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_LPC408X/pinmap.c@89:9655231f5786, 2014-02-11 (annotated)

Committer:
mbed_official
Date:
Tue Feb 11 15:00:06 2014 +0000
Revision:
89:9655231f5786
Parent:
29:6ac4027eff2b 
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
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 */
bogdanm 15:4892fe388435 16 #include "pinmap.h"
bogdanm 15:4892fe388435 17 #include "error.h"
bogdanm 15:4892fe388435 18
bogdanm 15:4892fe388435 19 void pin_function(PinName pin, int function) {
mbed_official 29:6ac4027eff2b 20 if (pin == (PinName)NC) return;
bogdanm 15:4892fe388435 21
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 29:6ac4027eff2b 29 if (pin == (PinName)NC) { return; }
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 }