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)
Committer:
mega64
Date:
Thu Mar 16 07:17:23 2017 +0000
Revision:
147:38a0c20c7b3e
fully rebuild, now based on mbed-dev v160. restore lost files

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mega64 147:38a0c20c7b3e 1
mega64 147:38a0c20c7b3e 2 /** \addtogroup hal */
mega64 147:38a0c20c7b3e 3 /** @{*/
mega64 147:38a0c20c7b3e 4 /* mbed Microcontroller Library
mega64 147:38a0c20c7b3e 5 * Copyright (c) 2006-2013 ARM Limited
mega64 147:38a0c20c7b3e 6 *
mega64 147:38a0c20c7b3e 7 * Licensed under the Apache License, Version 2.0 (the "License");
mega64 147:38a0c20c7b3e 8 * you may not use this file except in compliance with the License.
mega64 147:38a0c20c7b3e 9 * You may obtain a copy of the License at
mega64 147:38a0c20c7b3e 10 *
mega64 147:38a0c20c7b3e 11 * http://www.apache.org/licenses/LICENSE-2.0
mega64 147:38a0c20c7b3e 12 *
mega64 147:38a0c20c7b3e 13 * Unless required by applicable law or agreed to in writing, software
mega64 147:38a0c20c7b3e 14 * distributed under the License is distributed on an "AS IS" BASIS,
mega64 147:38a0c20c7b3e 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mega64 147:38a0c20c7b3e 16 * See the License for the specific language governing permissions and
mega64 147:38a0c20c7b3e 17 * limitations under the License.
mega64 147:38a0c20c7b3e 18 */
mega64 147:38a0c20c7b3e 19 #ifndef MBED_RTC_API_H
mega64 147:38a0c20c7b3e 20 #define MBED_RTC_API_H
mega64 147:38a0c20c7b3e 21
mega64 147:38a0c20c7b3e 22 #include "device.h"
mega64 147:38a0c20c7b3e 23
mega64 147:38a0c20c7b3e 24 #if DEVICE_RTC
mega64 147:38a0c20c7b3e 25
mega64 147:38a0c20c7b3e 26 #include <time.h>
mega64 147:38a0c20c7b3e 27
mega64 147:38a0c20c7b3e 28 #ifdef __cplusplus
mega64 147:38a0c20c7b3e 29 extern "C" {
mega64 147:38a0c20c7b3e 30 #endif
mega64 147:38a0c20c7b3e 31
mega64 147:38a0c20c7b3e 32 /**
mega64 147:38a0c20c7b3e 33 * \defgroup hal_rtc RTC hal functions
mega64 147:38a0c20c7b3e 34 * @{
mega64 147:38a0c20c7b3e 35 */
mega64 147:38a0c20c7b3e 36
mega64 147:38a0c20c7b3e 37 /** Initialize the RTC peripheral
mega64 147:38a0c20c7b3e 38 *
mega64 147:38a0c20c7b3e 39 */
mega64 147:38a0c20c7b3e 40 void rtc_init(void);
mega64 147:38a0c20c7b3e 41
mega64 147:38a0c20c7b3e 42 /** Deinitialize RTC
mega64 147:38a0c20c7b3e 43 *
mega64 147:38a0c20c7b3e 44 * TODO: The function is not used by rtc api in mbed-drivers.
mega64 147:38a0c20c7b3e 45 */
mega64 147:38a0c20c7b3e 46 void rtc_free(void);
mega64 147:38a0c20c7b3e 47
mega64 147:38a0c20c7b3e 48 /** Get the RTC enable status
mega64 147:38a0c20c7b3e 49 *
mega64 147:38a0c20c7b3e 50 * @retval 0 disabled
mega64 147:38a0c20c7b3e 51 * @retval 1 enabled
mega64 147:38a0c20c7b3e 52 */
mega64 147:38a0c20c7b3e 53 int rtc_isenabled(void);
mega64 147:38a0c20c7b3e 54
mega64 147:38a0c20c7b3e 55 /** Get the current time from the RTC peripheral
mega64 147:38a0c20c7b3e 56 *
mega64 147:38a0c20c7b3e 57 * @return The current time
mega64 147:38a0c20c7b3e 58 */
mega64 147:38a0c20c7b3e 59 time_t rtc_read(void);
mega64 147:38a0c20c7b3e 60
mega64 147:38a0c20c7b3e 61 /** Set the current time to the RTC peripheral
mega64 147:38a0c20c7b3e 62 *
mega64 147:38a0c20c7b3e 63 * @param t The current time to be set
mega64 147:38a0c20c7b3e 64 */
mega64 147:38a0c20c7b3e 65 void rtc_write(time_t t);
mega64 147:38a0c20c7b3e 66
mega64 147:38a0c20c7b3e 67 /**@}*/
mega64 147:38a0c20c7b3e 68
mega64 147:38a0c20c7b3e 69 #ifdef __cplusplus
mega64 147:38a0c20c7b3e 70 }
mega64 147:38a0c20c7b3e 71 #endif
mega64 147:38a0c20c7b3e 72
mega64 147:38a0c20c7b3e 73 #endif
mega64 147:38a0c20c7b3e 74
mega64 147:38a0c20c7b3e 75 #endif
mega64 147:38a0c20c7b3e 76
mega64 147:38a0c20c7b3e 77 /** @}*/