Mateusz Kowalik / Application

USB Serial application

Fork of USBSerial_HelloWorld by Samuel Mokrani

mbed-dev/targets/TARGET_NXP/TARGET_LPC2460/pinmap.c@11:b3f2a8bdac4d, 2017-12-16 (annotated)

Committer:
Zaitsev
Date:
Sat Dec 16 10:26:48 2017 +0000
Revision:
11:b3f2a8bdac4d
Parent:
10:41552d038a69 
A copy for D.S;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Zaitsev 10:41552d038a69 1 /* mbed Microcontroller Library
Zaitsev 10:41552d038a69 2 * Copyright (c) 2006-2015 ARM Limited
Zaitsev 10:41552d038a69 3 *
Zaitsev 10:41552d038a69 4 * Licensed under the Apache License, Version 2.0 (the "License");
Zaitsev 10:41552d038a69 5 * you may not use this file except in compliance with the License.
Zaitsev 10:41552d038a69 6 * You may obtain a copy of the License at
Zaitsev 10:41552d038a69 7 *
Zaitsev 10:41552d038a69 8 * http://www.apache.org/licenses/LICENSE-2.0
Zaitsev 10:41552d038a69 9 *
Zaitsev 10:41552d038a69 10 * Unless required by applicable law or agreed to in writing, software
Zaitsev 10:41552d038a69 11 * distributed under the License is distributed on an "AS IS" BASIS,
Zaitsev 10:41552d038a69 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Zaitsev 10:41552d038a69 13 * See the License for the specific language governing permissions and
Zaitsev 10:41552d038a69 14 * limitations under the License.
Zaitsev 10:41552d038a69 15 */
Zaitsev 10:41552d038a69 16 #include "mbed_assert.h"
Zaitsev 10:41552d038a69 17 #include "pinmap.h"
Zaitsev 10:41552d038a69 18 #include "mbed_error.h"
Zaitsev 10:41552d038a69 19
Zaitsev 10:41552d038a69 20 void pin_function(PinName pin, int function) {
Zaitsev 10:41552d038a69 21 MBED_ASSERT(pin != (PinName)NC);
Zaitsev 10:41552d038a69 22
Zaitsev 10:41552d038a69 23 uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0;
Zaitsev 10:41552d038a69 24 int index = pin_number >> 4;
Zaitsev 10:41552d038a69 25 int offset = (pin_number & 0xF) << 1;
Zaitsev 10:41552d038a69 26
Zaitsev 10:41552d038a69 27 PINCONARRAY->PINSEL[index] &= ~(0x3 << offset);
Zaitsev 10:41552d038a69 28 PINCONARRAY->PINSEL[index] |= function << offset;
Zaitsev 10:41552d038a69 29 }
Zaitsev 10:41552d038a69 30
Zaitsev 10:41552d038a69 31 void pin_mode(PinName pin, PinMode mode) {
Zaitsev 10:41552d038a69 32 MBED_ASSERT((pin != (PinName)NC) && (mode != OpenDrain));
Zaitsev 10:41552d038a69 33
Zaitsev 10:41552d038a69 34 uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0;
Zaitsev 10:41552d038a69 35 int index = pin_number >> 5;
Zaitsev 10:41552d038a69 36 int offset = pin_number & 0x1F;
Zaitsev 10:41552d038a69 37 uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2;
Zaitsev 10:41552d038a69 38
Zaitsev 10:41552d038a69 39 if (!drain) {
Zaitsev 10:41552d038a69 40 index = pin_number >> 4;
Zaitsev 10:41552d038a69 41 offset = (pin_number & 0xF) << 1;
Zaitsev 10:41552d038a69 42
Zaitsev 10:41552d038a69 43 PINCONARRAY->PINMODE[index] &= ~(0x3 << offset);
Zaitsev 10:41552d038a69 44 PINCONARRAY->PINMODE[index] |= (uint32_t)mode << offset;
Zaitsev 10:41552d038a69 45 }
Zaitsev 10:41552d038a69 46 }