__flash const byte s0[]=" MASTER ";
...

__flash byte s0[]=" MASTER ";
...

struct MENU{
__flash byte *st1;
__flash byte *st2;
//__flash byte *next;
}mas[]={
                            
  s0,
  s1,
...

typedef char const __flash *PFLASH_STR;
typedef char *PRAM_STR;
typedef void (*PCALLBACK)(void);


typedef struct tagMENU_ITEM
{
PFLASH_STR pFlashStr;
PRAM_STR pRamStr;
PCALLBACK cb;
} TMENU_ITEM, *PMENU_ITEM;

const __flash char fl_str0[] = "hello fl0";
const __flash char fl_str1[] = "hello fl1";
const __flash char fl_str2[] = "hello fl2";

char ram_str0[] = "hello ram";

void my_func(void)
{
}

void my_func2(void)
{
}

void my_func3(void)
{
}


TMENU_ITEM menuitems[] =
{
{ NULL, NULL, my_func },
{ fl_str0, NULL, NULL },
{ fl_str1, NULL, NULL },
{ fl_str2, NULL, my_func2 },
{ NULL, ram_str0, my_func3 }
};

#define COUNT(some_array) ( sizeof(some_array)/sizeof(some_array[0]) )


void flash_print( PFLASH_STR str )
{
char buf[ 32 ];
char *dst = buf;
while(*str)
*dst++ = *str++;
*dst = 0;
printf("%s", buf);
}


void MenuTest(void)
{
int i;
PMENU_ITEM pItem;

for (i = 0; i < COUNT( menuitems ); i++)
{
pItem = &menuitems[ i ];

if (pItem->pFlashStr)
flash_print( pItem->pFlashStr );
if (pItem->pRamStr)
printf("%s", pItem->pRamStr);
if (pItem->cb != NULL)
pItem->cb(); // Запуск функции обработки
}
}