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

Committer:
mega64
Date:
Thu Apr 27 23:56:38 2017 +0000
Revision:
148:8b0b02bf146f
Parent:
147:38a0c20c7b3e 
Remove unnecessary folders

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_ANALOGIN_API_H
mega64 147:38a0c20c7b3e 20 #define MBED_ANALOGIN_API_H
mega64 147:38a0c20c7b3e 21
mega64 147:38a0c20c7b3e 22 #include "device.h"
mega64 147:38a0c20c7b3e 23
mega64 147:38a0c20c7b3e 24 #if DEVICE_ANALOGIN
mega64 147:38a0c20c7b3e 25
mega64 147:38a0c20c7b3e 26 #ifdef __cplusplus
mega64 147:38a0c20c7b3e 27 extern "C" {
mega64 147:38a0c20c7b3e 28 #endif
mega64 147:38a0c20c7b3e 29
mega64 147:38a0c20c7b3e 30 /** Analogin hal structure. analogin_s is declared in the target's hal
mega64 147:38a0c20c7b3e 31 */
mega64 147:38a0c20c7b3e 32 typedef struct analogin_s analogin_t;
mega64 147:38a0c20c7b3e 33
mega64 147:38a0c20c7b3e 34 /**
mega64 147:38a0c20c7b3e 35 * \defgroup hal_analogin Analogin hal functions
mega64 147:38a0c20c7b3e 36 * @{
mega64 147:38a0c20c7b3e 37 */
mega64 147:38a0c20c7b3e 38
mega64 147:38a0c20c7b3e 39 /** Initialize the analogin peripheral
mega64 147:38a0c20c7b3e 40 *
mega64 147:38a0c20c7b3e 41 * Configures the pin used by analogin.
mega64 147:38a0c20c7b3e 42 * @param obj The analogin object to initialize
mega64 147:38a0c20c7b3e 43 * @param pin The analogin pin name
mega64 147:38a0c20c7b3e 44 */
mega64 147:38a0c20c7b3e 45 void analogin_init(analogin_t *obj, PinName pin);
mega64 147:38a0c20c7b3e 46
mega64 147:38a0c20c7b3e 47 /** Read the input voltage, represented as a float in the range [0.0, 1.0]
mega64 147:38a0c20c7b3e 48 *
mega64 147:38a0c20c7b3e 49 * @param obj The analogin object
mega64 147:38a0c20c7b3e 50 * @return A floating value representing the current input voltage
mega64 147:38a0c20c7b3e 51 */
mega64 147:38a0c20c7b3e 52 float analogin_read(analogin_t *obj);
mega64 147:38a0c20c7b3e 53
mega64 147:38a0c20c7b3e 54 /** Read the value from analogin pin, represented as an unsigned 16bit value
mega64 147:38a0c20c7b3e 55 *
mega64 147:38a0c20c7b3e 56 * @param obj The analogin object
mega64 147:38a0c20c7b3e 57 * @return An unsigned 16bit value representing the current input voltage
mega64 147:38a0c20c7b3e 58 */
mega64 147:38a0c20c7b3e 59 uint16_t analogin_read_u16(analogin_t *obj);
mega64 147:38a0c20c7b3e 60
mega64 147:38a0c20c7b3e 61 /**@}*/
mega64 147:38a0c20c7b3e 62
mega64 147:38a0c20c7b3e 63 #ifdef __cplusplus
mega64 147:38a0c20c7b3e 64 }
mega64 147:38a0c20c7b3e 65 #endif
mega64 147:38a0c20c7b3e 66
mega64 147:38a0c20c7b3e 67 #endif
mega64 147:38a0c20c7b3e 68
mega64 147:38a0c20c7b3e 69 #endif
mega64 147:38a0c20c7b3e 70
mega64 147:38a0c20c7b3e 71 /** @}*/