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/AnalogOut.h@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:
bogdanm
Date:
Thu Oct 01 15:25:22 2015 +0300
Revision:
0:9b334a45a8ff
Initial commit on mbed-dev



Replaces mbed-src (now inactive)

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_ANALOGOUT_H
bogdanm 0:9b334a45a8ff 17 #define MBED_ANALOGOUT_H
bogdanm 0:9b334a45a8ff 18
bogdanm 0:9b334a45a8ff 19 #include "platform.h"
bogdanm 0:9b334a45a8ff 20
bogdanm 0:9b334a45a8ff 21 #if DEVICE_ANALOGOUT
bogdanm 0:9b334a45a8ff 22
bogdanm 0:9b334a45a8ff 23 #include "analogout_api.h"
bogdanm 0:9b334a45a8ff 24
bogdanm 0:9b334a45a8ff 25 namespace mbed {
bogdanm 0:9b334a45a8ff 26
bogdanm 0:9b334a45a8ff 27 /** An analog output, used for setting the voltage on a pin
bogdanm 0:9b334a45a8ff 28 *
bogdanm 0:9b334a45a8ff 29 * Example:
bogdanm 0:9b334a45a8ff 30 * @code
bogdanm 0:9b334a45a8ff 31 * // Make a sawtooth output
bogdanm 0:9b334a45a8ff 32 *
bogdanm 0:9b334a45a8ff 33 * #include "mbed.h"
bogdanm 0:9b334a45a8ff 34 *
bogdanm 0:9b334a45a8ff 35 * AnalogOut tri(p18);
bogdanm 0:9b334a45a8ff 36 * int main() {
bogdanm 0:9b334a45a8ff 37 * while(1) {
bogdanm 0:9b334a45a8ff 38 * tri = tri + 0.01;
bogdanm 0:9b334a45a8ff 39 * wait_us(1);
bogdanm 0:9b334a45a8ff 40 * if(tri == 1) {
bogdanm 0:9b334a45a8ff 41 * tri = 0;
bogdanm 0:9b334a45a8ff 42 * }
bogdanm 0:9b334a45a8ff 43 * }
bogdanm 0:9b334a45a8ff 44 * }
bogdanm 0:9b334a45a8ff 45 * @endcode
bogdanm 0:9b334a45a8ff 46 */
bogdanm 0:9b334a45a8ff 47 class AnalogOut {
bogdanm 0:9b334a45a8ff 48
bogdanm 0:9b334a45a8ff 49 public:
bogdanm 0:9b334a45a8ff 50
bogdanm 0:9b334a45a8ff 51 /** Create an AnalogOut connected to the specified pin
bogdanm 0:9b334a45a8ff 52 *
bogdanm 0:9b334a45a8ff 53 * @param AnalogOut pin to connect to (18)
bogdanm 0:9b334a45a8ff 54 */
bogdanm 0:9b334a45a8ff 55 AnalogOut(PinName pin) {
bogdanm 0:9b334a45a8ff 56 analogout_init(&_dac, pin);
bogdanm 0:9b334a45a8ff 57 }
bogdanm 0:9b334a45a8ff 58
bogdanm 0:9b334a45a8ff 59 /** Set the output voltage, specified as a percentage (float)
bogdanm 0:9b334a45a8ff 60 *
bogdanm 0:9b334a45a8ff 61 * @param value A floating-point value representing the output voltage,
bogdanm 0:9b334a45a8ff 62 * specified as a percentage. The value should lie between
bogdanm 0:9b334a45a8ff 63 * 0.0f (representing 0v / 0%) and 1.0f (representing 3.3v / 100%).
bogdanm 0:9b334a45a8ff 64 * Values outside this range will be saturated to 0.0f or 1.0f.
bogdanm 0:9b334a45a8ff 65 */
bogdanm 0:9b334a45a8ff 66 void write(float value) {
bogdanm 0:9b334a45a8ff 67 analogout_write(&_dac, value);
bogdanm 0:9b334a45a8ff 68 }
bogdanm 0:9b334a45a8ff 69
bogdanm 0:9b334a45a8ff 70 /** Set the output voltage, represented as an unsigned short in the range [0x0, 0xFFFF]
bogdanm 0:9b334a45a8ff 71 *
bogdanm 0:9b334a45a8ff 72 * @param value 16-bit unsigned short representing the output voltage,
bogdanm 0:9b334a45a8ff 73 * normalised to a 16-bit value (0x0000 = 0v, 0xFFFF = 3.3v)
bogdanm 0:9b334a45a8ff 74 */
bogdanm 0:9b334a45a8ff 75 void write_u16(unsigned short value) {
bogdanm 0:9b334a45a8ff 76 analogout_write_u16(&_dac, value);
bogdanm 0:9b334a45a8ff 77 }
bogdanm 0:9b334a45a8ff 78
bogdanm 0:9b334a45a8ff 79 /** Return the current output voltage setting, measured as a percentage (float)
bogdanm 0:9b334a45a8ff 80 *
bogdanm 0:9b334a45a8ff 81 * @returns
bogdanm 0:9b334a45a8ff 82 * A floating-point value representing the current voltage being output on the pin,
bogdanm 0:9b334a45a8ff 83 * measured as a percentage. The returned value will lie between
bogdanm 0:9b334a45a8ff 84 * 0.0f (representing 0v / 0%) and 1.0f (representing 3.3v / 100%).
bogdanm 0:9b334a45a8ff 85 *
bogdanm 0:9b334a45a8ff 86 * @note
bogdanm 0:9b334a45a8ff 87 * This value may not match exactly the value set by a previous write().
bogdanm 0:9b334a45a8ff 88 */
bogdanm 0:9b334a45a8ff 89 float read() {
bogdanm 0:9b334a45a8ff 90 return analogout_read(&_dac);
bogdanm 0:9b334a45a8ff 91 }
bogdanm 0:9b334a45a8ff 92
bogdanm 0:9b334a45a8ff 93 #ifdef MBED_OPERATORS
bogdanm 0:9b334a45a8ff 94 /** An operator shorthand for write()
bogdanm 0:9b334a45a8ff 95 */
bogdanm 0:9b334a45a8ff 96 AnalogOut& operator= (float percent) {
bogdanm 0:9b334a45a8ff 97 write(percent);
bogdanm 0:9b334a45a8ff 98 return *this;
bogdanm 0:9b334a45a8ff 99 }
bogdanm 0:9b334a45a8ff 100
bogdanm 0:9b334a45a8ff 101 AnalogOut& operator= (AnalogOut& rhs) {
bogdanm 0:9b334a45a8ff 102 write(rhs.read());
bogdanm 0:9b334a45a8ff 103 return *this;
bogdanm 0:9b334a45a8ff 104 }
bogdanm 0:9b334a45a8ff 105
bogdanm 0:9b334a45a8ff 106 /** An operator shorthand for read()
bogdanm 0:9b334a45a8ff 107 */
bogdanm 0:9b334a45a8ff 108 operator float() {
bogdanm 0:9b334a45a8ff 109 return read();
bogdanm 0:9b334a45a8ff 110 }
bogdanm 0:9b334a45a8ff 111 #endif
bogdanm 0:9b334a45a8ff 112
bogdanm 0:9b334a45a8ff 113 protected:
bogdanm 0:9b334a45a8ff 114 dac_t _dac;
bogdanm 0:9b334a45a8ff 115 };
bogdanm 0:9b334a45a8ff 116
bogdanm 0:9b334a45a8ff 117 } // namespace mbed
bogdanm 0:9b334a45a8ff 118
bogdanm 0:9b334a45a8ff 119 #endif
bogdanm 0:9b334a45a8ff 120
bogdanm 0:9b334a45a8ff 121 #endif