lzbp li / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/hal/TARGET_NXP/TARGET_LPC15XX/pinmap.c@285:31249416b6f9, 2014-08-15 (annotated)

Committer:
mbed_official
Date:
Fri Aug 15 16:30:08 2014 +0100
Revision:
285:31249416b6f9
Parent:
251:de9a1e4ffd79 
Synchronized with git revision 601712595f49bbd2a2771c52cf3e84c9c7a591af



Full URL: https://github.com/mbedmicro/mbed/commit/601712595f49bbd2a2771c52cf3e84c9c7a591af/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 103:9b881da47c92 1 /* mbed Microcontroller Library
mbed_official 103:9b881da47c92 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 103:9b881da47c92 3 *
mbed_official 103:9b881da47c92 4 * Licensed under the Apache License, Version 2.0 (the "License");
mbed_official 103:9b881da47c92 5 * you may not use this file except in compliance with the License.
mbed_official 103:9b881da47c92 6 * You may obtain a copy of the License at
mbed_official 103:9b881da47c92 7 *
mbed_official 103:9b881da47c92 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 103:9b881da47c92 9 *
mbed_official 103:9b881da47c92 10 * Unless required by applicable law or agreed to in writing, software
mbed_official 103:9b881da47c92 11 * distributed under the License is distributed on an "AS IS" BASIS,
mbed_official 103:9b881da47c92 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mbed_official 103:9b881da47c92 13 * See the License for the specific language governing permissions and
mbed_official 103:9b881da47c92 14 * limitations under the License.
mbed_official 103:9b881da47c92 15 */
mbed_official 227:7bd0639b8911 16 #include "mbed_assert.h"
mbed_official 103:9b881da47c92 17 #include "pinmap.h"
mbed_official 285:31249416b6f9 18 #include "mbed_error.h"
mbed_official 103:9b881da47c92 19
mbed_official 103:9b881da47c92 20 void pin_function(PinName pin, int function) {
mbed_official 103:9b881da47c92 21 }
mbed_official 103:9b881da47c92 22
mbed_official 103:9b881da47c92 23 void pin_mode(PinName pin, PinMode mode) {
mbed_official 227:7bd0639b8911 24 MBED_ASSERT(pin != (PinName)NC);
mbed_official 103:9b881da47c92 25
mbed_official 103:9b881da47c92 26 if ((pin == P0_22) || (pin == P0_23)) {
mbed_official 103:9b881da47c92 27 // The true open-drain pins PIO0_22 and PIO0_23 can be configured for different I2C-bus speeds.
mbed_official 103:9b881da47c92 28 return;
mbed_official 103:9b881da47c92 29 }
mbed_official 103:9b881da47c92 30
mbed_official 103:9b881da47c92 31 __IO uint32_t *reg = (__IO uint32_t*)(LPC_IOCON_BASE + (pin * 4));
mbed_official 103:9b881da47c92 32
mbed_official 103:9b881da47c92 33 if (mode == OpenDrain) {
mbed_official 103:9b881da47c92 34 *reg |= (1 << 10);
mbed_official 103:9b881da47c92 35 } else {
mbed_official 103:9b881da47c92 36 uint32_t tmp = *reg;
mbed_official 103:9b881da47c92 37 tmp &= ~(0x3 << 3);
mbed_official 103:9b881da47c92 38 tmp |= (mode & 0x3) << 3;
mbed_official 103:9b881da47c92 39 *reg = tmp;
mbed_official 103:9b881da47c92 40 }
mbed_official 103:9b881da47c92 41 }