Nick Zhou / mbed-src-ST-demo

mbed library sources change for ST sensors and ST BLE

Fork of mbed-src by mbed official

targets/hal/TARGET_NXP/TARGET_LPC176X/pinmap.c@636:83ea0d2b909b, 2016-04-14 (annotated)

Committer:
NickZhouARM
Date:
Thu Apr 14 07:07:44 2016 +0000
Revision:
636:83ea0d2b909b
Parent:
285:31249416b6f9 
Working version for ST BLE + Sensors

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 */
mbed_official 227:7bd0639b8911 16 #include "mbed_assert.h"
emilmont 10:3bc89ef62ce7 17 #include "pinmap.h"
mbed_official 285:31249416b6f9 18 #include "mbed_error.h"
emilmont 10:3bc89ef62ce7 19
emilmont 10:3bc89ef62ce7 20 void pin_function(PinName pin, int function) {
mbed_official 227:7bd0639b8911 21 MBED_ASSERT(pin != (PinName)NC);
mbed_official 227:7bd0639b8911 22
emilmont 10:3bc89ef62ce7 23 uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0;
emilmont 10:3bc89ef62ce7 24 int index = pin_number >> 4;
emilmont 10:3bc89ef62ce7 25 int offset = (pin_number & 0xF) << 1;
emilmont 10:3bc89ef62ce7 26
emilmont 10:3bc89ef62ce7 27 PINCONARRAY->PINSEL[index] &= ~(0x3 << offset);
emilmont 10:3bc89ef62ce7 28 PINCONARRAY->PINSEL[index] |= function << offset;
emilmont 10:3bc89ef62ce7 29 }
emilmont 10:3bc89ef62ce7 30
emilmont 10:3bc89ef62ce7 31 void pin_mode(PinName pin, PinMode mode) {
mbed_official 227:7bd0639b8911 32 MBED_ASSERT(pin != (PinName)NC);
emilmont 10:3bc89ef62ce7 33
emilmont 10:3bc89ef62ce7 34 uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0;
emilmont 10:3bc89ef62ce7 35 int index = pin_number >> 5;
emilmont 10:3bc89ef62ce7 36 int offset = pin_number & 0x1F;
emilmont 10:3bc89ef62ce7 37 uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2;
emilmont 10:3bc89ef62ce7 38
emilmont 10:3bc89ef62ce7 39 PINCONARRAY->PINMODE_OD[index] &= ~(drain << offset);
emilmont 10:3bc89ef62ce7 40 PINCONARRAY->PINMODE_OD[index] |= drain << offset;
emilmont 10:3bc89ef62ce7 41
emilmont 10:3bc89ef62ce7 42 if (!drain) {
emilmont 10:3bc89ef62ce7 43 index = pin_number >> 4;
emilmont 10:3bc89ef62ce7 44 offset = (pin_number & 0xF) << 1;
emilmont 10:3bc89ef62ce7 45
emilmont 10:3bc89ef62ce7 46 PINCONARRAY->PINMODE[index] &= ~(0x3 << offset);
emilmont 10:3bc89ef62ce7 47 PINCONARRAY->PINMODE[index] |= (uint32_t)mode << offset;
emilmont 10:3bc89ef62ce7 48 }
emilmont 10:3bc89ef62ce7 49 }