added prescaler for 16 bit pwm in LPC1347 target
Fork of mbed-dev by
targets/hal/TARGET_Freescale/TARGET_KLXX/gpio_api.c@0:9b334a45a8ff, 2015-10-01 (annotated)
- Committer:
- bogdanm
- Date:
- Thu Oct 01 15:25:22 2015 +0300
- Revision:
- 0:9b334a45a8ff
- Child:
- 144:ef7eb2e8f9f7
Initial commit on mbed-dev
Replaces mbed-src (now inactive)
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bogdanm | 0:9b334a45a8ff | 1 | /* mbed Microcontroller Library |
bogdanm | 0:9b334a45a8ff | 2 | * Copyright (c) 2006-2013 ARM Limited |
bogdanm | 0:9b334a45a8ff | 3 | * |
bogdanm | 0:9b334a45a8ff | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
bogdanm | 0:9b334a45a8ff | 5 | * you may not use this file except in compliance with the License. |
bogdanm | 0:9b334a45a8ff | 6 | * You may obtain a copy of the License at |
bogdanm | 0:9b334a45a8ff | 7 | * |
bogdanm | 0:9b334a45a8ff | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
bogdanm | 0:9b334a45a8ff | 9 | * |
bogdanm | 0:9b334a45a8ff | 10 | * Unless required by applicable law or agreed to in writing, software |
bogdanm | 0:9b334a45a8ff | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
bogdanm | 0:9b334a45a8ff | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
bogdanm | 0:9b334a45a8ff | 13 | * See the License for the specific language governing permissions and |
bogdanm | 0:9b334a45a8ff | 14 | * limitations under the License. |
bogdanm | 0:9b334a45a8ff | 15 | */ |
bogdanm | 0:9b334a45a8ff | 16 | #include "mbed_assert.h" |
bogdanm | 0:9b334a45a8ff | 17 | #include "gpio_api.h" |
bogdanm | 0:9b334a45a8ff | 18 | #include "pinmap.h" |
bogdanm | 0:9b334a45a8ff | 19 | |
bogdanm | 0:9b334a45a8ff | 20 | uint32_t gpio_set(PinName pin) { |
bogdanm | 0:9b334a45a8ff | 21 | MBED_ASSERT(pin != (PinName)NC); |
bogdanm | 0:9b334a45a8ff | 22 | pin_function(pin, 1); |
bogdanm | 0:9b334a45a8ff | 23 | return 1 << ((pin & 0x7F) >> 2); |
bogdanm | 0:9b334a45a8ff | 24 | } |
bogdanm | 0:9b334a45a8ff | 25 | |
bogdanm | 0:9b334a45a8ff | 26 | void gpio_init(gpio_t *obj, PinName pin) { |
bogdanm | 0:9b334a45a8ff | 27 | obj->pin = pin; |
bogdanm | 0:9b334a45a8ff | 28 | if (pin == (PinName)NC) |
bogdanm | 0:9b334a45a8ff | 29 | return; |
bogdanm | 0:9b334a45a8ff | 30 | |
bogdanm | 0:9b334a45a8ff | 31 | obj->mask = gpio_set(pin); |
bogdanm | 0:9b334a45a8ff | 32 | |
bogdanm | 0:9b334a45a8ff | 33 | unsigned int port = (unsigned int)pin >> PORT_SHIFT; |
bogdanm | 0:9b334a45a8ff | 34 | |
bogdanm | 0:9b334a45a8ff | 35 | #if defined(TARGET_KL43Z) |
bogdanm | 0:9b334a45a8ff | 36 | GPIO_Type *reg = (GPIO_Type *)(GPIOA_BASE + port * 0x40); |
bogdanm | 0:9b334a45a8ff | 37 | #else |
bogdanm | 0:9b334a45a8ff | 38 | FGPIO_Type *reg = (FGPIO_Type *)(FPTA_BASE + port * 0x40); |
bogdanm | 0:9b334a45a8ff | 39 | #endif |
bogdanm | 0:9b334a45a8ff | 40 | obj->reg_set = ®->PSOR; |
bogdanm | 0:9b334a45a8ff | 41 | obj->reg_clr = ®->PCOR; |
bogdanm | 0:9b334a45a8ff | 42 | obj->reg_in = ®->PDIR; |
bogdanm | 0:9b334a45a8ff | 43 | obj->reg_dir = ®->PDDR; |
bogdanm | 0:9b334a45a8ff | 44 | } |
bogdanm | 0:9b334a45a8ff | 45 | |
bogdanm | 0:9b334a45a8ff | 46 | void gpio_mode(gpio_t *obj, PinMode mode) { |
bogdanm | 0:9b334a45a8ff | 47 | pin_mode(obj->pin, mode); |
bogdanm | 0:9b334a45a8ff | 48 | } |
bogdanm | 0:9b334a45a8ff | 49 | |
bogdanm | 0:9b334a45a8ff | 50 | void gpio_dir(gpio_t *obj, PinDirection direction) { |
bogdanm | 0:9b334a45a8ff | 51 | MBED_ASSERT(obj->pin != (PinName)NC); |
bogdanm | 0:9b334a45a8ff | 52 | switch (direction) { |
bogdanm | 0:9b334a45a8ff | 53 | case PIN_INPUT : |
bogdanm | 0:9b334a45a8ff | 54 | *obj->reg_dir &= ~obj->mask; |
bogdanm | 0:9b334a45a8ff | 55 | break; |
bogdanm | 0:9b334a45a8ff | 56 | case PIN_OUTPUT: |
bogdanm | 0:9b334a45a8ff | 57 | *obj->reg_dir |= obj->mask; |
bogdanm | 0:9b334a45a8ff | 58 | break; |
bogdanm | 0:9b334a45a8ff | 59 | } |
bogdanm | 0:9b334a45a8ff | 60 | } |