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)

cmsis/arm_const_structs.h

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

File content as of revision 148:8b0b02bf146f:

/* ----------------------------------------------------------------------
* Copyright (C) 2010-2014 ARM Limited. All rights reserved.
*
* $Date:        19. March 2015
* $Revision: 	V.1.4.5
*
* Project: 	    CMSIS DSP Library
* Title:	    arm_const_structs.h
*
* Description:	This file has constant structs that are initialized for
*              user convenience.  For example, some can be given as
*              arguments to the arm_cfft_f32() function.
*
* Target Processor: Cortex-M4/Cortex-M3
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*   - Redistributions of source code must retain the above copyright
*     notice, this list of conditions and the following disclaimer.
*   - Redistributions in binary form must reproduce the above copyright
*     notice, this list of conditions and the following disclaimer in
*     the documentation and/or other materials provided with the
*     distribution.
*   - Neither the name of ARM LIMITED nor the names of its contributors
*     may be used to endorse or promote products derived from this
*     software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
* -------------------------------------------------------------------- */

#ifndef _ARM_CONST_STRUCTS_H
#define _ARM_CONST_STRUCTS_H

#include "arm_math.h"
#include "arm_common_tables.h"

   extern const arm_cfft_instance_f32 arm_cfft_sR_f32_len16;
   extern const arm_cfft_instance_f32 arm_cfft_sR_f32_len32;
   extern const arm_cfft_instance_f32 arm_cfft_sR_f32_len64;
   extern const arm_cfft_instance_f32 arm_cfft_sR_f32_len128;
   extern const arm_cfft_instance_f32 arm_cfft_sR_f32_len256;
   extern const arm_cfft_instance_f32 arm_cfft_sR_f32_len512;
   extern const arm_cfft_instance_f32 arm_cfft_sR_f32_len1024;
   extern const arm_cfft_instance_f32 arm_cfft_sR_f32_len2048;
   extern const arm_cfft_instance_f32 arm_cfft_sR_f32_len4096;

   extern const arm_cfft_instance_q31 arm_cfft_sR_q31_len16;
   extern const arm_cfft_instance_q31 arm_cfft_sR_q31_len32;
   extern const arm_cfft_instance_q31 arm_cfft_sR_q31_len64;
   extern const arm_cfft_instance_q31 arm_cfft_sR_q31_len128;
   extern const arm_cfft_instance_q31 arm_cfft_sR_q31_len256;
   extern const arm_cfft_instance_q31 arm_cfft_sR_q31_len512;
   extern const arm_cfft_instance_q31 arm_cfft_sR_q31_len1024;
   extern const arm_cfft_instance_q31 arm_cfft_sR_q31_len2048;
   extern const arm_cfft_instance_q31 arm_cfft_sR_q31_len4096;

   extern const arm_cfft_instance_q15 arm_cfft_sR_q15_len16;
   extern const arm_cfft_instance_q15 arm_cfft_sR_q15_len32;
   extern const arm_cfft_instance_q15 arm_cfft_sR_q15_len64;
   extern const arm_cfft_instance_q15 arm_cfft_sR_q15_len128;
   extern const arm_cfft_instance_q15 arm_cfft_sR_q15_len256;
   extern const arm_cfft_instance_q15 arm_cfft_sR_q15_len512;
   extern const arm_cfft_instance_q15 arm_cfft_sR_q15_len1024;
   extern const arm_cfft_instance_q15 arm_cfft_sR_q15_len2048;
   extern const arm_cfft_instance_q15 arm_cfft_sR_q15_len4096;

#endif