USB Serial application
Fork of USBSerial_HelloWorld by
mbed-dev/targets/TARGET_Freescale/TARGET_K20XX/pinmap.c
- Committer:
- Zaitsev
- Date:
- 2017-01-10
- Revision:
- 10:41552d038a69
File content as of revision 10:41552d038a69:
/* mbed Microcontroller Library * Copyright (c) 2006-2015 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 "pinmap.h" void pin_function(PinName pin, int function) { MBED_ASSERT(pin != (PinName)NC); 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) { MBED_ASSERT(pin != (PinName)NC); __IO uint32_t* pin_pcr = (__IO uint32_t*)(PORTA_BASE + pin); // pin pullup bits: [1:0] -> 11 = (0x3) *pin_pcr = (*pin_pcr & ~0x3) | mode; }