Ermanno Brusadin / mbed-src

mbed library sources

targets/hal/TARGET_NXP/TARGET_LPC43XX/pinmap.c@0:0a673c671a56, 2016-07-27 (annotated)

Committer:
ebrus
Date:
Wed Jul 27 18:35:32 2016 +0000
Revision:
0:0a673c671a56
4

Who changed what in which revision?

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ebrus 0:0a673c671a56 1 /* mbed Microcontroller Library
ebrus 0:0a673c671a56 2 * Copyright (c) 2006-2013 ARM Limited
ebrus 0:0a673c671a56 3 *
ebrus 0:0a673c671a56 4 * Licensed under the Apache License, Version 2.0 (the "License");
ebrus 0:0a673c671a56 5 * you may not use this file except in compliance with the License.
ebrus 0:0a673c671a56 6 * You may obtain a copy of the License at
ebrus 0:0a673c671a56 7 *
ebrus 0:0a673c671a56 8 * http://www.apache.org/licenses/LICENSE-2.0
ebrus 0:0a673c671a56 9 *
ebrus 0:0a673c671a56 10 * Unless required by applicable law or agreed to in writing, software
ebrus 0:0a673c671a56 11 * distributed under the License is distributed on an "AS IS" BASIS,
ebrus 0:0a673c671a56 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ebrus 0:0a673c671a56 13 * See the License for the specific language governing permissions and
ebrus 0:0a673c671a56 14 * limitations under the License.
ebrus 0:0a673c671a56 15 *
ebrus 0:0a673c671a56 16 * Ported to NXP LPC43XX by Micromint USA <support@micromint.com>
ebrus 0:0a673c671a56 17 */
ebrus 0:0a673c671a56 18 #include "mbed_assert.h"
ebrus 0:0a673c671a56 19 #include "pinmap.h"
ebrus 0:0a673c671a56 20 #include "mbed_error.h"
ebrus 0:0a673c671a56 21
ebrus 0:0a673c671a56 22 void pin_function(PinName pin, int function) {
ebrus 0:0a673c671a56 23 MBED_ASSERT(pin != (PinName)NC);
ebrus 0:0a673c671a56 24
ebrus 0:0a673c671a56 25 __IO uint32_t *reg = (__IO uint32_t*) MBED_SCU_REG(pin);
ebrus 0:0a673c671a56 26
ebrus 0:0a673c671a56 27 // Set pin function
ebrus 0:0a673c671a56 28 *reg = function;
ebrus 0:0a673c671a56 29 }
ebrus 0:0a673c671a56 30
ebrus 0:0a673c671a56 31 void pin_mode(PinName pin, PinMode mode) {
ebrus 0:0a673c671a56 32 MBED_ASSERT(pin != (PinName)NC); // && (mode != OpenDrain));
ebrus 0:0a673c671a56 33
ebrus 0:0a673c671a56 34 __IO uint32_t *reg = (__IO uint32_t*) MBED_SCU_REG(pin);
ebrus 0:0a673c671a56 35 uint32_t tmp = *reg;
ebrus 0:0a673c671a56 36
ebrus 0:0a673c671a56 37 // pin mode bits: [4:3] -> 11000 = (0x3 << 3)
ebrus 0:0a673c671a56 38 tmp &= ~(0x3 << 3);
ebrus 0:0a673c671a56 39 tmp |= (mode & 0x3) << 3;
ebrus 0:0a673c671a56 40
ebrus 0:0a673c671a56 41 *reg = tmp;
ebrus 0:0a673c671a56 42 }