summaryrefslogtreecommitdiff
path: root/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC43XX/pinmap.c
blob: fd3ff7532edc867f270c8f02940bb97f146a83a1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
/* 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 "mbed_assert.h"
#include "pinmap.h"
#include "mbed_error.h"

void pin_function(PinName pin, int function) {
    MBED_ASSERT(pin != (PinName)NC);

    __IO uint32_t *reg = (__IO uint32_t*) MBED_SCU_REG(pin);

    // Set pin function
    *reg = function;
}

void pin_mode(PinName pin, PinMode mode) {
    MBED_ASSERT(pin != (PinName)NC); // && (mode != OpenDrain));

    __IO uint32_t *reg = (__IO uint32_t*) MBED_SCU_REG(pin);
    uint32_t tmp = *reg;
    
    // pin mode bits: [4:3] -> 11000 = (0x3 << 3)
    tmp &= ~(0x3 << 3);
    tmp |= (mode & 0x3) << 3;

    *reg = tmp;
}