mbed library sources modified for open wear
Dependents: openwear-lifelogger-example
Fork of mbed-src by
targets/hal/TARGET_NXP/TARGET_LPC11XX_11CXX/pinmap.c@310:6188e0254baa, 2014-09-16 (annotated)
- Committer:
- janekm
- Date:
- Tue Sep 16 22:42:01 2014 +0000
- Revision:
- 310:6188e0254baa
- Parent:
- 286:31249416b6f9
N/A
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 30:91c1d09ada54 | 1 | /* mbed Microcontroller Library |
mbed_official | 30:91c1d09ada54 | 2 | * Copyright (c) 2006-2013 ARM Limited |
mbed_official | 30:91c1d09ada54 | 3 | * |
mbed_official | 30:91c1d09ada54 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
mbed_official | 30:91c1d09ada54 | 5 | * you may not use this file except in compliance with the License. |
mbed_official | 30:91c1d09ada54 | 6 | * You may obtain a copy of the License at |
mbed_official | 30:91c1d09ada54 | 7 | * |
mbed_official | 30:91c1d09ada54 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
mbed_official | 30:91c1d09ada54 | 9 | * |
mbed_official | 30:91c1d09ada54 | 10 | * Unless required by applicable law or agreed to in writing, software |
mbed_official | 30:91c1d09ada54 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbed_official | 30:91c1d09ada54 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbed_official | 30:91c1d09ada54 | 13 | * See the License for the specific language governing permissions and |
mbed_official | 30:91c1d09ada54 | 14 | * limitations under the License. |
mbed_official | 30:91c1d09ada54 | 15 | */ |
mbed_official | 227:7bd0639b8911 | 16 | #include "mbed_assert.h" |
mbed_official | 30:91c1d09ada54 | 17 | #include "pinmap.h" |
mbed_official | 286:31249416b6f9 | 18 | #include "mbed_error.h" |
mbed_official | 30:91c1d09ada54 | 19 | |
mbed_official | 30:91c1d09ada54 | 20 | void pin_function(PinName pin, int function) { |
mbed_official | 227:7bd0639b8911 | 21 | MBED_ASSERT(pin != (PinName)NC); |
mbed_official | 30:91c1d09ada54 | 22 | uint32_t offset = (uint32_t)pin & 0xff; |
mbed_official | 30:91c1d09ada54 | 23 | __IO uint32_t *reg = (__IO uint32_t*)(LPC_IOCON_BASE + offset); |
mbed_official | 30:91c1d09ada54 | 24 | |
mbed_official | 30:91c1d09ada54 | 25 | // pin function bits: [2:0] -> 111 = (0x7) |
mbed_official | 30:91c1d09ada54 | 26 | *reg = (*reg & ~0x7) | (function & 0x7); |
mbed_official | 30:91c1d09ada54 | 27 | } |
mbed_official | 30:91c1d09ada54 | 28 | |
mbed_official | 30:91c1d09ada54 | 29 | void pin_mode(PinName pin, PinMode mode) { |
mbed_official | 227:7bd0639b8911 | 30 | MBED_ASSERT(pin != (PinName)NC); |
mbed_official | 30:91c1d09ada54 | 31 | uint32_t offset = (uint32_t)pin & 0xff; |
mbed_official | 227:7bd0639b8911 | 32 | uint32_t drain = ((uint32_t)mode & (uint32_t)OpenDrain) >> 2; |
mbed_official | 30:91c1d09ada54 | 33 | |
mbed_official | 30:91c1d09ada54 | 34 | __IO uint32_t *reg = (__IO uint32_t*)(LPC_IOCON_BASE + offset); |
mbed_official | 30:91c1d09ada54 | 35 | uint32_t tmp = *reg; |
mbed_official | 30:91c1d09ada54 | 36 | |
mbed_official | 30:91c1d09ada54 | 37 | // pin mode bits: [4:3] -> 11000 = (0x3 << 3) |
mbed_official | 30:91c1d09ada54 | 38 | tmp &= ~(0x3 << 3); |
mbed_official | 30:91c1d09ada54 | 39 | tmp |= (mode & 0x3) << 3; |
mbed_official | 30:91c1d09ada54 | 40 | |
mbed_official | 30:91c1d09ada54 | 41 | // drain |
mbed_official | 30:91c1d09ada54 | 42 | tmp &= ~(0x1 << 10); |
mbed_official | 30:91c1d09ada54 | 43 | tmp |= drain << 10; |
mbed_official | 30:91c1d09ada54 | 44 | |
mbed_official | 30:91c1d09ada54 | 45 | *reg = tmp; |
mbed_official | 30:91c1d09ada54 | 46 | } |