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_LPC81X/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 __IO uint32_t* IOCON_REGISTERS[18] = {
ebrus 0:6bc4ac881c8e 21 &LPC_IOCON->PIO0_0 , &LPC_IOCON->PIO0_1 , &LPC_IOCON->PIO0_2 ,
ebrus 0:6bc4ac881c8e 22 &LPC_IOCON->PIO0_3 , &LPC_IOCON->PIO0_4 , &LPC_IOCON->PIO0_5 ,
ebrus 0:6bc4ac881c8e 23 &LPC_IOCON->PIO0_6 , &LPC_IOCON->PIO0_7 , &LPC_IOCON->PIO0_8 ,
ebrus 0:6bc4ac881c8e 24 &LPC_IOCON->PIO0_9 , &LPC_IOCON->PIO0_10, &LPC_IOCON->PIO0_11,
ebrus 0:6bc4ac881c8e 25 &LPC_IOCON->PIO0_12, &LPC_IOCON->PIO0_13, &LPC_IOCON->PIO0_14,
ebrus 0:6bc4ac881c8e 26 &LPC_IOCON->PIO0_15, &LPC_IOCON->PIO0_16, &LPC_IOCON->PIO0_17,
ebrus 0:6bc4ac881c8e 27 };
ebrus 0:6bc4ac881c8e 28
ebrus 0:6bc4ac881c8e 29 void pin_function(PinName pin, int function) {
ebrus 0:6bc4ac881c8e 30
ebrus 0:6bc4ac881c8e 31 }
ebrus 0:6bc4ac881c8e 32
ebrus 0:6bc4ac881c8e 33 void pin_mode(PinName pin, PinMode mode) {
ebrus 0:6bc4ac881c8e 34 MBED_ASSERT(pin != (PinName)NC);
ebrus 0:6bc4ac881c8e 35
ebrus 0:6bc4ac881c8e 36 if ((pin == 10) || (pin == 11)) {
ebrus 0:6bc4ac881c8e 37 // True open-drain pins can be configured for different I2C-bus speeds
ebrus 0:6bc4ac881c8e 38 return;
ebrus 0:6bc4ac881c8e 39 }
ebrus 0:6bc4ac881c8e 40
ebrus 0:6bc4ac881c8e 41 __IO uint32_t *reg = IOCON_REGISTERS[pin];
ebrus 0:6bc4ac881c8e 42
ebrus 0:6bc4ac881c8e 43 if (mode == OpenDrain) {
ebrus 0:6bc4ac881c8e 44 *reg |= (1 << 10);
ebrus 0:6bc4ac881c8e 45 } else {
ebrus 0:6bc4ac881c8e 46 uint32_t tmp = *reg;
ebrus 0:6bc4ac881c8e 47 tmp &= ~(0x3 << 3);
ebrus 0:6bc4ac881c8e 48 tmp |= (mode & 0x3) << 3;
ebrus 0:6bc4ac881c8e 49 *reg = tmp;
ebrus 0:6bc4ac881c8e 50 }
ebrus 0:6bc4ac881c8e 51 }