added prescaler for 16 bit pwm in LPC1347 target
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Diff: targets/hal/TARGET_NUVOTON/TARGET_NUC472/port_api.c
- Revision:
- 144:ef7eb2e8f9f7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NUVOTON/TARGET_NUC472/port_api.c Fri Sep 02 15:07:44 2016 +0100 @@ -0,0 +1,99 @@ +/* mbed Microcontroller Library + * Copyright (c) 2015-2016 Nuvoton + * + * 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 "port_api.h" +#include "gpio_api.h" +#include "pinmap.h" +#include "mbed_error.h" + +#if DEVICE_PORTIN || DEVICE_PORTOUT || DEVICE_PORTINOUT + +PinName port_pin(PortName port, int pin_n) +{ + return (PinName) NU_PORT_N_PIN_TO_PINNAME(port, pin_n); +} + +void port_init(port_t *obj, PortName port, int mask, PinDirection dir) +{ + obj->port = port; + obj->mask = mask; + obj->direction = dir; + + uint32_t i; + obj->direction = dir; + for (i = 0; i < GPIO_PIN_MAX; i++) { + if (obj->mask & (1 << i)) { + gpio_set(port_pin(port, i)); + } + } + + port_dir(obj, dir); +} + +void port_dir(port_t *obj, PinDirection dir) +{ + uint32_t i; + obj->direction = dir; + for (i = 0; i < GPIO_PIN_MAX; i++) { + if (obj->mask & (1 << i)) { + if (dir == PIN_OUTPUT) { + GPIO_SetMode(NU_PORT_BASE(obj->port), 1 << i, GPIO_MODE_OUTPUT); + } else { // PIN_INPUT + GPIO_SetMode(NU_PORT_BASE(obj->port), 1 << i, GPIO_MODE_INPUT); + } + } + } +} + +void port_mode(port_t *obj, PinMode mode) +{ + uint32_t i; + + for (i = 0; i < GPIO_PIN_MAX; i++) { + if (obj->mask & (1 << i)) { + pin_mode(port_pin(obj->port, i), mode); + } + } +} + +void port_write(port_t *obj, int value) +{ + uint32_t i; + uint32_t port_index = obj->port; + + for (i = 0; i < GPIO_PIN_MAX; i++) { + if (obj->mask & (1 << i)) { + GPIO_PIN_ADDR(port_index, i) = (value & obj->mask) ? 1 : 0; + } + } +} + +int port_read(port_t *obj) +{ + uint32_t i; + uint32_t port_index = obj->port; + int value = 0; + + for (i = 0; i < GPIO_PIN_MAX; i++) { + if (obj->mask & (1 << i)) { + value = value | (GPIO_PIN_ADDR(port_index, i) << i); + } + } + + return value; +} + +#endif