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/SPISlave.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_SPISLAVE_H
bogdanm 0:9b334a45a8ff 17 #define MBED_SPISLAVE_H
bogdanm 0:9b334a45a8ff 18
bogdanm 0:9b334a45a8ff 19 #include "platform.h"
bogdanm 0:9b334a45a8ff 20
bogdanm 0:9b334a45a8ff 21 #if DEVICE_SPISLAVE
bogdanm 0:9b334a45a8ff 22
bogdanm 0:9b334a45a8ff 23 #include "spi_api.h"
bogdanm 0:9b334a45a8ff 24
bogdanm 0:9b334a45a8ff 25 namespace mbed {
bogdanm 0:9b334a45a8ff 26
bogdanm 0:9b334a45a8ff 27 /** A SPI slave, used for communicating with a SPI Master device
bogdanm 0:9b334a45a8ff 28 *
bogdanm 0:9b334a45a8ff 29 * The default format is set to 8-bits, mode 0, and a clock frequency of 1MHz
bogdanm 0:9b334a45a8ff 30 *
bogdanm 0:9b334a45a8ff 31 * Example:
bogdanm 0:9b334a45a8ff 32 * @code
bogdanm 0:9b334a45a8ff 33 * // Reply to a SPI master as slave
bogdanm 0:9b334a45a8ff 34 *
bogdanm 0:9b334a45a8ff 35 * #include "mbed.h"
bogdanm 0:9b334a45a8ff 36 *
bogdanm 0:9b334a45a8ff 37 * SPISlave device(p5, p6, p7, p8); // mosi, miso, sclk, ssel
bogdanm 0:9b334a45a8ff 38 *
bogdanm 0:9b334a45a8ff 39 * int main() {
bogdanm 0:9b334a45a8ff 40 * device.reply(0x00); // Prime SPI with first reply
bogdanm 0:9b334a45a8ff 41 * while(1) {
bogdanm 0:9b334a45a8ff 42 * if(device.receive()) {
bogdanm 0:9b334a45a8ff 43 * int v = device.read(); // Read byte from master
bogdanm 0:9b334a45a8ff 44 * v = (v + 1) % 0x100; // Add one to it, modulo 256
bogdanm 0:9b334a45a8ff 45 * device.reply(v); // Make this the next reply
bogdanm 0:9b334a45a8ff 46 * }
bogdanm 0:9b334a45a8ff 47 * }
bogdanm 0:9b334a45a8ff 48 * }
bogdanm 0:9b334a45a8ff 49 * @endcode
bogdanm 0:9b334a45a8ff 50 */
bogdanm 0:9b334a45a8ff 51 class SPISlave {
bogdanm 0:9b334a45a8ff 52
bogdanm 0:9b334a45a8ff 53 public:
bogdanm 0:9b334a45a8ff 54
bogdanm 0:9b334a45a8ff 55 /** Create a SPI slave connected to the specified pins
bogdanm 0:9b334a45a8ff 56 *
bogdanm 0:9b334a45a8ff 57 * mosi or miso can be specfied as NC if not used
bogdanm 0:9b334a45a8ff 58 *
bogdanm 0:9b334a45a8ff 59 * @param mosi SPI Master Out, Slave In pin
bogdanm 0:9b334a45a8ff 60 * @param miso SPI Master In, Slave Out pin
bogdanm 0:9b334a45a8ff 61 * @param sclk SPI Clock pin
bogdanm 0:9b334a45a8ff 62 * @param ssel SPI chip select pin
bogdanm 0:9b334a45a8ff 63 */
bogdanm 0:9b334a45a8ff 64 SPISlave(PinName mosi, PinName miso, PinName sclk, PinName ssel);
bogdanm 0:9b334a45a8ff 65
bogdanm 0:9b334a45a8ff 66 /** Configure the data transmission format
bogdanm 0:9b334a45a8ff 67 *
bogdanm 0:9b334a45a8ff 68 * @param bits Number of bits per SPI frame (4 - 16)
bogdanm 0:9b334a45a8ff 69 * @param mode Clock polarity and phase mode (0 - 3)
bogdanm 0:9b334a45a8ff 70 *
bogdanm 0:9b334a45a8ff 71 * @code
bogdanm 0:9b334a45a8ff 72 * mode | POL PHA
bogdanm 0:9b334a45a8ff 73 * -----+--------
bogdanm 0:9b334a45a8ff 74 * 0 | 0 0
bogdanm 0:9b334a45a8ff 75 * 1 | 0 1
bogdanm 0:9b334a45a8ff 76 * 2 | 1 0
bogdanm 0:9b334a45a8ff 77 * 3 | 1 1
bogdanm 0:9b334a45a8ff 78 * @endcode
bogdanm 0:9b334a45a8ff 79 */
bogdanm 0:9b334a45a8ff 80 void format(int bits, int mode = 0);
bogdanm 0:9b334a45a8ff 81
bogdanm 0:9b334a45a8ff 82 /** Set the spi bus clock frequency
bogdanm 0:9b334a45a8ff 83 *
bogdanm 0:9b334a45a8ff 84 * @param hz SCLK frequency in hz (default = 1MHz)
bogdanm 0:9b334a45a8ff 85 */
bogdanm 0:9b334a45a8ff 86 void frequency(int hz = 1000000);
bogdanm 0:9b334a45a8ff 87
bogdanm 0:9b334a45a8ff 88 /** Polls the SPI to see if data has been received
bogdanm 0:9b334a45a8ff 89 *
bogdanm 0:9b334a45a8ff 90 * @returns
bogdanm 0:9b334a45a8ff 91 * 0 if no data,
bogdanm 0:9b334a45a8ff 92 * 1 otherwise
bogdanm 0:9b334a45a8ff 93 */
bogdanm 0:9b334a45a8ff 94 int receive(void);
bogdanm 0:9b334a45a8ff 95
bogdanm 0:9b334a45a8ff 96 /** Retrieve data from receive buffer as slave
bogdanm 0:9b334a45a8ff 97 *
bogdanm 0:9b334a45a8ff 98 * @returns
bogdanm 0:9b334a45a8ff 99 * the data in the receive buffer
bogdanm 0:9b334a45a8ff 100 */
bogdanm 0:9b334a45a8ff 101 int read(void);
bogdanm 0:9b334a45a8ff 102
bogdanm 0:9b334a45a8ff 103 /** Fill the transmission buffer with the value to be written out
bogdanm 0:9b334a45a8ff 104 * as slave on the next received message from the master.
bogdanm 0:9b334a45a8ff 105 *
bogdanm 0:9b334a45a8ff 106 * @param value the data to be transmitted next
bogdanm 0:9b334a45a8ff 107 */
bogdanm 0:9b334a45a8ff 108 void reply(int value);
bogdanm 0:9b334a45a8ff 109
bogdanm 0:9b334a45a8ff 110 protected:
bogdanm 0:9b334a45a8ff 111 spi_t _spi;
bogdanm 0:9b334a45a8ff 112
bogdanm 0:9b334a45a8ff 113 int _bits;
bogdanm 0:9b334a45a8ff 114 int _mode;
bogdanm 0:9b334a45a8ff 115 int _hz;
bogdanm 0:9b334a45a8ff 116 };
bogdanm 0:9b334a45a8ff 117
bogdanm 0:9b334a45a8ff 118 } // namespace mbed
bogdanm 0:9b334a45a8ff 119
bogdanm 0:9b334a45a8ff 120 #endif
bogdanm 0:9b334a45a8ff 121
bogdanm 0:9b334a45a8ff 122 #endif