mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_NXP/TARGET_LPC408X/pinmap.c@621:9c82b0f79f3d, 2015-09-11 (annotated)

Committer:
mbed_official
Date:
Fri Sep 11 09:30:09 2015 +0100
Revision:
621:9c82b0f79f3d
Parent:
285:31249416b6f9 
Synchronized with git revision 6c1d63e069ab9bd86de92e8296ca783681257538



Full URL: https://github.com/mbedmicro/mbed/commit/6c1d63e069ab9bd86de92e8296ca783681257538/



ignore target files not supported by the yotta module

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 15:4892fe388435 1 /* mbed Microcontroller Library
bogdanm 15:4892fe388435 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 15:4892fe388435 3 *
bogdanm 15:4892fe388435 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 15:4892fe388435 5 * you may not use this file except in compliance with the License.
bogdanm 15:4892fe388435 6 * You may obtain a copy of the License at
bogdanm 15:4892fe388435 7 *
bogdanm 15:4892fe388435 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 15:4892fe388435 9 *
bogdanm 15:4892fe388435 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 15:4892fe388435 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 15:4892fe388435 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 15:4892fe388435 13 * See the License for the specific language governing permissions and
bogdanm 15:4892fe388435 14 * limitations under the License.
bogdanm 15:4892fe388435 15 */
mbed_official 227:7bd0639b8911 16 #include "mbed_assert.h"
bogdanm 15:4892fe388435 17 #include "pinmap.h"
mbed_official 285:31249416b6f9 18 #include "mbed_error.h"
bogdanm 15:4892fe388435 19
bogdanm 15:4892fe388435 20 void pin_function(PinName pin, int function) {
mbed_official 227:7bd0639b8911 21 MBED_ASSERT(pin != (PinName)NC);
bogdanm 15:4892fe388435 22 __IO uint32_t *reg = (__IO uint32_t*) (LPC_IOCON_BASE + 4 * pin);
bogdanm 15:4892fe388435 23
bogdanm 15:4892fe388435 24 // pin function bits: [2:0] -> 111 = (0x7)
bogdanm 15:4892fe388435 25 *reg = (*reg & ~0x7) | (function & 0x7);
bogdanm 15:4892fe388435 26 }
bogdanm 15:4892fe388435 27
bogdanm 15:4892fe388435 28 void pin_mode(PinName pin, PinMode mode) {
mbed_official 227:7bd0639b8911 29 MBED_ASSERT(pin != (PinName)NC);
bogdanm 15:4892fe388435 30
bogdanm 15:4892fe388435 31 uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2;
bogdanm 15:4892fe388435 32
bogdanm 15:4892fe388435 33 __IO uint32_t *reg = (__IO uint32_t*) (LPC_IOCON_BASE + 4 * pin);
bogdanm 15:4892fe388435 34 uint32_t tmp = *reg;
bogdanm 15:4892fe388435 35
bogdanm 15:4892fe388435 36 // pin mode bits: [4:3] -> 11000 = (0x3 << 3)
bogdanm 15:4892fe388435 37 tmp &= ~(0x3 << 3);
bogdanm 15:4892fe388435 38 tmp |= (mode & 0x3) << 3;
bogdanm 15:4892fe388435 39
bogdanm 15:4892fe388435 40 // drain
bogdanm 15:4892fe388435 41 tmp &= ~(0x1 << 10);
bogdanm 15:4892fe388435 42 tmp |= drain << 10;
bogdanm 15:4892fe388435 43
bogdanm 15:4892fe388435 44 *reg = tmp;
bogdanm 15:4892fe388435 45 }