added prescaler for 16 bit pwm in LPC1347 target
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Diff: targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/pinmap.c
- 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