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/TARGET_FLASH_CMSIS_ALGO/flash_data.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 /* mbed Microcontroller Library
mega64 146:03e976389d16 2 * Copyright (c) 2017 ARM Limited
mega64 146:03e976389d16 3 *
mega64 146:03e976389d16 4 * Licensed under the Apache License, Version 2.0 (the "License");
mega64 146:03e976389d16 5 * you may not use this file except in compliance with the License.
mega64 146:03e976389d16 6 * You may obtain a copy of the License at
mega64 146:03e976389d16 7 *
mega64 146:03e976389d16 8 * http://www.apache.org/licenses/LICENSE-2.0
mega64 146:03e976389d16 9 *
mega64 146:03e976389d16 10 * Unless required by applicable law or agreed to in writing, software
mega64 146:03e976389d16 11 * distributed under the License is distributed on an "AS IS" BASIS,
mega64 146:03e976389d16 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mega64 146:03e976389d16 13 * See the License for the specific language governing permissions and
mega64 146:03e976389d16 14 * limitations under the License.
mega64 146:03e976389d16 15 */
mega64 146:03e976389d16 16 #ifndef MBED_FLASH_DATA_H
mega64 146:03e976389d16 17 #define MBED_FLASH_DATA_H
mega64 146:03e976389d16 18
mega64 146:03e976389d16 19 #include <stdint.h>
mega64 146:03e976389d16 20
mega64 146:03e976389d16 21 // Target flash algorithm structure
mega64 146:03e976389d16 22 typedef struct {
mega64 146:03e976389d16 23 const uint32_t init;
mega64 146:03e976389d16 24 const uint32_t uninit;
mega64 146:03e976389d16 25 const uint32_t erase_sector;
mega64 146:03e976389d16 26 const uint32_t program_page;
mega64 146:03e976389d16 27 const uint32_t static_base;
mega64 146:03e976389d16 28 uint32_t *algo_blob;
mega64 146:03e976389d16 29 } flash_algo_t;
mega64 146:03e976389d16 30
mega64 146:03e976389d16 31 typedef struct {
mega64 146:03e976389d16 32 const uint32_t start;
mega64 146:03e976389d16 33 const uint32_t size;
mega64 146:03e976389d16 34 } sector_info_t;
mega64 146:03e976389d16 35
mega64 146:03e976389d16 36 typedef struct {
mega64 146:03e976389d16 37 const uint32_t page_size;
mega64 146:03e976389d16 38 const uint32_t flash_start;
mega64 146:03e976389d16 39 const uint32_t flash_size;
mega64 146:03e976389d16 40 const sector_info_t *sectors;
mega64 146:03e976389d16 41 const uint32_t sector_info_count;
mega64 146:03e976389d16 42 } flash_target_config_t;
mega64 146:03e976389d16 43
mega64 146:03e976389d16 44 // Target flash configuration
mega64 146:03e976389d16 45 struct flash_s {
mega64 146:03e976389d16 46 const flash_target_config_t *target_config;
mega64 146:03e976389d16 47 const flash_algo_t *flash_algo;
mega64 146:03e976389d16 48 };
mega64 146:03e976389d16 49
mega64 146:03e976389d16 50 typedef struct {
mega64 146:03e976389d16 51 uint32_t r0;
mega64 146:03e976389d16 52 uint32_t r1;
mega64 146:03e976389d16 53 uint32_t r2;
mega64 146:03e976389d16 54 uint32_t r3;
mega64 146:03e976389d16 55 uint32_t r9;
mega64 146:03e976389d16 56 uint32_t pc;
mega64 146:03e976389d16 57 } args_t;
mega64 146:03e976389d16 58
mega64 146:03e976389d16 59 typedef int32_t (*flash_algo_jump_t)(args_t*);
mega64 146:03e976389d16 60
mega64 146:03e976389d16 61 // prototypes for flash algo CMSIS API
mega64 146:03e976389d16 62
mega64 146:03e976389d16 63 typedef int (*CMSIS_Algo_Function_Init)(unsigned long adr, unsigned long clk, unsigned long fnc);
mega64 146:03e976389d16 64 typedef int (*CMSIS_Algo_Function_UnInit)(unsigned long fnc);
mega64 146:03e976389d16 65 typedef int (*CMSIS_Algo_Function_EraseSector)(unsigned long adr);
mega64 146:03e976389d16 66 typedef int (*CMSIS_Algo_Function_EraseChip)(void);
mega64 146:03e976389d16 67 typedef int (*CMSIS_Algo_Function_ProgramPage)(unsigned long adr, unsigned long sz, unsigned char *buf);
mega64 146:03e976389d16 68 typedef unsigned long (*CMSIS_Algo_Function_Verify)(unsigned long adr, unsigned long sz, unsigned char *buf);
mega64 146:03e976389d16 69
mega64 146:03e976389d16 70 #ifdef __cplusplus
mega64 146:03e976389d16 71 extern "C" {
mega64 146:03e976389d16 72 #endif
mega64 146:03e976389d16 73
mega64 146:03e976389d16 74 /* Set target configuration
mega64 146:03e976389d16 75 */
mega64 146:03e976389d16 76 void flash_set_target_config(flash_t *obj);
mega64 146:03e976389d16 77
mega64 146:03e976389d16 78 #ifdef __cplusplus
mega64 146:03e976389d16 79 };
mega64 146:03e976389d16 80 #endif
mega64 146:03e976389d16 81
mega64 146:03e976389d16 82
mega64 146:03e976389d16 83 #endif