
+#endif
+
+/******************************************************************************
+ * Global Variables
+ *****************************************************************************/
+
+#endif /* end _MEAS_H_ */
+