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)

hal/can_helper.h@146:03e976389d16, 2017-03-16 (annotated)

Committer:
mega64
Date:
Thu Mar 16 06:15:53 2017 +0000
Revision:
146:03e976389d16
fully rebuild, now based on mbed-dev v160

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mega64 146:03e976389d16 1
mega64 146:03e976389d16 2 /** \addtogroup hal */
mega64 146:03e976389d16 3 /** @{*/
mega64 146:03e976389d16 4 /* mbed Microcontroller Library
mega64 146:03e976389d16 5 * Copyright (c) 2006-2013 ARM Limited
mega64 146:03e976389d16 6 *
mega64 146:03e976389d16 7 * Licensed under the Apache License, Version 2.0 (the "License");
mega64 146:03e976389d16 8 * you may not use this file except in compliance with the License.
mega64 146:03e976389d16 9 * You may obtain a copy of the License at
mega64 146:03e976389d16 10 *
mega64 146:03e976389d16 11 * http://www.apache.org/licenses/LICENSE-2.0
mega64 146:03e976389d16 12 *
mega64 146:03e976389d16 13 * Unless required by applicable law or agreed to in writing, software
mega64 146:03e976389d16 14 * distributed under the License is distributed on an "AS IS" BASIS,
mega64 146:03e976389d16 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mega64 146:03e976389d16 16 * See the License for the specific language governing permissions and
mega64 146:03e976389d16 17 * limitations under the License.
mega64 146:03e976389d16 18 */
mega64 146:03e976389d16 19 #ifndef MBED_CAN_HELPER_H
mega64 146:03e976389d16 20 #define MBED_CAN_HELPER_H
mega64 146:03e976389d16 21
mega64 146:03e976389d16 22 #if DEVICE_CAN
mega64 146:03e976389d16 23
mega64 146:03e976389d16 24 #ifdef __cplusplus
mega64 146:03e976389d16 25 extern "C" {
mega64 146:03e976389d16 26 #endif
mega64 146:03e976389d16 27
mega64 146:03e976389d16 28 enum CANFormat {
mega64 146:03e976389d16 29 CANStandard = 0,
mega64 146:03e976389d16 30 CANExtended = 1,
mega64 146:03e976389d16 31 CANAny = 2
mega64 146:03e976389d16 32 };
mega64 146:03e976389d16 33 typedef enum CANFormat CANFormat;
mega64 146:03e976389d16 34
mega64 146:03e976389d16 35 enum CANType {
mega64 146:03e976389d16 36 CANData = 0,
mega64 146:03e976389d16 37 CANRemote = 1
mega64 146:03e976389d16 38 };
mega64 146:03e976389d16 39 typedef enum CANType CANType;
mega64 146:03e976389d16 40
mega64 146:03e976389d16 41 struct CAN_Message {
mega64 146:03e976389d16 42 unsigned int id; // 29 bit identifier
mega64 146:03e976389d16 43 unsigned char data[8]; // Data field
mega64 146:03e976389d16 44 unsigned char len; // Length of data field in bytes
mega64 146:03e976389d16 45 CANFormat format; // 0 - STANDARD, 1- EXTENDED IDENTIFIER
mega64 146:03e976389d16 46 CANType type; // 0 - DATA FRAME, 1 - REMOTE FRAME
mega64 146:03e976389d16 47 };
mega64 146:03e976389d16 48 typedef struct CAN_Message CAN_Message;
mega64 146:03e976389d16 49
mega64 146:03e976389d16 50 #ifdef __cplusplus
mega64 146:03e976389d16 51 };
mega64 146:03e976389d16 52 #endif
mega64 146:03e976389d16 53
mega64 146:03e976389d16 54 #endif
mega64 146:03e976389d16 55
mega64 146:03e976389d16 56 #endif // MBED_CAN_HELPER_H
mega64 146:03e976389d16 57
mega64 146:03e976389d16 58 /** @}*/