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

Committer:
mega64
Date:
Mon Aug 29 01:00:12 2016 +0000
Revision:
145:54b3c5994df6
Parent:
134:c5ba39804b6b 
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_SEMIHOST_H
bogdanm 0:9b334a45a8ff 17 #define MBED_SEMIHOST_H
bogdanm 0:9b334a45a8ff 18
bogdanm 0:9b334a45a8ff 19 #include "device.h"
bogdanm 0:9b334a45a8ff 20 #include "toolchain.h"
bogdanm 0:9b334a45a8ff 21
bogdanm 0:9b334a45a8ff 22 #ifdef __cplusplus
bogdanm 0:9b334a45a8ff 23 extern "C" {
bogdanm 0:9b334a45a8ff 24 #endif
bogdanm 0:9b334a45a8ff 25
bogdanm 0:9b334a45a8ff 26 #if DEVICE_SEMIHOST
bogdanm 0:9b334a45a8ff 27
bogdanm 0:9b334a45a8ff 28 #ifndef __CC_ARM
bogdanm 0:9b334a45a8ff 29
bogdanm 0:9b334a45a8ff 30 #if defined(__ICCARM__)
mbed_official 134:c5ba39804b6b 31 static inline int __semihost(int reason, const void *arg) {
bogdanm 0:9b334a45a8ff 32 return __semihosting(reason, (void*)arg);
bogdanm 0:9b334a45a8ff 33 }
bogdanm 0:9b334a45a8ff 34 #else
bogdanm 0:9b334a45a8ff 35
bogdanm 0:9b334a45a8ff 36 #ifdef __thumb__
bogdanm 0:9b334a45a8ff 37 # define AngelSWI 0xAB
bogdanm 0:9b334a45a8ff 38 # define AngelSWIInsn "bkpt"
bogdanm 0:9b334a45a8ff 39 # define AngelSWIAsm bkpt
bogdanm 0:9b334a45a8ff 40 #else
bogdanm 0:9b334a45a8ff 41 # define AngelSWI 0x123456
bogdanm 0:9b334a45a8ff 42 # define AngelSWIInsn "swi"
bogdanm 0:9b334a45a8ff 43 # define AngelSWIAsm swi
bogdanm 0:9b334a45a8ff 44 #endif
bogdanm 0:9b334a45a8ff 45
bogdanm 0:9b334a45a8ff 46 static inline int __semihost(int reason, const void *arg) {
bogdanm 0:9b334a45a8ff 47 int value;
bogdanm 0:9b334a45a8ff 48
bogdanm 0:9b334a45a8ff 49 asm volatile (
bogdanm 0:9b334a45a8ff 50 "mov r0, %1" "\n\t"
bogdanm 0:9b334a45a8ff 51 "mov r1, %2" "\n\t"
bogdanm 0:9b334a45a8ff 52 AngelSWIInsn " %a3" "\n\t"
bogdanm 0:9b334a45a8ff 53 "mov %0, r0"
bogdanm 0:9b334a45a8ff 54 : "=r" (value) /* output operands */
bogdanm 0:9b334a45a8ff 55 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
bogdanm 0:9b334a45a8ff 56 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
bogdanm 0:9b334a45a8ff 57 );
bogdanm 0:9b334a45a8ff 58
bogdanm 0:9b334a45a8ff 59 return value;
bogdanm 0:9b334a45a8ff 60 }
bogdanm 0:9b334a45a8ff 61 #endif
bogdanm 0:9b334a45a8ff 62 #endif
bogdanm 0:9b334a45a8ff 63
bogdanm 0:9b334a45a8ff 64 #if DEVICE_LOCALFILESYSTEM
bogdanm 0:9b334a45a8ff 65 FILEHANDLE semihost_open(const char* name, int openmode);
bogdanm 0:9b334a45a8ff 66 int semihost_close (FILEHANDLE fh);
bogdanm 0:9b334a45a8ff 67 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
bogdanm 0:9b334a45a8ff 68 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
bogdanm 0:9b334a45a8ff 69 int semihost_ensure(FILEHANDLE fh);
bogdanm 0:9b334a45a8ff 70 long semihost_flen (FILEHANDLE fh);
bogdanm 0:9b334a45a8ff 71 int semihost_seek (FILEHANDLE fh, long position);
bogdanm 0:9b334a45a8ff 72 int semihost_istty (FILEHANDLE fh);
bogdanm 0:9b334a45a8ff 73
bogdanm 0:9b334a45a8ff 74 int semihost_remove(const char *name);
bogdanm 0:9b334a45a8ff 75 int semihost_rename(const char *old_name, const char *new_name);
bogdanm 0:9b334a45a8ff 76 #endif
bogdanm 0:9b334a45a8ff 77
bogdanm 0:9b334a45a8ff 78 int semihost_uid(char *uid);
bogdanm 0:9b334a45a8ff 79 int semihost_reset(void);
bogdanm 0:9b334a45a8ff 80 int semihost_vbus(void);
bogdanm 0:9b334a45a8ff 81 int semihost_powerdown(void);
bogdanm 0:9b334a45a8ff 82 int semihost_exit(void);
bogdanm 0:9b334a45a8ff 83
bogdanm 0:9b334a45a8ff 84 int semihost_connected(void);
bogdanm 0:9b334a45a8ff 85 int semihost_disabledebug(void);
bogdanm 0:9b334a45a8ff 86
bogdanm 0:9b334a45a8ff 87 #endif
bogdanm 0:9b334a45a8ff 88
bogdanm 0:9b334a45a8ff 89 #ifdef __cplusplus
bogdanm 0:9b334a45a8ff 90 }
bogdanm 0:9b334a45a8ff 91 #endif
bogdanm 0:9b334a45a8ff 92
bogdanm 0:9b334a45a8ff 93 #endif