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)

platform/mbed_mem_trace.c@148:8b0b02bf146f, 2017-04-27 (annotated)

Committer:
mega64
Date:
Thu Apr 27 23:56:38 2017 +0000
Revision:
148:8b0b02bf146f
Parent:
146:03e976389d16 
Remove unnecessary folders

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mega64 146:03e976389d16 1 /* mbed Microcontroller Library
mega64 146:03e976389d16 2 * Copyright (c) 2006-2016 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
mega64 146:03e976389d16 17 #include <stdlib.h>
mega64 146:03e976389d16 18 #include <stdarg.h>
mega64 146:03e976389d16 19 #include <stdio.h>
mega64 146:03e976389d16 20 #include "platform/mbed_mem_trace.h"
mega64 146:03e976389d16 21 #include "platform/mbed_critical.h"
mega64 146:03e976389d16 22
mega64 146:03e976389d16 23 /******************************************************************************
mega64 146:03e976389d16 24 * Internal variables, functions and helpers
mega64 146:03e976389d16 25 *****************************************************************************/
mega64 146:03e976389d16 26
mega64 146:03e976389d16 27 /* The callback function that will be called after a traced memory operations finishes. */
mega64 146:03e976389d16 28 static mbed_mem_trace_cb_t mem_trace_cb;
mega64 146:03e976389d16 29 /* 'trave_level' guards "trace inside trace" situations (for example, the implementation
mega64 146:03e976389d16 30 * of realloc() might call malloc() internally, and since malloc() is also traced, this could
mega64 146:03e976389d16 31 * result in two calls to the callback function instead of one. */
mega64 146:03e976389d16 32 static uint8_t trace_level;
mega64 146:03e976389d16 33
mega64 146:03e976389d16 34 /******************************************************************************
mega64 146:03e976389d16 35 * Public interface
mega64 146:03e976389d16 36 *****************************************************************************/
mega64 146:03e976389d16 37
mega64 146:03e976389d16 38 void mbed_mem_trace_set_callback(mbed_mem_trace_cb_t cb) {
mega64 146:03e976389d16 39 mem_trace_cb = cb;
mega64 146:03e976389d16 40 }
mega64 146:03e976389d16 41
mega64 146:03e976389d16 42 void *mbed_mem_trace_malloc(void *res, size_t size, void *caller) {
mega64 146:03e976389d16 43 if (mem_trace_cb) {
mega64 146:03e976389d16 44 if (core_util_atomic_incr_u8(&trace_level, 1) == 1) {
mega64 146:03e976389d16 45 mem_trace_cb(MBED_MEM_TRACE_MALLOC, res, caller, size);
mega64 146:03e976389d16 46 }
mega64 146:03e976389d16 47 core_util_atomic_decr_u8(&trace_level, 1);
mega64 146:03e976389d16 48 }
mega64 146:03e976389d16 49 return res;
mega64 146:03e976389d16 50 }
mega64 146:03e976389d16 51
mega64 146:03e976389d16 52 void *mbed_mem_trace_realloc(void *res, void *ptr, size_t size, void *caller) {
mega64 146:03e976389d16 53 if (mem_trace_cb) {
mega64 146:03e976389d16 54 if (core_util_atomic_incr_u8(&trace_level, 1) == 1) {
mega64 146:03e976389d16 55 mem_trace_cb(MBED_MEM_TRACE_REALLOC, res, caller, ptr, size);
mega64 146:03e976389d16 56 }
mega64 146:03e976389d16 57 core_util_atomic_decr_u8(&trace_level, 1);
mega64 146:03e976389d16 58 }
mega64 146:03e976389d16 59 return res;
mega64 146:03e976389d16 60 }
mega64 146:03e976389d16 61
mega64 146:03e976389d16 62 void *mbed_mem_trace_calloc(void *res, size_t num, size_t size, void *caller) {
mega64 146:03e976389d16 63 if (mem_trace_cb) {
mega64 146:03e976389d16 64 if (core_util_atomic_incr_u8(&trace_level, 1) == 1) {
mega64 146:03e976389d16 65 mem_trace_cb(MBED_MEM_TRACE_CALLOC, res, caller, num, size);
mega64 146:03e976389d16 66 }
mega64 146:03e976389d16 67 core_util_atomic_decr_u8(&trace_level, 1);
mega64 146:03e976389d16 68 }
mega64 146:03e976389d16 69 return res;
mega64 146:03e976389d16 70 }
mega64 146:03e976389d16 71
mega64 146:03e976389d16 72 void mbed_mem_trace_free(void *ptr, void *caller) {
mega64 146:03e976389d16 73 if (mem_trace_cb) {
mega64 146:03e976389d16 74 if (core_util_atomic_incr_u8(&trace_level, 1) == 1) {
mega64 146:03e976389d16 75 mem_trace_cb(MBED_MEM_TRACE_FREE, NULL, caller, ptr);
mega64 146:03e976389d16 76 }
mega64 146:03e976389d16 77 core_util_atomic_decr_u8(&trace_level, 1);
mega64 146:03e976389d16 78 }
mega64 146:03e976389d16 79 }
mega64 146:03e976389d16 80
mega64 146:03e976389d16 81 void mbed_mem_trace_default_callback(uint8_t op, void *res, void *caller, ...) {
mega64 146:03e976389d16 82 va_list va;
mega64 146:03e976389d16 83 size_t temp_s1, temp_s2;
mega64 146:03e976389d16 84 void *temp_ptr;
mega64 146:03e976389d16 85
mega64 146:03e976389d16 86 va_start(va, caller);
mega64 146:03e976389d16 87 switch(op) {
mega64 146:03e976389d16 88 case MBED_MEM_TRACE_MALLOC:
mega64 146:03e976389d16 89 temp_s1 = va_arg(va, size_t);
mega64 146:03e976389d16 90 printf(MBED_MEM_DEFAULT_TRACER_PREFIX "m:%p;%p-%u\n", res, caller, temp_s1);
mega64 146:03e976389d16 91 break;
mega64 146:03e976389d16 92
mega64 146:03e976389d16 93 case MBED_MEM_TRACE_REALLOC:
mega64 146:03e976389d16 94 temp_ptr = va_arg(va, void*);
mega64 146:03e976389d16 95 temp_s1 = va_arg(va, size_t);
mega64 146:03e976389d16 96 printf(MBED_MEM_DEFAULT_TRACER_PREFIX "r:%p;%p-%p;%u\n", res, caller, temp_ptr, temp_s1);
mega64 146:03e976389d16 97 break;
mega64 146:03e976389d16 98
mega64 146:03e976389d16 99 case MBED_MEM_TRACE_CALLOC:
mega64 146:03e976389d16 100 temp_s1 = va_arg(va, size_t);
mega64 146:03e976389d16 101 temp_s2 = va_arg(va, size_t);
mega64 146:03e976389d16 102 printf(MBED_MEM_DEFAULT_TRACER_PREFIX "c:%p;%p-%u;%u\n", res, caller, temp_s1, temp_s2);
mega64 146:03e976389d16 103 break;
mega64 146:03e976389d16 104
mega64 146:03e976389d16 105 case MBED_MEM_TRACE_FREE:
mega64 146:03e976389d16 106 temp_ptr = va_arg(va, void*);
mega64 146:03e976389d16 107 printf(MBED_MEM_DEFAULT_TRACER_PREFIX "f:%p;%p-%p\n", res, caller, temp_ptr);
mega64 146:03e976389d16 108 break;
mega64 146:03e976389d16 109
mega64 146:03e976389d16 110 default:
mega64 146:03e976389d16 111 printf("?\n");
mega64 146:03e976389d16 112 }
mega64 146:03e976389d16 113 va_end(va);
mega64 146:03e976389d16 114 }
mega64 146:03e976389d16 115