Ermanno Brusadin / mbed

mbed library sources

Dependents:   FRDM-KL46Z_LCD_Test FRDM-KL46Z_LCD_Test FRDM-KL46Z_Plantilla FRDM-KL46Z_Plantilla ... more

targets/hal/TARGET_NXP/TARGET_LPC23XX/pinmap.c@0:6bc4ac881c8e, 2016-07-28 (annotated)

Committer:
ebrus
Date:
Thu Jul 28 15:56:34 2016 +0000
Revision:
0:6bc4ac881c8e
1;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ebrus 0:6bc4ac881c8e 1 /* mbed Microcontroller Library
ebrus 0:6bc4ac881c8e 2 * Copyright (c) 2006-2013 ARM Limited
ebrus 0:6bc4ac881c8e 3 *
ebrus 0:6bc4ac881c8e 4 * Licensed under the Apache License, Version 2.0 (the "License");
ebrus 0:6bc4ac881c8e 5 * you may not use this file except in compliance with the License.
ebrus 0:6bc4ac881c8e 6 * You may obtain a copy of the License at
ebrus 0:6bc4ac881c8e 7 *
ebrus 0:6bc4ac881c8e 8 * http://www.apache.org/licenses/LICENSE-2.0
ebrus 0:6bc4ac881c8e 9 *
ebrus 0:6bc4ac881c8e 10 * Unless required by applicable law or agreed to in writing, software
ebrus 0:6bc4ac881c8e 11 * distributed under the License is distributed on an "AS IS" BASIS,
ebrus 0:6bc4ac881c8e 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ebrus 0:6bc4ac881c8e 13 * See the License for the specific language governing permissions and
ebrus 0:6bc4ac881c8e 14 * limitations under the License.
ebrus 0:6bc4ac881c8e 15 */
ebrus 0:6bc4ac881c8e 16 #include "mbed_assert.h"
ebrus 0:6bc4ac881c8e 17 #include "pinmap.h"
ebrus 0:6bc4ac881c8e 18 #include "mbed_error.h"
ebrus 0:6bc4ac881c8e 19
ebrus 0:6bc4ac881c8e 20 void pin_function(PinName pin, int function) {
ebrus 0:6bc4ac881c8e 21 MBED_ASSERT(pin != (PinName)NC);
ebrus 0:6bc4ac881c8e 22
ebrus 0:6bc4ac881c8e 23 uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0;
ebrus 0:6bc4ac881c8e 24 int index = pin_number >> 4;
ebrus 0:6bc4ac881c8e 25 int offset = (pin_number & 0xF) << 1;
ebrus 0:6bc4ac881c8e 26
ebrus 0:6bc4ac881c8e 27 PINCONARRAY->PINSEL[index] &= ~(0x3 << offset);
ebrus 0:6bc4ac881c8e 28 PINCONARRAY->PINSEL[index] |= function << offset;
ebrus 0:6bc4ac881c8e 29 }
ebrus 0:6bc4ac881c8e 30
ebrus 0:6bc4ac881c8e 31 void pin_mode(PinName pin, PinMode mode) {
ebrus 0:6bc4ac881c8e 32 MBED_ASSERT((pin != (PinName)NC) && (mode != OpenDrain));
ebrus 0:6bc4ac881c8e 33
ebrus 0:6bc4ac881c8e 34 uint32_t pin_number = (uint32_t)pin - (uint32_t)P0_0;
ebrus 0:6bc4ac881c8e 35 int index = pin_number >> 5;
ebrus 0:6bc4ac881c8e 36 int offset = pin_number & 0x1F;
ebrus 0:6bc4ac881c8e 37 uint32_t drain = ((uint32_t) mode & (uint32_t) OpenDrain) >> 2;
ebrus 0:6bc4ac881c8e 38
ebrus 0:6bc4ac881c8e 39 if (!drain) {
ebrus 0:6bc4ac881c8e 40 index = pin_number >> 4;
ebrus 0:6bc4ac881c8e 41 offset = (pin_number & 0xF) << 1;
ebrus 0:6bc4ac881c8e 42
ebrus 0:6bc4ac881c8e 43 PINCONARRAY->PINMODE[index] &= ~(0x3 << offset);
ebrus 0:6bc4ac881c8e 44 PINCONARRAY->PINMODE[index] |= (uint32_t)mode << offset;
ebrus 0:6bc4ac881c8e 45 }
ebrus 0:6bc4ac881c8e 46 }