Jonathan Piat / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/hal/TARGET_NXP/TARGET_LPC2460/pinmap.c@554:edd95c0879f8, 2015-06-01 (annotated)

Committer:
mbed_official
Date:
Mon Jun 01 11:00:11 2015 +0100
Revision:
554:edd95c0879f8
Synchronized with git revision 7a1d25e3dfbe5bc1457774d4af3c73383a0ff81d



Full URL: https://github.com/mbedmicro/mbed/commit/7a1d25e3dfbe5bc1457774d4af3c73383a0ff81d/



Silicon Labs - Initial test framework pin definitions for EFM32 platforms

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 554:edd95c0879f8 1 /* mbed Microcontroller Library
mbed_official 554:edd95c0879f8 2 * Copyright (c) 2006-2015 ARM Limited
mbed_official 554:edd95c0879f8 3 *
mbed_official 554:edd95c0879f8 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 554:edd95c0879f8 5 * you may not use this file except in compliance with the License.
mbed_official 554:edd95c0879f8 6 * You may obtain a copy of the License at
mbed_official 554:edd95c0879f8 7 *
mbed_official 554:edd95c0879f8 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 554:edd95c0879f8 9 *
mbed_official 554:edd95c0879f8 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 554:edd95c0879f8 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 554:edd95c0879f8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 554:edd95c0879f8 13 * See the License for the specific language governing permissions and
mbed_official 554:edd95c0879f8 14 * limitations under the License.
mbed_official 554:edd95c0879f8 15 */
mbed_official 554:edd95c0879f8 16 #include "mbed_assert.h"
mbed_official 554:edd95c0879f8 17 #include "pinmap.h"
mbed_official 554:edd95c0879f8 18 #include "mbed_error.h"
mbed_official 554:edd95c0879f8 19
mbed_official 554:edd95c0879f8 20 void pin_function(PinName pin, int function) {
mbed_official 554:edd95c0879f8 21 MBED_ASSERT(pin != (PinName)NC);
mbed_official 554:edd95c0879f8 22
mbed_official 554:edd95c0879f8 23 uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0;
mbed_official 554:edd95c0879f8 24 int index = pin_number >> 4;
mbed_official 554:edd95c0879f8 25 int offset = (pin_number & 0xF) << 1;
mbed_official 554:edd95c0879f8 26
mbed_official 554:edd95c0879f8 27 PINCONARRAY->PINSEL[index] &= ~(0x3 << offset);
mbed_official 554:edd95c0879f8 28 PINCONARRAY->PINSEL[index] |= function << offset;
mbed_official 554:edd95c0879f8 29 }
mbed_official 554:edd95c0879f8 30
mbed_official 554:edd95c0879f8 31 void pin_mode(PinName pin, PinMode mode) {
mbed_official 554:edd95c0879f8 32 MBED_ASSERT((pin != (PinName)NC) && (mode != OpenDrain));
mbed_official 554:edd95c0879f8 33
mbed_official 554:edd95c0879f8 34 uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0;
mbed_official 554:edd95c0879f8 35 int index = pin_number >> 5;
mbed_official 554:edd95c0879f8 36 int offset = pin_number & 0x1F;
mbed_official 554:edd95c0879f8 37 uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2;
mbed_official 554:edd95c0879f8 38
mbed_official 554:edd95c0879f8 39 if (!drain) {
mbed_official 554:edd95c0879f8 40 index = pin_number >> 4;
mbed_official 554:edd95c0879f8 41 offset = (pin_number & 0xF) << 1;
mbed_official 554:edd95c0879f8 42
mbed_official 554:edd95c0879f8 43 PINCONARRAY->PINMODE[index] &= ~(0x3 << offset);
mbed_official 554:edd95c0879f8 44 PINCONARRAY->PINMODE[index] |= (uint32_t)mode << offset;
mbed_official 554:edd95c0879f8 45 }
mbed_official 554:edd95c0879f8 46 }