Nothing Special / mbed-STM32F103C8_org

Modification of Mbed-dev library for LQFP48 package microcontrollers: STM32F103C8 (STM32F103C8T6) and STM32F103CB (STM32F103CBT6) (Bluepill boards, Maple mini etc. )

Fork of mbed-dev by mbed official

Warning!

This library is unable to work due to huge changes in the mbed toolchain. Do not use with mbed online!

New wersion:

Import librarymbed-STM32F103C8

Modification of Mbed-dev library for LQFP48 package microcontrollers: STM32F103C8 (STM32F103C8T6) and STM32F103CB (STM32F103CBT6) (Bluepill boards, Maple mini etc. )

Last commit 27 Apr 2017 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 clock (mbed 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)

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

api/DigitalIn.h@145:54b3c5994df6, 2016-08-29 (annotated)

Committer:
mega64
Date:
Mon Aug 29 01:00:12 2016 +0000
Revision:
145:54b3c5994df6
Parent:
0:9b334a45a8ff 
Change peripherals and pins definitions from LQFP64 to LQFP48 case.;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library
bogdanm 0:9b334a45a8ff 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 0:9b334a45a8ff 3 *
bogdanm 0:9b334a45a8ff 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 0:9b334a45a8ff 5 * you may not use this file except in compliance with the License.
bogdanm 0:9b334a45a8ff 6 * You may obtain a copy of the License at
bogdanm 0:9b334a45a8ff 7 *
bogdanm 0:9b334a45a8ff 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 0:9b334a45a8ff 9 *
bogdanm 0:9b334a45a8ff 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 0:9b334a45a8ff 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 0:9b334a45a8ff 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 0:9b334a45a8ff 13 * See the License for the specific language governing permissions and
bogdanm 0:9b334a45a8ff 14 * limitations under the License.
bogdanm 0:9b334a45a8ff 15 */
bogdanm 0:9b334a45a8ff 16 #ifndef MBED_DIGITALIN_H
bogdanm 0:9b334a45a8ff 17 #define MBED_DIGITALIN_H
bogdanm 0:9b334a45a8ff 18
bogdanm 0:9b334a45a8ff 19 #include "platform.h"
bogdanm 0:9b334a45a8ff 20
bogdanm 0:9b334a45a8ff 21 #include "gpio_api.h"
bogdanm 0:9b334a45a8ff 22
bogdanm 0:9b334a45a8ff 23 namespace mbed {
bogdanm 0:9b334a45a8ff 24
bogdanm 0:9b334a45a8ff 25 /** A digital input, used for reading the state of a pin
bogdanm 0:9b334a45a8ff 26 *
bogdanm 0:9b334a45a8ff 27 * Example:
bogdanm 0:9b334a45a8ff 28 * @code
bogdanm 0:9b334a45a8ff 29 * // Flash an LED while a DigitalIn is true
bogdanm 0:9b334a45a8ff 30 *
bogdanm 0:9b334a45a8ff 31 * #include "mbed.h"
bogdanm 0:9b334a45a8ff 32 *
bogdanm 0:9b334a45a8ff 33 * DigitalIn enable(p5);
bogdanm 0:9b334a45a8ff 34 * DigitalOut led(LED1);
bogdanm 0:9b334a45a8ff 35 *
bogdanm 0:9b334a45a8ff 36 * int main() {
bogdanm 0:9b334a45a8ff 37 * while(1) {
bogdanm 0:9b334a45a8ff 38 * if(enable) {
bogdanm 0:9b334a45a8ff 39 * led = !led;
bogdanm 0:9b334a45a8ff 40 * }
bogdanm 0:9b334a45a8ff 41 * wait(0.25);
bogdanm 0:9b334a45a8ff 42 * }
bogdanm 0:9b334a45a8ff 43 * }
bogdanm 0:9b334a45a8ff 44 * @endcode
bogdanm 0:9b334a45a8ff 45 */
bogdanm 0:9b334a45a8ff 46 class DigitalIn {
bogdanm 0:9b334a45a8ff 47
bogdanm 0:9b334a45a8ff 48 public:
bogdanm 0:9b334a45a8ff 49 /** Create a DigitalIn connected to the specified pin
bogdanm 0:9b334a45a8ff 50 *
bogdanm 0:9b334a45a8ff 51 * @param pin DigitalIn pin to connect to
bogdanm 0:9b334a45a8ff 52 */
bogdanm 0:9b334a45a8ff 53 DigitalIn(PinName pin) : gpio() {
bogdanm 0:9b334a45a8ff 54 gpio_init_in(&gpio, pin);
bogdanm 0:9b334a45a8ff 55 }
bogdanm 0:9b334a45a8ff 56
bogdanm 0:9b334a45a8ff 57 /** Create a DigitalIn connected to the specified pin
bogdanm 0:9b334a45a8ff 58 *
bogdanm 0:9b334a45a8ff 59 * @param pin DigitalIn pin to connect to
bogdanm 0:9b334a45a8ff 60 * @param mode the initial mode of the pin
bogdanm 0:9b334a45a8ff 61 */
bogdanm 0:9b334a45a8ff 62 DigitalIn(PinName pin, PinMode mode) : gpio() {
bogdanm 0:9b334a45a8ff 63 gpio_init_in_ex(&gpio, pin, mode);
bogdanm 0:9b334a45a8ff 64 }
bogdanm 0:9b334a45a8ff 65 /** Read the input, represented as 0 or 1 (int)
bogdanm 0:9b334a45a8ff 66 *
bogdanm 0:9b334a45a8ff 67 * @returns
bogdanm 0:9b334a45a8ff 68 * An integer representing the state of the input pin,
bogdanm 0:9b334a45a8ff 69 * 0 for logical 0, 1 for logical 1
bogdanm 0:9b334a45a8ff 70 */
bogdanm 0:9b334a45a8ff 71 int read() {
bogdanm 0:9b334a45a8ff 72 return gpio_read(&gpio);
bogdanm 0:9b334a45a8ff 73 }
bogdanm 0:9b334a45a8ff 74
bogdanm 0:9b334a45a8ff 75 /** Set the input pin mode
bogdanm 0:9b334a45a8ff 76 *
bogdanm 0:9b334a45a8ff 77 * @param mode PullUp, PullDown, PullNone, OpenDrain
bogdanm 0:9b334a45a8ff 78 */
bogdanm 0:9b334a45a8ff 79 void mode(PinMode pull) {
bogdanm 0:9b334a45a8ff 80 gpio_mode(&gpio, pull);
bogdanm 0:9b334a45a8ff 81 }
bogdanm 0:9b334a45a8ff 82
bogdanm 0:9b334a45a8ff 83 /** Return the output setting, represented as 0 or 1 (int)
bogdanm 0:9b334a45a8ff 84 *
bogdanm 0:9b334a45a8ff 85 * @returns
bogdanm 0:9b334a45a8ff 86 * Non zero value if pin is connected to uc GPIO
bogdanm 0:9b334a45a8ff 87 * 0 if gpio object was initialized with NC
bogdanm 0:9b334a45a8ff 88 */
bogdanm 0:9b334a45a8ff 89 int is_connected() {
bogdanm 0:9b334a45a8ff 90 return gpio_is_connected(&gpio);
bogdanm 0:9b334a45a8ff 91 }
bogdanm 0:9b334a45a8ff 92
bogdanm 0:9b334a45a8ff 93 #ifdef MBED_OPERATORS
bogdanm 0:9b334a45a8ff 94 /** An operator shorthand for read()
bogdanm 0:9b334a45a8ff 95 */
bogdanm 0:9b334a45a8ff 96 operator int() {
bogdanm 0:9b334a45a8ff 97 return read();
bogdanm 0:9b334a45a8ff 98 }
bogdanm 0:9b334a45a8ff 99 #endif
bogdanm 0:9b334a45a8ff 100
bogdanm 0:9b334a45a8ff 101 protected:
bogdanm 0:9b334a45a8ff 102 gpio_t gpio;
bogdanm 0:9b334a45a8ff 103 };
bogdanm 0:9b334a45a8ff 104
bogdanm 0:9b334a45a8ff 105 } // namespace mbed
bogdanm 0:9b334a45a8ff 106
bogdanm 0:9b334a45a8ff 107 #endif