mbed library sources modified for open wear
Dependents: openwear-lifelogger-example
Fork of mbed-src by
targets/hal/TARGET_NXP/TARGET_LPC13XX/pinmap.c
- Committer:
- bogdanm
- Date:
- 2013-08-05
- Revision:
- 13:0645d8841f51
- Parent:
- vendor/NXP/LPC11U24/hal/pinmap.c@ 10:3bc89ef62ce7
- Child:
- 227:7bd0639b8911
File content as of revision 13:0645d8841f51:
/* mbed Microcontroller Library * Copyright (c) 2006-2013 ARM Limited * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "pinmap.h" #include "error.h" #define LPC_IOCON0_BASE (LPC_IOCON_BASE) #define LPC_IOCON1_BASE (LPC_IOCON_BASE + 0x60) void pin_function(PinName pin, int function) { if (pin == (uint32_t)NC) return; uint32_t pin_number = (uint32_t)pin; __IO uint32_t *reg = (pin_number < 32) ? (__IO uint32_t*)(LPC_IOCON0_BASE + 4 * pin_number) : (__IO uint32_t*)(LPC_IOCON1_BASE + 4 * (pin_number - 32)); // pin function bits: [2:0] -> 111 = (0x7) *reg = (*reg & ~0x7) | (function & 0x7); } void pin_mode(PinName pin, PinMode mode) { if (pin == (uint32_t)NC) { return; } uint32_t pin_number = (uint32_t)pin; uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2; __IO uint32_t *reg = (pin_number < 32) ? (__IO uint32_t*)(LPC_IOCON0_BASE + 4 * pin_number) : (__IO uint32_t*)(LPC_IOCON1_BASE + 4 * (pin_number - 32)); uint32_t tmp = *reg; // pin mode bits: [4:3] -> 11000 = (0x3 << 3) tmp &= ~(0x3 << 3); tmp |= (mode & 0x3) << 3; // drain tmp &= ~(0x1 << 10); tmp |= drain << 10; *reg = tmp; }