mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/hal/TARGET_NXP/TARGET_LPC176X/pinmap.c@19:398f4c622e1b, 2013-08-19 (annotated)
- Committer:
- bogdanm
- Date:
- Mon Aug 19 18:17:02 2013 +0300
- Revision:
- 19:398f4c622e1b
- Parent:
- 13:0645d8841f51
- Child:
- 227:7bd0639b8911
Sync with official mbed library release 66
Who changed what in which revision?
User | Revision | Line number | New 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 | void pin_function(PinName pin, int function) { |
bogdanm | 19:398f4c622e1b | 20 | if (pin == (PinName)NC) return; |
emilmont | 10:3bc89ef62ce7 | 21 | |
emilmont | 10:3bc89ef62ce7 | 22 | uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0; |
emilmont | 10:3bc89ef62ce7 | 23 | int index = pin_number >> 4; |
emilmont | 10:3bc89ef62ce7 | 24 | int offset = (pin_number & 0xF) << 1; |
emilmont | 10:3bc89ef62ce7 | 25 | |
emilmont | 10:3bc89ef62ce7 | 26 | PINCONARRAY->PINSEL[index] &= ~(0x3 << offset); |
emilmont | 10:3bc89ef62ce7 | 27 | PINCONARRAY->PINSEL[index] |= function << offset; |
emilmont | 10:3bc89ef62ce7 | 28 | } |
emilmont | 10:3bc89ef62ce7 | 29 | |
emilmont | 10:3bc89ef62ce7 | 30 | void pin_mode(PinName pin, PinMode mode) { |
bogdanm | 19:398f4c622e1b | 31 | if (pin == (PinName)NC) { return; } |
emilmont | 10:3bc89ef62ce7 | 32 | |
emilmont | 10:3bc89ef62ce7 | 33 | uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0; |
emilmont | 10:3bc89ef62ce7 | 34 | int index = pin_number >> 5; |
emilmont | 10:3bc89ef62ce7 | 35 | int offset = pin_number & 0x1F; |
emilmont | 10:3bc89ef62ce7 | 36 | uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2; |
emilmont | 10:3bc89ef62ce7 | 37 | |
emilmont | 10:3bc89ef62ce7 | 38 | PINCONARRAY->PINMODE_OD[index] &= ~(drain << offset); |
emilmont | 10:3bc89ef62ce7 | 39 | PINCONARRAY->PINMODE_OD[index] |= drain << offset; |
emilmont | 10:3bc89ef62ce7 | 40 | |
emilmont | 10:3bc89ef62ce7 | 41 | if (!drain) { |
emilmont | 10:3bc89ef62ce7 | 42 | index = pin_number >> 4; |
emilmont | 10:3bc89ef62ce7 | 43 | offset = (pin_number & 0xF) << 1; |
emilmont | 10:3bc89ef62ce7 | 44 | |
emilmont | 10:3bc89ef62ce7 | 45 | PINCONARRAY->PINMODE[index] &= ~(0x3 << offset); |
emilmont | 10:3bc89ef62ce7 | 46 | PINCONARRAY->PINMODE[index] |= (uint32_t)mode << offset; |
emilmont | 10:3bc89ef62ce7 | 47 | } |
emilmont | 10:3bc89ef62ce7 | 48 | } |