STM CircleOS forum / Call application function from another application

repzak · 2009-02-23 13:17:16

Hello,

Will it be possible to call functions in 1. application from another, and how?

Kasper

Francis · 2009-02-23 13:36:23

Not easily.
A possibility that is quite dirty: CircleOS allows to modify the irq vectors. You could use an unused irq for this purpose. But you need to be sure that no other application will use this irq.
Another possibility (cleaner): you can see how CircleOS looks for the test application in the FAT (see CircleOS, menu_settings.c, line 734). CircleOS calls Fct_Init(), but it could call another function if you build an array of pointers to functions in the startup file.

repzak · 2009-02-23 17:12:56

Hello,

Sorry for all my questions,

Is it possible to get the sourcecode to fat.elf?

How can it be when i try to compile the circle.rprj i get this error with the embedded RAPP files:
Building C:\Users\kasper\Desktop\Circle\Circle\Applications\Hello\Hello.rapp
Unknown tool: $(Target.Tools.Linker)

Kasper

Francis · 2009-02-23 17:22:33

Here it is:

Code:

/********************* (C) COPYRIGHT 2007 RAISONANCE S.A.S. *******************/
/**
*
* @file     FAT_Startup.c
* @brief
* @author   FL
* @date     07/2007
*
**/
/******************************************************************************/

/* Exported constants --------------------------------------------------------*/
extern unsigned long _etext;
extern unsigned long _sidata;    /* start address for the initialization values of the .data section. defined in linker script */
extern unsigned long _sdata;     /* start address for the .data section. defined in linker script */
extern unsigned long _edata;     /* end address for the .data section. defined in linker script */

extern unsigned long _sbss;      /* start address for the .bss section. defined in linker script */
extern unsigned long _ebss;      /* end address for the .bss section. defined in linker script */

extern void _estack;             /* init value for the stack pointer. defined in linker script */

__attribute__ ((section(".isr_vector")))

long unsigned table [ 1 ] = {0x08006000};

__attribute__ ((section(".b1text")))

const int ___FAT_Startup_dummy_int = 0xFFFFFFFF;

and we have the following in FAT.ld

Code:

MEMORY
/***********************************************************
*
* 
*      Default linker script for STM32F103_128K_20K
*            Copyright RAISONANCE S.A.S. 2007
*
*
************************************************************/



/*    INCLUDE "STM32F10x_COMMON.ld"     */

/*
Common part of the linker scripts for STR32 devices
Copyright RAISONANCE 2007
You can use, modify and distribute thisfile freely, but without any waranty.
*/


/* default stack sizes. 

These are used by the startup in order to allocate stacks for the different modes.
*/

__Stack_Size = 1024 ;

PROVIDE ( _Stack_Size = __Stack_Size ) ;

__Stack_Init = _estack  - __Stack_Size ;

/*"PROVIDE" allows to easily override these values from an object file or the commmand line.*/
PROVIDE ( _Stack_Init = __Stack_Init ) ;

/*
There will be a link error if there is not this amount of RAM free at the end.
*/
_Minimum_Stack_Size = 0x100 ;



/*
this sends all unreferenced IRQHandlers to reset
*/


PROVIDE (   Undefined_Handler = 0 ) ;
PROVIDE (   SWI_Handler = 0 ) ;
PROVIDE (   IRQ_Handler = 0 ) ;
PROVIDE (   Prefetch_Handler = 0 ) ;
PROVIDE (   Abort_Handler = 0 ) ;
PROVIDE (   FIQ_Handler = 0 ) ;

PROVIDE (   NMIException = 0 ) ;
PROVIDE (   HardFaultException = 0 ) ;
PROVIDE (   MemManageException = 0 ) ;
PROVIDE (   BusFaultException = 0 ) ;
PROVIDE (   UsageFaultException = 0 ) ;
PROVIDE (   SVCHandler = 0 ) ;
PROVIDE (   DebugMonitor = 0 ) ;
PROVIDE (   PendSVC = 0 ) ;
PROVIDE (   SysTickHandler = 0 ) ;
PROVIDE (   WWDG_IRQHandler = 0 ) ;
PROVIDE (   PVD_IRQHandler = 0 ) ;
PROVIDE (   TAMPER_IRQHandler = 0 ) ;
PROVIDE (   RTC_IRQHandler = 0 ) ;
PROVIDE (   FLASH_IRQHandler = 0 ) ;
PROVIDE (   RCC_IRQHandler = 0 ) ;
PROVIDE (   EXTI0_IRQHandler = 0 ) ;
PROVIDE (   EXTI1_IRQHandler = 0 ) ;
PROVIDE (   EXTI2_IRQHandler = 0 ) ;
PROVIDE (   EXTI3_IRQHandler = 0 ) ;
PROVIDE (   EXTI4_IRQHandler = 0 ) ;
PROVIDE (   DMAChannel1_IRQHandler = 0 ) ;
PROVIDE (   DMAChannel2_IRQHandler = 0 ) ;
PROVIDE (   DMAChannel3_IRQHandler = 0 ) ;
PROVIDE (   DMAChannel4_IRQHandler = 0 ) ;
PROVIDE (   DMAChannel5_IRQHandler = 0 ) ;
PROVIDE (   DMAChannel6_IRQHandler = 0 ) ;
PROVIDE (   DMAChannel7_IRQHandler = 0 ) ;
PROVIDE (   ADC_IRQHandler = 0 ) ;
PROVIDE (   USB_HP_CAN_TX_IRQHandler = 0 ) ;
PROVIDE (   USB_LP_CAN_RX0_IRQHandler = 0 ) ;
PROVIDE (   CAN_RX1_IRQHandler = 0 ) ;
PROVIDE (   CAN_SCE_IRQHandler = 0 ) ;
PROVIDE (   EXTI9_5_IRQHandler = 0 ) ;
PROVIDE (   TIM1_BRK_IRQHandler = 0 ) ;
PROVIDE (   TIM1_UP_IRQHandler = 0 ) ;
PROVIDE (   TIM1_TRG_COM_IRQHandler = 0 ) ;
PROVIDE (   TIM1_CC_IRQHandler = 0 ) ;
PROVIDE (   TIM2_IRQHandler = 0 ) ;
PROVIDE (   TIM3_IRQHandler = 0 ) ;
PROVIDE (   TIM4_IRQHandler = 0 ) ;
PROVIDE (   I2C1_EV_IRQHandler = 0 ) ;
PROVIDE (   I2C1_ER_IRQHandler = 0 ) ;
PROVIDE (   I2C2_EV_IRQHandler = 0 ) ;
PROVIDE (   I2C2_ER_IRQHandler = 0 ) ;
PROVIDE (   SPI1_IRQHandler = 0 ) ;
PROVIDE (   SPI2_IRQHandler = 0 ) ;
PROVIDE (   USART1_IRQHandler = 0 ) ;
PROVIDE (   USART2_IRQHandler = 0 ) ;
PROVIDE (   USART3_IRQHandler = 0 ) ;
PROVIDE (   EXTI15_10_IRQHandler = 0 ) ;
PROVIDE (   RTCAlarm_IRQHandler = 0 ) ;
PROVIDE (   USBWakeUp_IRQHandler = 0 ) ;



/******************************************************************************/
/*                       Peripheral memory map                                */
/******************************************************************************/
/*this allows to compile the ST lib in "non-debug" mode*/


/* Peripheral and SRAM base address in the alias region */
PERIPH_BB_BASE        = 0x42000000;
SRAM_BB_BASE          = 0x22000000;

/* Peripheral and SRAM base address in the bit-band region */
SRAM_BASE             = 0x20000000;
PERIPH_BASE           = 0x40000000;

/* Flash registers base address */
PROVIDE ( FLASH_BASE            = 0x40022000);
/* Flash Option Bytes base address */
PROVIDE ( OB_BASE               = 0x1FFFF800);

/* Peripheral memory map */
APB1PERIPH_BASE      = PERIPH_BASE  ;
APB2PERIPH_BASE      = (PERIPH_BASE + 0x10000) ;
AHBPERIPH_BASE       = (PERIPH_BASE + 0x20000) ;

PROVIDE ( TIM2            = (APB1PERIPH_BASE + 0x0000) ) ;
PROVIDE ( TIM3            = (APB1PERIPH_BASE + 0x0400) ) ;
PROVIDE ( TIM4            = (APB1PERIPH_BASE + 0x0800) ) ;
PROVIDE ( RTC             = (APB1PERIPH_BASE + 0x2800) ) ;
PROVIDE ( WWDG            = (APB1PERIPH_BASE + 0x2C00) ) ;
PROVIDE ( IWDG            = (APB1PERIPH_BASE + 0x3000) ) ;
PROVIDE ( SPI2            = (APB1PERIPH_BASE + 0x3800) ) ;
PROVIDE ( USART2          = (APB1PERIPH_BASE + 0x4400) ) ;
PROVIDE ( USART3          = (APB1PERIPH_BASE + 0x4800) ) ;
PROVIDE ( I2C1            = (APB1PERIPH_BASE + 0x5400) ) ;
PROVIDE ( I2C2            = (APB1PERIPH_BASE + 0x5800) ) ;
PROVIDE ( CAN             = (APB1PERIPH_BASE + 0x6400) ) ;
PROVIDE ( BKP             = (APB1PERIPH_BASE + 0x6C00) ) ;
PROVIDE ( PWR             = (APB1PERIPH_BASE + 0x7000) ) ;

PROVIDE ( AFIO            = (APB2PERIPH_BASE + 0x0000) ) ;
PROVIDE ( EXTI            = (APB2PERIPH_BASE + 0x0400) ) ;
PROVIDE ( GPIOA           = (APB2PERIPH_BASE + 0x0800) ) ;
PROVIDE ( GPIOB           = (APB2PERIPH_BASE + 0x0C00) ) ;
PROVIDE ( GPIOC           = (APB2PERIPH_BASE + 0x1000) ) ;
PROVIDE ( GPIOD           = (APB2PERIPH_BASE + 0x1400) ) ;
PROVIDE ( GPIOE           = (APB2PERIPH_BASE + 0x1800) ) ;
PROVIDE ( ADC1            = (APB2PERIPH_BASE + 0x2400) ) ;
PROVIDE ( ADC2            = (APB2PERIPH_BASE + 0x2800) ) ;
PROVIDE ( TIM1            = (APB2PERIPH_BASE + 0x2C00) ) ;
PROVIDE ( SPI1            = (APB2PERIPH_BASE + 0x3000) ) ;
PROVIDE ( USART1          = (APB2PERIPH_BASE + 0x3800) ) ;

PROVIDE ( DMA             = (AHBPERIPH_BASE + 0x0000) ) ;
PROVIDE ( DMA_Channel1    = (AHBPERIPH_BASE + 0x0008) ) ;
PROVIDE ( DMA_Channel2    = (AHBPERIPH_BASE + 0x001C) ) ;
PROVIDE ( DMA_Channel3    = (AHBPERIPH_BASE + 0x0030) ) ;
PROVIDE ( DMA_Channel4    = (AHBPERIPH_BASE + 0x0044) ) ;
PROVIDE ( DMA_Channel5    = (AHBPERIPH_BASE + 0x0058) ) ;
PROVIDE ( DMA_Channel6    = (AHBPERIPH_BASE + 0x006C) ) ;
PROVIDE ( DMA_Channel7    = (AHBPERIPH_BASE + 0x0080) ) ;
PROVIDE ( RCC             = (AHBPERIPH_BASE + 0x1000) ) ;

/* System Control Space memory map */
SCS_BASE              = 0xE000E000;

PROVIDE ( SysTick         = (SCS_BASE + 0x0010) ) ;
PROVIDE ( NVIC            = (SCS_BASE + 0x0100) ) ;
PROVIDE ( SCB             = (SCS_BASE + 0x0D00) ) ;



/*    INCLUDE "STM32F103_128K_20K_DEF.ld"     */

/*
Linker subscript for STM32F103 definitions with 128K Flash and 20K RAM
Copyright RAISONANCE 2007
!!! This file is automatically generated by RIDE !!!
Do not modify it, as it will be erased at every link.
You can use, copy and distribute this file freely, but without any waranty.
*/

/* Memory Spaces Definitions */

MEMORY
{
  RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 16K
  FLASHB1 (r) : ORIGIN = 0x8000000, LENGTH = 0x0005FFC
  FLASH (rx) : ORIGIN = 0x8005FFC, LENGTH = 4K
  EXTMEMB0 (rx) : ORIGIN = 0x00000000, LENGTH = 0
  EXTMEMB1 (rx) : ORIGIN = 0x00000000, LENGTH = 0
  EXTMEMB2 (rx) : ORIGIN = 0x00000000, LENGTH = 0
  EXTMEMB3 (rx) : ORIGIN = 0x00000000, LENGTH = 0
}

/* higher address of the user mode stack */
_estack = 0x20005000;


/*    INCLUDE "sections_FLASH.ld"     */

/*
Common part of the linker scripts for STR71x devices in FLASH mode
(that is, the FLASH is seen at 0)
Copyright RAISONANCE 2005
You can use, modify and distribute thisfile freely, but without any waranty.
*/



/* Sections Definitions */

SECTIONS
{
    /* for Cortex devices, the beginning of the startup code is stored in the .isr_vector section, which goes to FLASH */
    .isr_vector :
    {
    . = ALIGN(4);
        KEEP(*(.isr_vector))            /* Startup code */
    . = ALIGN(4);
    } >FLASH
 
    /* for some STRx devices, the beginning of the startup code is stored in the .flashtext section, which goes to FLASH */
    .flashtext :
    {
    . = ALIGN(4);
        *(.flashtext)            /* Startup code */
    . = ALIGN(4);
    } >FLASH
 
    
    /* the program code is stored in the .text section, which goes to Flash */
    .text :
    {
        . = ALIGN(4);
        
        *(.text)                   /* remaining code */
        *(.text.*)                   /* remaining code */
        *(.rodata)                 /* read-only data (constants) */
        *(.rodata*)
        *(.glue_7)
        *(.glue_7t)

        . = ALIGN(4);
        _etext = .;
        /* This is used by the startup in order to initialize the .data secion */
        _sidata = _etext;
    } >FLASH
    
 

    /* This is the initialized data section
    The program executes knowing that the data is in the RAM
    but the loader puts the initial values in the FLASH (inidata).
    It is one task of the startup to copy the initial values from FLASH to RAM. */
    .data  : AT ( _sidata )
    {
        . = ALIGN(4);
        /* This is used by the startup in order to initialize the .data secion */
        _sdata = . ;
        
        *(.data)
        *(.data.*)

        . = ALIGN(4);
        /* This is used by the startup in order to initialize the .data secion */
        _edata = . ;
    } >RAM
    
    

    /* This is the uninitialized data section */
    .bss :
    {
        . = ALIGN(4);
        /* This is used by the startup in order to initialize the .bss secion */
        _sbss = .;
        
        *(.bss)
        *(COMMON)
        
        . = ALIGN(4);
        /* This is used by the startup in order to initialize the .bss secion */
        _ebss = . ;
    } >RAM
    
    PROVIDE ( end = _ebss );
    PROVIDE ( _end = _ebss );
    
    /* This is the user stack section 
    This is just to check that there is enough RAM left for the User mode stack
    It should generate an error if it's full.
     */
    ._usrstack :
    {
        . = ALIGN(4);
        _susrstack = . ;
        
        . = . + _Minimum_Stack_Size ;
        
        . = ALIGN(4);
        _eusrstack = . ;
    } >RAM
    

   
    /* this is the FLASH Bank1 */
    /* the C or assembly source must explicitly place the code or data there
    using the "section" attribute */
    .b1text (NOLOAD) :
    {
        FILL ( 0xFFFFFFFF );
        /**(.b1text)*/                   /* remaining code */
        /**(.b1rodata)*/                 /* read-only data (constants) */
        /**(.b1rodata*)*/
    } >FLASHB1
    
    /* this is the EXTMEM */
    /* the C or assembly source must explicitly place the code or data there
    using the "section" attribute */
    
    /* EXTMEM Bank0 */
    .eb0text :
    {
        *(.eb0text)                   /* remaining code */
        *(.eb0rodata)                 /* read-only data (constants) */
        *(.eb0rodata*)
    } >EXTMEMB0
    
    /* EXTMEM Bank1 */
    .eb1text :
    {
        *(.eb1text)                   /* remaining code */
        *(.eb1rodata)                 /* read-only data (constants) */
        *(.eb1rodata*)
    } >EXTMEMB1
    
    /* EXTMEM Bank2 */
    .eb2text :
    {
        *(.eb2text)                   /* remaining code */
        *(.eb2rodata)                 /* read-only data (constants) */
        *(.eb2rodata*)
    } >EXTMEMB2
    
    /* EXTMEM Bank0 */
    .eb3text :
    {
        *(.eb3text)                   /* remaining code */
        *(.eb3rodata)                 /* read-only data (constants) */
        *(.eb3rodata*)
    } >EXTMEMB3
    
    
}

repzak · 2009-02-23 19:33:08

I am not sure which startup file you want to add that list of pointers??

another solution, could maybe be to add a function to the circle_os that took a string with in for the application name and returns a pointer to a list of public functions in the other application...

Kasper

# 1 2009-02-23 13:17:16 Call application function from another application

Call application function from another application

# 2 2009-02-23 13:36:23 Call application function from another application

Re: Call application function from another application

# 3 2009-02-23 17:12:56 Call application function from another application

Re: Call application function from another application

# 4 2009-02-23 17:22:33 Call application function from another application

Re: Call application function from another application

Code:

Code:

# 5 2009-02-23 19:33:08 Call application function from another application

Re: Call application function from another application

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