ON Semiconductor / mbed-os

5.2.1 - Updated I2C files

Dependents:   mbed-TFT-example-NCS36510 mbed-Accelerometer-example-NCS36510 mbed-Accelerometer-example-NCS36510

targets/TARGET_NXP/TARGET_LPC11XX_11CXX/pinmap.c@0:098463de4c5d, 2017-01-25 (annotated)

Committer:
group-onsemi
Date:
Wed Jan 25 20:34:15 2017 +0000
Revision:
0:098463de4c5d
Initial commit

Who changed what in which revision?

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group-onsemi 0:098463de4c5d 1 /* mbed Microcontroller Library
group-onsemi 0:098463de4c5d 2 * Copyright (c) 2006-2013 ARM Limited
group-onsemi 0:098463de4c5d 3 *
group-onsemi 0:098463de4c5d 4 * Licensed under the Apache License, Version 2.0 (the "License");
group-onsemi 0:098463de4c5d 5 * you may not use this file except in compliance with the License.
group-onsemi 0:098463de4c5d 6 * You may obtain a copy of the License at
group-onsemi 0:098463de4c5d 7 *
group-onsemi 0:098463de4c5d 8 * http://www.apache.org/licenses/LICENSE-2.0
group-onsemi 0:098463de4c5d 9 *
group-onsemi 0:098463de4c5d 10 * Unless required by applicable law or agreed to in writing, software
group-onsemi 0:098463de4c5d 11 * distributed under the License is distributed on an "AS IS" BASIS,
group-onsemi 0:098463de4c5d 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
group-onsemi 0:098463de4c5d 13 * See the License for the specific language governing permissions and
group-onsemi 0:098463de4c5d 14 * limitations under the License.
group-onsemi 0:098463de4c5d 15 */
group-onsemi 0:098463de4c5d 16 #include "mbed_assert.h"
group-onsemi 0:098463de4c5d 17 #include "pinmap.h"
group-onsemi 0:098463de4c5d 18 #include "mbed_error.h"
group-onsemi 0:098463de4c5d 19
group-onsemi 0:098463de4c5d 20 void pin_function(PinName pin, int function) {
group-onsemi 0:098463de4c5d 21 MBED_ASSERT(pin != (PinName)NC);
group-onsemi 0:098463de4c5d 22 uint32_t offset = (uint32_t)pin & 0xff;
group-onsemi 0:098463de4c5d 23 __IO uint32_t *reg = (__IO uint32_t*)(LPC_IOCON_BASE + offset);
group-onsemi 0:098463de4c5d 24
group-onsemi 0:098463de4c5d 25 // pin function bits: [2:0] -> 111 = (0x7)
group-onsemi 0:098463de4c5d 26 *reg = (*reg & ~0x7) | (function & 0x7);
group-onsemi 0:098463de4c5d 27 }
group-onsemi 0:098463de4c5d 28
group-onsemi 0:098463de4c5d 29 void pin_mode(PinName pin, PinMode mode) {
group-onsemi 0:098463de4c5d 30 MBED_ASSERT(pin != (PinName)NC);
group-onsemi 0:098463de4c5d 31 uint32_t offset = (uint32_t)pin & 0xff;
group-onsemi 0:098463de4c5d 32 uint32_t drain = ((uint32_t)mode & (uint32_t)OpenDrain) >> 2;
group-onsemi 0:098463de4c5d 33
group-onsemi 0:098463de4c5d 34 __IO uint32_t *reg = (__IO uint32_t*)(LPC_IOCON_BASE + offset);
group-onsemi 0:098463de4c5d 35 uint32_t tmp = *reg;
group-onsemi 0:098463de4c5d 36
group-onsemi 0:098463de4c5d 37 // pin mode bits: [4:3] -> 11000 = (0x3 << 3)
group-onsemi 0:098463de4c5d 38 tmp &= ~(0x3 << 3);
group-onsemi 0:098463de4c5d 39 tmp |= (mode & 0x3) << 3;
group-onsemi 0:098463de4c5d 40
group-onsemi 0:098463de4c5d 41 // drain
group-onsemi 0:098463de4c5d 42 tmp &= ~(0x1 << 10);
group-onsemi 0:098463de4c5d 43 tmp |= drain << 10;
group-onsemi 0:098463de4c5d 44
group-onsemi 0:098463de4c5d 45 *reg = tmp;
group-onsemi 0:098463de4c5d 46 }