#ifndef USER_CALL_H
#define USER_CALL_H

/**
 * How to use this driver
 * 1. add follows to SECTIONS in link.ld such us "STM32F407ZGTx_FLASH.ld"
 *
..........................
SECTIONS
{
...
  .text{:
        . = ALIGN(4);
        __cmd_call_start = .;
        KEEP(*(__cmd_call))
        __cmd_call_end = .;
        . = ALIGN(4);
..................
  * 2. use CMD_EXPORT to bangding the cmd and function
exanple
#define CMD_ADC 1
int abc_deal(void){
    return 0;
}
CMD_EXPORT(CMD_ADC,abc_deal);

* 3. add
*/
typedef struct cfg_call_t
{
  int __cmd;
  int (*__func)(void);
}cfg_call_t;

#if defined(__CC_ARM) || defined(__CLANG_ARM) || defined(__GNUC__) || defined(__ADSPBLACKFIN__)
#define __SECTION(x) __attribute__((section(x)))
#define __USED __attribute__((used))
#elif defined(__IAR_SYSTEMS_ICC__)
#define __SECTION(x) @x
#define __USED __root
#else
#define __SECTION(x)
#define __USED
#endif

#define CMD_EXPORT(cmd, fuction) __USED const cfg_call_t cmd##_func __SECTION("__cmd_call") = { \
                                     .__cmd = cmd,                                             \
                                     .__func = fuction}



#endif