Steve Kim / mbed-src

mbed library sources(for async_print)

Dependents:   AsyncPrint

Fork of mbed-src by mbed official

targets/hal/TARGET_NXP/TARGET_LPC43XX/pinmap.c@20:4263a77256ae, 2013-09-10 (annotated)

Committer:
bogdanm
Date:
Tue Sep 10 15:14:19 2013 +0300
Revision:
20:4263a77256ae
Child:
227:7bd0639b8911
Sync with git revision 171dda705c947bf910926a0b73d6a4797802554d

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 20:4263a77256ae 1 /* mbed Microcontroller Library
bogdanm 20:4263a77256ae 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 20:4263a77256ae 3 *
bogdanm 20:4263a77256ae 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 20:4263a77256ae 5 * you may not use this file except in compliance with the License.
bogdanm 20:4263a77256ae 6 * You may obtain a copy of the License at
bogdanm 20:4263a77256ae 7 *
bogdanm 20:4263a77256ae 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 20:4263a77256ae 9 *
bogdanm 20:4263a77256ae 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 20:4263a77256ae 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 20:4263a77256ae 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 20:4263a77256ae 13 * See the License for the specific language governing permissions and
bogdanm 20:4263a77256ae 14 * limitations under the License.
bogdanm 20:4263a77256ae 15 *
bogdanm 20:4263a77256ae 16 * Ported to NXP LPC43XX by Micromint USA <support@micromint.com>
bogdanm 20:4263a77256ae 17 */
bogdanm 20:4263a77256ae 18 #include "pinmap.h"
bogdanm 20:4263a77256ae 19 #include "error.h"
bogdanm 20:4263a77256ae 20
bogdanm 20:4263a77256ae 21 void pin_function(PinName pin, int function) {
bogdanm 20:4263a77256ae 22 if (pin == (uint32_t)NC) return;
bogdanm 20:4263a77256ae 23
bogdanm 20:4263a77256ae 24 __IO uint32_t *reg = (__IO uint32_t*) MBED_SCU_REG(pin);
bogdanm 20:4263a77256ae 25
bogdanm 20:4263a77256ae 26 // Set pin function
bogdanm 20:4263a77256ae 27 *reg = function;
bogdanm 20:4263a77256ae 28 }
bogdanm 20:4263a77256ae 29
bogdanm 20:4263a77256ae 30 void pin_mode(PinName pin, PinMode mode) {
bogdanm 20:4263a77256ae 31 if (pin == (uint32_t)NC) { return; }
bogdanm 20:4263a77256ae 32
bogdanm 20:4263a77256ae 33 if (mode == OpenDrain) error("OpenDrain not supported on LPC43XX");
bogdanm 20:4263a77256ae 34
bogdanm 20:4263a77256ae 35 __IO uint32_t *reg = (__IO uint32_t*) MBED_SCU_REG(pin);
bogdanm 20:4263a77256ae 36 uint32_t tmp = *reg;
bogdanm 20:4263a77256ae 37
bogdanm 20:4263a77256ae 38 // pin mode bits: [4:3] -> 11000 = (0x3 << 3)
bogdanm 20:4263a77256ae 39 tmp &= ~(0x3 << 3);
bogdanm 20:4263a77256ae 40 tmp |= (mode & 0x3) << 3;
bogdanm 20:4263a77256ae 41
bogdanm 20:4263a77256ae 42 *reg = tmp;
bogdanm 20:4263a77256ae 43 }