mbed-dev library fork for STM32F100R6 microcontroller (LQFP64, 24MHz, 32kB flash, 4kB ram, 2-channel DAC, HDMI CEC, very cheap) . Use in online compiler (instead mbed library) with selected platform Nucleo F103RB.
Fork of mbed-dev by
Tested and working:
- blink
- system frequency 24Mhz (with external xtal 8Mhz)
- stdio uart on pins PA_2-PA_3
- Serial on pins PA_9-PA_10
- AnalogOut on pins PA_4, PA_5 (DAC)
- AnalogIn on pins PA_0, PA_1, PA_2, PA_3, PA_4, PA_5, PA_6, PA_7, PB_0, PB_1, PC_0, PC_1, PC_2, PC_3, PC_5, PC_5
Notes:
- TIM2 is used for mbed needs (eq Timer, Ticker, wait etc. )
Simple test program:Import programtestF100R6
simple tests for STM32F100R6 microcontroller with dedicated library
Diff: api/semihost_api.h
- Revision:
- 0:9b334a45a8ff
diff -r 000000000000 -r 9b334a45a8ff api/semihost_api.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/api/semihost_api.h Thu Oct 01 15:25:22 2015 +0300 @@ -0,0 +1,93 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef MBED_SEMIHOST_H +#define MBED_SEMIHOST_H + +#include "device.h" +#include "toolchain.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if DEVICE_SEMIHOST + +#ifndef __CC_ARM + +#if defined(__ICCARM__) +inline int __semihost(int reason, const void *arg) { + return __semihosting(reason, (void*)arg); +} +#else + +#ifdef __thumb__ +# define AngelSWI 0xAB +# define AngelSWIInsn "bkpt" +# define AngelSWIAsm bkpt +#else +# define AngelSWI 0x123456 +# define AngelSWIInsn "swi" +# define AngelSWIAsm swi +#endif + +static inline int __semihost(int reason, const void *arg) { + int value; + + asm volatile ( + "mov r0, %1" "\n\t" + "mov r1, %2" "\n\t" + AngelSWIInsn " %a3" "\n\t" + "mov %0, r0" + : "=r" (value) /* output operands */ + : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */ + : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */ + ); + + return value; +} +#endif +#endif + +#if DEVICE_LOCALFILESYSTEM +FILEHANDLE semihost_open(const char* name, int openmode); +int semihost_close (FILEHANDLE fh); +int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode); +int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode); +int semihost_ensure(FILEHANDLE fh); +long semihost_flen (FILEHANDLE fh); +int semihost_seek (FILEHANDLE fh, long position); +int semihost_istty (FILEHANDLE fh); + +int semihost_remove(const char *name); +int semihost_rename(const char *old_name, const char *new_name); +#endif + +int semihost_uid(char *uid); +int semihost_reset(void); +int semihost_vbus(void); +int semihost_powerdown(void); +int semihost_exit(void); + +int semihost_connected(void); +int semihost_disabledebug(void); + +#endif + +#ifdef __cplusplus +} +#endif + +#endif