added prescaler for 16 bit pwm in LPC1347 target
Fork of mbed-dev by
targets/hal/TARGET_Freescale/TARGET_KSDK2_MCUS/api/gpio_api.c
- Committer:
- <>
- Date:
- 2016-09-02
- Revision:
- 144:ef7eb2e8f9f7
- Parent:
- 121:7f86b4238bec
File content as of revision 144:ef7eb2e8f9f7:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * 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 "mbed_assert.h" #include "gpio_api.h" #include "pinmap.h" #include "fsl_port.h" #include "fsl_gpio.h" static GPIO_Type * const gpio_addrs[] = GPIO_BASE_PTRS; uint32_t gpio_set(PinName pin) { MBED_ASSERT(pin != (PinName)NC); uint32_t pin_num = pin & 0xFF; pin_function(pin, (int)kPORT_MuxAsGpio); return 1 << pin_num; } void gpio_init(gpio_t *obj, PinName pin) { obj->pin = pin; if (pin == (PinName)NC) return; pin_function(pin, (int)kPORT_MuxAsGpio); } void gpio_mode(gpio_t *obj, PinMode mode) { pin_mode(obj->pin, mode); } void gpio_dir(gpio_t *obj, PinDirection direction) { MBED_ASSERT(obj->pin != (PinName)NC); uint32_t port = obj->pin >> GPIO_PORT_SHIFT; uint32_t pin_num = obj->pin & 0xFF; GPIO_Type *base = gpio_addrs[port]; switch (direction) { case PIN_INPUT: base->PDDR &= ~(1U << pin_num); break; case PIN_OUTPUT: base->PDDR |= (1U << pin_num); break; } } void gpio_write(gpio_t *obj, int value) { MBED_ASSERT(obj->pin != (PinName)NC); uint32_t port = obj->pin >> GPIO_PORT_SHIFT; uint32_t pin = obj->pin & 0xFF; GPIO_WritePinOutput(gpio_addrs[port], pin, value); } int gpio_read(gpio_t *obj) { MBED_ASSERT(obj->pin != (PinName)NC); uint32_t port = obj->pin >> GPIO_PORT_SHIFT; uint32_t pin = obj->pin & 0xFF; return (int)GPIO_ReadPinInput(gpio_addrs[port], pin); }