mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

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_LPC11UXX/pinmap.c@13:0645d8841f51, 2013-08-05 (annotated)

Committer:
bogdanm
Date:
Mon Aug 05 14:12:34 2013 +0300
Revision:
13:0645d8841f51
Parent:
vendor/NXP/LPC11U24/hal/pinmap.c@10:3bc89ef62ce7
Child:
19:398f4c622e1b
Update mbed sources to revision 64

Who changed what in which revision?

UserRevisionLine numberNew contents of line
emilmont 10:3bc89ef62ce7 1 /* mbed Microcontroller Library
emilmont 10:3bc89ef62ce7 2 * Copyright (c) 2006-2013 ARM Limited
emilmont 10:3bc89ef62ce7 3 *
emilmont 10:3bc89ef62ce7 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 10:3bc89ef62ce7 5 * you may not use this file except in compliance with the License.
emilmont 10:3bc89ef62ce7 6 * You may obtain a copy of the License at
emilmont 10:3bc89ef62ce7 7 *
emilmont 10:3bc89ef62ce7 8 * http://www.apache.org/licenses/LICENSE-2.0
emilmont 10:3bc89ef62ce7 9 *
emilmont 10:3bc89ef62ce7 10 * Unless required by applicable law or agreed to in writing, software
emilmont 10:3bc89ef62ce7 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 10:3bc89ef62ce7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 10:3bc89ef62ce7 13 * See the License for the specific language governing permissions and
emilmont 10:3bc89ef62ce7 14 * limitations under the License.
emilmont 10:3bc89ef62ce7 15 */
emilmont 10:3bc89ef62ce7 16 #include "pinmap.h"
emilmont 10:3bc89ef62ce7 17 #include "error.h"
emilmont 10:3bc89ef62ce7 18
emilmont 10:3bc89ef62ce7 19 #define LPC_IOCON0_BASE (LPC_IOCON_BASE)
emilmont 10:3bc89ef62ce7 20 #define LPC_IOCON1_BASE (LPC_IOCON_BASE + 0x60)
emilmont 10:3bc89ef62ce7 21
emilmont 10:3bc89ef62ce7 22 void pin_function(PinName pin, int function) {
emilmont 10:3bc89ef62ce7 23 if (pin == (uint32_t)NC) return;
emilmont 10:3bc89ef62ce7 24
emilmont 10:3bc89ef62ce7 25 uint32_t pin_number = (uint32_t)pin;
emilmont 10:3bc89ef62ce7 26
emilmont 10:3bc89ef62ce7 27 __IO uint32_t *reg = (pin_number < 32) ?
emilmont 10:3bc89ef62ce7 28 (__IO uint32_t*)(LPC_IOCON0_BASE + 4 * pin_number) :
emilmont 10:3bc89ef62ce7 29 (__IO uint32_t*)(LPC_IOCON1_BASE + 4 * (pin_number - 32));
emilmont 10:3bc89ef62ce7 30
emilmont 10:3bc89ef62ce7 31 // pin function bits: [2:0] -> 111 = (0x7)
emilmont 10:3bc89ef62ce7 32 *reg = (*reg & ~0x7) | (function & 0x7);
emilmont 10:3bc89ef62ce7 33 }
emilmont 10:3bc89ef62ce7 34
emilmont 10:3bc89ef62ce7 35 void pin_mode(PinName pin, PinMode mode) {
emilmont 10:3bc89ef62ce7 36 if (pin == (uint32_t)NC) { return; }
emilmont 10:3bc89ef62ce7 37
emilmont 10:3bc89ef62ce7 38 uint32_t pin_number = (uint32_t)pin;
emilmont 10:3bc89ef62ce7 39 uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2;
emilmont 10:3bc89ef62ce7 40
emilmont 10:3bc89ef62ce7 41 __IO uint32_t *reg = (pin_number < 32) ?
emilmont 10:3bc89ef62ce7 42 (__IO uint32_t*)(LPC_IOCON0_BASE + 4 * pin_number) :
emilmont 10:3bc89ef62ce7 43 (__IO uint32_t*)(LPC_IOCON1_BASE + 4 * (pin_number - 32));
emilmont 10:3bc89ef62ce7 44 uint32_t tmp = *reg;
emilmont 10:3bc89ef62ce7 45
emilmont 10:3bc89ef62ce7 46 // pin mode bits: [4:3] -> 11000 = (0x3 << 3)
emilmont 10:3bc89ef62ce7 47 tmp &= ~(0x3 << 3);
emilmont 10:3bc89ef62ce7 48 tmp |= (mode & 0x3) << 3;
emilmont 10:3bc89ef62ce7 49
emilmont 10:3bc89ef62ce7 50 // drain
emilmont 10:3bc89ef62ce7 51 tmp &= ~(0x1 << 10);
emilmont 10:3bc89ef62ce7 52 tmp |= drain << 10;
emilmont 10:3bc89ef62ce7 53
emilmont 10:3bc89ef62ce7 54 *reg = tmp;
emilmont 10:3bc89ef62ce7 55 }