mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_NXP/TARGET_LPC15XX/pinmap.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
149:156823d33999 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 * Copyright (c) 2006-2013 ARM Limited
<> 144:ef7eb2e8f9f7 3 *
<> 144:ef7eb2e8f9f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
<> 144:ef7eb2e8f9f7 5 * you may not use this file except in compliance with the License.
<> 144:ef7eb2e8f9f7 6 * You may obtain a copy of the License at
<> 144:ef7eb2e8f9f7 7 *
<> 144:ef7eb2e8f9f7 8 * http://www.apache.org/licenses/LICENSE-2.0
<> 144:ef7eb2e8f9f7 9 *
<> 144:ef7eb2e8f9f7 10 * Unless required by applicable law or agreed to in writing, software
<> 144:ef7eb2e8f9f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
<> 144:ef7eb2e8f9f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 144:ef7eb2e8f9f7 13 * See the License for the specific language governing permissions and
<> 144:ef7eb2e8f9f7 14 * limitations under the License.
<> 144:ef7eb2e8f9f7 15 */
<> 144:ef7eb2e8f9f7 16 #include "mbed_assert.h"
<> 144:ef7eb2e8f9f7 17 #include "pinmap.h"
<> 144:ef7eb2e8f9f7 18 #include "mbed_error.h"
<> 144:ef7eb2e8f9f7 19
<> 144:ef7eb2e8f9f7 20 void pin_function(PinName pin, int function) {
<> 144:ef7eb2e8f9f7 21 }
<> 144:ef7eb2e8f9f7 22
<> 144:ef7eb2e8f9f7 23 void pin_mode(PinName pin, PinMode mode) {
<> 144:ef7eb2e8f9f7 24 MBED_ASSERT(pin != (PinName)NC);
<> 144:ef7eb2e8f9f7 25
<> 144:ef7eb2e8f9f7 26 if ((pin == P0_22) || (pin == P0_23)) {
<> 144:ef7eb2e8f9f7 27 // The true open-drain pins PIO0_22 and PIO0_23 can be configured for different I2C-bus speeds.
<> 144:ef7eb2e8f9f7 28 return;
<> 144:ef7eb2e8f9f7 29 }
<> 144:ef7eb2e8f9f7 30
<> 144:ef7eb2e8f9f7 31 __IO uint32_t *reg = (__IO uint32_t*)(LPC_IOCON_BASE + (pin * 4));
<> 144:ef7eb2e8f9f7 32
<> 144:ef7eb2e8f9f7 33 if (mode == OpenDrain) {
<> 144:ef7eb2e8f9f7 34 *reg |= (1 << 10);
<> 144:ef7eb2e8f9f7 35 } else {
<> 144:ef7eb2e8f9f7 36 uint32_t tmp = *reg;
<> 144:ef7eb2e8f9f7 37 tmp &= ~(0x3 << 3);
<> 144:ef7eb2e8f9f7 38 tmp |= (mode & 0x3) << 3;
<> 144:ef7eb2e8f9f7 39 *reg = tmp;
<> 144:ef7eb2e8f9f7 40 }
<> 144:ef7eb2e8f9f7 41 }