Mateusz Kowalik / Application

USB Serial application

Fork of USBSerial_HelloWorld by Samuel Mokrani

mbed-dev/targets/TARGET_NXP/TARGET_LPC11U6X/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) 2006-2013 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 __IO uint32_t *reg = (__IO uint32_t*)(LPC_IOCON_BASE + (pin & 0x1FF));
Zaitsev 10:41552d038a69 23
Zaitsev 10:41552d038a69 24 // pin function bits: [2:0] -> 111 = (0x7)
Zaitsev 10:41552d038a69 25 *reg = (*reg & ~0x7) | (function & 0x7);
Zaitsev 10:41552d038a69 26 }
Zaitsev 10:41552d038a69 27
Zaitsev 10:41552d038a69 28 void pin_mode(PinName pin, PinMode mode) {
Zaitsev 10:41552d038a69 29 MBED_ASSERT(pin != (PinName)NC);
Zaitsev 10:41552d038a69 30 if ((pin == P0_4) || (pin == P0_5)) {
Zaitsev 10:41552d038a69 31 // The true open-drain pins PIO0_4 and PIO0_5 can be configured for different I2C-bus speeds.
Zaitsev 10:41552d038a69 32 return;
Zaitsev 10:41552d038a69 33 }
Zaitsev 10:41552d038a69 34
Zaitsev 10:41552d038a69 35 __IO uint32_t *reg = (__IO uint32_t*)(LPC_IOCON_BASE + (pin & 0x1FF));
Zaitsev 10:41552d038a69 36
Zaitsev 10:41552d038a69 37 if (mode == OpenDrain) {
Zaitsev 10:41552d038a69 38 *reg |= (1 << 10);
Zaitsev 10:41552d038a69 39 } else {
Zaitsev 10:41552d038a69 40 uint32_t tmp = *reg;
Zaitsev 10:41552d038a69 41 tmp &= ~(0x3 << 3);
Zaitsev 10:41552d038a69 42 tmp |= (mode & 0x3) << 3;
Zaitsev 10:41552d038a69 43 *reg = tmp;
Zaitsev 10:41552d038a69 44 }
Zaitsev 10:41552d038a69 45 }