added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

Committer:
JojoS
Date:
Sat Sep 10 15:32:04 2016 +0000
Revision:
147:ba84b7dc41a7
Parent:
144:ef7eb2e8f9f7
added prescaler for 16 bit timers (solution as in LPC11xx), default prescaler 31 for max 28 ms period time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2006-2013 ARM Limited
<> 144:ef7eb2e8f9f7 3 *
<> 144:ef7eb2e8f9f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 5 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 6 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 9 *
<> 144:ef7eb2e8f9f7 10 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 13 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 14 * limitations under the License.
<> 144:ef7eb2e8f9f7 15 */
<> 144:ef7eb2e8f9f7 16 #include "gpio_api.h"
<> 144:ef7eb2e8f9f7 17
<> 144:ef7eb2e8f9f7 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
<> 144:ef7eb2e8f9f7 19 {
<> 144:ef7eb2e8f9f7 20 gpio_init(gpio, pin);
<> 144:ef7eb2e8f9f7 21 if (pin != NC) {
<> 144:ef7eb2e8f9f7 22 gpio_dir(gpio, PIN_INPUT);
<> 144:ef7eb2e8f9f7 23 gpio_mode(gpio, mode);
<> 144:ef7eb2e8f9f7 24 }
<> 144:ef7eb2e8f9f7 25 }
<> 144:ef7eb2e8f9f7 26
<> 144:ef7eb2e8f9f7 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
<> 144:ef7eb2e8f9f7 28 {
<> 144:ef7eb2e8f9f7 29 gpio_init(gpio, pin);
<> 144:ef7eb2e8f9f7 30 if (pin != NC) {
<> 144:ef7eb2e8f9f7 31 gpio_write(gpio, value);
<> 144:ef7eb2e8f9f7 32 gpio_dir(gpio, PIN_OUTPUT);
<> 144:ef7eb2e8f9f7 33 gpio_mode(gpio, mode);
<> 144:ef7eb2e8f9f7 34 }
<> 144:ef7eb2e8f9f7 35 }
<> 144:ef7eb2e8f9f7 36
<> 144:ef7eb2e8f9f7 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
<> 144:ef7eb2e8f9f7 38 gpio_init_in_ex(gpio, pin, PullDefault);
<> 144:ef7eb2e8f9f7 39 }
<> 144:ef7eb2e8f9f7 40
<> 144:ef7eb2e8f9f7 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
<> 144:ef7eb2e8f9f7 42 _gpio_init_in(gpio, pin, mode);
<> 144:ef7eb2e8f9f7 43 }
<> 144:ef7eb2e8f9f7 44
<> 144:ef7eb2e8f9f7 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
<> 144:ef7eb2e8f9f7 46 gpio_init_out_ex(gpio, pin, 0);
<> 144:ef7eb2e8f9f7 47 }
<> 144:ef7eb2e8f9f7 48
<> 144:ef7eb2e8f9f7 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
<> 144:ef7eb2e8f9f7 50 _gpio_init_out(gpio, pin, PullNone, value);
<> 144:ef7eb2e8f9f7 51 }
<> 144:ef7eb2e8f9f7 52
<> 144:ef7eb2e8f9f7 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
<> 144:ef7eb2e8f9f7 54 if (direction == PIN_INPUT) {
<> 144:ef7eb2e8f9f7 55 _gpio_init_in(gpio, pin, mode);
<> 144:ef7eb2e8f9f7 56 if (pin != NC)
<> 144:ef7eb2e8f9f7 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
<> 144:ef7eb2e8f9f7 58 } else {
<> 144:ef7eb2e8f9f7 59 _gpio_init_out(gpio, pin, mode, value);
<> 144:ef7eb2e8f9f7 60 }
<> 144:ef7eb2e8f9f7 61 }