Nothing Special / mbed-STM32F103C8

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

Fork of mbed-STM32F103C8_org 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 + crystal clock (mbed permanent 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)

    Now the library is complete rebuilt based on mbed-dev v160 (and not yet fully tested).

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

Information

After export to SW4STM (AC6):

  • add line #include "mbed_config.h" in files Serial.h and RawSerial.h
  • in project properties change Optimisation Level to Optimise for size (-Os)

drivers/Ticker.h@148:8b0b02bf146f, 2017-04-27 (annotated)

Committer:
mega64
Date:
Thu Apr 27 23:56:38 2017 +0000
Revision:
148:8b0b02bf146f
Parent:
146:03e976389d16 
Remove unnecessary folders

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mega64 146:03e976389d16 1 /* mbed Microcontroller Library
mega64 146:03e976389d16 2 * Copyright (c) 2006-2013 ARM Limited
mega64 146:03e976389d16 3 *
mega64 146:03e976389d16 4 * Licensed under the Apache License, Version 2.0 (the "License");
mega64 146:03e976389d16 5 * you may not use this file except in compliance with the License.
mega64 146:03e976389d16 6 * You may obtain a copy of the License at
mega64 146:03e976389d16 7 *
mega64 146:03e976389d16 8 * http://www.apache.org/licenses/LICENSE-2.0
mega64 146:03e976389d16 9 *
mega64 146:03e976389d16 10 * Unless required by applicable law or agreed to in writing, software
mega64 146:03e976389d16 11 * distributed under the License is distributed on an "AS IS" BASIS,
mega64 146:03e976389d16 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mega64 146:03e976389d16 13 * See the License for the specific language governing permissions and
mega64 146:03e976389d16 14 * limitations under the License.
mega64 146:03e976389d16 15 */
mega64 146:03e976389d16 16 #ifndef MBED_TICKER_H
mega64 146:03e976389d16 17 #define MBED_TICKER_H
mega64 146:03e976389d16 18
mega64 146:03e976389d16 19 #include "drivers/TimerEvent.h"
mega64 146:03e976389d16 20 #include "platform/Callback.h"
mega64 146:03e976389d16 21 #include "platform/mbed_toolchain.h"
mega64 146:03e976389d16 22
mega64 146:03e976389d16 23 namespace mbed {
mega64 146:03e976389d16 24 /** \addtogroup drivers */
mega64 146:03e976389d16 25 /** @{*/
mega64 146:03e976389d16 26
mega64 146:03e976389d16 27 /** A Ticker is used to call a function at a recurring interval
mega64 146:03e976389d16 28 *
mega64 146:03e976389d16 29 * You can use as many seperate Ticker objects as you require.
mega64 146:03e976389d16 30 *
mega64 146:03e976389d16 31 * @Note Synchronization level: Interrupt safe
mega64 146:03e976389d16 32 *
mega64 146:03e976389d16 33 * Example:
mega64 146:03e976389d16 34 * @code
mega64 146:03e976389d16 35 * // Toggle the blinking led after 5 seconds
mega64 146:03e976389d16 36 *
mega64 146:03e976389d16 37 * #include "mbed.h"
mega64 146:03e976389d16 38 *
mega64 146:03e976389d16 39 * Ticker timer;
mega64 146:03e976389d16 40 * DigitalOut led1(LED1);
mega64 146:03e976389d16 41 * DigitalOut led2(LED2);
mega64 146:03e976389d16 42 *
mega64 146:03e976389d16 43 * int flip = 0;
mega64 146:03e976389d16 44 *
mega64 146:03e976389d16 45 * void attime() {
mega64 146:03e976389d16 46 * flip = !flip;
mega64 146:03e976389d16 47 * }
mega64 146:03e976389d16 48 *
mega64 146:03e976389d16 49 * int main() {
mega64 146:03e976389d16 50 * timer.attach(&attime, 5);
mega64 146:03e976389d16 51 * while(1) {
mega64 146:03e976389d16 52 * if(flip == 0) {
mega64 146:03e976389d16 53 * led1 = !led1;
mega64 146:03e976389d16 54 * } else {
mega64 146:03e976389d16 55 * led2 = !led2;
mega64 146:03e976389d16 56 * }
mega64 146:03e976389d16 57 * wait(0.2);
mega64 146:03e976389d16 58 * }
mega64 146:03e976389d16 59 * }
mega64 146:03e976389d16 60 * @endcode
mega64 146:03e976389d16 61 */
mega64 146:03e976389d16 62 class Ticker : public TimerEvent {
mega64 146:03e976389d16 63
mega64 146:03e976389d16 64 public:
mega64 146:03e976389d16 65 Ticker() : TimerEvent() {
mega64 146:03e976389d16 66 }
mega64 146:03e976389d16 67
mega64 146:03e976389d16 68 Ticker(const ticker_data_t *data) : TimerEvent(data) {
mega64 146:03e976389d16 69 data->interface->init();
mega64 146:03e976389d16 70 }
mega64 146:03e976389d16 71
mega64 146:03e976389d16 72 /** Attach a function to be called by the Ticker, specifiying the interval in seconds
mega64 146:03e976389d16 73 *
mega64 146:03e976389d16 74 * @param func pointer to the function to be called
mega64 146:03e976389d16 75 * @param t the time between calls in seconds
mega64 146:03e976389d16 76 */
mega64 146:03e976389d16 77 void attach(Callback<void()> func, float t) {
mega64 146:03e976389d16 78 attach_us(func, t * 1000000.0f);
mega64 146:03e976389d16 79 }
mega64 146:03e976389d16 80
mega64 146:03e976389d16 81 /** Attach a member function to be called by the Ticker, specifiying the interval in seconds
mega64 146:03e976389d16 82 *
mega64 146:03e976389d16 83 * @param obj pointer to the object to call the member function on
mega64 146:03e976389d16 84 * @param method pointer to the member function to be called
mega64 146:03e976389d16 85 * @param t the time between calls in seconds
mega64 146:03e976389d16 86 * @deprecated
mega64 146:03e976389d16 87 * The attach function does not support cv-qualifiers. Replaced by
mega64 146:03e976389d16 88 * attach(callback(obj, method), t).
mega64 146:03e976389d16 89 */
mega64 146:03e976389d16 90 template<typename T, typename M>
mega64 146:03e976389d16 91 MBED_DEPRECATED_SINCE("mbed-os-5.1",
mega64 146:03e976389d16 92 "The attach function does not support cv-qualifiers. Replaced by "
mega64 146:03e976389d16 93 "attach(callback(obj, method), t).")
mega64 146:03e976389d16 94 void attach(T *obj, M method, float t) {
mega64 146:03e976389d16 95 attach(callback(obj, method), t);
mega64 146:03e976389d16 96 }
mega64 146:03e976389d16 97
mega64 146:03e976389d16 98 /** Attach a function to be called by the Ticker, specifiying the interval in micro-seconds
mega64 146:03e976389d16 99 *
mega64 146:03e976389d16 100 * @param fptr pointer to the function to be called
mega64 146:03e976389d16 101 * @param t the time between calls in micro-seconds
mega64 146:03e976389d16 102 */
mega64 146:03e976389d16 103 void attach_us(Callback<void()> func, timestamp_t t) {
mega64 146:03e976389d16 104 _function = func;
mega64 146:03e976389d16 105 setup(t);
mega64 146:03e976389d16 106 }
mega64 146:03e976389d16 107
mega64 146:03e976389d16 108 /** Attach a member function to be called by the Ticker, specifiying the interval in micro-seconds
mega64 146:03e976389d16 109 *
mega64 146:03e976389d16 110 * @param tptr pointer to the object to call the member function on
mega64 146:03e976389d16 111 * @param mptr pointer to the member function to be called
mega64 146:03e976389d16 112 * @param t the time between calls in micro-seconds
mega64 146:03e976389d16 113 * @deprecated
mega64 146:03e976389d16 114 * The attach_us function does not support cv-qualifiers. Replaced by
mega64 146:03e976389d16 115 * attach_us(callback(obj, method), t).
mega64 146:03e976389d16 116 */
mega64 146:03e976389d16 117 template<typename T, typename M>
mega64 146:03e976389d16 118 MBED_DEPRECATED_SINCE("mbed-os-5.1",
mega64 146:03e976389d16 119 "The attach_us function does not support cv-qualifiers. Replaced by "
mega64 146:03e976389d16 120 "attach_us(callback(obj, method), t).")
mega64 146:03e976389d16 121 void attach_us(T *obj, M method, timestamp_t t) {
mega64 146:03e976389d16 122 attach_us(Callback<void()>(obj, method), t);
mega64 146:03e976389d16 123 }
mega64 146:03e976389d16 124
mega64 146:03e976389d16 125 virtual ~Ticker() {
mega64 146:03e976389d16 126 detach();
mega64 146:03e976389d16 127 }
mega64 146:03e976389d16 128
mega64 146:03e976389d16 129 /** Detach the function
mega64 146:03e976389d16 130 */
mega64 146:03e976389d16 131 void detach();
mega64 146:03e976389d16 132
mega64 146:03e976389d16 133 protected:
mega64 146:03e976389d16 134 void setup(timestamp_t t);
mega64 146:03e976389d16 135 virtual void handler();
mega64 146:03e976389d16 136
mega64 146:03e976389d16 137 protected:
mega64 146:03e976389d16 138 timestamp_t _delay; /**< Time delay (in microseconds) for re-setting the multi-shot callback. */
mega64 146:03e976389d16 139 Callback<void()> _function; /**< Callback. */
mega64 146:03e976389d16 140 };
mega64 146:03e976389d16 141
mega64 146:03e976389d16 142 } // namespace mbed
mega64 146:03e976389d16 143
mega64 146:03e976389d16 144 #endif
mega64 146:03e976389d16 145
mega64 146:03e976389d16 146 /** @}*/