added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

Revision:
144:ef7eb2e8f9f7
Parent:
0:9b334a45a8ff
--- a/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap.c	Tue Aug 02 14:07:36 2016 +0000
+++ b/targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap.c	Fri Sep 02 15:07:44 2016 +0100
@@ -1,63 +1,56 @@
-/***************************************************************************//**
- * @file pinmap.c
- *******************************************************************************
- * @section License
- * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
- *******************************************************************************
- *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
- *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
- *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
- * obligation to support this Software. Silicon Labs is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
- *
- * Silicon Labs will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
- *
- ******************************************************************************/
-
-#include "pinmap.h"
-#include "em_gpio.h"
-#include "em_cmu.h"
-#include "mbed_assert.h"
-
-static int gpio_clock_inited = 0;
-
-void pin_function(PinName pin, int function)
-{
-    //Intentionally left empty. We have repurposed the function field.
-}
-
-void pin_mode(PinName pin, PinMode mode)
-{
-    MBED_ASSERT((0xFFFFFF00 |pin) != NC);
-
-    /* Enable GPIO clock if not already done */
-    if (!gpio_clock_inited) {
-        CMU_ClockEnable(cmuClock_GPIO, true);
-        gpio_clock_inited = 1;
-    }
-
-    /* Pin and port index encoded in one uint32.
-     * First four bits represent the pin number
-     * The remaining bits represent the port number */
-    uint32_t pin_number = (uint32_t) pin;
-    int pin_index = (pin_number & 0xF);
-    int port_index = pin_number >> 4;
-
-    GPIO_PinModeSet(port_index, pin_index, mode & 0xF, GPIO_PinOutGet(port_index, pin_index & 0xF));
-}
-
-// TODO_LP get pin_mode to be able to store previous settings
+/***************************************************************************//**
+ * @file pinmap.c
+ *******************************************************************************
+ * @section License
+ * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
+ *******************************************************************************
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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.
+ *
+ ******************************************************************************/
+
+#include "pinmap.h"
+#include "em_gpio.h"
+#include "em_cmu.h"
+#include "mbed_assert.h"
+
+static int gpio_clock_inited = 0;
+
+void pin_function(PinName pin, int function)
+{
+    //Intentionally left empty. We have repurposed the function field.
+}
+
+void pin_mode(PinName pin, PinMode mode)
+{
+    MBED_ASSERT((0xFFFFFF00 |pin) != NC);
+
+    /* Enable GPIO clock if not already done */
+    if (!gpio_clock_inited) {
+        CMU_ClockEnable(cmuClock_GPIO, true);
+        gpio_clock_inited = 1;
+    }
+
+    /* Pin and port index encoded in one uint32.
+     * First four bits represent the pin number
+     * The remaining bits represent the port number */
+    uint32_t pin_number = (uint32_t) pin;
+    int pin_index = (pin_number & 0xF);
+    int port_index = pin_number >> 4;
+
+    GPIO_PinModeSet(port_index, pin_index, mode & 0xF, GPIO_PinOutGet(port_index, pin_index & 0xF));
+}
+
+// TODO_LP get pin_mode to be able to store previous settings