Nothing Special / mbed-STM32F103C8_org

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

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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/Timer.h@145:54b3c5994df6, 2016-08-29 (annotated)

Committer:
mega64
Date:
Mon Aug 29 01:00:12 2016 +0000
Revision:
145:54b3c5994df6
Parent:
0:9b334a45a8ff 
Change peripherals and pins definitions from LQFP64 to LQFP48 case.;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library
bogdanm 0:9b334a45a8ff 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 0:9b334a45a8ff 3 *
bogdanm 0:9b334a45a8ff 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 0:9b334a45a8ff 5 * you may not use this file except in compliance with the License.
bogdanm 0:9b334a45a8ff 6 * You may obtain a copy of the License at
bogdanm 0:9b334a45a8ff 7 *
bogdanm 0:9b334a45a8ff 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 0:9b334a45a8ff 9 *
bogdanm 0:9b334a45a8ff 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 0:9b334a45a8ff 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 0:9b334a45a8ff 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 0:9b334a45a8ff 13 * See the License for the specific language governing permissions and
bogdanm 0:9b334a45a8ff 14 * limitations under the License.
bogdanm 0:9b334a45a8ff 15 */
bogdanm 0:9b334a45a8ff 16 #ifndef MBED_TIMER_H
bogdanm 0:9b334a45a8ff 17 #define MBED_TIMER_H
bogdanm 0:9b334a45a8ff 18
bogdanm 0:9b334a45a8ff 19 #include "platform.h"
bogdanm 0:9b334a45a8ff 20 #include "ticker_api.h"
bogdanm 0:9b334a45a8ff 21
bogdanm 0:9b334a45a8ff 22 namespace mbed {
bogdanm 0:9b334a45a8ff 23
bogdanm 0:9b334a45a8ff 24 /** A general purpose timer
bogdanm 0:9b334a45a8ff 25 *
bogdanm 0:9b334a45a8ff 26 * Example:
bogdanm 0:9b334a45a8ff 27 * @code
bogdanm 0:9b334a45a8ff 28 * // Count the time to toggle a LED
bogdanm 0:9b334a45a8ff 29 *
bogdanm 0:9b334a45a8ff 30 * #include "mbed.h"
bogdanm 0:9b334a45a8ff 31 *
bogdanm 0:9b334a45a8ff 32 * Timer timer;
bogdanm 0:9b334a45a8ff 33 * DigitalOut led(LED1);
bogdanm 0:9b334a45a8ff 34 * int begin, end;
bogdanm 0:9b334a45a8ff 35 *
bogdanm 0:9b334a45a8ff 36 * int main() {
bogdanm 0:9b334a45a8ff 37 * timer.start();
bogdanm 0:9b334a45a8ff 38 * begin = timer.read_us();
bogdanm 0:9b334a45a8ff 39 * led = !led;
bogdanm 0:9b334a45a8ff 40 * end = timer.read_us();
bogdanm 0:9b334a45a8ff 41 * printf("Toggle the led takes %d us", end - begin);
bogdanm 0:9b334a45a8ff 42 * }
bogdanm 0:9b334a45a8ff 43 * @endcode
bogdanm 0:9b334a45a8ff 44 */
bogdanm 0:9b334a45a8ff 45 class Timer {
bogdanm 0:9b334a45a8ff 46
bogdanm 0:9b334a45a8ff 47 public:
bogdanm 0:9b334a45a8ff 48 Timer();
bogdanm 0:9b334a45a8ff 49 Timer(const ticker_data_t *data);
bogdanm 0:9b334a45a8ff 50
bogdanm 0:9b334a45a8ff 51 /** Start the timer
bogdanm 0:9b334a45a8ff 52 */
bogdanm 0:9b334a45a8ff 53 void start();
bogdanm 0:9b334a45a8ff 54
bogdanm 0:9b334a45a8ff 55 /** Stop the timer
bogdanm 0:9b334a45a8ff 56 */
bogdanm 0:9b334a45a8ff 57 void stop();
bogdanm 0:9b334a45a8ff 58
bogdanm 0:9b334a45a8ff 59 /** Reset the timer to 0.
bogdanm 0:9b334a45a8ff 60 *
bogdanm 0:9b334a45a8ff 61 * If it was already counting, it will continue
bogdanm 0:9b334a45a8ff 62 */
bogdanm 0:9b334a45a8ff 63 void reset();
bogdanm 0:9b334a45a8ff 64
bogdanm 0:9b334a45a8ff 65 /** Get the time passed in seconds
bogdanm 0:9b334a45a8ff 66 */
bogdanm 0:9b334a45a8ff 67 float read();
bogdanm 0:9b334a45a8ff 68
bogdanm 0:9b334a45a8ff 69 /** Get the time passed in mili-seconds
bogdanm 0:9b334a45a8ff 70 */
bogdanm 0:9b334a45a8ff 71 int read_ms();
bogdanm 0:9b334a45a8ff 72
bogdanm 0:9b334a45a8ff 73 /** Get the time passed in micro-seconds
bogdanm 0:9b334a45a8ff 74 */
bogdanm 0:9b334a45a8ff 75 int read_us();
bogdanm 0:9b334a45a8ff 76
bogdanm 0:9b334a45a8ff 77 #ifdef MBED_OPERATORS
bogdanm 0:9b334a45a8ff 78 operator float();
bogdanm 0:9b334a45a8ff 79 #endif
bogdanm 0:9b334a45a8ff 80
bogdanm 0:9b334a45a8ff 81 protected:
bogdanm 0:9b334a45a8ff 82 int slicetime();
bogdanm 0:9b334a45a8ff 83 int _running; // whether the timer is running
bogdanm 0:9b334a45a8ff 84 unsigned int _start; // the start time of the latest slice
bogdanm 0:9b334a45a8ff 85 int _time; // any accumulated time from previous slices
bogdanm 0:9b334a45a8ff 86 const ticker_data_t *_ticker_data;
bogdanm 0:9b334a45a8ff 87 };
bogdanm 0:9b334a45a8ff 88
bogdanm 0:9b334a45a8ff 89 } // namespace mbed
bogdanm 0:9b334a45a8ff 90
bogdanm 0:9b334a45a8ff 91 #endif