SDK Development / mbed-src

mbed SDK library sources

Fork of mbed-src by mbed official

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_LPC176X/pinmap.c@89:9655231f5786, 2014-02-11 (annotated)

Committer:
mbed_official
Date:
Tue Feb 11 15:00:06 2014 +0000
Revision:
89:9655231f5786
Parent:
19:398f4c622e1b 
Synchronized with git revision 17499c34d273f02497e0706d3abc516b12f3fc62



Full URL: https://github.com/mbedmicro/mbed/commit/17499c34d273f02497e0706d3abc516b12f3fc62/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 10:3bc89ef62ce7 1 /* mbed Microcontroller Library
emilmont 10:3bc89ef62ce7 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 10:3bc89ef62ce7 3 *
emilmont 10:3bc89ef62ce7 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 10:3bc89ef62ce7 5 * you may not use this file except in compliance with the License.
emilmont 10:3bc89ef62ce7 6 * You may obtain a copy of the License at
emilmont 10:3bc89ef62ce7 7 *
emilmont 10:3bc89ef62ce7 8 * http://www.apache.org/licenses/LICENSE-2.0
emilmont 10:3bc89ef62ce7 9 *
emilmont 10:3bc89ef62ce7 10 * Unless required by applicable law or agreed to in writing, software
emilmont 10:3bc89ef62ce7 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 10:3bc89ef62ce7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 10:3bc89ef62ce7 13 * See the License for the specific language governing permissions and
emilmont 10:3bc89ef62ce7 14 * limitations under the License.
emilmont 10:3bc89ef62ce7 15 */
emilmont 10:3bc89ef62ce7 16 #include "pinmap.h"
emilmont 10:3bc89ef62ce7 17 #include "error.h"
emilmont 10:3bc89ef62ce7 18
emilmont 10:3bc89ef62ce7 19 void pin_function(PinName pin, int function) {
bogdanm 19:398f4c622e1b 20 if (pin == (PinName)NC) return;
emilmont 10:3bc89ef62ce7 21
emilmont 10:3bc89ef62ce7 22 uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0;
emilmont 10:3bc89ef62ce7 23 int index = pin_number >> 4;
emilmont 10:3bc89ef62ce7 24 int offset = (pin_number & 0xF) << 1;
emilmont 10:3bc89ef62ce7 25
emilmont 10:3bc89ef62ce7 26 PINCONARRAY->PINSEL[index] &= ~(0x3 << offset);
emilmont 10:3bc89ef62ce7 27 PINCONARRAY->PINSEL[index] |= function << offset;
emilmont 10:3bc89ef62ce7 28 }
emilmont 10:3bc89ef62ce7 29
emilmont 10:3bc89ef62ce7 30 void pin_mode(PinName pin, PinMode mode) {
bogdanm 19:398f4c622e1b 31 if (pin == (PinName)NC) { return; }
emilmont 10:3bc89ef62ce7 32
emilmont 10:3bc89ef62ce7 33 uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0;
emilmont 10:3bc89ef62ce7 34 int index = pin_number >> 5;
emilmont 10:3bc89ef62ce7 35 int offset = pin_number & 0x1F;
emilmont 10:3bc89ef62ce7 36 uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2;
emilmont 10:3bc89ef62ce7 37
emilmont 10:3bc89ef62ce7 38 PINCONARRAY->PINMODE_OD[index] &= ~(drain << offset);
emilmont 10:3bc89ef62ce7 39 PINCONARRAY->PINMODE_OD[index] |= drain << offset;
emilmont 10:3bc89ef62ce7 40
emilmont 10:3bc89ef62ce7 41 if (!drain) {
emilmont 10:3bc89ef62ce7 42 index = pin_number >> 4;
emilmont 10:3bc89ef62ce7 43 offset = (pin_number & 0xF) << 1;
emilmont 10:3bc89ef62ce7 44
emilmont 10:3bc89ef62ce7 45 PINCONARRAY->PINMODE[index] &= ~(0x3 << offset);
emilmont 10:3bc89ef62ce7 46 PINCONARRAY->PINMODE[index] |= (uint32_t)mode << offset;
emilmont 10:3bc89ef62ce7 47 }
emilmont 10:3bc89ef62ce7 48 }