Nothing Special / mbed-STM32F103C8_org

Modification of Mbed-dev library for LQFP48 package microcontrollers: STM32F103C8 (STM32F103C8T6) and STM32F103CB (STM32F103CBT6) (Bluepill boards, Maple mini etc. )

Fork of mbed-dev by mbed official

Warning!

This library is unable to work due to huge changes in the mbed toolchain. Do not use with mbed online!

New wersion:

Import librarymbed-STM32F103C8

Modification of Mbed-dev library for LQFP48 package microcontrollers: STM32F103C8 (STM32F103C8T6) and STM32F103CB (STM32F103CBT6) (Bluepill boards, Maple mini etc. )

Last commit 27 Apr 2017 by Nothing Special




Library for STM32F103C8 (Bluepill boards etc.).
Use this instead of mbed library.
This library allows the size of the code in the FLASH up to 128kB. Therefore, code also runs on microcontrollers STM32F103CB (eg. Maple mini).
But in the case of STM32F103C8, check the size of the resulting code would not exceed 64kB.

To compile a program with this library, use NUCLEO-F103RB as the target name. !

Changes:

  • Corrected initialization of the HSE clock (mbed bug), allowing the use of on-board xtal (8MHz).(1)
  • Additionally, it also set USB clock (48Mhz).(2)
  • Definitions of pins and peripherals adjusted to LQFP48 case.
  • Board led LED1 is now PC_13 (3)
  • USER_BUTTON is now PC_14 (4)

notes
(1) - In case 8MHz xtal on board, CPU frequency is 72MHz. Without xtal is 64MHz.
(2) - Using the USB interface is only possible if STM32 is clocking by on-board 8MHz xtal or external clock signal 8MHz on the OSC_IN pin.
(3) - On Bluepill board led operation is reversed, i.e. 0 - led on, 1 - led off.
(4) - Bluepill board has no real user button

api/PortInOut.h

Committer:
mega64
Date:
2016-08-29
Revision:
145:54b3c5994df6
Parent:
0:9b334a45a8ff

File content as of revision 145:54b3c5994df6:

/* mbed Microcontroller Library
 * Copyright (c) 2006-2013 ARM Limited
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef MBED_PORTINOUT_H
#define MBED_PORTINOUT_H

#include "platform.h"

#if DEVICE_PORTINOUT

#include "port_api.h"

namespace mbed {

/** A multiple pin digital in/out used to set/read multiple bi-directional pins
 */
class PortInOut {
public:

    /** Create an PortInOut, connected to the specified port
     *
     *  @param port Port to connect to (Port0-Port5)
     *  @param mask A bitmask to identify which bits in the port should be included (0 - ignore)
     */
    PortInOut(PortName port, int mask = 0xFFFFFFFF) {
        port_init(&_port, port, mask, PIN_INPUT);
    }

    /** Write the value to the output port
     *
     *  @param value An integer specifying a bit to write for every corresponding port pin
     */
    void write(int value) {
        port_write(&_port, value);
    }

    /** Read the value currently output on the port
     *
     *  @returns
     *    An integer with each bit corresponding to associated port pin setting
     */
    int read() {
        return port_read(&_port);
    }

    /** Set as an output
     */
    void output() {
        port_dir(&_port, PIN_OUTPUT);
    }

    /** Set as an input
     */
    void input() {
        port_dir(&_port, PIN_INPUT);
    }

    /** Set the input pin mode
     *
     *  @param mode PullUp, PullDown, PullNone, OpenDrain
     */
    void mode(PinMode mode) {
        port_mode(&_port, mode);
    }

    /** A shorthand for write()
     */
    PortInOut& operator= (int value) {
        write(value);
        return *this;
    }

    PortInOut& operator= (PortInOut& rhs) {
        write(rhs.read());
        return *this;
    }

    /** A shorthand for read()
     */
    operator int() {
        return read();
    }

private:
    port_t _port;
};

} // namespace mbed

#endif

#endif