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)

platform/mbed_stats.h

Committer:
mega64
Date:
2017-04-27
Revision:
148:8b0b02bf146f
Parent:
146:03e976389d16

File content as of revision 148:8b0b02bf146f:


/** \addtogroup platform */
/** @{*/
/* mbed Microcontroller Library
 * Copyright (c) 2016-2016 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_STATS_H
#define MBED_STATS_H
#include <stdint.h>
#include <stddef.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    uint32_t current_size;      /**< Bytes allocated currently. */
    uint32_t max_size;          /**< Max bytes allocated at a given time. */
    uint32_t total_size;        /**< Cumulative sum of bytes ever allocated. */
    uint32_t reserved_size;     /**< Current number of bytes allocated for the heap. */
    uint32_t alloc_cnt;         /**< Current number of allocations. */
    uint32_t alloc_fail_cnt;    /**< Number of failed allocations. */
} mbed_stats_heap_t;

/**
 *  Fill the passed in heap stat structure with heap stats.
 *
 *  @param stats    A pointer to the mbed_stats_heap_t structure to fill
 */
void mbed_stats_heap_get(mbed_stats_heap_t *stats);

typedef struct {
    uint32_t thread_id;         /**< Identifier for thread that owns the stack. */
    uint32_t max_size;          /**< Sum of the maximum number of bytes used in each stack. */
    uint32_t reserved_size;     /**< Current number of bytes allocated for all stacks. */
    uint32_t stack_cnt;         /**< Number of stacks currently allocated. */
} mbed_stats_stack_t;

/**
 *  Fill the passed in structure with stack stats.
 *
 *  @param stats    A pointer to the mbed_stats_stack_t structure to fill
 */
void mbed_stats_stack_get(mbed_stats_stack_t *stats);

/**
 *  Fill the passed array of stat structures with the stack stats
 *  for each available stack.
 *
 *  @param stats    A pointer to an array of mbed_stats_stack_t structures to fill
 *  @param count    The number of mbed_stats_stack_t structures in the provided array
 *  @return         The number of mbed_stats_stack_t structures that have been filled,
 *                  this is equal to the number of stacks on the system.
 */
size_t mbed_stats_stack_get_each(mbed_stats_stack_t *stats, size_t count);

#ifdef __cplusplus
}
#endif

#endif

/** @}*/