Hello everyone!
I want to use RTX 5 RTOS for my project using STM32 and for now I wanted to just blink an on-board LED, but it just stays on. Everything builds etc, but during debugging using GDB/OpenOCD combo in Eclipse IDE system stays in idle thread, displays messages like "Error: Failed to read memory at 0x10020000", "Error: Failed to read memory at 0x10021004" and "Error: Failed to read memory at 0x10020ffe" during each step and does not go to app_main thread nor gpioB_Thread which I use to blink LED at all. Here's my main.c file and GNU LD linker script file
/*---------------------------------------------------------------------------- * Includes *---------------------------------------------------------------------------*/ #include "cmsis_os2.h" #include "RTE_Components.h" /*---------------------------------------------------------------------------- * Thread initialization *---------------------------------------------------------------------------*/ osThreadId_t gpioB; /*------------------------------------------------------------------------- * GPIO B thread *---------------------------------------------------------------------------*/ GPIO_InitTypeDef GPIO_InitStructureB; void gpioB_Thread(void *argument) { while (1) { /* Toggle LED on PB12 */ // Reset bit will turn on LED (because the logic is interved) GPIO_ResetBits(GPIOB, GPIO_Pin_12); osDelay(1000); // Set bit will turn off LED (because the logic is interved) GPIO_SetBits(GPIOB, GPIO_Pin_12); osDelay(1000); } } /*---------------------------------------------------------------------------- * Application main thread *---------------------------------------------------------------------------*/ __NO_RETURN static void app_main(void *argument) { (void) argument; gpioB = osThreadNew(gpioB_Thread, NULL, NULL); osThreadExit(); for (;;) { } } int main(void) { RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); GPIO_InitStructureB.GPIO_Pin = GPIO_Pin_12; GPIO_InitStructureB.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_InitStructureB.GPIO_Speed = GPIO_Speed_2MHz; GPIO_Init(GPIOB, &GPIO_InitStructureB); SystemCoreClockUpdate(); osKernelInitialize(); // Initialize CMSIS-RTOS osThreadNew(app_main, NULL, NULL); if (osKernelGetState() == osKernelReady) { osKernelStart(); // Start thread execution } for (;;) { } }
/* ***************************************************************************** ** ** File : LinkerScript.ld ** ** Abstract : Linker script for STM32F103C8Tx Device with ** 64KByte FLASH, 20KByte RAM ** ** Set heap size, stack size and stack location according ** to application requirements. ** ** Set memory bank area and size if external memory is used. ** ** Target : STMicroelectronics STM32 ** ** ** Distribution: The file is distributed as is, without any warranty ** of any kind. ***************************************************************************** ** @attention ** ** <h2><center>© COPYRIGHT(c) 2014 Ac6</center></h2> ** ** Redistribution and use in source and binary forms, with or without modification, ** are permitted provided that the following conditions are met: ** 1. Redistributions of source code must retain the above copyright notice, ** this list of conditions and the following disclaimer. ** 2. Redistributions in binary form must reproduce the above copyright notice, ** this list of conditions and the following disclaimer in the documentation ** and/or other materials provided with the distribution. ** 3. Neither the name of Ac6 nor the names of its contributors ** may be used to endorse or promote products derived from this software ** without specific prior written permission. ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" ** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE ** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE ** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL ** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR ** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, ** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ** ***************************************************************************** */ /* Entry Point */ ENTRY(Reset_Handler) /* Highest address of the user mode stack */ _estack = 0x20005000; /* end of RAM */ /* Generate a link error if heap and stack don't fit into RAM */ _Min_Heap_Size = 0; /* required amount of heap */ _Min_Stack_Size = 0; /* required amount of stack */ /* Specify the memory areas */ MEMORY { FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 64K RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 20K } /* Define output sections */ SECTIONS { /* The startup code goes first into FLASH */ .isr_vector : { . = ALIGN(4); KEEP(*(.isr_vector)) /* Startup code */ . = ALIGN(4); } >FLASH /* The program code and other data goes into FLASH */ .text : { . = ALIGN(4); *(.text) /* .text sections (code) */ *(.text*) /* .text* sections (code) */ *(.glue_7) /* glue arm to thumb code */ *(.glue_7t) /* glue thumb to arm code */ *(.eh_frame) KEEP (*(.init)) KEEP (*(.fini)) . = ALIGN(4); _etext = .; /* define a global symbols at end of code */ } >FLASH /* Constant data goes into FLASH */ .rodata : { . = ALIGN(4); *(.rodata) /* .rodata sections (constants, strings, etc.) */ *(.rodata*) /* .rodata* sections (constants, strings, etc.) */ . = ALIGN(4); } >FLASH .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH .ARM : { __exidx_start = .; *(.ARM.exidx*) __exidx_end = .; } >FLASH .preinit_array : { PROVIDE_HIDDEN (__preinit_array_start = .); KEEP (*(.preinit_array*)) PROVIDE_HIDDEN (__preinit_array_end = .); } >FLASH .init_array : { PROVIDE_HIDDEN (__init_array_start = .); KEEP (*(SORT(.init_array.*))) KEEP (*(.init_array*)) PROVIDE_HIDDEN (__init_array_end = .); } >FLASH .fini_array : { PROVIDE_HIDDEN (__fini_array_start = .); KEEP (*(SORT(.fini_array.*))) KEEP (*(.fini_array*)) PROVIDE_HIDDEN (__fini_array_end = .); } >FLASH /* used by the startup to initialize data */ _sidata = LOADADDR(.data); /* Initialized data sections goes into RAM, load LMA copy after code */ .data : { . = ALIGN(4); _sdata = .; /* create a global symbol at data start */ *(.data) /* .data sections */ *(.data*) /* .data* sections */ . = ALIGN(4); _edata = .; /* define a global symbol at data end */ } >RAM AT> FLASH /* Uninitialized data section */ . = ALIGN(4); .bss : { /* This is used by the startup in order to initialize the .bss secion */ _sbss = .; /* define a global symbol at bss start */ __bss_start__ = _sbss; *(.bss) *(.bss*) *(COMMON) . = ALIGN(4); _ebss = .; /* define a global symbol at bss end */ __bss_end__ = _ebss; } >RAM /* User_heap_stack section, used to check that there is enough RAM left */ ._user_heap_stack : { . = ALIGN(4); PROVIDE ( end = . ); PROVIDE ( _end = . ); . = . + _Min_Heap_Size; . = . + _Min_Stack_Size; . = ALIGN(4); } >RAM /* Remove information from the standard libraries */ /DISCARD/ : { libc.a ( * ) libm.a ( * ) libgcc.a ( * ) } .ARM.attributes 0 : { *(.ARM.attributes) } }