в файле bl_export.c
//-----------------------------------------------------------------------------
// APPLICATION
//-----------------------------------------------------------------------------
#ifndef IS_BOOTLOADER
const volatile sBL_EXPORT bl_export __attribute__((used, section(".bl_export")));
//-----------------------------------------------------------------------------
// BOOTLOADER
//-----------------------------------------------------------------------------
#else // IS_BOOTLOADER
const sBL_EXPORT bl_export_func __attribute__((used, section(".bl_export"))) =
{
&set_pin, // bl_set_pin
&get_pin, // bl_get_pin
};
#endif // IS_BOOTLOADER
в файле bl_export.h
//-----------------------------------------------------------------------------
// Описание типов функций
//-----------------------------------------------------------------------------
typedef void t_bl_set_pin(const WORD pin, const BYTE value);
typedef int t_bl_get_pin(const WORD pin);
//-----------------------------------------------------------------------------
// typedef struct sBL_EXPORT
//-----------------------------------------------------------------------------
typedef struct sBL_EXPORT
{
t_bl_set_pin *bl_set_pin;
t_bl_get_pin *bl_get_pin;
};
в приложении
bl_export.bl_set_pin(WORKLED_PIN, wl_state? 1 : 0);
скрипт линкера библиотеки
MEMORY
{
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 32K
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 16K - 240 - 16
BL_EXPORT(rw!x) : ORIGIN = 0x08003F00, LENGTH = 240
}
SECTIONS
{
.bl_export :
{
KEEP(*(.bl_export));
} >BL_EXPORT
}
скрипт линкера приложения
MEMORY
{
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 32K
BOOTLOADER (rx) : ORIGIN = 0x08000000, LENGTH = 16K - 240 - 16
BL_EXPORT(rw!x) : ORIGIN = 0x08003F00, LENGTH = 240
}
SECTIONS
{
.bl_export (NOLOAD) :
{
KEEP(*(.bl_export));
} >BL_EXPORT
}
