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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_STM/TARGET_STM32F4XX/pinmap.c@268:402bcc0c870b, 2014-07-29 (annotated)

Committer:
mbed_official
Date:
Tue Jul 29 19:00:07 2014 +0100
Revision:
268:402bcc0c870b
Parent:
251:de9a1e4ffd79
Child:
285:31249416b6f9
Synchronized with git revision 490d1a6606b3138f165c5edf2f2370ca616587c0



Full URL: https://github.com/mbedmicro/mbed/commit/490d1a6606b3138f165c5edf2f2370ca616587c0/



[LPC1114] Sleep fix + some device.h settings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 20:4263a77256ae 1 /* mbed Microcontroller Library
bogdanm 20:4263a77256ae 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 20:4263a77256ae 3 *
bogdanm 20:4263a77256ae 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 20:4263a77256ae 5 * you may not use this file except in compliance with the License.
bogdanm 20:4263a77256ae 6 * You may obtain a copy of the License at
bogdanm 20:4263a77256ae 7 *
bogdanm 20:4263a77256ae 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 20:4263a77256ae 9 *
bogdanm 20:4263a77256ae 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 20:4263a77256ae 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 20:4263a77256ae 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 20:4263a77256ae 13 * See the License for the specific language governing permissions and
bogdanm 20:4263a77256ae 14 * limitations under the License.
bogdanm 20:4263a77256ae 15 */
mbed_official 227:7bd0639b8911 16 #include "mbed_assert.h"
bogdanm 20:4263a77256ae 17 #include "pinmap.h"
mbed_official 251:de9a1e4ffd79 18 #include "error.h"
bogdanm 20:4263a77256ae 19
bogdanm 20:4263a77256ae 20 /**
bogdanm 20:4263a77256ae 21 * Set the pin into input, output, alternate function or analog mode
bogdanm 20:4263a77256ae 22 */
bogdanm 20:4263a77256ae 23 void pin_function(PinName pin, int data) {
mbed_official 227:7bd0639b8911 24 MBED_ASSERT(pin != (PinName)NC);
bogdanm 20:4263a77256ae 25
bogdanm 20:4263a77256ae 26 int mode = STM_PIN_MODE(data);
bogdanm 20:4263a77256ae 27 int func = STM_PIN_FUNC(data);
bogdanm 20:4263a77256ae 28
bogdanm 20:4263a77256ae 29 uint32_t pin_number = (uint32_t)pin;
bogdanm 20:4263a77256ae 30 int port_index = pin_number >> 4;
bogdanm 20:4263a77256ae 31 int pin_index = (pin_number & 0xF);
bogdanm 20:4263a77256ae 32 GPIO_TypeDef * gpio = ((GPIO_TypeDef *) (GPIOA_BASE + (port_index << 10)));
bogdanm 20:4263a77256ae 33
bogdanm 20:4263a77256ae 34 // MODE
bogdanm 20:4263a77256ae 35 int offset = pin_index << 1;
bogdanm 20:4263a77256ae 36 gpio->MODER &= ~(0x3 << offset);
bogdanm 20:4263a77256ae 37 gpio->MODER |= mode << offset;
bogdanm 20:4263a77256ae 38
bogdanm 20:4263a77256ae 39 // Set high-speed mode
bogdanm 20:4263a77256ae 40 gpio->OSPEEDR &= ~(0x3 << offset);
bogdanm 20:4263a77256ae 41 gpio->OSPEEDR |= (0x2 << offset);
bogdanm 20:4263a77256ae 42
bogdanm 20:4263a77256ae 43 // FUNCTION
bogdanm 20:4263a77256ae 44 // Bottom seven pins are in AFR[0], top seven in AFR[1]
bogdanm 20:4263a77256ae 45 offset = (pin_index & 0x7) << 2;
bogdanm 20:4263a77256ae 46 if (pin_index <= 0x7) {
bogdanm 20:4263a77256ae 47 gpio->AFR[0] &= ~(0xF << offset);
bogdanm 20:4263a77256ae 48 gpio->AFR[0] |= func << offset;
bogdanm 20:4263a77256ae 49 }
bogdanm 20:4263a77256ae 50 else {
bogdanm 20:4263a77256ae 51 gpio->AFR[1] &= ~(0xF << offset);
bogdanm 20:4263a77256ae 52 gpio->AFR[1] |= func << offset;
bogdanm 20:4263a77256ae 53 }
bogdanm 20:4263a77256ae 54 }
bogdanm 20:4263a77256ae 55
bogdanm 20:4263a77256ae 56 void pin_mode(PinName pin, PinMode mode) {
mbed_official 227:7bd0639b8911 57 MBED_ASSERT(pin != (PinName)NC);
bogdanm 20:4263a77256ae 58
bogdanm 20:4263a77256ae 59 uint32_t pin_number = (uint32_t)pin;
bogdanm 20:4263a77256ae 60 int port_index = pin_number >> 4;
bogdanm 20:4263a77256ae 61 int pin_index = (pin_number & 0xF);
bogdanm 20:4263a77256ae 62 int offset = pin_index << 1;
bogdanm 20:4263a77256ae 63
bogdanm 20:4263a77256ae 64 GPIO_TypeDef * gpio = ((GPIO_TypeDef *) (GPIOA_BASE + (port_index << 10)));
bogdanm 20:4263a77256ae 65 if (mode == OpenDrain) {
bogdanm 20:4263a77256ae 66 gpio->OTYPER |= 1 << pin_index;
bogdanm 20:4263a77256ae 67 }
bogdanm 20:4263a77256ae 68 else {
bogdanm 20:4263a77256ae 69 gpio->OTYPER &= ~(1 << pin_index);
bogdanm 20:4263a77256ae 70 gpio->PUPDR &= ~(0x3 << offset);
bogdanm 20:4263a77256ae 71 gpio->PUPDR |= mode << offset;
bogdanm 20:4263a77256ae 72 }
bogdanm 20:4263a77256ae 73 }
bogdanm 20:4263a77256ae 74