mbed library sources: Modified to operate FRDM-KL25Z at 48MHz from internal 32kHz oscillator (nothing else changed).
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The only file that changed is: mbed-src-FLL48/targets/cmsis/TARGET_Freescale/TARGET_KL25Z/system_MKL25Z4.h
Diff: targets/hal/TARGET_NXP/TARGET_LPC43XX/gpio_api.c
- Revision:
- 20:4263a77256ae
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_NXP/TARGET_LPC43XX/gpio_api.c Tue Sep 10 15:14:19 2013 +0300 @@ -0,0 +1,61 @@ +/* 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. + * + * Ported to NXP LPC43XX by Micromint USA <support@micromint.com> + */ +#include "gpio_api.h" +#include "pinmap.h" + +uint32_t gpio_set(PinName pin) { + int f = 0; + unsigned int port = (unsigned int)MBED_GPIO_PORT(pin); + + f = SCU_PINIO_FAST | ((port > 4) ? (4) : (0)); + pin_function(pin, f); + + return (1 << ((int)pin & 0x1F)); +} + +void gpio_init(gpio_t *obj, PinName pin, PinDirection direction) { + if (pin == NC) return; + + obj->pin = pin; + obj->mask = gpio_set(pin); + + LPC_GPIO_T *port_reg = (LPC_GPIO_T *) (LPC_GPIO_PORT_BASE); + unsigned int port = (unsigned int)MBED_GPIO_PORT(pin); + + obj->reg_set = &port_reg->SET[port]; + obj->reg_clr = &port_reg->CLR[port]; + obj->reg_in = &port_reg->PIN[port]; + obj->reg_dir = &port_reg->DIR[port]; + + gpio_dir(obj, direction); + switch (direction) { + case PIN_OUTPUT: pin_mode(pin, PullNone); break; + case PIN_INPUT : pin_mode(pin, PullDown); break; + } +} + +void gpio_mode(gpio_t *obj, PinMode mode) { + pin_mode(obj->pin, mode); +} + +void gpio_dir(gpio_t *obj, PinDirection direction) { + switch (direction) { + case PIN_INPUT : *obj->reg_dir &= ~obj->mask; break; + case PIN_OUTPUT: *obj->reg_dir |= obj->mask; break; + } +}