mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_Freescale/TARGET_K20D5M/pinmap.c
- Committer:
- mbed_official
- Date:
- 2013-12-26
- Revision:
- 68:41613245dfd7
- Child:
- 227:7bd0639b8911
File content as of revision 68:41613245dfd7:
/* 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 "pinmap.h" #include "error.h" void pin_function(PinName pin, int function) { if (pin == (PinName)NC) return; uint32_t port_n = (uint32_t)pin >> PORT_SHIFT; uint32_t pin_n = (uint32_t)(pin & 0x7C) >> 2; SIM->SCGC5 |= 1 << (SIM_SCGC5_PORTA_SHIFT + port_n); __IO uint32_t* pin_pcr = &(((PORT_Type *)(PORTA_BASE + 0x1000 * port_n)))->PCR[pin_n]; // pin mux bits: [10:8] -> 11100000000 = (0x700) *pin_pcr = (*pin_pcr & ~0x700) | (function << 8); } void pin_mode(PinName pin, PinMode mode) { if (pin == (PinName)NC) { return; } __IO uint32_t* pin_pcr = (__IO uint32_t*)(PORTA_BASE + pin); // pin pullup bits: [1:0] -> 11 = (0x3) *pin_pcr = (*pin_pcr & ~0x3) | mode; }