Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/hal/TARGET_RENESAS/TARGET_VK_RZ_A1H/gpio_api.c@119:3921aeca8633, 2016-04-29 (annotated)

Committer:
mbed_official
Date:
Fri Apr 29 01:15:11 2016 +0100
Revision:
119:3921aeca8633
Synchronized with git revision fe9720f24b1adc71ab6962506ec51290f6afd270



Full URL: https://github.com/mbedmicro/mbed/commit/fe9720f24b1adc71ab6962506ec51290f6afd270/



[Renesas RZ/A1H] Enable asynchronous communications

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 119:3921aeca8633 1 /* mbed Microcontroller Library
mbed_official 119:3921aeca8633 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 119:3921aeca8633 3 *
mbed_official 119:3921aeca8633 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 119:3921aeca8633 5 * you may not use this file except in compliance with the License.
mbed_official 119:3921aeca8633 6 * You may obtain a copy of the License at
mbed_official 119:3921aeca8633 7 *
mbed_official 119:3921aeca8633 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 119:3921aeca8633 9 *
mbed_official 119:3921aeca8633 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 119:3921aeca8633 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 119:3921aeca8633 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 119:3921aeca8633 13 * See the License for the specific language governing permissions and
mbed_official 119:3921aeca8633 14 * limitations under the License.
mbed_official 119:3921aeca8633 15 */
mbed_official 119:3921aeca8633 16 #include "gpio_api.h"
mbed_official 119:3921aeca8633 17 #include "pinmap.h"
mbed_official 119:3921aeca8633 18 #include "gpio_addrdefine.h"
mbed_official 119:3921aeca8633 19
mbed_official 119:3921aeca8633 20
mbed_official 119:3921aeca8633 21 uint32_t gpio_set(PinName pin) {
mbed_official 119:3921aeca8633 22 pin_function(pin, 0);
mbed_official 119:3921aeca8633 23 return (1 << PINNO(pin));
mbed_official 119:3921aeca8633 24 }
mbed_official 119:3921aeca8633 25
mbed_official 119:3921aeca8633 26 void gpio_init(gpio_t *obj, PinName pin) {
mbed_official 119:3921aeca8633 27 int group ;
mbed_official 119:3921aeca8633 28 obj->pin = pin;
mbed_official 119:3921aeca8633 29 if(pin == NC) return;
mbed_official 119:3921aeca8633 30
mbed_official 119:3921aeca8633 31 obj->mask = gpio_set(pin);
mbed_official 119:3921aeca8633 32
mbed_official 119:3921aeca8633 33 group = PINGROUP(pin);
mbed_official 119:3921aeca8633 34 if (group > 9) return;
mbed_official 119:3921aeca8633 35
mbed_official 119:3921aeca8633 36 obj->reg_set = (volatile uint32_t *) PSR(group);
mbed_official 119:3921aeca8633 37 obj->reg_in = (volatile uint32_t *) PPR(group);
mbed_official 119:3921aeca8633 38 obj->reg_dir = (volatile uint32_t *)PMSR(group);
mbed_official 119:3921aeca8633 39 obj->reg_buf = (volatile uint32_t *)PIBC(group);
mbed_official 119:3921aeca8633 40 }
mbed_official 119:3921aeca8633 41
mbed_official 119:3921aeca8633 42 void gpio_mode(gpio_t *obj, PinMode mode) {
mbed_official 119:3921aeca8633 43 /* Pull up and Pull down settings aren't supported because RZ/A1H doesn't have pull up/down for pins(signals). */
mbed_official 119:3921aeca8633 44 }
mbed_official 119:3921aeca8633 45
mbed_official 119:3921aeca8633 46 void gpio_dir(gpio_t *obj, PinDirection direction) {
mbed_official 119:3921aeca8633 47 switch (direction) {
mbed_official 119:3921aeca8633 48 case PIN_INPUT :
mbed_official 119:3921aeca8633 49 *obj->reg_dir = (obj->mask << 16) | obj->mask;
mbed_official 119:3921aeca8633 50 *obj->reg_buf |= obj->mask;
mbed_official 119:3921aeca8633 51 break;
mbed_official 119:3921aeca8633 52 case PIN_OUTPUT:
mbed_official 119:3921aeca8633 53 *obj->reg_dir = (obj->mask << 16) | 0;
mbed_official 119:3921aeca8633 54 *obj->reg_buf &= ~obj->mask;
mbed_official 119:3921aeca8633 55 break;
mbed_official 119:3921aeca8633 56 }
mbed_official 119:3921aeca8633 57 }